CN1615691A - Cultivating method for high quality meat chicken species - Google Patents
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Abstract
The present invention relates to cultivating method of high quality meat chicken variety and aims at raising meat chicken quality. The cultivating method includes selective breeding of meat chicken variety comprising three steps of introducing variety and observation, pure line propagation and measuring combining ability; compounding nutritious feed including compounding special feed and nutritious standard; and feeding operation including chickling feeding, adult chicken feeding, immunizing and preventing diseases.
Description
Technical field
The present invention relates to the improvement method of poultry new varieties, particularly the breeding method of new chicken kind.
Background technology
The breeding method of fryer kind is mainly operated three parts by the seed selection of chicken kind, feed nutrition preparation and feed and is formed.
One, chicken kind seed selection
Modern poultry breeding technology, particularly a breed of chicken all are to utilize heterosis, hybrid vigor constantly to select, the productivity and the build appearance of improvement chicken kind.
Along with economic development and living standards of the people improve, the demand of fryer is also being improved.Little Shaoxing plain chicken has a long history and huge market, and consumption is liked to increase year by year, and annual so far plain chicken 700,000 plumages that need can be increased to 1,000,000 plumages after 2 or three years, and demand increases, and quality is proposed requirements at the higher level.Now using " Shi Hong " chicken kind is to be maternal by coloured plumage, fast big chicken, and to be that male parent is supporting form growth rate to small body type chicken kind: 10 1.8 kilograms of ages in week of hen counterpoise, 13 2.3 kilograms of ages in week; The trunk form: trunk is big, and brisket is thick, rear quarters (full leg, back) ratio is low.Exist problems such as chicken freshness and protein are lower, growth rate very fast, adult chicken build is bigger.
Two, feed nutrition preparation
Poultry must be obtained the raw material that various nutriments are nutrition own by feed, as protein, fat, carbohydrate, mineral matter, vitamin etc. in the nutriment in growth, growth course.Different chicken kinds has different requirements to nutrition, and the chicken kind such as the fast macrospecies of the white plumage-AA chicken of growth have the high standard requirement to protein, energy and mineral matter fast; On the contrary, the chicken kind needs of slow growth are low.Each meat chicken kind must have a feed to finish body weight and stage (week) growth-weight gain standard, and feed nutrition determines and affects the early growth of chicken kind and raises and finish body weight.Feed nutrition preparation generally is to determine that according to chicken kind heritability trophic level carries out, and per stage of growth of meat chicken is different to nutritional need, and the feed nutrition standard is divided third gear, early, in and the later stage.Problems such as existing " Shi Hong " chicken kind does not have special feed, supports the later stage and wants material controlling, exists feed and expends increase, and production cost is higher, the delicious meat degree is not enough.
Three, raise operation
Raise the healthy growth of operation to chicken, feed conversion rate has conclusive effect, and raising comprises feed nutrition, the mode of feeding, aspects such as drinking water supply and feeding environment, immune programme for children, prevention from suffering from the diseases, and each chicken kind all has the universality and the particularity of raising.The external chicken kind (an age in days baby chick) of introducing must provide supporting breeding technology, by feeding standard, just can reach every productivity of this chicken kind.Now use " Shi Hong " chicken kind to exist in the raising, in case do not note to increase lethality, be lowered into problem such as motility rate to environment, immunity and prevention from suffering from the diseases requirement height.
Summary of the invention
One, chicken kind seed selection
Main purpose of the present invention provides a kind of high quality meat chicken kind breeding method, in order to solve the chicken freshness that existing usefulness " Shi Hong " chicken kind exists and protein content is lower slightly, growth rate very fast, the problems such as the chicken build is bigger of growing up.
The object of the present invention is achieved like this: chicken kind of the present invention seed selection comprises introduces a fine variety observation, pure-line breeding and combining ability test three steps.
1. introduce a fine variety observation: introduce the paternal stone qi of material chicken kind, Shen Huang, short yellow three, four of maternal red treasured, recessive white, new wide, Shi Hong carry out early growth to each chicken kind, adult weight and lay eggs the observation of reproductive performances such as hatching.
2. pure-line breeding: on the basis that performance, appearance are observed, determine that paternal line selects two of Shen Huang, Shi Qi for use, three of maternal red treasured, recessive white, Shi Hong enlarge breeder flock on the basis of pure-line breeding, and paternal product tie up to 500 plumages, and the maternal side product tie up to 2000 plumages.
3. combining ability test
(1) mensuration is established group: establish six hybridization groups, four control groups with Shen Huang, Shi Qi, red treasured, recessive four white chicken kinds for the first time.With Shen Huang, three chicken kinds of Shi Qi, Shen Hong, establish four hybridization groups for the second time, two control groups are established five hybridization groups with Shen Huang, Shi Qi, Shi Hong, Shen Hong, new wide five chicken kinds for the third time.
(2) mensuration project: I. commitment (week) weightening finish and 13 weeks finish heavy; II. trunk dressing percentage, build; III. the interior conventional nutrition of chicken, physical and chemical index; IV. quality is tasted test in the chicken.
(3) measurement result:
The all live-weights of boiled chicken with parsley 13 require 1.8～1.9 kilograms, measure for the first time with red treasured with stone qi, Shen Huang, white six two-way cross of recessiveness, the material controlling overgrowth is not too fast, and build is excessive.Second and third time measured hybridization group body weight and reached 1.8～1.9 kilograms just.Three way cross group high grade chook kind blood relationship accounts for more than 75%.
Butcher 1.3 kilograms of 13 all carcass weights, live chickens dismounting rate is 60%, and (decaptitate, pin) ripe chicken is satisfied consumer wants for 1.1 kilograms.Second and third time mensuration, the equal back leg of three way cross group enriches this side height.It is beautiful especially to measure the 3rd group of build for the third time, is Shen Huanggong * new wide female three way cross.
The taste of boiled chicken with parsley meat, three times mensuration is measured two-way cross for the first time, and three taste reflections are undesirable, measure three tastes for the second time, and first place is Shen Huang * Shen Hongmu; Second place stone qi public affairs * Shen Huangmu, measure secondary taste first place for the third time and be the three way cross Shen yellow public * new wide female, second place is two-way cross Shen Huang * stone qi reciprocal cross.
Final sumbission: No. 1, little Shaoxing high grade chook is supporting to be the red female group in Shen Huanggong * Shen, and No. 2 supporting is Shen Huanggong * new wide female, and No. 3 supporting is Shen Huang * stone qi reciprocal cross.
Advantages such as compare with used " Shi Hong " chicken, little Shaoxing high grade chook has chicken freshness height, and growth rate is slower, and the chicken build of growing up is less are fit to the high-level requirement of present stage boiled chicken with parsley.
Two, feed nutrition preparation
Second purpose of the present invention provides a kind of high quality meat chicken kind breeding method, and existing usefulness " Shi Hong " chicken kind does not have special feed, feed expends increase, production cost than problems such as height in order to solve.
The object of the present invention is achieved like this: feed nutrition preparation of the present invention comprises the preparation and the trophic level of special feed, and the preparation of the special feed of its medium and small Shaoxing high grade chook mainly comprises corn and dregs of beans; Percentage is weight percentage in its trophic level,
Diet nutrient is early stage energy 2950～2900 kilocalorie/kilograms, a protein 20～19%,
Diet nutrient is mid-term energy 2850～2800 kilocalorie/kilograms, a protein 18～17%,
Diet nutrient is later stage energy 2800～2900 kilocalorie/kilograms, protein 16～15%,
Before, during and after three phase calcium be respectively 0.7～1.2%, salt is respectively 0.3～0.8%.
The preparation of the special feed of little Shaoxing high grade chook comprises that also green feed additive is acid probio or alkaline photosynthetic bacteria, and concentration is every milliliter 108～1010 bacterial strain; This green feed additive is used acid probio in earlier stage, and the later stage is used alkaline photosynthetic bacteria; Wherein probio is one or more in Bifidobacterium Bifidum, streptococcus fecalis, bacillus subtilis and the bacillus licheniformis; Photosynthetic bacteria is defined as two to three bacterial strains at present, and relevant title is still unnamed, and usefulness is the Mixed Microbes of two bacterial strains wherein at present.Above-mentioned probio provides bacterial classification by the academy of agricultural sciences, Shanghai, and is preserved by this unit.Preserving number is: Bifidobacterium Bifidum SNC99-03, streptococcus fecalis SNC99-05, bacillus subtilis SNC99-06, bacillus licheniformis SNC99-07, photosynthetic bacteria numbering SNC98-09.
With 200 plumages, one age in days Shen Huang * red precious hen, and contrast, divide early stage, mid-term, later stage to test in totally 90 days with commercially available yellow-feather broiler fodder.Result of the test shows: adopt diet nutrient to be
Early stage energy 2950 kilocalorie/kilograms, protein 20%,
Mid-term energy 2850 kilocalorie/kilograms, protein 18%,
Later stage energy 2900 kilocalorie/kilograms, protein 16%,
These chicken 90 ages in days reach 1955 gram/plumages, and its daily gain and the price of deed improve 1.3% and 3.5% respectively than control group.And the feed cost of per kilogram weightening finish descends 6.1%, its trunk shape and control group no significant difference.
With the little Shaoxing of 200 plumages, one age in days high-quality hen, and contrast, divide early stage, mid-term, later stage to test in totally 90 days with commercially available yellow-feather broiler fodder.Result of the test shows: adopt diet nutrient to be
Early stage protein 19%, protein-caloric ratio 15.08,
Mtsp protein 17%, protein-caloric ratio 13.50,
Late protein 15%, protein-caloric ratio 11.90,
These chicken 90 ages in days reach 1950 gram/plumages, and its daily gain and the price of deed improve 5.91% and 7.05% and per kilogram weightening finish feed cost descends 1.54% respectively than control group.
Compare with used " Shi Hong " chicken, the present invention according to fryer grow up before, during and after the nutritional requirements of three phases make corresponding special feed, under the identical condition of broiler growth, feed expends minimizing, production cost descends.
Three, raise operation
The present invention's the 3rd purpose provides a kind of high quality meat chicken kind breeding method, and ' " the chicken kind requires problems such as high, that the fryer survival rate is low to feeding environment, immunity and prevention from suffering from the diseases to Shi Hong in order to solve existing usefulness.
The object of the present invention is achieved like this: raise operation and comprise the raising principle, raise between brood time, finishing period is raised, immunity and prevention from suffering from the diseases.Below describe in detail respectively.
(1) the raising principle of little Shaoxing high grade chook
1. chicken house booth requirement
Little Shaoxing high grade chook feeding period is longer relatively, and stocking density is higher, is the propagation of control disadvantage, chicken house should be selected relatively independent site, away from places such as residential block, arterial traffic, slaughter houses, take strict quarantine measures to cut off with extraneous, rationally control the stream of people and logistics.Booth building requirements physical features drying is convenient to ventilate, is incubated and grand temperature, and personnel operation is convenient, is convenient to sterilization, controls illumination, blowdown etc.
2. the raising pattern of all in all out
Employing is raised same batch, the fryer of same age in days at same chicken house or the same area, the feeding manner that also appears on the scene at one time later on, and the empty canopy time generally required more than 10 days.To thoroughly clean hen house during the empty canopy, carry out pasteurised completely.
3. set up the health and epidemic prevention system
Strange epidemic prevention comprises following substance: (1) does the strange and disinfection of environment well, and cleaning regularly and sterilization in the production area adhere to accomplishing chicken body, feed, the utensil of drinking water, feed, chicken house road and five on other apparatus be clean.(2) restriction of reinforcement turnover chicken house, producers necessarily can enter through sterilization, and nonproductive personnel generally must not enter, and chicken house is imported and exported sterilization pool is set, the necessary strict sterilization of personnel's vehicle turnover.
4. formulate immunization scheme and formulate rational immune programme for children, carry out chicken group's health service and note the long situation of chicken all living creatures, note abnormalities, in time ascertain the reason and take corrective action.
(2) raising of brood time
1. advance young preceding preparation
After the hen house cleaning, sterilization and empty canopy are treated ground drying in the canopy, the new bedding and padding that place mat dries routinely.Dry behind the equipment cleaning and sterilizing that uses in the hen house, place and check the thermo-insulated umbrella of usefulness of brooding, heating system is also through sterilization.Reach the previous day chick, beginning preheating hen house makes the temperature under the thermo-insulated umbrella reach 35 ℃, and the hen house temperature reaches 25 ℃, and adds water in drinking bowl, makes the temperature of drinking-water and room temperature approaching.Thermo-insulated umbrella is with 500/ arrangement.
2. brood early stage
In temperature low winter, after chick reaches, be placed in the hen house room temperature condition earlier and had a rest 1 hour down, add thermo-insulated umbrella again, in case the stress reaction of chick one a cold heat.Little Shaoxing chicken generally opened food in 24～36 hours after going out shell, open the food precontract and allowed chick drinking-water in 3 hours earlier, or teach its drinking-water.Drinking-water requires cleaning.Open the glucose or the sucrose that preferably add proper vitamin C and 5% in the preceding drinking-water of food.Chick goes in 2～3 days of canopy, and the drinking-water temperature generally requires to use cold water later on about 24 ℃.Chick opens that food is available raises rice dish or disregard message paper is evenly distributed on around the thermo-insulated umbrella, chick powder or chip material is sprinkled upon allows the chicken free choice feeding above ending, and after 2～3 days, uses the animal feeds bucket feeding, prevents feed waste.Can raise 500 chick under general each thermo-insulated umbrella, the thermo-insulated umbrella edge impales with the Polypropylence Sheet guardrail, prevents from that chicken from wandering away to catch a cold.Regulate the temperature of thermo-insulated umbrella according to the performance of chicken, but will note simultaneously ventilating.
3. the illumination of brood time
Light application time was gone into behind the canopy first day from chick, was begun by 24 little illumination, reduced by 1 little light application time every day, progressively carried out the transition to the natural lighting time.For well, intensity of illumination is about 10～25 luxs to light source with incandescent lamp.Fluorescent lamp light excitant is stronger, and the lighting time flicker, easily causes the scaring of chicken.Feeding of broiler light should not be very strong, and natural lighting is generally greater than 25 luxs, and open hen house or plastic tunnel are raised chickens, and should take to limit the measure of illumination in order to growth.
4. brood time temperature
The preference temperature that chick advances canopy requirement in first day is 33 ℃, be in the guardrail of thermo-insulated umbrella temperature with 29～33 ℃ for well, reduced by 1 ℃ in per 3 days later on, until dropping to room temperature, growth along with chick, can adopt progressively to raise the height of thermo-insulated umbrella and progressively enlarge the area of guardrail circle, chicken is grown under preference temperature.Chicken after the growth of waiting to moult is finished, can take off temperature at 30～35 ages in days fully.
5. brood time is drunk water
The amount of drinking water of chicken is relevant with chicken body weight and environmental temperature, and the chick of 1～7 age in days is in 27～32 ℃ of environment, and per day amount of drinking water 50～76 restrains, and the chick in 8～14 ages is at 65～107 grams.Chick stage can not be cut off the water supply in the drinking bowl in principle, especially will note drinking water fully night.The drinking-water tank cleans 2 times every day, guarantees the drinking-water cleaning.
6. brood time feed
The brood time feeding should on a small quantity repeatedly be avoided feed waste and keep the feed cleaning.Behind chicken 3 ages in days, use animal feeds bucket or groove feeding.Along with the growth of chicken, it is identical with the back of chicken that the height of animal feeds bucket or groove edge keeps, and chicken is searched for food conveniently, can keep the feed cleaning again, not by the fecal pollution of chicken.The brood time feed is the material in early stage of chicken, and feeding time was 1～4 age in week.Trophic level is consistent with the trophic level in the feed control, and material was searched for food along with the increase of body weight and progressively increased early stage.
(3) finishing period is raised
1. the raising area of finishing period and raising temperature and ventilation
The raising area of finishing period is 10～12/square metre, and per 100 plumages are provided with 3～5 square metres sports ground.According to climatic conditions change decision stocking density, should suitably reduce stocking density when temperature is high in feeding process, stocking density can suitably improve when temperature was low.Chick generally takes off temperature at 30 ages in days, takes off temperature back hen house temperature the most suitable chicken all living creatures length in the time of 10～24 ℃, and the food consumption rate that all makes too high or too low for temperature rises.The ventilating management of hen house is the long whether normal key factor of chicken all living creatures, and along with the increase of chicken body weight, the chicken group also progressively increases the needs of oxygen.Ventilating not only makes the chicken group obtain required oxygen, simultaneously also with the carbonic acid gas in the hen house, and waste gas and excessive steam discharges such as ammonia.Only note insulation, ignore ventilating problem, the chicken group can not normal growth, and can bring out respiratory disease.
2. finishing period is drunk water
The drinking trough length of finishing period chicken is 2.5 centimetres/plumage, and diameter is that 35 centimetres drinking bowl can be for 50 chicken drinking-water.Drinking bowl or groove require clean once every day.The amount of drinking water of chicken is that along with the increase of chicken age in days, amount of drinking water also progressively increases according to the decision of the temperature and humidity of environment; Along with temperature and rising, amount of drinking water also progressively increases.It is quantity-unlimiting to drink water, and should accomplish not cut off the water supply in drinking bowl or the groove, and drinking-water is advisable with about 15 ℃.
3. finishing period feed
The finishing period feed is mid-term material and the later stage material of chicken, from 5 ages in week ages to 10 in week with expecting mid-term, expect with the later stage after 10 all ages.Trophic level is consistent with the trophic level in the feed control, and intermediary and later stages feed feed intake progressively increases along with the increase of body weight.Early stage material transfers material in mid-term, mid-term material to and transfers the later stage to during material, and the transitional period of certain hour all should be arranged.Expect to transfer to early stage to expect that the transitional period is a week mid-term; The transitional period that mid-term material transfers the later stage material to is 3～5 days, notices that the feed intake of chicken is significantly increased in time transitional period.
(4) immunity and prevention from suffering from the diseases
1. the prevention of viral infectious
On the basis of foundation and the strange epidemic prevention system of strict execution, formulating effective immunization scheme is the major measure that keeps off infection with rational immune programme for children.Vaccine inoculation scheme and immune programme for children must be according to the disease transmission situation and the trend of there and then, and chicken group immune state is rationally formulated.Established immunization protocol and immune programme for children neither be unalterable, pass through the mensuration correction immune programme for children of chicken group antibody after immunization protocol is implemented at any time.Immunization protocol and immune programme for children that little Shaoxing chicken is recommended are as follows:
The vaccine usage of the chicken infectious disease inoculation of age in days prevention
3～4 infective bronchitis H120 drinking-water
12～14 ewcastle disease Lasota collunarium eye drips
16～18 infectious bursal disease D78 drinking-water
30～35 ewcastle disease Lasota drinking-water
65～70 ewcastle disease Lasota drinking-water
Inoculate simultaneously with the oil-emulsion inactivated vaccine and the seedling of living in the time of can be in the popular area of ewcastle disease, again in the once Newcastle disease attenuated seedling of 45～50 ages in days drinking-water inoculation in 12～14 ages in days.Be lower than 1: 32 when (5Log2) for chick ND maternal antibody HI titre, should be with weak malicious seedling immunity inoculation once in 5 ages in days, again in 14～16 ages in days with Lasota and inactivated vaccine booster immunization, drinking water to 50 ages in days once gets final product again.
2. the control of coccidiosis
Coccidiosis is the common disease of fryer, is period of disease when 1 monthly age generally.Though coccidiostat prevention coccidiosis that can be by adding in the feed, because coccidia more easily develops immunity to drugs and the coccidia kind is more, can be in feeding of broiler at fryer preventive usage during 1 monthly age, general administration time is a week.Attention will often substitute the coccidia medicine.
3. the control of other diseases
The other diseases of little Shaoxing chicken mainly is some bacterial infectious diseases, as Escherichia coli, salmonella and pasteurellosis etc.The important measures of controlling these diseases generations are control sources and improve the Nutrition Management level of raising.The strict health and epidemic prevention system of carrying out is stopped source of infection and is entered chicken house, finds illness isolation in time treatment in time as early as possible, and this class disease is controlled at minimum zone.
Compare with used " Shi Hong " chicken, the little Shaoxing of the present invention high grade chook have the immunity and premunition strong, particularly Infant Mortality is low, the survival rate advantages of higher.
Embodiment
Embodiment below in conjunction with effect is explained in detail the present invention.
Embodiment 1
Chicken kind seed selection combining ability test best of breed is selected No. 1 supporting baby chick in little Shaoxing for use, and three months feeding experiments are carried out in Shen Huang * Shen Hong combination.
Daily ration in the feed nutrition preparation is: early stage protein 19%, protein-caloric ratio 15.08, mtsp protein 17%, protein-caloric ratio 13.50.Late protein 15%, protein-caloric ratio 11.90%.
Raise operation and carry out according to the feeding and management standard, the result is as follows in raising:
Growth rate and survival rate see the following form
New three months feeding experiment body weight of chicken kind
Raise all 13 all survival rate material consumpting ratios of several two ten weeks 12 of Zhou Bazhou Saturday Thursday
2000 180 500 800 1250 1600 1830 1950 97％ 3.15
13 all trunk dressing percentages 75%, ripe chicken dismounting rate 60%, ripe chicken weigh 1.2 kilograms.
New chicken kind carcass Meat quality inspection is surveyed: 1. be that waterpower (water retention) is average 68.4%, high grade chook industry standard first class is 68%.2. tender degree and original " Shi Hong " chicken fiber height (tender) of muscle fibre degree ratio.3. inosinicacid (freshness) assay is average 4.9 milligrams, than " Shi Hong " chicken 4.72 height, reaches industry standard first class more than 4 milligrams.
2 tests of embodiment are replaced antibiotic and chemicals with green feed additive, eliminate the influence to the chicken body of antibiotic and synthetic drug.
Test select for use the 1 age in days Shen that little Shaoxing, Shanghai kind chicken house provides wide * red precious hen 110 plumages, be divided into two groups, establish five repetitions for every group, each repeats 11 plumages, every group 55 plumage.Control group adds salinomycin 55mg/kg, aureomycin 50mg/kg in daily ration, experimental group is added green feed additive 1000mg/kg of the present invention in daily ration, and be acid probio early stage, and the later stage is alkaline photosynthetic bacteria.Test chicken is raised in 100 * 85 centimeters two-layer cage, raises operation and carries out by the present invention, and feeding period is 90 days.
The organ of test chicken cuts open the inspection situation
Organs such as the heart of different disposal chicken, liver, lung, spleen are and see specific lesions during 70 ages in days, and the chicken that does not see green feed interpolation group has antibiotic and chemicals residual.
Result of the test sees Table 1, table 2.
Table 1 green feed additive is to the influence of little Shaoxing high grade chook productivity
Antibiotic group green feed additive group
Weightening finish in early stage (g) 562 557
The price of deed 1.93 1.95
Weightening finish in mid-term (g) 1,017 1015
The price of deed 2.95 2.93
Later stage weightening finish (g) 399 397
The price of deed 4.65 4.55
Full phase body weight (g) 2,018 2009
The price of deed 2.92 2.90
Survival rate (%) 98.33 98.33
Table 2 green feed additive is to the influence of little Shaoxing high grade chook carcass trait
Antibiotic group green feed additive group
Dressing percentage (%) 86.68 ± 0.77 87.11 ± 0.98
Half clean thorax rate (%) 79.11 ± 0.23 80.92 ± 2.14
Complete clean thorax rate (%) 66.22 ± 1.84 67.40 ± 1.90
Abdomen fat (g) 35.33 ± 7.57 42.66 ± 27.73
Thick (nm) 0.36 of subcutaneous fat ± 0.20 0.43 ± 0.17
The yellow 1.7.3 of shin ± 0.58 1.7.5 ± 0.34
The yellow 2.3.3 of skin ± 0.57 2.4.3 ± 1.0
From table 1,2 visible weightening finish, efficiency of feed utilization and the carcass traits that add each phase behind the green feed additives all with the antibiotic no significant difference.The experimental group chicken all grows normally, does not have mass-sending property disease and takes place, and illustrates that green feed additive is a kind of safe and reliable additive, and leading indicator has reached the requirement of little Shaoxing high grade chook, does not have antibiotic medicine residual simultaneously.
Claims (7)
1. high quality meat chicken kind breeding method comprises the seed selection of chicken kind, feed nutrition preparation and raises operation, it is characterized in that: wherein the seed selection of chicken kind comprises and introduces a fine variety observation, pure-line breeding and combining ability test three steps; The feed nutrition preparation comprises the preparation and the trophic level of special feed; Raise operation and comprise that brood time is raised, finishing period is raised reason, immunity and prevention from suffering from the diseases.
2. high quality meat chicken kind breeding method according to claim 1, it is characterized in that: its medium and small Shaoxing high grade chook kind selection comprises introduces a fine variety observation, pure-line breeding and combining ability test, and it is realized by following steps:
(1) introduce a fine variety observation: introduce a fine variety the paternal stone qi of material chicken kind, Shen Huang, short yellow three, four of maternal red treasured, recessive white, new wide, Shi Hong carry out early growth, adult weight and lay eggs, hatch reproductive performance and observe each chicken kind;
(2) pure-line breeding: on the basis that performance, appearance are observed, determine that paternal line selects two of Shen Huang, Shi Qi for use, three of maternal red treasured, recessive white, Shi Hong enlarge breeder flock on the basis of pure-line breeding;
(3) combining ability test: a plurality of chicken kinds are divided set up hybridization group, control group three times; The mensuration project is carried out according to the order of sequence include commitment (week) weightening finish and finished in 13 weeks heavy, trunk dressing percentage, build, the conventional nutrition of chicken, physical and chemical index, chicken meat quality is tasted and is tested; Projects are divided the analysis of three measurement results.
3. as high quality meat chicken kind breeding method as described in the claim 2, it is characterized in that: No. 1 supporting Shen Huanggong of being * Shen Hongmu of its medium and small Shaoxing high grade chook, No. 2 supporting is Shen Huanggong * new wide female, No. 3 are supporting is Shen Huang * stone qi reciprocal cross.
4. high quality meat chicken kind breeding method according to claim 1, it is characterized in that: the preparation of the special feed of its medium and small Shaoxing high grade chook feed nutrition preparation mainly comprises corn and dregs of beans; Its trophic level percentage is weight percentage,
Diet nutrient is early stage energy 2950～2900 kilocalorie/kilograms, a protein 20～19%,
Diet nutrient is mid-term energy 2850～2800 kilocalorie/kilograms, a protein 18～17%,
Diet nutrient is later stage energy 2800～2900 kilocalorie/kilograms, protein 16～15%,
Before, during and after three phase calcium be respectively 0.7～1.2%, salt is respectively 0.3～0.8%.
5. high quality meat chicken kind breeding method as claimed in claim 4 is characterized in that: the preparation of the special feed of its medium and small Shaoxing high grade chook feed nutrition preparation comprises that also green feed additive is acid probio or alkaline photosynthetic bacteria, and concentration is every milliliter 10
8-10
10Bacterial strain.
6. as high quality meat chicken kind breeding method as described in the claim 5, it is characterized in that: probio is one or more in Bifidobacterium Bifidum, streptococcus fecalis, bacillus subtilis and the bacillus licheniformis.
7. as high quality meat chicken kind breeding method as described in the claim 5, it is characterized in that: wherein green feed additive is acid probio in earlier stage, and the later stage is alkaline photosynthetic bacteria.
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| CN115119803A (en) * | 2022-06-30 | 2022-09-30 | 四川省畜牧科学研究院 | Breeding method of super-high-quality green-foot spotted-brown feather broiler chicken |
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