An embryonic supplement for improving the quality of broiler chicks and promoting early growth and its application

A broiler chick, quality technology, applied in the field of poultry early nutrition in animal husbandry, can solve the problems of no significant positive effect reports, lack of research on the regulation of poultry production performance, etc., to improve feed efficiency, good economic benefits, reduce The effect of weight loss

Active Publication Date: 2020-12-01
FEED RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Research on the regulation of poultry performance by adding NCG to feed is still scarce, and no significant positive effect has been reported

Method used

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  • An embryonic supplement for improving the quality of broiler chicks and promoting early growth and its application
  • An embryonic supplement for improving the quality of broiler chicks and promoting early growth and its application
  • An embryonic supplement for improving the quality of broiler chicks and promoting early growth and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] ——No food, no water, no feeding after hatching

[0017] 650 Ross 708 chicken commercial generation fertilized eggs (egg weight 56g ~ 64g, average weight 60g) were randomly assigned to 4 treatment groups: no injection control group, saline control group, 1mg NCG / piece injection group and 2mg NCG / piece injection group . The hatching conditions are: temperature (37.8±0.1)°C, relative humidity 60%, egg turning once every 1h (angle 270°). The temperature of the incubation room is (25.0±1.0)°C, and the relative temperature is 60% to 65%. On the 10th day of incubation, the eggs were illuminated, and the sterile eggs and dead embryonated eggs were removed. On the 17th day of incubation, the eggs were illuminated twice to remove dead embryos. Then it was adjusted to 117 chicken embryos in each treatment group, divided into 3 repetitions (each tray in the incubator was 1 repetition), and each repetition had 39 embryos. Subsequently, except the control group without injection,...

Embodiment 2

[0035] - Incubation phase and early feeding trials

[0036] 1. Incubation

[0037] 1800 Ross 308 commercial fertilized eggs were randomly assigned to 6 treatment groups, each treatment had 6 replicates, and each replicate had 50 eggs. Eggs were illuminated at embryonic age 7 and embryonic age 17 respectively, and free eggs and dead embryos were picked out. After candling eggs at the 17th embryonic age (dead embryos or sterile eggs need to be removed before injection), the number of embryonated eggs for each duplicate was adjusted to 45. Then, except the control group without injection, each embryon egg of the other 5 groups was injected with 0.1 mL of normal saline, or normal saline containing 1, 2, 4, 6 mg of NCG. After the chicken embryos are fed, all embryonated eggs are placed in the hatching baskets according to the order in the incubator, and hatched under the conditions of a temperature of 36.9°C and a relative humidity of 65%.

[0038]Hatching to 21 days (504h), tak...

Embodiment 3

[0046] ——Early feeding experiment

[0047] After the broiler chickens were hatched on the day of hatching, 80 male chicks were selected from each treatment, and each treatment had 8 replicates, and each replicate had 10 chickens. Three-layer cages, natural light plus artificial supplementary light, the light intensity is 30lx, 24h per day from 1 to 7 days, and 23L: 1D per day after 8 days. The feeding period is 21 days in total. Feeding management was carried out according to the routine procedures of broilers, with free access to food and water, and feeding broilers with pelleted rations. On the day of hatching, at the age of 7 days and at the age of 21 days, the chickens were weighed repeatedly, and the feed was collected at the age of 21 days, and the feed intake, body weight and feed efficiency were calculated. Birds were recorded when they died, and stage mortality was calculated.

[0048] Table 7 Production performance of broiler male chicks aged 0 to 21 days after ha...

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Abstract

The invention relates to an embryonic stage nourishing agent capable of improving broiler chicken quality and promoting early stage growth, and applications thereof. According to the applications, athatching later stage, each egg is provided with 0.1ml of N-carbamyl-L-glutamic acid through amnion cavity using a 1ml vaccine syringe (0.25 to 6.0mg / each egg), so that newly hatched chicken quality isimproved, broiler chicken early stage growth effect is improved, weight loss caused by 48h of fasting for solids and liquids of newly hatched chicken is reduced obviously, body weight on 21 days is increased by 40 to 80g each chicken, and forage efficiency is increased obviously. The 100<mu>l injection amount and unsealing technology possess following advantages: hatching efficiency is not influenced, efficiency is high, operation is convenient, injection 800 to 1000 eggs can be realized by one person in each hour, the embryonic stage nourishing agent is suitable to be used at small hatcheries, and the economical benefit is excellent.

Description

technical field [0001] The invention relates to an embryo-egg nourishment supplement for promoting the growth of broiler chickens and an application thereof, belonging to the technical field of early poultry nutrition in animal husbandry. Background technique [0002] With the rapid advancement of broiler breeding technology and feed nutrition technology, the growth rate of modern broiler chickens continues to accelerate, and the production cycle is further shortened. Broilers can reach a slaughter weight of more than 2.5kg after feeding for 40 days after hatching. Corresponding to the continuous shortening of the market age, the incubator of the broiler remains unchanged for 21 days, so the proportion of the incubation period to the life cycle increases relatively, which is close to 35% or more of the entire life cycle. The hatching stage of broiler poultry accounts for one-third of the life cycle. If nutritional regulation measures can be taken during the hatching stage t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N5/073
CPCC12N5/0604C12N2500/32
Inventor 张海军马友彪王晶武书庚齐广海
Owner FEED RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES
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