Breeding method of free-range laying hens

Abstract

The invention discloses a breeding method of free-range laying hens. The method comprises the following steps: (1) chicken raising period: choosing healthful chickens, grouping the healthful chickens after sex identification, and breeding the chickens to be six weeks old in cages with screen beds which are 40 centimeters high or on the ground with thick padded materials; (2) adult raising period: releasing the 7-17-week-old chickens in forest lands or mutinous lands; feeding cocks with adult-period cock feed, feeding hens with adult-period hen feed, and selecting hens as breeding hens at random; reserving breeding hens at the proportion of ratios of male and female 1:8 - 1:12; (3) raising in independent cages and egg producing period: raising the cocks and the hens in cages, conducting artificial insemination, raising the cocks and the hens to be 45 weeks old, and developing individual or family selective breeding according to egg production of 40-week-old hens and early-period growth speed; (4) forest land or mountainous land releasing egg producing period: releasing all 46-60-week-old cocks and hens in forest lands or mountainous lands, allowing the cocks and the hens to collect food by themselves and mate naturally. The method has the advantages of remarkably increasing free-range selecting and breeding effect, improving the chicken survival rate and the adult raising rate, improving average egg production and average egg weight in the egg producing period, and enabling the passing rate and the fertilization rate of hatching eggs to be improved.

Description

technical field [0001] The invention relates to a breeding method for native chicken laying hens, which is mainly applied in the technical field of poultry raising and breeding. Background technique [0002] With the rapid development of my country's social economy and the continuous improvement of people's living standards and quality, the market has put forward higher requirements for the quality of chicken and eggs. People are more and more advocating nature and returning to basics. The domestic chicken industry is moving towards High-quality, safe, high-efficiency, low-consumption, and small-sized chickens are becoming more and more popular in the market because of their excellent characteristics. The traditional method of raising native chickens in rural areas is relatively simple. Generally, they are grazing and feeding during the day, eating wild fruits, tree seeds, grass, insects and ants, etc., and automatically return to the chicken coop to inhabit in the evening, a...

AI Technical Summary

Problems solved by technology

For a long time, according to people's consumption habits and market demand, local native chickens are mixed with males and females. Generally, roosters are raised until they are 13 to 17 weeks old and go on the market (young roosters), and hens are raised at 46 to 60 weeks after laying eggs and then they are marketed as high-quality old hens. ; However, due to the slow growth of chicks and low egg production rate, production efficiency and market competitiveness are affected

On the other hand, local native chickens have significant nesting ability. The combination of low egg production performance and growth rate has a strong nesting ability, which seriously affects the reproductive performance of local native chickens and limits the expansion and promotion of native chickens.

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