High-density breeding method for factory-like sheep raising

Abstract

Provided is a high-density breeding method for factory-like sheep raising. The method comprises the following steps: selecting the type of basic ewes of multiple pregnancies; carrying out estrus synchronization, artificial insemination and b-ultrasonography pregnancy tests on lambing ewes during a suckling period of lambs to achieve factory-like breeding production of ewes giving birth twice per year; adjusting nutrition during the gestation period and suckling period for breeding ewes, that is to say, giving different nutrition standards to different production phases; separating ewes and lambs by fences after lambs are delivered at the early period and timely suckling; caring lambs at the early stage to increase the survival rate of lambs; carrying out supplementary feeding on new lambs at the early stage; weaning lambs at the age of 30 days at the early stage; starting breeding young sheep which is at the age of more than 7 months and with the weight above 35kg; and selecting the excellent ewes in the population giving birth to 3-4 lambs as reserved ewes. The high-density breeding method for factory-like sheep raising has the following beneficial effects: the breeding period of ewes is shortened so that breeding density of ewes is greatly increased; the annular number of lambs delivered by ewes is increased; production potential of ewe breeding is exerted so that the sheep raising benefit is greatly improved.

Description

technical field [0001] The invention relates to the technical field of sheep breeding, in particular to a high-density breeding method for industrialized sheep raising. Background technique [0002] The reproductive rate of ewes is the key link to improve the efficiency of sheep farms, especially in the production and operation of raising sheep in sheds, the feed cost of sheep accounts for more than 70% of the cost of raising sheep. The sheep are in a state of loss. At present, most large-scale sheep and ewes are bred with three litters in two years, and each litter cannot guarantee more than two lambs. If all the lambs survive and go to the slaughter, the feed cost for ewes cannot be met. Some ewes that give birth to multiple lambs have a low survival rate due to insufficient nutritional supply and poor fetal development. Secondly, sheep farms are extensively managed, and factors that restrict reproduction such as empty fetuses, single births, abortions, and birth canal i...

AI Technical Summary

Problems solved by technology

At present, most sheep and ewes are bred in large-scale houses with three litters in two years, and each litter cannot guarantee more than two lambs. If all the lambs survive and go out to the slaughter, the feed cost for ewes cannot be met.

Some ewes that give birth to multiple lambs in one litter have low survival rate due to insufficient nutritional supply and poor fetal development.

Secondly, th

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