Embryo cryopreservation is an important part of embryo biotechnology.It plays a key role in the development of quality animal husbandry.However,the effect of in-vivo(in-vitro)embryo freezing of cattle and sheep in Chi...Embryo cryopreservation is an important part of embryo biotechnology.It plays a key role in the development of quality animal husbandry.However,the effect of in-vivo(in-vitro)embryo freezing of cattle and sheep in China has not reached an expected level,which limits the commercial application of embryo transfer technology.The technical bottleneck that needs to be broken through is that embryos are subject to mechanical damage and protective agent toxicity during freezing and thawing.This paper summarized the successful application of plant antifreeze protein in vitrification preservation of pig embryos,which makes this technology widely used in animal husbandry production,and is of great significance in accelerating the large-scale breeding of improved livestock and saving endangered animals.展开更多
[Objectives] This study was conducted to investigate the effect of mixed silage of mulberry branches and leaves on the production performance of Tan Han hybrid mutton sheep and explore the feasibility in production. [...[Objectives] This study was conducted to investigate the effect of mixed silage of mulberry branches and leaves on the production performance of Tan Han hybrid mutton sheep and explore the feasibility in production. [Methods] Twenty-six Tan Han hybrid mutton sheep were selected and divided into two groups, 13 in each group. The experimental group was fed with the mixed silage and the control group(CK) was fed with whole-plant corn silage. [Results] The average daily weight gain per sheep of the experimental group was 9.2% higher than that of the CK(P<0.05), and the feed conversion ratio was decreased by 6.98%(P<0.05). The average daily weight gain per sheep in the 30 d improved the gross profit by 7.75 yuan, which meant an increase of 16.32%. [Conclusions] The mulberry mixed silage is feasible in the production, and it could significantly improve the production performance of the hybrid mutton sheep.展开更多
基金Supported by Key Project of Qiqihar Science and Technology Program(ZDTG-202201)Qiqihar Innovation Incentive Project(CNGG-2021015)。
文摘Embryo cryopreservation is an important part of embryo biotechnology.It plays a key role in the development of quality animal husbandry.However,the effect of in-vivo(in-vitro)embryo freezing of cattle and sheep in China has not reached an expected level,which limits the commercial application of embryo transfer technology.The technical bottleneck that needs to be broken through is that embryos are subject to mechanical damage and protective agent toxicity during freezing and thawing.This paper summarized the successful application of plant antifreeze protein in vitrification preservation of pig embryos,which makes this technology widely used in animal husbandry production,and is of great significance in accelerating the large-scale breeding of improved livestock and saving endangered animals.
基金Supported by Ningxia Key R&D Program(2019BBF02016)Special Fund for Agricultural Science and Technology Independent Innovation of Ningxia Academy of Agriculture and Forestry Sciences
文摘[Objectives] This study was conducted to investigate the effect of mixed silage of mulberry branches and leaves on the production performance of Tan Han hybrid mutton sheep and explore the feasibility in production. [Methods] Twenty-six Tan Han hybrid mutton sheep were selected and divided into two groups, 13 in each group. The experimental group was fed with the mixed silage and the control group(CK) was fed with whole-plant corn silage. [Results] The average daily weight gain per sheep of the experimental group was 9.2% higher than that of the CK(P<0.05), and the feed conversion ratio was decreased by 6.98%(P<0.05). The average daily weight gain per sheep in the 30 d improved the gross profit by 7.75 yuan, which meant an increase of 16.32%. [Conclusions] The mulberry mixed silage is feasible in the production, and it could significantly improve the production performance of the hybrid mutton sheep.
