近年,我国的奶绵羊产业发展迅速,繁育性能作为奶绵羊产业发展的前提和基础,是决定经济收益的重要指标,对产业发展意义重大。奶绵羊可能会受到多种因素的影响,导致羊群繁育性能下降,这会损害奶绵羊产业的发展。因此,本文梳理了奶绵羊繁育性能的影响因素,并总结了相应的对策,旨在为提高奶绵羊繁育性能提供一些科学的参考依据。
In recent years,China's dairy sheep industry has developed rapidly,and reproductive performance,as the premise and basis of the development of dairy sheep industry,is an important indicator to determine economic returns,and is of great significance to the development of the industry. Dairy sheep can be affected by a variety of unfavorable factors,resulting in a decrease in the reproductive performance of the flock,which can harm the development of the dairy sheep industry. Therefore, this paper sorted out the influencing factors of the reproductive performance of dairy sheep and summarized the corresponding countermeasures,aiming to provide some scientific reference for improving the reproductive performance of dairy sheep.
[1] Wu X, Zhang G, Zhang W, et al.Rumen microbiota helps Tibetan sheep obtain energy more efficiently to survive in the extreme environment of the Qinghai-Tibet Plateau[J]. Frontiers in Microbiology,2024(15):1431063.
[2] AlFraj N K. Determinants of meat and milk production of Awassi sheep in Syria: A cobb-douglas production function estimation approach[J].Heliyon,2024,10(14):e34566.
[3] 宋宇轩,张磊,周勇,等.世界奶绵羊产业及种质资源概况[J].中国乳业,2022 (2):26-35.
[4] Wanjala G,Kusuma Astuti P,Bagi Z,etal. A review on the potential effects of environmental and economic factors on sheep genetic diversity:Consequences of climate change[J]. Saudi Journal Of Biological Sciences. 2023,30(1):103505.
[5] Sejian V,Silpa M V,Reshma Nair M R,et al. Heat stress and goat welfare:Adaptation and production considerations[J]. Animals (Basel),2021,11(4):1021.
[6] Nudda A,Carta S,Battacone G,etal. Feeding and nutritional factors that affect somatic cell counts in milk of sheep and goats[J]. Veterinary Sciences,2023,10(7):454.
[7] Tiezzi F,Tomassone L,Mancin G,etal.The Assessment of housing conditions,management,animal-based measure of dairy goats’welfare and its association with productive and reproductive traits[J].Animals (Basel),2021,9(11):893.
[8] van Marle-Köster E,Visser C.Unintended consequences of selection for increased production on the health and welfare of livestock[J].Archives Animal Breeding,2021,64(1):177-185.
[9] Murphy T W,Freking B A,Bennett G L. Comparison of three maternal composite sheep breeds managed under pasture lambing and purebred or terminal mating systems:ewe body weight,reproductive efficiency,and longevity[J]. Journal of Animal Sciences,2023,101:skac418.
[10] Freking B A,Murphy T W. Comparison of performance of F1 Romanov crossbred ewes with wool and hair breeds during spring lambing under intensive and extensive production systems[J].Journal of Animal Sciences,2021,99(1):skaa397.
[11] 郑重,张功,任志强,等.我国奶绵羊产业现状与发展方向[J].中国乳业,2019(8):27-31.
[12] Karthik D,Suresh J,Reddy Y R,et al.Farming systems in sheep rearing:Impact on growth and reproductive performance,nutrient digestibility,disease incidence and heat stress indices[J]. PLoS One,2021,16(1):e0244922.
[13] Aydin K B,Bi Y,Brito L F,etal. Review of sheep breeding and genetic research in Türkiye[J]. Front Genet. 2024,15:1308113.