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5种同期排卵-定时输精方案在奶牛场生产中的应用研究

作  者:
于淼;王洪利;马爱霞;胡士林;杨恒
单  位:
山东畜牧兽医职业学院;石河子大学
关键词:
奶牛;同期排卵;定时输精;孕酮栓
摘  要:
选择新疆石河子地区某规模化牛场300头产后泌乳奶牛,采用5种不同的"同期排卵+定时输精"处理方案,研究其对产后泌乳牛发情率、受胎率及21 d妊娠率的影响。结果表明:5组不同处理方案的产后泌乳奶牛发情率,受胎率及21 d妊娠率均显著高于未经任何处理的对照组(P<0.05)。因此,在规模化牛场对奶牛进行同期排卵方案处理时,增加一个孕酮栓装置,可以有效地提高定时输精后的受胎率,较好地提高奶牛场的繁殖效率。
译  名:
Application of five Ovsynch-TAI treatments in dairy cattle
作  者:
YU Miao;WANG Hongli;MA Aixia;HU Shilin;YANG Heng;Shandong Vocational Animal Science and Veterinary College;College of Animal Science and Technology,Shihezi University;
关键词:
dairy cow;;ovsynch;;TAI;;PD
摘  要:
In this study,five different treatments including 7 d-Ovsynch,PGF2α+Ovsynch,PGF2α+GnRH+Ovsynch,7 d-Ovsynch+PD,5 d-Ovsynch+PD were used to conduct the timing of insemination and ovulation for 300 postpartum lactating dairy cattle of a large-scale farm in Shihezi,Xinjiang. The results indicated that the estrus rate,pregnancy rate and 21 d pregnancy rate in five different treatments were significant higher than those in the control group( P<0. 05). Thus,using the ovsynch + PD in large-scale dairy cattle farm could effectively improve the efficiency of reproduction timing of the conception rate after insemination and preferably improve the economic benefits in dairy farm.

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