孕酮栓放置时间对奶山羊同期发情效果的影响  

Effect of Different Durations of Progesterone Suppository on Estrus Synchronization in Dairy Goats

作　　者：孙爽[1] 赵青平 张嘉娇 韩灿宇 余世锋 童超 SUN Shuang;ZHAO Qingping;ZHANG Jiajiao;HAN Canyu;YU Shifeng;TONG Chao(College of Life Science and Agricultural Engineering,Nanyang Normal University,Nanyang 473000,China;Henan Jianyang Animal Husbandry Co.,Ltd.,Nanyang 473000,China;College of Veterinary Medicine,Henan Agricultural University,Zhengzhou 450000,China)

机构地区：[1]南阳师范学院生命科学与农业工程学院,南阳473000 [2]河南健羊牧业有限公司,南阳473000 [3]河南农业大学动物医学院,郑州450000

出　　处：《中国草食动物科学》2024年第1期76-79,共4页China Herbivore Science

基　　金：南阳师范学院博士专项(218312)。

摘　　要：为研究孕酮栓放置时间对奶山羊繁殖性能和阴道炎发病率的影响,选取336只同质性好的健康雌性奶山羊分为A、B、C、D四组,每组84只。在A、B、C、D组试验羊阴道内分别放置含有45 mg孕酮的海绵栓8、10、12、14 d,所有试验羊均在撤栓前12 h和撤栓时各肌内注射25 IU FSH(卵泡刺激素)。结果表明,放栓14 d的D组阴道炎发生率显著高于放栓8 d的A组羊(P<0.05);A组羊发情起始时间大于其他各组(P<0.05)。放栓12 d的C组羊受胎率显著高于放栓8 d的A组羊和10 d的B组羊(P<0.05),发情率与所产羔羊断奶重均显著高于A组羊(P<0.05),阴道炎发病率未见显著增加(P>0.05)。说明阴道放置孕酮海绵栓12 d,结合注射50 IU FSH的同期发情方案可使奶山羊获得最优的繁殖效率,该方案可在山羊生产中广泛应用。In order to study the effects of different placement times of intravaginal progesterone sponge on the reproductive performance and vaginitis incidence in dairy goats,336 healthy female dairy goats with good homogeneity were selected and divided into four groups(A,B,C,D),with 84 in each group.The sponge containing 45 mg progesterone was placed in the vagina of group A,B,C and D goats for 8,10,12 and 14 days respectively.All goats were injected with 25 IU FSH(follicle stimulating hormone)12 hours before and at the time of withdrawal.The results showed that the incidence of vaginitis in group D was significantly increased than that in group A(P<0.05);the onset time of estrus in group A was greater than that in other groups(P<0.05).The pregnancy rate of group C was significantly higher than that of group A and B(P<0.05);the estrus rate and weaning weight of kids in group C were significantly higher than those of group A(P<0.05);the incidence rate of vaginitis did not increase significantly(P>0.05).It showed that the estrus synchronization scheme of placing progesterone sponge in vagina for 12 days combined with injection of 50 IU FSH could make the dairy goat obtain the best reproductive efficiency.This scheme can be widely used in goat production.

关 键 词：孕酮栓 奶山羊 同期发情 阴道炎 繁殖性能 

分 类 号：S827[农业科学—畜牧学]