本文選題：同期發(fā)情　切入點：巴音布魯克羊　出處：《新疆農(nóng)業(yè)大學》2016年碩士論文

【摘要】：隨著綿羊生產(chǎn)逐漸趨于舍飼化、規(guī)�；�,如何簡單易行、高效率地發(fā)揮綿羊繁殖潛力、批量生產(chǎn)商品羊已成為急需解決的重要課題。本實驗通過對比不同處理方法對多浪羊和巴音布魯克羊在春季、秋季同期發(fā)情和人工授精的效果,力求優(yōu)化一種操作簡單,且能在南疆農(nóng)村養(yǎng)羊中具有普遍推廣價值的方法,以期為南疆養(yǎng)羊業(yè)提供技術參考。實驗一,對比了CIDR+PG+PMSG、CIDR+PMSG、CIDR+PMSG+A3三種處理方法對秋季空懷多浪羊同期發(fā)情效果及人工受精后受胎率及產(chǎn)羔率的影響。結(jié)果顯示:CIDR+PG+PMSG處理后母羊的發(fā)情率、受胎率及產(chǎn)羔率分別為93.1%、96.3%和125.0%,均顯著高于CIDR+PMSG處理組母羊的發(fā)情率(80.4%)、受胎率(80.0%)及產(chǎn)羔率(94.4%),也均顯著高于CIDR+PMSG+A3處理組的發(fā)情率(78%)、受胎率(79.5%)及產(chǎn)羔率(93.5%),(P0.05)。CIDR+PMSG和CIDR+PMSG+A3處理組之間的發(fā)情率、受胎率及產(chǎn)羔率差異均不顯著。結(jié)果表明,在秋季使用CIDR+PG+PMSG法對多浪羊進行高頻繁育可以獲得理想的產(chǎn)羔效果。實驗二,使用CIDR+PMSG+PG處理方法在春季和秋季對巴音布魯克羊和多浪羊進行同期發(fā)情,分別比較秋季和春季同期發(fā)情對空懷巴音布魯克羊和多浪羊受胎率及產(chǎn)羔率的影響。試驗結(jié)果表明:在秋季使用CIDR+PG+PMSG方法處理后的巴音布魯克羊發(fā)情率93.1%,極顯著地高于春季使用相同方法處理的巴音布魯克羊的發(fā)情率,(P0.01);秋季該方法處理后母羊的受胎率及產(chǎn)羔率分別為89.4%和96.3%,均顯著高于春季處理母羊的受胎率(58.5%)及產(chǎn)羔率(94.5%),(P0.05)。在春季和秋季分別使用CIDR+PG+PMSG方法處理多浪羊,秋季母羊發(fā)情率95.1%與春季母羊發(fā)情率91.2%無顯著性差異;但秋季母羊受胎率及產(chǎn)羔率分別為88.2%和115.8%,均顯著高于春季處理母羊的受胎率(77.4%)及產(chǎn)羔率(105.6%),(P0.05)。將同一品種母羊春季、秋季的同期發(fā)情后人工授精受胎率及產(chǎn)羔率合并,對比兩個品種的受胎效率和產(chǎn)高效率。結(jié)果顯示,多浪羊在處理母羊受胎效率和產(chǎn)羔效率上均極顯著高于巴音布魯克羊,提示多浪羊更適合工廠化養(yǎng)殖,能給養(yǎng)殖者帶來更多的收益。
[Abstract]:As sheep production gradually tends to be reduced to a large scale, it is easy and efficient to develop the sheep's reproductive potential. Batch production of commercial sheep has become an important issue to be solved urgently. In this experiment, the effects of different treatment methods on estrus synchronization and artificial insemination of Dulang sheep and Bayinbrook sheep in spring and autumn were compared, in order to optimize a simple operation. And it can be widely popularized in rural sheep raising in southern Xinjiang, in order to provide technical reference for sheep raising in southern Xinjiang. Experiment 1, The effects of three treatments of CIDR PG PMSG, CMSG, cidr PMSG A3 on estrus synchronization, conception rate and lambing rate after artificial insemination were compared. The results showed that estrus rate of ewes treated with 10% cidr PG PMSG was higher than that of control group. The conception rate and lambing rate were 93.3% and 125.0%, respectively, which were significantly higher than those of estrus rate (80.4%, conception rate 80.04%) and lambing rate (94.4%) of CIDR PMSG treatment group, and significantly higher than that of CIDR PMSG A3 treatment group (78.78%, conception rate 79.5%), and the lambing rate 93.55.5. CIDR PMSG and CIDR PMSG A3 were also significantly higher than those of CIDR PMSG A3 treatment group (79.5%) and the lambing rate 93.55.5.CIDR PMSG and CIDR PMSG A3 were also significantly higher than those in CIDR PMSG A3 treatment group. Estrus rate between treatment groups, There was no significant difference in conception rate and lambing rate. The results showed that high frequency breeding with CIDR PG PMSG method in autumn could obtain ideal lambing effect. The CIDR PMSG PG method was used to synchronize estrus between Bayinbrook sheep and Dulang sheep in spring and autumn. The effects of estrus synchronization in autumn and spring on conception rate and lambing rate were compared. The results showed that the estrus rate of Bayinbrook sheep treated with CIDR PG PMSG method in autumn was 93. 1%. The estrus rate of Bayinbrook sheep treated with the same method in spring was higher than that of Bayinbrook sheep in spring, and the conception rate and lambing rate of ewe treated by this method in autumn were 89.4% and 96.3%, respectively, which were significantly higher than those of estrous sheep treated in spring (58.5%) and lambing rate (58.5%). In spring and autumn, the CIDR PG PMSG method was used to treat Dulang sheep. There was no significant difference between the estrus rate of estrus in autumn (95.1%) and that in spring (91.2%), but the conception rate and lambing rate of ewe in autumn were 88.2% and 115.8%, respectively, which were significantly higher than those of ewes treated in spring (77.4%) and lambing rate (105.6%). The combination of artificial insemination rate and lambing rate after estrus synchronization in autumn compared the efficiency of conception and productivity of the two breeds. The results showed that the efficiency of pregnancy and lambing of Dulang sheep was significantly higher than that of Bayinbrook sheep in the treatment of estrous estrus. It is suggested that Doulang sheep is more suitable for industrial breeding and can bring more benefits to farmers.
【學位授予單位】：新疆農(nóng)業(yè)大學
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：S826

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