In this study, the chilled semen was used to increase the successful of artificial insemination. The purpose of this study was to evaluate the successful of artificial insemination by using chilled semen on Brahman Cross cows. In this study the semen was diluted with two kinds of extender were...
In this study, the chilled semen was used to increase the successful of artificial insemination. The purpose of this study was to evaluate the successful of artificial insemination by using chilled semen on Brahman Cross cows. In this study the semen was diluted with two kinds of extender were...
The present study was conducted to investigate the influence of GnRH (Gonadotropin Releasing Hormone) administration on conception rate at the time of artificial insemination (AI) in healthy crossbred dairy cows. A total 90 cows were recruited and a preset questionnaire was answered by the owners. ...
Artificial inseminationoestrus detectionnon-return ratedairy cowAIMS: To determine the difference in reproductive performance between cows detected in oestrus during morning or afternoon milking when artificial insemination (AI) was carried out once daily, either after the morning or afternoon milking....
All controls that were not detected in estrus were injected with 25 mg of PGF2α at 14-d intervals until artificial insemination (AI) at a detected estrus or until timed AI at 72 to 80 h after a third sequential injection of PGF2α. Treated cows and heifers received a protocol that ...
Artificial insemination of superovulated Angus cows using sexed or conventionally frozen semen 喜欢 0 阅读量: 5 作者: Lamb,GC,Lovaas,BJ,Bird,SL,Martins,A,Larson,JE,Rodgers,JC,Frank,DJ,Williams,DM 关键词:superovulation sexed semen artificial insemination ...
Conception rates in 535 commercial lactating Friesian dairy cows on two farms were compared between treated animals after two injections of dinoprost at an 11-day interval, and untreated contemporary controls bred by conventional artificial insemination. The conception rate for a single insemination 75 ...
Pregnancy rate after fixed-time artificial insemination of suckled beef cows subjected to a cosynch protocol with either buserelin or hCG as ovulation inducing agentThe aim of this project was to examine the reliability of a PAG polyclonal ELISA developed by Friedrich and Holtz (2010) in goats,...
中国奶牛·圆园10年第7期·科技使一群奶牛在同一时期内发情并排卵的技术袁称为同期发情渊synchronizationofestrus冤袁也叫发情同期化渊estrussynchronization冤遥..
The aim of this research was to compare two artificial insemination protocols (AIP): hormonal synchronization with fixed time artificial insemination (SC-FTAI) and the use of a table based on visual observation of estrus signs (VO) in order to identify cows in natural or spontaneous estrus bein...