Estrus synchronization schemes and application efficacies in anestrus lanzhou fat-tailed ewes

Synchronization of ewes during anestrus: influence of time of year and interval to onset of estrus on conception rate.

The effects of progestogen-gonadotropin treatment on estrous response, ovulation rate and lambing response of crossbred ewes were examined at two times during the anestrous season (May-June and July-August). Each ewe group was treated with progestogen pessaries for 16 days and injected with 750 IU pregnant mare serum gonadotropin (PMSG) on days 17 and 32 to induce two consecutive estrous period...

Meat from culled old ewes or fat-tailed iranian breeds I.feedlotperformance and some carcass traits

Outbreak of primary pregnancy toxemia in fat tailed ewes due to ultrasonographic misdiagnosis of pregnancy

Four fat-tailed ewes from an indoor flock (n=40) were examined for recumbency and depressive nervoussigns. They were from a seemingly nonpregnant group of the flock that had been diagnosed bytransabdominal ultrasonography. The ration consisted of mainly wheat straw since their separation from thepregnant group. Detection of pregnancy on abdominal palpation along with depressive nervous signs an...

Comparative analysis of the liver tissue transcriptomes of Mongolian and Lanzhou fat-tailed sheep.

Research on gene regulation has been made possible with the help of RNA sequencing applications such as RNA-Seq technology for high-throughput sequencing platforms. Recent studies have explored the transcriptomes from different tissues of domestic animals using RNA-Seq technology, but little research has been done to study the transcriptomes of breeds of sheep having different adipose tissue de...

Estrus synchronization in ewes treated with sponges impregnated with different doses of medroxyprogesterone acetate.

The objectives of this study were to determine residual and absorbed levels of medroxyprogesterone acetate (MAP) after treatment with intravaginal sponges impregnated with different doses of MAP in an ewe herd and to determine the effects of such treatments upon estrus incidence, interval to estrus onset and pregnancy rate. Polyurethane sponges impregnated with 40, 50 and 60mg of MAP were prepa...