In polygynous (multiple queens per nest) colonies of social insects, queens can increase their reproductive share by laying more eggs or by increasing the proportion of eggs that develop into reproductive individuals instead of workers. We used polymorphic microsatellite loci to determine the genetically effective contribution of queens to the production of gynes (new queens), males, and 2 diff...

The objective of this study was to identify risk factors for repeat breeder dairy cows and their impact on reproductive performance. characteristics 1,504 cows, including peripartum health, nutrition, production, reproduction, were collected. Cows with metabolic disorder significantly more likely (odds ratio [OR], 2.47; p < 0.001) clinical endometritis tended be (OR, 1.35; 0.1) become breede...

Abstract Repeat breeder is a problem faced by cattle farmers in Indonesia. The highest reproductive disease commonly occurring repeat conditions reaching up to 32.76%. Limited feed cause cows have low Body Condition Score (BCS) so that the energy utilization process body not optimal and there decrease BCS which causes disturbances performance. If mineral deficiency body, metabolic will be disru...

Among the diverse factors, bacterial infections in reproductive tract potentially cause of repeat breeding dairy cows. The present research was conducted to appraise uterine organism healthy fertile cows (HFC) and breeder (RBC) establish a relationship with previous disease or conditions. A total 43 samples were collected from 10 33 RB for bacteriological study. RBC, 39.4% harbored isolates E. ...