Influence of environmental temperature on sexual performance of Lori-Bakhtiari rams | ||
| علوم و فنون دامپروری | ||
| Volume 9, Issue 37, March 2021, Pages 3-8 PDF (813.7 K) | ||
| DOI: 10.22092/aasrj.2021.103465.1020 | ||
| Author | ||
| MOHSEN BAGHERI* | ||
| chaharmahal and bakhtiari agricultural and natural resources researches and education | ||
| Abstract | ||
| High temperature can affect reproduction, and the response may vary depending on the environment, breed, and from animal to animal in a herd. Therefore, in this study, the sexual behavior of Lori-Bakhtiari rams under shady and sunny environments during the natural matting season was evaluated. Six healthy rams were selected. Each ram was individually exposed to a restrained, ovariectomized ewe once a day, three times in three-day intervals, each time for ten minutes. Sexual behaviors were recorded from the outside of the pens. At each experiment, three rams were tested in the shade and three in the sun. The rectal temperature (RT) of rams was measured immediately before and after the tests. The number of attempted mounts, mounts without ejaculation, mounts with ejaculation, and time to the first ejaculation was recorded. The number of attempted mounts, mounts without ejaculation, and mounts with ejaculation were similar between the sun and shade environment. The change in RT of rams was significantly different between sun and shade environments. The results show that the sexual behavior of Lori-Bakhtiari rams was not affected by shade and sun environment. | ||
| Keywords | ||
| Lori-Bakhtiari rams; Fat-tail; Sexual behavior; efficiency; Environmental temperature | ||
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