Major Infertility Problems of Crossbred Dairy Cattle in Debre Berhan Milk Shed Areas
<p id="p1">The present study was conducted to determine the occurrences and features of repeat breeding and postpartum anestrous in crossbred dairy cattle. A longitudinal prospective study was carried out on 371 pregnant dairy cows to determine the occurrences of repeat breeding and postpartum anest...
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| Autores principales: | , , , |
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| Formato: | Capítulo de libro |
| Lenguaje: | inglés |
| Publicado: |
IntechOpen
2024
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| Materias: | |
| Acceso en línea: | https://www.intechopen.com/chapters/1196549 |
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| Sumario: | <p id="p1">The present study was conducted to determine the occurrences and features of repeat breeding and postpartum anestrous in crossbred dairy cattle. A longitudinal prospective study was carried out on 371 pregnant dairy cows to determine the occurrences of repeat breeding and postpartum anestrus. Ultrasonographic examination was undertaken on repeat breeder and postpartum anestrus cows to identify the features of repeat breeding and postpartum anestrus in crossbred dairy cows. The incidence of postpartum anestrous and repeat breeding in crossbred dairy cattle was high at 40.9 and 38.2%, respectively. From cows or heifers recorded as repeat breeders, 59.2% of cows and heifers had regular estrous cycle and functional corpus luteum, while the remaining 40.8% of dairy cows had no regular estrous cycle and functional corpus luteum in ultrasonographic examination of utero-ovarian conditions. From the cows recorded as postpartum anestrus, 34.7% of cows were true anestrus, 54.7% of cows were subestrus, and the remaining 10.5% of cows were with cystic ovary. The present study indicated that 22.6% of total dairy cows examined under the present study could not conceive within 1 year of postpartum due to repeat breeding syndrome. Moreover, 40.8% of repeat breeder dairy cows were conceived after a repeated number of services within 1 year of postpartum.</p> |
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| ISBN: | 978-0-85014-894-7 |
| DOI: | 10.5772/intechopen.1006909 |