Examination of droughtmaster bulls for breeding soundness
Forty Droughtmaster bulls were evaluated for breeding soundness, using the method of examination and criteria for classifying bulls of the Society for Theriogenelogy. Eighty three percent of the bulls were classified as satisfactory, 14 percent as questionable and 3 percent as unsatisfactory breeder...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
1981
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| Online Access: | http://psasir.upm.edu.my/id/eprint/39098/ http://psasir.upm.edu.my/id/eprint/39098/1/Exam%20of%20droughtmaster%20bulls.pdf |
| _version_ | 1848849052977856512 |
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| author | Bongso, T. A. Jainudeen, Mohamed Razeen Dass, S |
| author_facet | Bongso, T. A. Jainudeen, Mohamed Razeen Dass, S |
| author_sort | Bongso, T. A. |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Forty Droughtmaster bulls were evaluated for breeding soundness, using the method of examination and criteria for classifying bulls of the Society for Theriogenelogy. Eighty three percent of the bulls were classified as satisfactory, 14 percent as questionable and 3 percent as unsatisfactory breeders. Scrotal circumference for 2 to 8-year-old bulls were smaller in questionable and unsatisfactory bulls, as compared to satisfactory bulls. For bulls rated as satisfactory breeders, the scrotal circumference of 37 to 43 cms was higher than for other beef breeds. Three related bulls (2 questionable, 1 satisfactory) carried sperm defects classified as 'knobbed' (38 +/- 3%), 'Dag' (40 +/- 4%) and 'pseudo-droplets' (41 +/- 5%), which may adversely affect fertility. |
| first_indexed | 2025-11-15T09:44:16Z |
| format | Article |
| id | upm-39098 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:44:16Z |
| publishDate | 1981 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-390982015-07-07T07:02:07Z http://psasir.upm.edu.my/id/eprint/39098/ Examination of droughtmaster bulls for breeding soundness Bongso, T. A. Jainudeen, Mohamed Razeen Dass, S Forty Droughtmaster bulls were evaluated for breeding soundness, using the method of examination and criteria for classifying bulls of the Society for Theriogenelogy. Eighty three percent of the bulls were classified as satisfactory, 14 percent as questionable and 3 percent as unsatisfactory breeders. Scrotal circumference for 2 to 8-year-old bulls were smaller in questionable and unsatisfactory bulls, as compared to satisfactory bulls. For bulls rated as satisfactory breeders, the scrotal circumference of 37 to 43 cms was higher than for other beef breeds. Three related bulls (2 questionable, 1 satisfactory) carried sperm defects classified as 'knobbed' (38 +/- 3%), 'Dag' (40 +/- 4%) and 'pseudo-droplets' (41 +/- 5%), which may adversely affect fertility. Elsevier 1981-04 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/39098/1/Exam%20of%20droughtmaster%20bulls.pdf Bongso, T. A. and Jainudeen, Mohamed Razeen and Dass, S (1981) Examination of droughtmaster bulls for breeding soundness. Theriogenology, 15 (4). pp. 415-425. ISSN 0093-691X 10.1016/0093-691X(81)90008-X |
| spellingShingle | Bongso, T. A. Jainudeen, Mohamed Razeen Dass, S Examination of droughtmaster bulls for breeding soundness |
| title | Examination of droughtmaster bulls for breeding soundness |
| title_full | Examination of droughtmaster bulls for breeding soundness |
| title_fullStr | Examination of droughtmaster bulls for breeding soundness |
| title_full_unstemmed | Examination of droughtmaster bulls for breeding soundness |
| title_short | Examination of droughtmaster bulls for breeding soundness |
| title_sort | examination of droughtmaster bulls for breeding soundness |
| url | http://psasir.upm.edu.my/id/eprint/39098/ http://psasir.upm.edu.my/id/eprint/39098/ http://psasir.upm.edu.my/id/eprint/39098/1/Exam%20of%20droughtmaster%20bulls.pdf |