Relationship of scrotal circumference to age, body weight and onset of spermatogenesis in goats
Scrotal circumference (SC) and body weight (BW) measurements were obtained from 122 crossbred (Saanen × Loca; Jumnapari × Local) bucks, ranging in age from 3 to 28 months. Spermatogenesis and semeniferous tubule diameters were studied from testicular biopsies in 24 bucks. The results showed that SC...
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| Format: | Article |
| Language: | English English |
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Elsevier
1982
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| Online Access: | http://psasir.upm.edu.my/id/eprint/40379/1/Relationship%20of%20scrotal%20circumference%20to%20age%2C%20body%20weight%20and%20onset%20of%20spermatogenesis%20in%20goats.pdf http://psasir.upm.edu.my/id/eprint/40379/7/1-s2.0-0093691X82901844-main.pdf |
| _version_ | 1825949590632792064 |
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| author | Bongso, Tuan Ariffeen Jainudeen, Mohamed Razeen Abdullah, Siti Zahrah |
| author_facet | Bongso, Tuan Ariffeen Jainudeen, Mohamed Razeen Abdullah, Siti Zahrah |
| author_sort | Bongso, Tuan Ariffeen |
| collection | UPM |
| description | Scrotal circumference (SC) and body weight (BW) measurements were obtained from 122 crossbred (Saanen × Loca; Jumnapari × Local) bucks, ranging in age from 3 to 28 months. Spermatogenesis and semeniferous tubule diameters were studied from testicular biopsies in 24 bucks. The results showed that SC increased curvilinearly and was significantly correlated with age (P < 0.05). Scrotal circumference correlated more significantly with BW (P < 0.001). Spermatogenesis was completed at 6–7 months with a sudden increase in tubular diameter at the same time. Since SC is an indirect measurement of testicular size, a marked increase in testicular size indicated the onset of active spermatogenesis and, hence, the possibility of using bucks for breeding at an earlier age than normally recommended. Further, SC norms obtained in this study may become useful in the evaluation of bucks for breeding soundness. |
| first_indexed | 2024-03-06T08:46:54Z |
| format | Article |
| id | upm.eprints-40379 |
| institution | Universiti Putra Malaysia |
| language | English English |
| last_indexed | 2024-09-25T03:34:21Z |
| publishDate | 1982 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-403792024-08-05T02:24:31Z http://psasir.upm.edu.my/id/eprint/40379/ Relationship of scrotal circumference to age, body weight and onset of spermatogenesis in goats Bongso, Tuan Ariffeen Jainudeen, Mohamed Razeen Abdullah, Siti Zahrah Scrotal circumference (SC) and body weight (BW) measurements were obtained from 122 crossbred (Saanen × Loca; Jumnapari × Local) bucks, ranging in age from 3 to 28 months. Spermatogenesis and semeniferous tubule diameters were studied from testicular biopsies in 24 bucks. The results showed that SC increased curvilinearly and was significantly correlated with age (P < 0.05). Scrotal circumference correlated more significantly with BW (P < 0.001). Spermatogenesis was completed at 6–7 months with a sudden increase in tubular diameter at the same time. Since SC is an indirect measurement of testicular size, a marked increase in testicular size indicated the onset of active spermatogenesis and, hence, the possibility of using bucks for breeding at an earlier age than normally recommended. Further, SC norms obtained in this study may become useful in the evaluation of bucks for breeding soundness. Elsevier 1982-11 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/40379/1/Relationship%20of%20scrotal%20circumference%20to%20age%2C%20body%20weight%20and%20onset%20of%20spermatogenesis%20in%20goats.pdf text en http://psasir.upm.edu.my/id/eprint/40379/7/1-s2.0-0093691X82901844-main.pdf Bongso, Tuan Ariffeen and Jainudeen, Mohamed Razeen and Abdullah, Siti Zahrah (1982) Relationship of scrotal circumference to age, body weight and onset of spermatogenesis in goats. Theriogenology, 18 (5). pp. 513-524. ISSN 0093-691X; ESSN: 1879-3231 http://www.sciencedirect.com/science/article/pii/0093691X82901844 10.1016/0093-691X(82)90184-4 |
| spellingShingle | Bongso, Tuan Ariffeen Jainudeen, Mohamed Razeen Abdullah, Siti Zahrah Relationship of scrotal circumference to age, body weight and onset of spermatogenesis in goats |
| title | Relationship of scrotal circumference to age, body weight and onset of spermatogenesis in goats |
| title_full | Relationship of scrotal circumference to age, body weight and onset of spermatogenesis in goats |
| title_fullStr | Relationship of scrotal circumference to age, body weight and onset of spermatogenesis in goats |
| title_full_unstemmed | Relationship of scrotal circumference to age, body weight and onset of spermatogenesis in goats |
| title_short | Relationship of scrotal circumference to age, body weight and onset of spermatogenesis in goats |
| title_sort | relationship of scrotal circumference to age body weight and onset of spermatogenesis in goats |
| url | http://psasir.upm.edu.my/id/eprint/40379/1/Relationship%20of%20scrotal%20circumference%20to%20age%2C%20body%20weight%20and%20onset%20of%20spermatogenesis%20in%20goats.pdf http://psasir.upm.edu.my/id/eprint/40379/7/1-s2.0-0093691X82901844-main.pdf |
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