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Relationship of scrotal circumference to age, body weight and onset of spermatogenesis in goats


Citation

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

Abstract / Synopsis

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.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Veterinary Medicine
DOI Number: https://doi.org/10.1016/0093-691X(82)90184-4
Publisher: Elsevier
Keywords: Scrotal circumference; Body weight; Spermatogenesis; Goats
Depositing User: Nabilah Mustapa
Date Deposited: 18 Sep 2015 07:48
Last Modified: 18 Sep 2015 07:48
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/0093-691X(82)90184-4
URI: http://psasir.upm.edu.my/id/eprint/40379
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