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Title of Journal: Trop Anim Health Prod

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Abbravation: Tropical Animal Health and Production

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Springer Netherlands

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DOI

10.1016/0040-4039(96)00316-4

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1573-7438

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Divergent development of testosterone secretion in

Authors: S Gulia M Sarkar Vijay Kumar H H D Meyer B S Prakash
Publish Date: 2010/03/06
Volume: 42, Issue: 6, Pages: 1143-1148
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Abstract

Delayed pubertal development and low fertility of Bos indicus x Bos taurus crossbred male cattle and domestic buffaloes is hardly understood hence a sensitive enzymeimmunoassay EIA was developed using the second antibodycoating technique and testosterone3Ocarboxymethyloximehorseradish peroxidase conjugate as a label for determination of testosterone in blood plasma The EIA was validated by standard criteria Blood samples were collected by venipuncture from growing male cattle Karan Fries and Sahiwal and buffalo Murrah and testosterone was estimated using the EIA procedure Plasma testosterone concentrations increased significantly P  005 with advancing age Testosterone concentrations were significantly P  001 higher in Sahiwal males in comparison to Karan Fries males The low testosterone levels in crossbred than Sahiwal could imply that crossbred males have either not stabilized genetically or not adapted well in Indian climatic conditions resulting in poor libido and poor semen quality The low testosterone levels in Murrah buffalo males may be the possible reason for delayed maturity in this species The direct sensitive EIA validated for estimating the plasma testosterone concentration was reliable for studying the testosterone profile in blood plasma of males The results suggest that there could be a requirement for higher testosterone secretion by males during early stages of growth for attaining early sexual maturity

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