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Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/26168
Title: | Effect of season and age on scrotal circumference, testicular parameters and endocrinological profiles in mithun bulls |
Other Titles: | Not Available |
Authors: | P. Perumal , N. Savino , C.T.R. Sangma , S. Chang , T.Z.T. Sangtam , M.H. Khan , G. Singh , Brijesh Kumar , D. Yadav , N. Srivastava |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR::National Research Centre on Mithun |
Published/ Complete Date: | 2017-08-01 |
Project Code: | Not Available |
Keywords: | mithun |
Publisher: | Not Available |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | Mithun is a domesticated free-range bovine species primarily used as a meat animal and is a pride of North Eastern Hilly regions of India. The present study was conducted to measure the effect of seasons on scrotal & testicular biometrics and endocrinological profiles for different age groups at different seasons in mithun bulls. A total of 30 mithun males were selected from the mithun breeding farm, ICAR-NRC on Mithun, Medziphema, Nagaland, India and were equally groups were Gr A (0.1–1.0 year), Gr B (1.1–2.0 years), Gr C (2.1–3.0 years), Gr D (3.1–5.0 years) and Gr E (5.1–6.0 years). The seasons were grouped into winter, spring, summer and autumn based on the meteorological data such as temperature humidity index (THI) and sunshine hours. Scrotal circumference (SC) & testicular biometrics and endocrinological profiles such as follicle stimulating hormone (FSH), luteinizing hormone/interstitial cell stimulating hormone (LH/ICSH), testosterone, thyroxine (T4), cortisol and insulin like growth factor 1 (IGF 1) were estimated during different seasons for different age groups. Statistical results revealed that the SC & testicular biometrics and endocrinological profiles differed significantly (p < 0.05) among the different age groups for the same season whereas SC and endocrinological profiles significantly (p < 0.05) differed among the seasons for same age group. Significantly (p < 0.05) greater SC and testicular weight were observed in Gr E and D, lower in Gr A and B and intermediate in Gr C and increased as age advances. Significantly (p < 0.05) greater SC was observed in winter and spring and lowest was in summer season. The hormone profiles such as FSH, LH/ICSH, testosterone & thyroxine were significantly (p < 0.05) greater and IGF-1 & cortisol were significantly (p < 0.05) lower in spring & winter than in summer season. The hormones, FSH, LH/ICSH and thyroxine increased significantly in Gr A followed by reduced in Gr B and then increased to Gr D and E, whereas concentration of testosterone, cortisol and IGF-1 increased according to age advanced. It was concluded that the spring and winter seasons has significantly greater beneficial effects than summer season on reproduction and artificial breeding programme in semi-intensive management of mithun in the present location. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Research Paper |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Not Available |
Volume No.: | Not Available |
Page Number: | Not Available |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | https://doi.org/10.1016/j.theriogenology.2017.04.049 |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/26168 |
Appears in Collections: | AS-NRCM-Publication |
Files in This Item:
File | Description | Size | Format | |
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Perumal-04.pdf | 409.39 kB | Adobe PDF | View/Open |
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