National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The research work was conducted to know the relationship of udder and teat morphological characteristics with total lactation yield of crossbred cows. A total of seventy five Jersey crossbred cows with different parities were randomly selected from organised and private dairy farms of Tirunelveli, Thoothukudi and Tenkasi districts of Tamil Nadu. Udder length (UL), udder width (UW), udder depth (UD), fore teat length (FTL), rear teat length (RTL), fore teat diameter (FTD) and rear teat diameter (RTD) were measured at the beginning of lactation. The total milk yield (TMY) measured throughout the lactation period. Udder length, width and depth among different parities differed significantly (P<0.01). The length of fore teat and rear teat were significantly differ between different parities (P<0.01) but the diameter of teats were not differ significantly. Gradual increases of udder and teat measurements have been observed upto fifth parity. The total milk yield of Jersey crossbred cows significantly correlated with udder depth (0.442) and non-significantly correlated with udder length (0.201) and udder width (0.121).
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