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Effect of lameness (hoof disorders) on productivity of Karan Fries crossbred cows
Author(s) -
SINGH Yajuvendra,
LATHWAL Surender Singh,
CHAKRAVARTY Atish Kumar,
GUPTA Ashok Kumar,
MOHANTY Tushar Kumar,
RAJA Thiruvothur Venkatesan,
DANGI Roshan Lal,
ROY Biplob Kumer
Publication year - 2011
Publication title -
animal science journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.606
H-Index - 38
eISSN - 1740-0929
pISSN - 1344-3941
DOI - 10.1111/j.1740-0929.2010.00800.x
Subject(s) - lameness , ice calving , lactation , zoology , medicine , crossbreed , significant difference , veterinary medicine , biology , pregnancy , surgery , genetics
ABSTRACT In present study production performance of 96 lame cows was compared with 67 healthy cows. No significant effect of parity and year of calving on milk yield were observed but the effect of season of calving was significant ( P < 0.01). Effect of lameness on milk yield at the second, third and fourth months and 305 days was highly significant ( P < 0.01), and was also significant ( P < 0.05) on lactation yield of the fifth and tenth months. The effect of lameness on monthly and 305‐day milk yield was significant ( P < 0.01) only for those cows diagnosed lame before calving and during the first month of lactation. The differences in mean monthly yield were highly significant ( P < 0.01) at the second, third and fourth months; and significant ( P < 0.05) in the first and fifth months. The loss in the first lactation month of cows which were diagnosed as lame in the second month, was found to be significant ( P < 0.05). Thus the yield of the month previous to the diagnosis (sub‐clinical stage) was also affected. A significant ( P < 0.01) total loss of 498.95 kg of milk yield was observed during a period of 305 days.