Large Percentage Of “Empty” Cows Fertile
That a high proportion of cows culled for infertility each season are likely to be fertile at the time of culling is evident from results of artificial insemination of 41 “sterile” cows, 56 per cent of which conceived, states the annual report of the Department of Agriculture. Whatever trouble has existed to prevent conception during the normal spring breeding season has passed off and left the cows’ breeding potential quite normal. The inescapable conclusion is that a large percentage of the temporary sterility of dairy cattle is of economic importance, mainly because of the seasonal mating system in the industry. The problem would create less interest among farmers if calving were spread more evenly throughout the year, but this is impracticable under grassland dairy farming conditions.
As a result of the success of penicillin treatment fewer cows were culled during the past season for mastitis.
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Bibliographic details
Bay of Plenty Beacon, Volume 15, Issue 78, 4 August 1950, Page 4
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151Large Percentage Of “Empty” Cows Fertile Bay of Plenty Beacon, Volume 15, Issue 78, 4 August 1950, Page 4
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