EFFECT OF SEASONS AND BREED ON THE PERCENTAGE OF INFERTILITY AMONG COWS IN MEASAN
2006
A.AL-SODANY | ALI KHALAF
Throug a complete year a 1000 cows were subjected to asexual health examination two hundred and ten cases of affection with infertility problems were discovered in local Iraqi cows (Al-Jenubi) and their crosses with Fresian .It was found that 88 cows ( 41.9 %) as anestruse ,they were 28 cows (l3.33%) local cows and 60 cows (28.57%) crosses cows and .the percentage of anestrus did not affected by certain seasonal trend, and 49 cows (23.33%) were affected by repeat breeder,l7 cows (8.09%) of them were local cows and 32 cows (l5.23%) were crosses cows and the higher percentage of repeat breeders was in summer season. Uterine infection were 73 cows (34.76%) cases devided as 45 cows (2l.42%)local cows and 28cows (l3.33%) crosses cows and they were not affected by acertianseason with the exception of their highest incidence in winter. the results shows . that the percentage of cross cows higher than the percentage of local cows signilicantly(p< 0.0l). There is not significant correlation between seasons and affection cows with infertility .But the results shows that the local breed is more resistant to infertility problems than cross breed.
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