In this experiment，author applied the postnatal colostrums of 1 hour ,24 hour and tris～hormone to induce the estrus or breeding for the postnatal high～yield dairy cattle。The postnatal high～yield dairy cattle was treated by the postnatal colostrums of 1 hour and 24 hour，the heating rate was 90.00% and 35% respectively. And after breeding，the conception rate separately was 38.75% and 41.67%. This results showed that the postnatal high～yield dairy cattle was treated by the postnatal colostrums of 1 hour , the heating rate was higher than that of colostrums of 24 hour (P<0.05). The difference was not remarkable (P>0.05) between the postnatal colostrums of 1 hour and 24 hour for the conception rate. To the heating rate and conception rate, the effects of the postnatal colostrums of 1 hour was same as that of the tris～hormone(P>0.05).
Li Qingwang, Hu Jianhong, Jiang Zhongliang, Wang Liqiang, Zhang Peijing, Zan Linsen
. The Primitive Study of Inducing Postnatal Dairy Cattle’s Heating and Breeding by Colostrum[J]. Chinese Agricultural Science Bulletin, 2004
, 20(5)
: 1
-1
.
DOI: 10.11924/j.issn.1000-6850.040501
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