Effect of mineral ~upplementon oestrus induction and conception In anoestrus crossbred heifers
Supplementation of 30-40 g commercial mineral mixture in concentrate for 20 days induced ovulatory oestrus in 93.33% (28/30) anoestrus crossbred heifers. Out of28 heifers inseminated, 25 (89.28%) conceived with 1 to 5 inseminations. First AI conception rate was 32.14%. Maximum conception rate (52.16%) was observed in second AI. This indicates that in growing heifers true anoestrus occurs mostly due to imbalanced ration, deficient in various minerals, which may be corrected by supplementing mineral mixtures in the feed.
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