DefinePK

Abstract

There was no report yet on the effective methods of estrus synchronization in Aceh cattle. The aim of this study was to determine percentage and intensity of estrus, pregnancy, relationship between intensity of estrus and percentage of pregnancy resulted from artificial insemination artificial insemination in Indonesian aceh cattle induced by two estrus synchronization methods. Group I (K1, n=5), were synchronized with double injection using prostaglandin (PGF2?) 5 ml intramuscularly with interval 10 days, whereas Group II (K2, n=5) synchronized using CIDR-B inserted into vagina during 7 days and followed by injection of PGF2? 5 ml intramuscularly on day 6. The cattle were inseminated 12 hours after the signs of estrus appearance using frozen semen fertile. Intensity of estrus was performed using score in a scale 0 to 5. Percentage of estrus, intensity of estrus, and pregnancy percentage of cattle in K1 vs K2 respectively 80.0 vs 80.0%; 4.2±0.84 vs 4.4±0.90, dan 100.0 vs 100.0%. The relationship between the intensity of estrus and conception rates show significant correlation with coefficient correlation 0.832.