Abstract

EMPLOYING THE EFFECT OF GENTAMYCIN AND ENROFLOXACIN TREATMENT ON PREGNANCY RATE OF REPEAT BREEDER DAIRY CROSS BRED COWS

Ngangkham James Singh*, Ajit singh and Anil Kumar Patel

Abstract

The experiment was to investigate the effect of gentamycin and enrofloxacin treatment on pregnancy rate in repeat breeder dairy crossbred cows. Based upon culture and sensitivity test, cows were assigned into two groups. Genta (n = 8) cows were treated with gentamycin (100 mg/ml) and ENRO (n = 10) cows were treated with enrofloxacin (100 mg/ml) intramuscularly 4 ml/100 kg body weight and intra-uterine 2-8 ml diluted with 20 ml of physiological salt solution with 24 hours interval for seven days in both groups (four infusions per animal on every other day basis). Control (n = 12) cows were untreated control (non-repeat breeder). After treatment, cows were inseminated approximately 12 h after the standing heat. Pregnancy diagnosis was performed by per rectal examination between days 80 and 90 post insemination. The overall pregnancy rates after three services among three groups were significantly different (P0.05) from Control cows (91.7%). However, overall pregnancy rates of Enro cows (50%) were significantly lower (P

Keywords: Repeat breeder, enrofloxacin, crossbred cows, gentamycin, and pregnancy rate.