Effect of Antibiotic and Hormone Therapy on Micro-minerals Concentration and Fertility in Postpartum Holstein Friesian Cows Mishra G.K.*, Derashri H.J., Parnerkar S., Patel J.A., Belsare V.P., Kavani F.S. Department of Animal Reproduction, Gynaecology and Obstetrics College of Veterinary Science and Animal Husbandry Anand Agricultural University, Anand – 388 001 *Email id: drkodu@rediffmail.com
Online published on 11 January, 2012. Abstract The study was carried out on 24 postpartum HF cows (18 in treatment and 6 in the control group). A bolus containing oxytetracycline – 2.0 g (Uroblex, Pfizer India Limited) was introduced intrauterine on the second day after expulsion of the placenta in the treatment group and was subgrouped as A, B and C, each of six animals. They were then treated on the 50th day postpartum with GnRH alone + AI, GnRH + Bioheat bolus + AI, and GnRH + non-surgical ET. The pooled mean levels of plasma manganese, cobalt, copper, iron and zinc on 50th day postpartum were 0.24 ± 0.01, 0.96 ± 0.10, 0.84 ± 0.03, 15.99 ± 0.71 and 28.45 ± 2.62 ppm, respectively. Highly significant difference (P<0.01) was observed between groups only for plasma manganese concentration (ppm); being lower in the control group (0.17 ± 0.01) as compared to the mean of the treatment groups (0.27 ± 0.01), but not between subgroups. Percentage of animals conceived in control and treatment groups were 33.33, 83.33, 100.00 and 50.00, respectively. The pooled conception rate of all treatment groups [77.78%] was higher than the control group [33.33%]. Service period in the treatment group of animals was less as compared to the control group (71.5 ± 4.83 vs 144.83 ± 3.39 days). Top Keywords HF cows, Antibiotic, GnRH, Micro-minerals concentration, Postpartum fertility. Top |