Impact of bypass fat and mineral supplementation peripartum on plasma profile of steroid hormones, PGFM and postpartum fertility in Jaffarabadi buffaloes Vala K.B., Dhami A.J.*, Kavani F.S., Parmar S.C., Raval R.J., Sarvaiya N.P., Gajbhiye P.U. Department of Veterinary Gynaecology and Obstetrics, College of Veterinary Science and Animal Husbandry, Junagadh Agricultural University, Junagadh-362 001, Gujarat, India *Corresponding author's e-mail & address: ajdhami@aau.in
Online published on 30 August, 2019. Abstract Advanced pregnant Jaffarabadi buffaloes (n=40) of 2–4 parity selected on an organized farm were divided equally into control (routinefarm feeding-RFF)and treatment/nutrients supplementation (RFF +bypass fat@ 150–200 g/h/d andASMM @ 50 g/h/d) groups and were studied from 6 wks prepartum to 8 wks postpartum for plasma profile of steroid hormones and PGF2α; metabolites on days-45, -30, -7, 0, +7, +15, +30, +45 and +60 peripartum as well as for puerperal events and postpartum fertility. Half of the buffaloes in both the groups also received parenteral microminerals (Inj. Stimvet 5 ml i/m) twice, 45 days before and on the day of calving. Again half of them were treated with ecbolic (Exapar) 2 boli bid for first 4 days postpartum. The mean plasma progesterone values were maximum (>4 ng/ml) on day 45 prepartum, which declined significantly (p<0.01) on day 7 prepartum reached to the basal levels (<1 ng/ml) on the day of calving, remained basal till day 15, and thereafter showed a rising trend on days 30, 45 and 60 postpartum. The oestradiol-17β values were at its peak on the day of calving (p<0.01), showed a rapid fall by day 7 postpartum and remained low till recrudesce of follicular activity around day 45 and 60 postpartum. The levels of cortisol were significantly higher on the day of parturition as compared to values on day 7 pre-and post-partum. The plasma concentration of PGFM was low on day 45 prepartum, which increased gradually and significantly by almost 10-folds to reach peak values on the day of calving in both control and treatment groups and then declined gradually and significantly till day 45 postpartum. The rise was little more in nutrients supplemented group with higher mean values at most intervals peripartum than in control group. The periods for uterine involution, first postpartum estrus and days open were significantly shorter with higher conceptionrate in nutrient supplemented group. It is concluded that the peripartum nutrient supplementation in Jaffarabadi buffaloes is beneficial and has positive effect on the postpartum fertility and plasma progesterone and PGFM profile. Top Keywords Jaffarabadi buffalo, Nutrient supplementation, PGFM, Postpartum fertility, Steroid hormones profile, Transitional period. Top |