Effect of Various Ovulation Synchronization Protocols on Estrus Response, Conception Rate and Blood Biochemical Profile in Anoestrus Buffaloes

Abstract

This study evaluated the fertility response and plasma profile of biochemical and mineral constituents in 46 postpartum anoestrus (>90 days) buffaloes treated under field conditions with TriU-B/PRID, Ovsynch and Heatsynch protocols (n=12 each), keeping untreated anoestrus control (n=10) and normal cyclic control (n=10) groups. The estrus induction response with 3 treatment protocols was 83.33, 83.33 and 91.66 % respectively within 2-3 days of PGF 2 α injection. The conception rates (CRs) obtained at induced estrus in buffaloes under TriU-B, Ovsynch and Heatsynch protocols were 25.00, 33.33 and 25.00 %, and those of overall three cycles' 50.00, 58.33 and 50.00 %, respectively, which were at par with normal cyclic control group (CR at first cycle 30.00 & overall of 3 cycles 50.00 %). Among untreated anoestrus control group, only two buffaloes (20%) exhibited estrus and conceived over 90 days follow up. The overall pooled mean plasma total cholesterol concentrations (mg/dl) in anoestrus buffaloes under TriU-B and in normal cyclic control group were the same (166.70±5.28 and 165.18±6.37) and significantly (P<0.01) higher than in Ovsynch (131.54±3.71) and lower than in Heatsynch (186.14±5.69) group. The value for total protein (g/dl) was significantly (P<0.05) lower in TriU-B (7.27±0.08) followed by other two groups (7.62±0.07 & 7.44±0.07) and highest in normal control group (7.98±0.10). The calcium was significantly higher (P<0.05) in Ovsynch (10.41±0.07 mg/dl) than other 3 groups (8.82±0.11 to 9.09±0.09 mg/dl), while inorganic phosphorus (3.99±0.10 to 4.29±0.13 mg/dl) did not vary between groups. Normal cyclic control buffaloes had significantly higher protein and lower calcium levels than in most treatment groups. The conceived buffaloes had apparently higher values of total cholesterol and protein as compared to non-conceived ones in all groups. In general, Ovsynch protocol was the best followed by TriU-B and Heatsynch for induction of estrus and improvement of fertility in anoestrus buffaloes.

Blood Plasma Biochemical Changes and Conception Rate in Anoestrus Buffaloes Treated with Various Hormone Protocols

“…In Heatsynch protocol total 90 per cent (9/10) buffalo heifer showed estrus symptoms at the time of insemination. Similar result was recorded by Buhecha et al [16] in anestrues buffaloes.…”

“…However, 100 per cent estrus was recorded following heatsynch protocol in buffalo by Ali et al [17] and Mohan et al [18] In Ovsynch protocol total 80 per cent (8/10) buffalo heifers showed estrus induction at the time of insemination. Similar result was recorded by Jabeen et al [19] Thorat et al [20] , Savalia et al [21] and Buhecha et al [16] in anoestrus buffaloes. In Doublesynch protocol total 80 per cent (8/10) buffalo heifer showed estrus symptoms at the time of insemination.…”

“…However, 100 per cent estrus was recorded following doublesynch protocol in buffalo by Mirmahmoudi and Prakash, [23] In control group total 50 per cent (5/10) buffalo heifer showed estrus symptoms at different time interval within 90 days. Whereas, Lower estrus response was observed by Naikoo et al [24] Parmar et al [25], Nakrani et al [26] and Buhecha et al [16] in anestrous buffaloes. In present study maximum estrus induction was obtained in Heatsynch group followed by Ovsynch and Doublesynch group.…”

Evaluation and Comparison of Therapeutic Efficacy of Various Hormonal Protocols in Anoestrus Buffalo Heifers of Semi-Arid Region

“…In Heatsynch protocol total of 90 percent (9/10) of buffalo heifers showed estrus symptoms at the time of insemination. A similar result was recorded by Buhecha et al [13] in anestrues buffaloes. However, 100 percent estrus was recorded following heatsynch protocol in buffalo by Ali et al [14] In Doublesynch protocol total of 80 percent (8/10) of buffalo heifer showed estrus symptoms at the time of insemination.…”

“…2. [13] in anestrous buffaloes and a lower conception rate (10.00%) in buffaloes Yotov et al, [11] was observed.…”