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.
Highlights
IntroductionConsiderable attention has been focused on reproductive endocrinology and blood biochemical and mineral profile as a means to identify specific reproductive and nutritional
In the recent years, considerable attention has been focused on reproductive endocrinology and blood biochemical and mineral profile as a means to identify specific reproductive and nutritionalIJAVST – An Open Access Journal (ISSN 2320-3595)problems and thereby to adopt appropriate therapeutic measures to augment fertility
Phosphorus and magnesium influence the ability of animals to utilize other micro-minerals
Summary
Considerable attention has been focused on reproductive endocrinology and blood biochemical and mineral profile as a means to identify specific reproductive and nutritional. Cholesterol is synthesized from acetate with a series of intermediate substances It is an essential precursor for steroid hormone synthesis of testis, ovary and adrenal cortex. Phosphorus and magnesium influence the ability of animals to utilize other micro-minerals. The influence of these minerals on certain enzyme system may affect reproductive efficiency (Dhoble and Gupta, 1986), which might be reflected in lower blood level of them. This study was planned to evaluate the comparative efficacy of TriU-B, Ovsynch and Heatsynch protocols for fertility enhancement and to see their influence on plasma biochemical and mineral profile in anoestrus rural buffaloes
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