The present study was carried out to investigate the relationship between blood serum concentrations of macro and micro minerals and development of retention of placenta (ROP) in crossbred cattle. Materials and Methods:The present study was carried out at Instructional Livestock Farm, Bihar Veterinary College and local Khatals in and around Patna. A total of 20 crossbred cattle (n=10 with normal expulsion of the placenta as control and n=10 with ROP) were selected in the present study. Blood samples were collected from these animals and serum was separated and stored in the deep freezer at −20°C till further analysis. The estimation of serum macro-minerals (Ca, P, Ca/P ratio) was done by Span diagnostic Kits (Surat, India) and trace minerals or micro-minerals (Zn, Cu, and Fe) were analyzed by atomic absorption spectrophotometer (Perkin Elmer AAS 220). Mean values were compared between both the groups at 0 h (at parturition) and 12 h after parturition. Results:The mean values of serum calcium and zinc were found significantly lower in cattle having ROP than control at both 0 h and 12 h after parturition. The mean values of serum Ca and P ratio obtained at 0 hour were significantly lower in ROP groups as compared to control groups and non-significant at 12 h. The mean values of serum inorganic phosphorus, copper and iron was found non-significantly lower in ROP cases as compared to control. Conclusions:Macro and micro mineral deficiency such as calcium, iron, zinc and copper in blood serum may be predisposing factor for the occurrence of retention of placenta in crossbred cattle.

Data on some linear traits along with age, body weight (BW) at breeding, parity and previous litter size (LZ) of 1008 pregnant Black Bengal goats were analysed using one-way Analysis of Variance. Higher age, heavier BW at breeding, higher parity order resulted more (P < 0.01) chance of triplet or quadruplet births as compared to that of single birth. Larger previous LZ resulted larger (P < 0.01) LZ in subsequent kidding. Most of the linear traits were higher (P < 0.01 or P < 0.05) in goats bearing multiple foetuses than in the goats bearing single foetus. The results of stepwise discriminant function suggested that heart girth, punch girth, BW, distance between trochanter major and pelvic triangle area might be the predictive indices for higher LZ.

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Aim:This work was done to study the effect of vitamin A, E and Se with varying sexual rest period in cross-bred cows with chronic endometritis. Materials and Methods: Cross-bred cows (n=396) from different villages of West Bengal with purulent or muco-purulent discharge with a history of infertility and repeat breeding for 3 to 6 months were chosen for the present study. These cows received uterine wash with lugol's iodine, intra-uterine and parenteral antibiotics and de-worming as general treatment. They were then divided into six groups viz. SR12 &#215; EV (n=59), SR12 &#215; Control (n=67), SR21 &#215; EV (n=65), SR21 &#215; Control (n=70), SR24 &#215; EV (n=66), SR24 &#215; Control (n=69) receiving sexual rest of 12 (SR12), 21 (SR21) and 24 (SR24) days with (EV group) or without (control) estradiol + vitamin A, E and Se. Results: The results indicate that the recovery rate of EV and control group was 76.27 % and 37.31 % respectively (P<0.01) in SR 12, 72.31 % and 47.14 % respectively (P<0.01) in SR 21 and 92.41 % and 63.77 % respectively (P<0.01) in SR 24. SR 24 showed significantly better (P<0.01) recovery rate compared to SR 12 and SR 21. Lowest recovery and conception rate of EV and control group in SR 12 might be due to insufficient time for the recovery of endometrium. Conclusion: The results indicate that parenteral and intra-uterine antibiotics had synergistic effect with estradiol, vitamin A, E and Se treatment in recovery from endometritis, though a minimum time interval is required for complete recovery of the endometrium for best conception rate. [Vet World 2013; 6(2.000): 106-108

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