Abstract
A total of nine Repeat Breeder (RB) cows consisting three cows in each of the three treatment groups were selected at farmer’s house of Nukali village of Sahjadpur Upazila under Sirajgonj district to know the feeding effect of concentrate feed on reproductive efficiency of RB cows. Concentrate feeds were given to the RB cows based on their body weight and milk production. Same management like housing, watering and quantity of green grasses and straw were ensured during the experimental period. Heat detection of cow was done by Draminski Estrous Detector (DRAMINSKI) to perform artificial insemination in standing heat period. Experimental diet samples were tested for chemical compositions in the laboratories. Data were statistically analyzed by the computer software program of SPSS. Days open or calving to conception interval were 13.00±3.51, 9.33±1.20 and 15.33±1.45 months for treatment group T1, T2 and T3, respectively. All experimental cows (100%) of treatment group one (T1) were become pregnant whereas no cows (0%) were conceived in treatment group (T3). Mean conception rate of all experimental cows was 0.56±0.18 with no significant difference. The results from the present study showed that dietary status of crossbred dairy cow can improve the reproductive efficiency like the conception rate RB cows. It’s would be concluded that diet containing optimum level of CP, Ca and P might be played a vital role for maximum conception rate of RB cows which clearly indicates the dietary intervention effect for improving the breeding efficiency of repeat breeder cows.Asian J. Med. Biol. Res. March 2018, 4(1): 137-140
Highlights
Repeat breeding (RB) is a significant problem in dairy farmers under artificial insemination (AI) programs especially in the developing countries of the world like Bangladesh
The results from the present study showed that dietary status of crossbred dairy cow can improve the reproductive efficiency like the conception rate Repeat Breeder (RB) cows
It’s would be concluded that diet containing optimum level of CP, Ca and P might be played a vital role for maximum conception rate of RB cows which clearly indicates the dietary intervention effect for improving the breeding efficiency of repeat breeder cows
Summary
Repeat breeding (RB) is a significant problem in dairy farmers under artificial insemination (AI) programs especially in the developing countries of the world like Bangladesh. Incidence of repeat breeding in dairy cows has been reported by several studies ranging from 11.8% to 62% resulting economic loss in dairy cattle production (Lafi et al, 1992; Katagiri and Takahashi, 2004; Yosuf et al, 2012). That’s why; a preliminary work was done to identify the possible causes for repeat breeding problems in Baghabari milk shed area. Major causes associated to repeat breeding problems in dairy cows were identified by survey, rectal palpation of RB cows, nutritional analysis of concentrate feed and frozen semen quality analysis. Repeat breeding causes a great loss to the farmers in terms of milk and calves production. This study was undertaken with the objective to know the effect of concentrate feeds on the reproductive efficiency of repeat breeder cows at Baghabari milk shed areas
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