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Subject: Animal Reproduction and Gynecology × Author: CHANDRA PRASAD, B × End date: 2009 × Start date: 2003 ×
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    ThesisItemOpen Access
    COMPARATIVE STUDIES ON MANAGEMENT OF RETENTION OF FETAL MEMBRANES WITH AND WITHOUT MANUAL REMOVAL IN CROSSBRED COWS
    (Sri Venkateswara Veterinary University, TIRUPATI – 517 502,A.P, 2003-09) CHANDRA PRASAD, B; MOULI KRISHNA, K
    ABSTRACT : The present investigation was carried out in Holstein Fresian crossbred cows at a commercial dairy farm located near Tirupati. A total of 30, consisting of ten calved normally (Group I) and 20 RFM affected crossbred cows maintained under uniform conditions were selected randomly. The RFM affected cows were divided into two groups of ten each (Group II and Group III). The Group II cows were subjected to manual removal of RFM and provided a variety of drug therapy. Whereas, Group III cows were not subjected to manual removal of RFM, however, 2-3 infusions of 20 ml diluted povidone - iodine intrauterine at weekly intervals starting at day 15-17 postpartum were placed. Cows in Group III were continuously watched for spontaneous expulsion of fetal membranes. Blood samples from each cow were collected at day 1, 8, 15, 25 and 35 postpartum in EDTA coated tubes. The TLC and lymphocytes, neutrophils in whole blood and haptoglobin, ceruloplasmin, arachidonic acid, nitrate and nitrite in blood plasma were determined. The reproductive tract of each cow was palpated per rectum at weekly intervals starting at day 15-17 postpartum until completion of uterine involution. Uterine biopsies were obtained after uterine involution and all cows were observed for first postpartum heat. During the period of experiment all cows were found to be healthy. The cows in Group III expelled retained fetal membranes spontaneously on an average 6-7 days (2-12 days). The haematological parameters studied did not differ significantly either between or within groups. The mean plasma haptoglobin concentrations did not differ between and within groups. Plasma ceruloplasmin concentrations differed (P<0.05) significantly between and within groups. The maximum and the minimum concentrations were recorded on day 8 and 35 postpartum respectively. Plasma concentrations of arachidonic acid differed (P<0.05) significantly within groups but not between groups. The concentrations gradually declined in Group I and Group II whereas, in Group III decreased after day 25 postpartum only. Nitrate and nitrite concentrations differed (P<0.05) significantly within and between groups. The concentrations of nitrate and nitrite declined in parallel with progress of uterine involution. The mean interval for uterine involution was found to be 33.10 ± 1.32, 35.20 ± 1.12 and 33.80 ± 1.67 days in Group I, Group II and Group III respectively. The mean days required for first postpartum observed heat were 75.30 ± 6.00, 83.20 ± 2.07 and 78.90 ± 5.89 days in Group I, Group II and Group III, respectively. The histopathological findings in uterine endometrium were almost similar in all the three treatment groups of crossbred cows. Based on the observations on spontaneous shedding of RFM,health, ceruloplasmin, nitrate, nitrite, uterine involution, interval to first postpartum observed heat and microscopic features on uterine endometrium revealed that the non-removal of RFM did not affect the subsequent performance of the animals. Infact it had slightest advantage over the manual separation. Hence, the concept of non-removal of RFM could be considered confidently for implementation.