National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
This study was undertaken to evaluate the effect of serum albumin and cholesterol level on the conception rate with Ovsynch protocol in cross-bred cattle. Fifty cross-bred cows were selected and divided into two groups- low albumin cholesterol (LAC; <3 mg/dl albumin and 150 mg/dl cholesterol) and high albumin cholesterol group (HAC; > 3.5 mg/dl albumin and 220 mg/dl cholesterol). The conception rate of LAC and HAC was 10% and 38% respectively that differed significantly (P<0.05). Return to heat on or before day 22 was significantly higher in LAC (60.7%) compared to HAC (32.3%). Pregnant cows of LAC group (n=5) had significantly higher albumin and cholesterol level (3.4±0.04 mg/dl and 194.78±3.75 mg/dl respectively) than their non-pregnant counterpart (3.29±0.01 mg/dl and 146.99±1.44 mg/dl respectively; n=30). On days 12, 14, 16 and 18 the progesterone concentration of non-pregnant cows of LAC group (2.9±0.04 ng/ml, 2.1±0.03ng/ml, 1.8±0.03ng/ml, 0.7±0.01 ng/ml respectively) was significantly lower than day 65 pregnant cows of HAC group (5.2±0.08 ng/ml, 4.7±0.11ng/ml, 5.3±0.09 ng/ml, 5.7±0.07 ng/ml respectively).From the results it can be inferred that low cholesterol and albumin level directly decreases the blood progesterone level and initiates early luteolysis, both are instrumental in early embryonic death and low conception rate with Ovsynch protocol. Since blood cholesterol is the main precursor for the synthesis of progesterone by the corpus luteum and 90% of progesterone in blood is bound to albumin, their deficiency directly affects the blood progesterone level. Blood albumin and cholesterol should always be checked and corrected before the start of Ovsynch protocol.
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