EFFECT OF GASTRO-INTESTINAL HELMINTH PARASITIC INFESTATION ON REPRODUCTIVE PERFORMANCE IN BOVINES OF HIMACHAL PRADESH
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Date
2019-07-23
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CSKHPKV, Palampur
Abstract
This study was planned to study the effect of gastro-intestinal parasitism on reproductive efficiency of bovines in Himachal Pradesh. The study was divided into two parts. Part one included the screening of gastro-intestinal parasites through coprological examination of cattle, buffaloes and yak crosses in different districts of Himachal Pradesh. Second part of study was conducting different treatment trials, in which total 100 cows confirmed for parasitic infestation by fecal examination were selected under different treatment groups out of which 80 were anestrus and 20 were without any reproductive ailment. Overall 53 cows were selected in University livestock farm and 47 were from field conditions around Palampur. Cows were divided into five groups viz. Fenbendazole treated (Group I; Farm; n=10, Field; n=10), mineral mixture supplemented (Group II; Farm; n=10, Field; n=10), Fenbendazole and mineral mixture supplementation in combination (Group III; Farm; n=12, Field; n=8), no treatment in positive cows (control I; Group IV; Farm; n=11, Field; n=9) and healthy cows without reproductive ailment (Control II; Group V; Farm; n=10, Field; n=10). Faecal examination was done for evaluation of parasitic load at pre and post stages of treatments, whereas, trans-rectal ultrasonography was done to understand follicular dynamics and ovarian response to various treatments followed by pregnancy diagnosis. Blood samples were collected before and after treatment for complete blood count and mineral estimation.
In present study, incidence of gastro-intestinal parasites was 66.3, 50.0 and 46.3 per cent in cows, buffaloes and yak crosses, respectively, diagnosed with reproductive ailments. Highest incidence was reported in case of true anestrus animals. In case of treatment trial groups, maximum number of cows which showed return to estrus were those treated with de-wormer and mineral mixture, followed by dewormer and mineral mixture alone, respectively. Estrus induction rate was 50 per cent in Fenbendazole treated cows, whereas, it was 45.0, 60.0 and 15.0 per cent in mineral mixture supplemented, Fenbendazole and mineral mixture treated and control I group, respectively.
Complete blood count parameters did not show any significant difference (P>0.05) under different treatment trials. Plasma concentration of inorganic Phosphorus showed significant increase (P<0.05) in animals treated with dewormer and mineral mixture. Plasma concentration of copper and magnesium showed significant increase (P<0.05) in animals treated with dewormer and mineral mixture, as well as animals treated with mineral mixture alone.
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