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  • ThesisItemOpen Access
    Evaluation of silk worm pupae meal on growth performance in large white yokshire pigs
    (Department of Animal Nutrition, College of Veterinary and Animal Sciences, Mannuthy, 1999) Ramamoorthi, S; KAU; Mercy, A D
    An experiment was conducted to assess the effect of silk worm pupae meal, a by-product from sericulture industry, on growth, feed conversion efficiency and economics of production in growing pigs. Twenty seven weaned Large White Yorkshire female piglets with an average body weight of 16 kg were selected from University Pig Breeding Farm, Mannuthy and were divided into three groups of nine piglets each, as uniformly as possible with regard to their age and body weight. The piglets were then randomly allotted to three pens to form three replicates per treatment. The three groups of piglets were maintained for 90 days on three isonitrogenous and isocaloric diets T ir Tj and Tj in which protein from unsalted dried fish was replaced by silk worm pupae meal at 0, 50 and 100 per cent level. The animals maintained under the three dietary treatments T w Ta and T, had almost similar growth rate (P>0.05) with a cumulative average daily gain of 481.4, 510.1 and 495.7g. respectively. The total feed intakes of the animals in different groups were almost similar. There was no significant difference (P>0.05) in cumulative feed conversion efficiency between the groups, the values being 3.78, 3.63 and 3.62, respectively, for animals in the dietary treatments Tlt T 2 and T 3. The digestibility coefficients of nutrients except that of ether extract, were slightly higher for the control, ration compared to those with silk worm pupae meal. The cost of production per kilogram live weight gain of pigs maintained on the three dietary treatments, T x, T2 and T3 were Rs. 31.46, 29.19 and 28.20 respectively. Though there was a slight decrease in the cost of production due to incorporation of silk worm pupae meal in place of unsalted dried fish in swine ration, the difference was non significant (P>0.05). The above results indicate that silk worm pupae meal can be effectively included in the diets of growing pigs without affecting growth, feed conversion efficiency and the cost of production.
  • ThesisItemOpen Access
    Evaluation of complete rations for kids for meat production
    (Department of Animal Nutrition, College of Veterinary and Animal Sciences, Mannuthy, 1999) Dildeep, V; KAU; George Mathen
    An investigation was carried out in Malabari kids of three to four months of age to study the influence of animal protein and monensin incorporated in complete pelleted concentrate type diet on the growth of animals. Thirty kids were divided into three equal groups, 1, 2 and 3, and fed on three pelleted complete rations, isocaloric and isoproteimic. Ration 2 incorporated meat cum bone meal and ration 3, fish meal at 5 percentage level replacing gingelly oil cake of ration 1 and fed to respective groups for a period of91 days. Animal protein inclusion did not show any significant positive influence on the growth of kids. No significant growth difference between the male and female animals of the three groups were observed. There was significant increase (Panimal protein, but had no positive influence on other body measurements. Significantly lower (Panimal protein containing diets, which can be attributed to palatability problems. The feed conversion efficiency and nitrogen balance values of kids were not influenced by animal protein inclusion. It also had no influence on digestibility of dry matter, organic matter, crude protein, ether extract, crude fibre and nitrogen free extract of the diets. Dressing percentage of kids slaughtered at six months of age in the three groups were almost similar. The gross profit that can be expected from animals of group 2 worked out to be Rs.357.90 compared to Rs.292.06 and Rs.286.20 per animal in group 1 and group 3 respectively for a period of 13 weeks. Histopathological study of the rumen tissues of all the three groups showed rumen papillae that were long and thickened with sparsely distributed keratin deposition indicating distinct parakeratosis, but no clinical symptoms of lactic acidosis were observed. It is possible to maintain kids of three to four months of age profitably on concentrate like complete feeds, supplemented with monensin and sodium bicarbonate for a period not exceeding 91 days.