1. KAUTIR (Kerala Agricultural University Theses Information and Retrieval)
Permanent URI for this communityhttp://localhost:4000/handle/123456789/1
Browse
5 results
Search Results
Item 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; Mercy, A DAn 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.Item Effect of floor density on production performance of commercial hybrid layers(Department of Poultry Science, College of Veterinary and Animal Sciences, Mannuthy, 1992) Geo, A G; Amritha ViswanathIn order to prescribe optimum floor space allownace for the commercial hybrid layer ClLM-90) released from Mannuthy Centre of the 'AICRP on Poultry for Eggs' with the ultimate objective of reducing housing cost and achieving better labour efficiency, a study was carried out to evaluate its production performance on three different floor densities under "deep litter system of rearing. The floor densities evaluated were 1350/ 1575 and 1800 sq. cm. per bird. Each group was assigned to five replicates I and mean body weight at 20 weeks of age were kept uniform for all the replicates. Except for the difference in floor densities, all the managemental practices followed were uniform for the different treatment groups. Feed and water were given ad lib. The data were recorded for five, 28 day periods. Body . weight at 44th week of age and Age at fifty per cent production were not significantly influenced by the difference in floor densities- There was an increase in egg production as the floor space allowance per bird was increased and this increase was significant (P < 0-05) for the group provided with 1800 sq. cm. per bird than that of group provided with 1350 sq.cm. per bird. Feed consumption progressively increased as the floor space allowance increased and this increase was highly significant (P < 0.01). But/ the differences in feed efficiency among different groups were not statistically significant- Egg weight and other egg quality parameters such as shape Index, shell thickness. Albumen Index, Haugh Unit and Yolk Index were not affected by difference in floor space allowances. Mortality was also not found to be influenced by the difference in floor densities. Though the birds reared with a floor space of 1800 sq.cm. per bird showed higher egg production, the lower feed consumption, numerically higher efficiency of feed conversion and positive returns in terms of economics of production indicated that a floor density of 1350 sq.cm. per bird is more economical for the hybrid layer ILM-90 under Kerala condition.Item Comparative study on the production characteristics of white leghorns in cages and on litter(Department of Poultry Science, College of Veterinary and Animal Sciences, Mannuthy, 1978) Balachandran, T N; Kochugovindan, Unni A K (Guide)This thesis embodies the results of an investigation carried out to study the productive traits of White Leghorn hens under the two housing systems. Single comb White Leghorn pullets formed the experimental subjects and the systems of housing employed were cage and deep litter management. The results revealed that rearing birds in cages significantly improved per cent hen-day production, body weight and feed efficiency. Feed consumption was more in floor reared birds. Birds in the two treatments maintained normal body weight, throughout the experimental period. The albumen and yolk quality showed no change attributable to treatments, but shell weight showed significant increase in the eggs from caged birds than the floor. There was no significant difference in livability. It was concluded that the cage system of management of layers could be employed as a means for better returns.Item Effect of supplementation of dried yeast (Nutramix - Mdy) on growth performance of pre- ruminant calves(Department of Animal Nutrition, College of Veterinary and Animal Sciences, Mannuthy, 2002) Asitha, T V; Mercy, A DAn experiment was conducted to study the effect of dietary supplementation of dried yeast (''Neutramix-MDY'') on growth performance of pre-ruminant calves. Twelve calves of one week to one month of age were distributed into two groups of six calves each, as uniformly as possible with regard to age, sex and body weight, with one group receiving the control diet (calf starter, grass and milk) and the other group receiving dried yeast ("Neutramix-MDY") @ 20g/day along with the control diet. The final body weight (kg) and average daily gain (g/day) were 72.5 and 247 for control group and 76.2 and 284 for treatment group during the trial period. Though there was no statistically significant difference between the control and the treatment group, there was a numerical increase in both the parameters in treatment animals. The average feed to gain ratio was 4.94 and 4.60 for the control and treatment group respectively. There was no improvement in dry matter, crude protein, acid detergent fibre and neutral detergent fibre digestibilities in yeast fed group over the control. Haematological parameters such as blood glucose, plasma protein, calcium and phosphorus were unaffected by the dietary treatment. The above results indicate that supplementation of yeast culture to the diets of pre- ruminant calves had no statistically significant effect on animal performance.Item Supplimentation of protease on the production performance of Japanese qualis (Coturnis coturnis japonica) fed low protein diet(Department of Poultry Science,College of Veterinary and Animal Science, Mannuthy, 2005) Sheena Grace Koshy; Elizabeth, V K