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Theses

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1976 - 197913
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Subject: Poultry Science × End date: 1979 × Start date: 1975 × Type: Thesis × Thesis Type: M.V.Sc. ×
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Now showing 1 - 9 of 13
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    ThesisItemOpen Access
    Evaluation of productive performance of desi ducks reared in vconfinment
    (Department of Poultry Sciences, College of Veterinary and Animal Sciences, Mannuthy, 1978) Andrews, C V; KAU; Venugopalan, C K
    This thesis embodies the results of an evaluation of the productive performance of Desi ducks reared in confinement. One hundred ducks of 135 days old were reared in two groups of 50 each under intensive and semi intensive system of management. The results revealed that the ducks reared under intensive system returned better hen-day egg production and also consumed less feed than those under semi intensive system. The efficiency of feed conversion did not differ, between treatments. The pattern of the body weight maintenance was similar in both the systems and the survival rates were excellent in both systems. The two systems of rearing did not appear to exert any influence on the egg size or egg quality in terms of albumen, yolk and shell percentages. Fertility and hatchability of eggs were better in the semi intensive system. It was concluded from the above results that the intensive system of rearing Desi ducks may be adopted for table egg production while for breeding purposes, semi intensive system may be better choice.
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    ThesisItemRestricted
    Studies on certain economic traits in desi ducks
    (Department of Poultry Science, College of Veterinary and Animal Sciences, Thrissur, 1977) Renchi P, George; KAU; Unni, A K K
    This thesis embodies the results of an investigation carried out to study the incubation, growth and processing characteristics of desi ducks (Anas platyrhyncos). Duck eggs procured from a local farmer were used in this study. Sound eggs were weighed and their shape indices were calculated based on the measurements of length and width of individual eggs. The eggs were grouped in to four shape index ranges and were incubated in chicken incubator. The hatch records were obtained. The dead in shells and dead germs were subjected to bacteriological and pathological studies. The ducklings hatched were reared on two systems of management viz., battery and litter floor upto seventh week of age when they were transferred to semi intensive system upto twelve weeks of age. Thirty randomly selected male ducklings were subjected to slaughter studies at twelve weeks age. The desi duck egg showed a mean weight of 68.86 g with a range of 55 to 85 g. The study reveals that the shape index has no influence on fertility, hatchability or weight of duckling at hatch. Egg weight was found to be significantly correlated with the hatch weight of ducklings. It was observed that the fertility of eggs was fairly good even with a male femal ratio of 1: 25. The incubation data suggested that duck eggs could be efficiently hatched in incubators meant for chicken with suitable measures to provide higher humidity. Weekly body weight, feed and water consumption data for desi ducklings are placed on records. The male ducklings recorded better body weights over the females during all ages confirming the normal sexual dimorphism. The special problems, encountered in the processing of desi ducks are discussed and data on yields and losses during dressing are presented.
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    ThesisItemOpen Access
    Performance of certain purebreds and crossbreds for broiler traits
    (Department of Poultry Science, College of Veterinary and Animal Sciences, Mannuthy, 1979) Leo, Joseph; KAU; Ramakrishnan, A
    An experiment was conducted to compare Australorps, (ALP), Rhode Island Red (RIR) and White Plymouth Rock (WPR) breeds of chicken and their crosses for broiler production. All the nine possible combinations of these breeds were taken, the genetic groups being three purebred and crossbreds. There were twenty chicks for each group and a total of 180 chicks. They were raised upto twelve weeks of age on deep better identical conditions of management. Body weight was recorded at ten and twelve weeks of age. Feed efficiency and genetic effects – General combining ability, Specific combining ability and Reciprocal effects on body weight-were also calculated at ten weeks of age. Slaughter studies were conducted at ten and twelve weeks of age.
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    ThesisItemOpen Access
    Economics of raising white leghorn male chicks for meat
    (Department of Poultry Science, College of Veterinary and Animal Sciences, Mannuthy, 1979) Maria, Liza Mathew; KAU; Venugopalan, C K
    With a view to determine the economics of raising White Leghorn male chicks for meat, the present study was undertaken. Two hundred one-day old White Leghorn chicks were divided randomly in to four groups of fifty chicks each to form two treatments with two replicates. Chick starter, grower: and broiler starter, finisher diets were fed.
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    ThesisItemOpen Access
    Effect of certain feed additives on boiler performance
    (Department of Poultry Science, College of Veterinary and Animal Sciences, Mannuthy, 1976) Sabarinathan, Nair R; KAU; Ramakrishnan, A
    This thesis incorporates the findings of an investigation carried out to study the effect of terramycin, neftin furazolidone and arsenic acid on certain broiler traits of economic importance.Commercial broiler chicks were employed for the study, and were raised on litter floor. The chicks were fed broiler starter from 0-6 weeks and broiler finisher from 7-8weeks. The additives were incorporated at levels recommended by the manufactures and the duration of the study was for 8 weeks
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    ThesisItemOpen Access
    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; KAU; Kochugovindan, Unni A K
    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.
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    ThesisItemOpen Access
    Utilisation of dried poultry manure in broiler rations
    (Department of Poultry Science, College of Veterinary and Animal Sciences, Mannuthy, 1978) Elizabeth, V K; KAU; Venugopalan, C K
    An experiment was designed to study the effects of feeding three levels of dried poultry manure on broiler traits. One hundred and sixty commercial broiler chicks were divided randomly in to eight groups of twenty chicks to form four treatments of two replicates. The four dietary treatments were 0,10,20 and 30 per cent DPM in the diet. The diets were isocaloric and isonitrogenous. Weekly body weights, weekly feed consumption and feed conversion efficiency were recorded. At eight weeks of age, six birds from each treatment were subjected to slaughter studies. The results of the study indicated that DPM can be used as a poultry feed ingredient without deleterious effect only up to 10 per cent in broiler ration to economise broiler production. It further revealed that incorporation at higher levels (20 and 30 per cent) significantly depressed growth. The feed efficiency was almost comparable among the treatment groups. Analysis of slaughter data revealed no significant difference among dietary treatments. Based on the above results, it appears reasonable to conclude that DPM can be exploited as a poultry feed ingredient and that it can be used up to 10 percent in the rations meant for broilers to economise broiler production.
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    ThesisItemOpen Access
    Evaluation of dried poultry manure in layer rations
    (Department of Poultry Science, College of Veterinary and Animal Sciences, Mannuthy, 1978) Peethambran, P A; KAU; Venugopalan C K
    Forty single comb White Leghorn pullets aged 25 weeks were divided in to four groups of 10 birds each and the groups were on diets containing O (control), 10, 15 and 20 per cent dried poultry manure for 168 days. The entire period of study was divided in to six periods of 28 days each. The results of this study revealed that the incorporation of dried poultry manure at 15 per cent level was better than 0, 10 and 20 per cent levels in terms of hen-day egg production, feed efficiency and egg weight. The feed consumption, pattern of body weight maintenance and livability of birds were not effected by the different dietary treatments. However, the feed efficiency was found to significantly better at 15 per cent level of incorporation than that at 20 per cent level. Egg weight was significantly decreased at 10 per cent level than 15 and 20 per cent levels of DPM in the diet. Per cent shell, per cent albumen and per cent yolk showed no appreciable different attributable to the inclusion of DPM at different levels in layer rations. Based on the overall performance of the birds fed 15 per cent dried poultry manure in the diet it was concluded that this level excelled the 0, 10 and 20 per cent level of DPM incorporation and proved to be more beneficial and economic.
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    ThesisItemOpen Access
    Production performance of two-way and three-way crosses in white Leghorns
    (Department of Poultry Science, College of Veterinary and Animal Science, Mannuthy, 1977) Reghunathan, Nair G; Kochugovindan, A K
    The analysis of the performance record of the Two-way and Three-way strain crosses maintained at the Central Poultry Breeding Farm, Hessarghatta, Banglore is reported in this thesis. The strain cross combination studied were MT, TM, MV, VM, VNT, VTM, TMV, and TVM. In order to evaluate the comparative efficiency of these two strain cross procedures egg production, egg weight, body weight, food efficiency and livability were used as the parameters. Both the two-way and three-way crosses were comparable in respect of egg production, egg weight, body weight and livability. Two-way crosses showed superior performance in respect of feed efficiency. Among the two-way crosses MT and TM showed better performance over there in respect of most of the economic traits. In the light of the above findings, it was concluded that two-way cross be preferred to three-way cross for exploiting heterosis. In view of the superior performance of MT and TM it was further concluded that the strains M and T can be used for evolving two-way crosses. The need for further refinement of these two pure strains with greater emphasis on egg weight is suggested.