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Birsa Agricultural University, Ranchi

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1994 - 19974
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Subject: Animal Genetics and Breeding × End date: 1997 × Start date: 1993 × Type: Thesis ×
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Now showing 1 - 4 of 4
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    ThesisItemOpen Access
    Studies on Genetic and Phenotypic Parameters of Some Economic Traits and Construction of Selection Indices in Black Bengal And Its Beetal Half-Bred Goats
    (Birsa Agricultural University, Ranchi, 1997) Devesh Kumar Singh; Dr.S.K.Verma
    1. Beetal halfbreds were superior to purebred Black Bengal with respect to growth under farm condition of management. II. Males were significantly heavier than females at birth. III. The body weight and body biometries were more in single barn kids than that of twins. IV. Winter born kids were significantly heavier than that of summer and monsoon barn kids in both the genetic groups. V. All growth traits were significantly better during early years of establishment of farm. VI. Body weights, biometries and daily gain in weight during 0-3 and 3-6 months of age had generally significant positive linear association with birth weight and dam's weight at kidding. VII. Beetal halfbreds were superior to that of pure bred Black Bengal goats in most of the milk production and reproduction traits.
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    ThesisItemOpen Access
    Genetic Studies of Some Economic Traits of Black Bengal and Its Beetal Halfbreds under Farm And Village Conditions
    (Birsa Agricultural University, Ranchi, 1995) Nirmal Kumar Singh; Dr. D.K. Mukharjee
    Following conclusions were drawn on the basis of present findings: Beetal halfbreds were superior to purebred Black Bengal with respect to growth under both managemental systems, Growth of kids of both genetic groups was better under farm than village condition of management. Results suggested need of special care to Beetal halfbreds during pre- and post-weaning periods for better gain in body weight under village condition of management. Positively significant phenotypic and positive and moderate to high magnitude of genetic correlations among body weights at all ages indicated that the kids could be selected for higher body weight at 6th month of age on the basis of their weights at early ages from birth to 5th month. Birth weight and gain in body weight upto 6th month of age had negative association with litter size at birth. Body weights had positive linear association with dam's weight at kidding. Body weight at 6th month of age can be predicted with 72.31 and 67.07% accuracy on the basis of weights at birth 1,2 and 3 months of age under village and farm conditions of management
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    ThesisItemOpen Access
    Studies on Some Genetic And Non-Genetic Factors Affecting Carcass Traits In Pigs
    (Birsa Agricultural University, Ranchi, 1994) Durgesh Dutta Jha; Dr.S.Nath
    1. Genetic group had highly significant effect on all the carcass traits under study. 2. In general, Hampshire was superior in respect to most of the carcass traits than those of other two exotic breeds (LVY and LR) followed by T X D, LMY half breds and Desi. 3. Age and weight had significant influence on almost all the carcase traits, 4 Although sex had non-significant influence on most of the carcass traitc but females were elightly superior than males in almost all the caroase traite, 5.The animal kept on concentrate feed were superior to animal reared on hotel wastes concentrate feed followed by animal maintained on kitchen want+ grazing.
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    ThesisItemOpen Access
    Genetic Studies on Some Economic Traits in Exotic, Desi Pigs and Their Crosses under Farm and Village Condition of Rearing
    (Birsa Agricultural University, Ranchi, 1994) Rameshwer Narain Pandey; Dr. S.K. Singh
    1.Genetic group had significant effect on all the growth traits under study at various stages. of life both under farm and village conditions of rearing. (11) In general, higher body weight was observed in Hampshire than those of LWY & T&D followed by halfbreds (LWY x D&H x D) and desiunder farm conditions of rearing, whereas, the values under village conditions of rearing was found to be highest in T&D than those of LWY halfbreds followed by Large White, Hampshire, Hampshire halfbreds and Desi. (iii) Almost similar growth rate were recorded in T&D and LWY halfbreds, but both were significantly superior to Hampshire halfbreds. (iv) Males were slightly superior to females in growth rate at most of the ages, but the differences were non-significant statistically. (v) Growth rate during preweaning period decreased with the increase of litter size at birth of their dam. (vi) There was significant increase in pre weaning growth rate with the increase of their birth weight but it had non-significant influence on post weaning growth rate. (vii) There was a significant increase in post-weaning growth rate in progressive manner with the increase of their weight at the time of weaning.