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Chaudhary Sarwan Kumar Himachal Pradesh Agriculture University, Palampur

Himachal Pradesh Krishi Vishvavidyalaya (renamed as Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya in June, 2001) was established on 1st November, 1978.The College of Agriculture (established in May, 1966) formed the nucleus of the new farm University. It is ICAR accredited and ISO 9001:2015 certified institution. The Indian Council of Agricultural Research has ranked this University at eleventh place among all farm universities of the country. The University has been given the mandate for making provision for imparting education in agriculture and other allied branches of learning, furthering the advancement of learning and prosecution of research and undertaking extension of such sciences, especially to the rural people of Himachal Pradesh. Over the years, this University has contributed significantly in transforming the farm scenario of Himachal Pradesh. It has developed human resources, varieties and technologies and transferred these to farming community enabling the State to receive the “Krishikarman award” of Govt. of India four times in row for food grain production among small states of the country. Today, the State has earned its name for hill agricultural diversification and the farming community has imposed its faith in the University.

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Author: Thakur, Shalini × End date: 2017 × Thesis Type: M.V.Sc. ×
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    ThesisItemOpen Access
    STUDIES ON THE EFFECTS OF PLANT BASED EXTRACT AGAINST Escherichia coli INFECTION IN BROILERS
    (CSKHPKV, Palampur, 2016-07-25) Thakur, Shalini; Asrani, R.K.
    The present study was planned with a view to observe the effects of methanolic extract of aerial parts of Artemisia nilagirica on growth, mortality, clinical signs, biochemical, pathological and ultrastructural changes in broiler chicks infected with E. coli. Three hundred thirty day old broiler chicks were randomly divided into six groups. The LD50 dose of E. coli was determined in a pilot experiment which was found to be 1x107 cfu ml-1. Plain E. coli infection, E. coli infection and methanolic extract (0.5g), E. coli infection and methanolic extract (1g), E. coli infection and methanolic extract (2g), methanolic extract (2g) and only feed was given to group(s) 1, 2, 3, 4, 5 and 6, respectively. E. coli infection was given on 7th day. Methanolic extract was given in water from day 4 to day 21. Results of present study showed that E. coli infected groups exhibited clinical signs of whitish diarrhea, anorexia, drooped wings, ruffled feathers, laboured and shallow breathing, huddling, dullness and depression. Higher values of ALT, AST, enzymatic creatinine, cholesterol, lower total protein and lower albumin values was observed in the plain infected group as compared to the control birds. However, in the combination groups (group 2, 3 and 4) the values were significantly less as compared the plain infected group (group 1). Grossly, in the group 1 fibrinous perihepatitis, fibrinous pericarditis, airsacculitis, splenomegaly and peritonitis were observed mainly. However, in the combination groups the gross lesions of significantly less intensity were observed. Microscopically, the liver and heart of group 1 revealed perihepatitis, pericarditis, vacuolar changes, leukocytic infiltration, necrosis and increased cytoplasmic granularity. Similarly in this group spleen showed reticuloendothelial hyperplasia, coagulative necrosis and lymphoid depletion. But the changes in the liver, heart and spleen were less severe in the combination groups. Significantly lower values were observed in group(s) 3 and 4. These changes suggest that Artemisia nilagirica has antimicrobial and hepatoprotective effects. Ultrastructural changes in the group 5 revealed relatively dense population of mitochondria along with abundant endoplasmic reticulum proliferation with no significant nuclear changes, as compared to control (group 6). These changes indicate that methanolic extract of Artemisia nilagirica is not toxic to liver even at the concentration of 2g per litre of water over a period of 18 days.
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    ThesisItemOpen Access
    GENETIC STUDIES ON SOME ECONOMIC TRAITS IN RAMBOUILLET x GADDI (HIMTAL MERINO) CROSSBRED SHEEP UNDER SUBTEMPERATE CONDITIONS
    (CSKHPKV, Palampur, 2016-02) Thakur, Shalini; Thakur, Y.P.
    ABSTRACT A crossbred sheep population locally named as “Himtal Merino” with 75% Rambouillet inheritance have been evolved at Govt. Sheep Breeding Farm, Tal (Hamirpur) by crossing of Gaddi ewes with Rambouillet rams. Data on 1204 crossbred lambs for growth and wool production, 669 ewes for reproductive and 370 sheep for lifetime performance traits, progeny of 28 sires, were analysed by LSMLMW method using a fixed effect model to study mean performances and effect of some genetic and non-genetic factors on performance traits. The variance and co- variance components for genetic parameters were estimated by single trait animal model using WOMBAT software. The overall least squares means were 3.26±0.06, 16.11±0.03, 21.82±0.06 and 26.29±0.12 kg for lamb‟s weight at birth, 3, 6 and 12 months of age respectively, 141.44±0.18 g/day for pre weaning growth rate and 63.68±0.34 g/day during 3-6 months of age, 24.53±0.45 g/day during 6-12 months age and 36.64±0.38 g/day over 3-12 months of age post weaning body weight gain. The means were higher for HTM than R x G and R x RG lambs. Higher growth rate was achieved during pre weaning than post weaning stages. The mean age at first breeding and first lambing were 924.25±0.78 and 1070.51±0.48 days respectively. For wool production traits, the means for age at first shearing (AFS) was 184.62±0.14 days, shearing interval as 180.29±0.07 days, first and second annual greasy fleece were 1823.30±1.59 g and 2163.83±1.83 g respectively, second annual yield being higher than first. The mean longevity was 1210.72±26.39 days with productive life span of 945.84±26.39 days. The heritability for growth traits was low to medium being 0.19±0.05, 0.14±0.04, 0.20±0.05 and 0.06±0.03 for birth, 3, 6 and 12 months of age body weights. High heritability (0.62±0.01) was estimated for pre weaning body weight gain. For post weaning body weight gains, heritability were 0.14±0.04 for 3-6 months, 0.15± 0.04 for 6-12 months and 0.10±0.04 for 3-12 months of age. The heritability for various reproductive traits were low to moderate with estimates of 0.22±0.02, 0.02±0.10, 0.08±0.11, 0.07±0.10, 0.21±0.04, 0.31±0.06, 0.16±0.03, 0.18±0.05 for age at first breeding, age at first lambing, first lambing interval, second lambing interval, first service period, second service period, first gestation period and second gestation period respectively. For wool production traits, low heritability of 0.19±0.07 and 0.18±0.06 was estimated for age at first shearing and shearing interval and low to moderate heritability of 0.21±0.06, 0.14±0.04, 0.24±0.11, 0.23±0.09, 0.31±0.08 and 0.29±0.07 for fleece yield at first, second, third and fourth clips, first and second annual fleece yields respectively. Most genetic and phenotypic correlations among growth traits were positive and high. Positive genetic correlations were observed among various wool production traits and growth traits and wool production traits indicated scope for selection on basis of early expressed growth traits.