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Govind Ballabh Pant University of Agriculture and Technology, Pantnagar

After independence, development of the rural sector was considered the primary concern of the Government of India. In 1949, with the appointment of the Radhakrishnan University Education Commission, imparting of agricultural education through the setting up of rural universities became the focal point. Later, in 1954 an Indo-American team led by Dr. K.R. Damle, the Vice-President of ICAR, was constituted that arrived at the idea of establishing a Rural University on the land-grant pattern of USA. As a consequence a contract between the Government of India, the Technical Cooperation Mission and some land-grant universities of USA, was signed to promote agricultural education in the country. The US universities included the universities of Tennessee, the Ohio State University, the Kansas State University, The University of Illinois, the Pennsylvania State University and the University of Missouri. The task of assisting Uttar Pradesh in establishing an agricultural university was assigned to the University of Illinois which signed a contract in 1959 to establish an agricultural University in the State. Dean, H.W. Hannah, of the University of Illinois prepared a blueprint for a Rural University to be set up at the Tarai State Farm in the district Nainital, UP. In the initial stage the University of Illinois also offered the services of its scientists and teachers. Thus, in 1960, the first agricultural university of India, UP Agricultural University, came into being by an Act of legislation, UP Act XI-V of 1958. The Act was later amended under UP Universities Re-enactment and Amendment Act 1972 and the University was rechristened as Govind Ballabh Pant University of Agriculture and Technology keeping in view the contributions of Pt. Govind Ballabh Pant, the then Chief Minister of UP. The University was dedicated to the Nation by the first Prime Minister of India Pt Jawaharlal Nehru on 17 November 1960. The G.B. Pant University is a symbol of successful partnership between India and the United States. The establishment of this university brought about a revolution in agricultural education, research and extension. It paved the way for setting up of 31 other agricultural universities in the country.

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2020 - 20212
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Subject: Animal Genetics and Breeding × End date: 2021 × Start date: 2020 ×
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    ThesisItemOpen Access
    Genetic evaluation of first lactation traits and lactation curve models used for predicting part milk yields in crossbred cattle
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-07) Simran Kaur; Ghosh, A.K.
    The present investigation was undertaken utilising the records of 529 daughters of 79 sires spread over a period of 30 years from 1990 to 2019 in crossbred cattle maintained at Instructional Dairy Farm of G.B. Pant University of Agriculture and Technology, Pantnagar to study the effects of genetic and non-genetic factors, inheritance pattern of different economic traits, to compare the sire using LSM method and to compare the efficacy of different curve models utilising monthly milk yields. The least squares method (LSM) along their standard errors of age at first calving (AFC), first service period (FSP), first dry period (FDP), first calving interval (FCI), first lactation period (FLP), first lactation milk yield (FLMY), first lactation 305 days milk yield (FL305DMY), first lactation peak yield (FLPY) and first lactation days to attain peak yield (FLDAPY) were estimated as 1170.62±31.50 days, 263.94±3.40 days, 115.90±19.84 days, 513.00±22.60 days, 397.25±9.19 days, 3584.92±118.42 kg, 2854.26±59.61 kg, 14.18±0.27 kg and 35.08±0.87 days, respectively. The significant effect of sire was found on AFC, FLMY, FL305DMY and FLPY. In contrast, nonsignificant effect of genetic group was found on all the first lactation traits except FLDAPY. The non-significant effect of season was found on all the first lactation traits except FLDAPY. The significant effect of period was found on AFC, FLP, FL305DMY and FLDAPY. The heritability estimates for first lactation traits AFC, FCI, FLP, FLMY, FL305DMY, FLPY and FLDAPY 0.184 ± 0.04, 0.08 ± 0.02, 0.039 ± 0.02, 0.12 ± 0.03, 0.114 ± 0.03, 0.194 ± 0.04 and 0.015 ± 0.02. The positive genetic correlations indicated that selection for higher first lactation milk yield, higher first lactation 305 days milk yield and higher first lactation peak yield can be used as a selection criteria for the genetic improvement in the herd. The estimation of breeding value of sires and ranking them on the basis of estimated breeding values by LSM method may be done for selection and utilization of sires in herd improvement programme. The relative efficiency of four lactation curve models viz. parabolic exponential, inverse polynomial, gamma type function and mixed log function were compared. Inverse polynomial function described the highest coefficient of determination for monthly milk yields (R2 = 97.1%) with least value of root mean squares error (RMSE) and absolute mean deviation (AMD) suggesting inverse polynomial function to be the best fitted curve for explaining the first lactation curve by utilising the records of monthly milk yields.
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    ThesisItemOpen Access
    Evaluation of efficiency of sire model and animal model in crossbred cattle using first lactation and lifetime production traits
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2020-10) Dangi, Manita; Singh, C.V.
    The present investigation was carried on crossbred cattle maintained at Instructional Dairy farm of G.B. Pant university of Agriculture and Technology, Pantnagar. The data pertaining to 1029 crossbred cattle, progeny of 107 sires which was distributed over a period of 49 years from 1966 to 2014 cows with abnormal and incomplete records were excluded from the study. The following traits i.e. AFC, FLMY, FLP, FDP, FCI, LTMY, and LTLL were considered for the present study. The Least Squares Mean of the traits under study were estimated as 1198.22 ± 9.78 days, 2857.00 ± 38.76 kg., 334.11 ± 3.05 days, 119.90 ± 3.87 days, 448.02 ± 4.26 days, 10554.32 ± 244.67 kg and 1130.79 ± 18.91 days, respectively. The effect due to season of calving and genetic groups were observed to be non- significance on all the first lactation and lifetime traits. The effects due to period of calving and sire were found to have significant influence on all traits except first lactation period (FLP). The heritability estimates for AFC, FLMY, FLP, FDP, FCI, LTMY and LTLL were observed as 0.088 ± 0.066, 0.290 ± 0.072, 0.070 ± 0.070, 0.129 ± 0.074, 0.204 ± 0.080, 0.349 ± 0.014 and 0.327 ± 0.014 respectively by Animal Model. The heritability estimates for AFC, FLMY, FLP, FDP, FCI, LTMY and LTLL were observed as 0.011 ± 0.013, 0.151 ± 0.023, 0.101 ± 0.039, 0.037 ± 0.020, 0.059 ± 0.023, 0.218 ± 0.019 and 0.256 ± 0.009, respectively by Sire Model. The genetic and phenotypic correlations between first lactation and lifetime traits were ranged from low to high. The rank of sires for different sire evaluation methods revealed that for both the model ranks of sires almost had not similar rank for all the methods. Based on the information criterion of Akaike (AIC) and Bayesian information criterion (BIC) values were highest negative for Animal Model, and concluded that the Animal Model would be most adequate model for evaluation genetic parameters.