Zobrazeno 1 - 10
of 630
pro vyhledávání: '"A. K. Chakravarty"'
Publikováno v:
Veterinary World, Vol 9, Iss 3, Pp 295-298 (2016)
Aim: The present study was performed to investigate the effect of genetic and non-genetic factors affecting milk fat yield and to estimate genetic parameters of monthly test day fat yields (MTDFY) and lactation 305-day fat yield (L305FY) in Murrah bu
Externí odkaz:
https://doaj.org/article/a3ba9143229c446aaaa662b1f82ee296
Publikováno v:
Veterinary World, Vol 9, Iss 3, Pp 235-244 (2016)
Heat stress has adverse effects on the reproductive performances of dairy cattle and buffaloes. The dairy sector is a more vulnerable to global warming and climate change. The temperature humidity index (THI) is the widely used index to measure the m
Externí odkaz:
https://doaj.org/article/fcd214591ae64869ae5081367fc6aa97
Publikováno v:
Veterinary World, Vol 8, Iss 7, Pp 928-931 (2015)
Aim: The objective of the study was to evaluate the effects of non-genetic factors on reproduction traits viz. age at first semen freezing and age at first semen use of breeding bulls in Sahiwal bulls by fitting least-squares analysis. Materials and
Externí odkaz:
https://doaj.org/article/7eb5447bde8841b095ceabc11a702cd9
Publikováno v:
Asian-Australasian Journal of Animal Sciences, Vol 28, Iss 7, Pp 943-950 (2015)
Heat stress has adverse effects on fertility of dairy animals. Decline in fertility is linearly associated with an increase in combination of both temperature and humidity. The purpose of this study was to investigate the relationship between tempera
Externí odkaz:
https://doaj.org/article/a38ddf4ff46e46fab1757f73775f518b
Publikováno v:
Veterinary World, Vol 8, Iss 6, Pp 745-749 (2015)
Aim: The study was conducted at Artificial Breeding Research Centre, NDRI, Karnal, to determine the sexual behavior and its relationship with semen quality parameters in Sahiwal breeding bulls. Materials and Methods: A total of 63 ejaculates were co
Externí odkaz:
https://doaj.org/article/099e1e18916d4b7ebddaabac305f42ac
Publikováno v:
Veterinary World, Vol 8, Iss 4, Pp 518-522 (2015)
Aim: The aim of the present investigation was to optimize the age at first use (AAFU) of semen of Murrah breeding bulls, which will help in early selection of bulls under progeny testing program for improving the reproductive performance in the herd.
Externí odkaz:
https://doaj.org/article/ac97842d62464927b42e14a432cf63ce
Autor:
Soumya Dash, A. K. Chakravarty, Avtar Singh, Pushp Raj Shivahre, Arpan Upadhyay, Vaishali Sah, K. Mahesh Singh
Publikováno v:
Veterinary World, Vol 8, Iss 3, Pp 320-325 (2015)
Aim: The aim of the present study was to assess the influence of temperature and humidity prevalent under subtropical climate on the breeding values for fertility traits viz. service period (SP), pregnancy rate (PR) and conception rate (CR) of Murrah
Externí odkaz:
https://doaj.org/article/4923277b1b1447dabdb0ec61f7c1d125
Autor:
Saroj Kumar Sahoo, Avtar Singh, A. K. Gupta, A. K. Chakravarty, Manvendra Singh, G. S. Ambhore
Publikováno v:
Veterinary World, Vol 7, Iss 12, Pp 1094-1098 (2014)
Aim: The aim was to estimate genetic parameters of weekly test-day (TD) milk yields and first lactation 305-day milk yield (FL305DY) in Murrah buffaloes. Materials and Methods: The data on 39059 weekly test-day milk yield (WTDY) records during first
Externí odkaz:
https://doaj.org/article/43903070d13a46d4b738e86b7f8111d3
Autor:
A. Upadhyay, D. K. Sadana, A. K. Gupta, A. K. Chakravarty, S. Dash, M. K. Das, Anushree M., P. R. Shivahre
Publikováno v:
Veterinary World, Vol 7, Iss 10, Pp 842-847 (2014)
Premature disposal of female calves before reaching milch herd and undesirable disposal of lactating cows are the major constraints in achieving larger herd size. During the early lactations, younger cows are supposed to give higher milk yield and un
Externí odkaz:
https://doaj.org/article/277c3112f4f349abac4a9231340f69c9
Publikováno v:
Indian Journal of Animal Sciences, Vol 88, Iss 4 (2023)
Indian milk production has shown remarkable performance during last four decades. Although the demand for milk is increasing at faster pace in consonance with increasing per capita income, changing dietary pattern, rapid urbanization and burgeoning p
Externí odkaz:
https://doaj.org/article/0a914d07bd254382a0452e3846fed226