Zobrazeno 1 - 10
of 286
pro vyhledávání: '"H. Farhangfar"'
Publikováno v:
Tulīd va Farāvarī-i Maḥṣūlāt-i Zirā̒ī va Bāghī, Vol 12, Iss 43, Pp 533-543 (2008)
This study was undertaken to estimate genetic trend and parameters of Holstein cattle in Khorasan province for milk yield using a spline random regression test day animal model. A total of 32854 monthly test day milk records (twice and thrice a day m
Externí odkaz:
https://doaj.org/article/f0bdf1c42af4496ba3983cf6c557a4ca
Publikováno v:
Tulīd va Farāvarī-i Maḥṣūlāt-i Zirā̒ī va Bāghī, Vol 12, Iss 43, Pp 425-434 (2008)
A total of 1256 records associated with body weight and Cashmere at different ages (birth and 3 and 9 months) obtained from 754 Cashmere goats were used to estimate the genetic parameters in southern Khorasan province during 2000- 2003. A set of univ
Externí odkaz:
https://doaj.org/article/93a7a8043abe46b483dcbf5fc3ebcf9b
Publikováno v:
پژوهشهای علوم دامی ایران, Vol 5, Iss 1 (2013)
A total number of 116,984 weight records belonging to 12,397 Baluchi lambs reared in Abbas Abad breeding station during years 1978-2008 were used for phenotypic evaluation of maximum daily growth (MDG) and analysis of environmental factors affecting
Externí odkaz:
https://doaj.org/article/5d42fd5eac7e41e4a882ff3a79f2ab80
Publikováno v:
پژوهشهای علوم دامی ایران, Vol 4, Iss 4 (2013)
This experiment was conducted to determine the effect of feeding alfalfa hay and starter fiber level on feed intake and performance of Holstein dairy calves, using thirty two male calves in a completely randomized design assigned to four diets in a 2
Externí odkaz:
https://doaj.org/article/87ba90f2f50845ca9ce578c7664363b2
Publikováno v:
پژوهشهای علوم دامی ایران, Vol 4, Iss 3 (2012)
The effect of barley or triticale and monensin on fattening performance of Brown Swiss calves (with average body weight of 170±30 kg) were studied in a completely randomized design with factorial arrangement of 2×2 and 4 replicates. Experimental tr
Externí odkaz:
https://doaj.org/article/12e7375e503f410d99c4471017178c5a
Publikováno v:
پژوهشهای علوم دامی ایران, Vol 4, Iss 2 (2012)
In order to analyse the effects of some environmental factors on milk production characteristics of Holstein cows in dairy farms of Mashhad, a total of 46,420 test day milk records belonging to 5,323 first lactation cows calved between 1994 and 2007
Externí odkaz:
https://doaj.org/article/a1b7ada7a434480f9bca97a9891dddb0
Publikováno v:
پژوهشهای علوم دامی ایران, Vol 4, Iss 2 (2012)
In this research in order to estimate genetic parameters for milk yield at different milking times for Holstein cows of Razavi Khorasan, a total of 180,462 monthly test day records belonging to first lactation cows calved from 2000 to 2009 were utili
Externí odkaz:
https://doaj.org/article/a756c2504a634b2abfb51aecd880a431
Publikováno v:
پژوهشهای علوم دامی ایران, Vol 3, Iss 3 (2012)
To estimate heritability and genetic trend for 305-d milk production and lactation persistency, a total of 130,668 monthly test day milk yields belonging to 15,183 first lactation Holstein cows in 131 herds and calved from 2000 to 2009 were used. To
Externí odkaz:
https://doaj.org/article/11c85d3ed7ec4ffeb85e3155034fefbe
Publikováno v:
پژوهشهای علوم دامی ایران, Vol 3, Iss 3 (2012)
In this study a total of 171,360 monthly test day milk records obtained from first lactation of Iranian Holstein cattle (three times a day milking) distributed in 96 herds and calved from 1999 to 2008 were used to estimate genetic parameters and to p
Externí odkaz:
https://doaj.org/article/df12f166025a481d95d4c54865ef8fb2
Publikováno v:
پژوهشهای علوم دامی ایران, Vol 3, Iss 2 (2012)
In this study, a total of 101,147 monthly test day records of somatic cell count collected from 13,977 first lactation Holstein cows (in 183 herds) calved between 2002 and 2006 were used. For the genetic analysis, a random regression test day model w
Externí odkaz:
https://doaj.org/article/ed7f05fdefa940beab9332b5c91f9076