Zobrazeno 1 - 10
of 60
pro vyhledávání: '"cow age"'
Autor:
Nathália Pasi Reis, José Fernando Piva Lobato, João Restle, Rangel Fernandes Pacheco, Amoracyr José Costa Nuñez, Dayana Bernardi Sarzi Sartori, Ricardo Zambarda Vaz
Publikováno v:
Scientia Agricola, Vol 80 (2023)
ABSTRACT Determining what and how much each environmental factor affects pregnancy is crucial to the sustainability and management of beef cow herds. The study evaluated through logistic regression the effect of environmental variables on the increas
Externí odkaz:
https://doaj.org/article/82fd50c538094de6aebba8fd009aab51
Publikováno v:
Animals, Vol 11, Iss 6, p 1822 (2021)
We evaluated heifer post-weaning residual feed intake (RFI) classification and cow age on dry matter intake (DMI) at two stages of production. Fifty-nine non-lactating, pregnant, (Study 1) and fifty-four lactating, non-pregnant (Study 2) commercial b
Externí odkaz:
https://doaj.org/article/ebd5e9ab55fa40608670937b48f7118e
Publikováno v:
Animals, Vol 11, Iss 6, p 1518 (2021)
The objectives of this study were to evaluate the influence of RFI and cow age on the supplement intake and grazing behavior of beef cattle. Average daily supplement intake (kg/cow/d) displayed an RFI × cow age interaction (p < 0.01), with a linear
Externí odkaz:
https://doaj.org/article/253f10e73e304ae1b060ccca617ecd4c
Publikováno v:
Acta Scientiarum: Animal Sciences, Vol 40, Iss 1, Pp e34519-e34519 (2017)
This study aimed to verify the effect of age of dam on the performance of male and female Nellore calves, using the following variables: average daily gain (ADG), adjusted weight for 205 days of age (W205), and number of days to reach 160 kg (D160).
Externí odkaz:
https://doaj.org/article/3c711bfcae114481b2d68eca499f0438
Akademický článek
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Autor:
M.A. Derkho, B.K. Balabaev
International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies, 13, 3, 13A3F: 1-12
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce08c0729f4810b72ecad30609fc43d7
Autor:
Beata SITKOWSKA
Publikováno v:
Journal of Central European Agriculture, Vol 9, Iss 1, Pp 57-62 (2008)
The aim of the paper was to evaluate the effect of the cow age group and lactation stage on the count of somatic cells in cow milk. The analysis was made based on the breeding documentation of 11359 test yields from cows representing twelve herds in
Externí odkaz:
https://doaj.org/article/584e14321cff4e68b7b3fac395e7566e
Autor:
Samuel A. Wyffels, Cory T. Parsons, Julia M. Dafoe, Darrin L. Boss, Boone H. Carter, Timothy DelCurto
Publikováno v:
Ruminants; Volume 1; Issue 2; Pages: 191-201
This study evaluated the influence of cow age and temperature adjusted for windchill (Twindchill) on supplement intake behavior of cattle winter grazing rangelands. A mixed-age herd of Angus-based cows (291 and 316 in year 1 and 2, respectively) were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16296dde4fc6d67667c7ffdbe2b85726
Autor:
João Restle, Paulo Santana Pacheco, João Teodoro Pádua, Marta Gomes da Rocha, Ricardo Zambarda Vaz, Eduardo da Costa Eifert, José Luis Moletta, Aline Kellermann de Freitas
Publikováno v:
Revista Brasileira de Zootecnia, Vol 33, Iss 6, Pp 1822-1832 (2004)
O experimento foi conduzido com o objetivo de avaliar a eficiência biológica de vacas dos grupos genéticos Charolês (CH) e Nelore (NE) amamentando bezerros CH e ½NE ½CH (filhos de vacas CH), NE e ½CH ½NE (filhos de vacas NE) mantidos juntos a
Externí odkaz:
https://doaj.org/article/e87fb1ceef494007819f0fd158cd0a5e
Autor:
Liliane Cerdótes, João Restle, Dari Celestino Alves Filho, Maria de Fátima Barros Leal Nörnberg, José Laerte Nörnberg, Ivan Heck, Magali Floriano da Silveira
Publikováno v:
Revista Brasileira de Zootecnia, Vol 33, Iss 3, Pp 610-622 (2004)
O objetivo deste trabalho foi avaliar a produção e composição do leite de vacas de corte das raças Charolês (C), Nelore (N), mestiças CN filhas de touros C e mestiças NC filhas de touros N, mantidas em pastagem nativa e submetidas a diferente
Externí odkaz:
https://doaj.org/article/dd748f9ff17e44dd8cebd21147f0dfb8