Results 91 to 100 of about 38,290 (306)

The Indian zebu in Brazilian lands

open access: yesHistoria Agraria. Revista de agricultura e historia rural, 2018
In this article we will examine the history of Brazilian cattle breeding in the early twentieth century, focusing on the transitional period of intensification of production, when the racial standardization of cattle began to be considered key to industrializing breeding practices. To this end, we consider the initiatives of a group of farmers from the
openaire   +3 more sources

Late Stages of Tropical Silvopastoral System: An Opportunity to Maximise Forage and Animal Production

open access: yesGrass and Forage Science, Volume 80, Issue 3, July-September 2025.
ABSTRACT Silvopastoral systems (SPS) integrate pasture, trees, and animals in the same area and are alternatives for sustainable pasture intensification. We aimed to test whether, in the late stages of an SPS, with large but sparsely distributed trees (83 trees ha−1), forage and animal productivity are comparable to a full sun pasture (FS) over an ...
Henrique Bauab Brunetti   +10 more
wiley   +1 more source

Genetic trend for lactation persistency in Gyr cows

open access: yesBoletim de Indústria Animal, 2013
Persistency can be defined as the degree to which production is maintained after peak yield is reached. In Gyr cattle, persistency is an obstacle in milk production and profitability. So, persistency is an important trait that must be evaluated with total
Manuela Pires Monteiro da Gama   +5 more
doaj  

Allelic Frequency of Kappa-Casein Locus (Asp148/Ala) in F1: Simmental (Bos Taurus) X Ongole Grade (Bos Indicus) [PDF]

open access: yes, 2012
This study was conducted to detect the genetic variants (single nucleotide polymorphism) of kappa-casein locus (Asp148/Ala) in F1: Simmental (Bos taurus) x Ongole grade (Bos indicus), SIMPO.
Mu\u27in, M. A. (M)   +1 more
core   +1 more source

Study of congenital Morgagnian cataracts in Holstein calves [PDF]

open access: yes, 2019
Cataracts are focal to diffuse opacities of the eye lens causing impaired vision or complete blindness. For bilateral congenital cataracts in Red Holsteins a perfectly cosegregating mutation within the CPAMD8 gene (CPAMD8:g.5995966C>T) has been reported.
Beineke, Andreas   +9 more
core   +1 more source

Desempenho bioeconômico de sistemas intensivos de cria e de ciclo completo por meio de simulação

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2013
Foram simulados quatro sistemas de produção de bovinos de corte a partir de dados zootécnicos e econômicos de uma fazenda de ciclo completo situada no município de Corinto, região central de Minas Gerais.
R.A.V. Santana   +3 more
doaj   +1 more source

Studying Lactoferrin N-Glycosylation. [PDF]

open access: yes, 2017
Lactoferrin is a multifunctional glycoprotein found in the milk of most mammals. In addition to its well-known role of binding iron, lactoferrin carries many important biological functions, including the promotion of cell proliferation and ...
Barile, Daniela   +4 more
core   +2 more sources

Welfare of beef cattle

open access: yesEFSA Journal, Volume 23, Issue 7, July 2025.
Abstract This Scientific Opinion provides an assessment of beef cattle welfare focusing on risks related to flooring, water access, nutrition and feeding, high environmental temperatures, lack of environmental enrichment, lack of outdoor access, minimum space allowance and mixing practices. In addition, risks related to pasture and feedlots, weaning of
EFSA Panel on Animal Health and Welfare (AHAW)   +27 more
wiley   +1 more source

Animal genetics 100 years ago

open access: yesAnimal Genetics, Volume 56, Issue 3, June 2025.
Abstract One hundred years ago, the first book with the phrase “Animal Genetics” in its title was published. It was written by F.A.E. Crew, then Lecturer in Genetics and foundation Director of the Department of Research in Animal Breeding at the University of Edinburgh. The 352 pages of text provide a most interesting summary of the knowledge of animal
Frank W. Nicholas
wiley   +1 more source

Desenvolvimento luteal e concentrações plasmáticas de progesterona em vacas das raças Gir e Nelore

open access: yesRevista Brasileira de Zootecnia, 2003
A dinâmica folicular e a regressão luteal foram avaliadas em 12 vacas da raça Gir e em sete da raça Nelore tratadas com cloprostenol sódico entre os dias 10 e 12 do ciclo estral.
Álan Maia Borges   +4 more
doaj  

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