Results 11 to 20 of about 41,882 (231)

Suplementação mineral para bovinos [PDF]

Pubvet, 2017
A suplementação mineral propicia a correção de deficiências e desequilíbrios na dieta de bovinos. Com essas carências sanadas há um melhor desenvolvimento do animal e melhor produtividade, gerando então um melhor custo-benefício para o criador. Dentre os
Leidiane de Paula Silveira
core   +3 more sources

Intoxicação por ingestão de Brachiaria decumbens em bovinos no Brasil e achados patológicos decorrentes: Revisão

Pubvet, 2017
Essa revisão de literatura tem como objetivos mostrar a importância da gramínea Brachiaria decumbens na produção animal de bovinos, abordando fatores como ganho de peso animal, palatabilidade, qualidade nutricional da gramímea, e fatores edafoclimáticos ...
Lucilo Bioni da Fonsêca Filho, Vitória Yuki Endo, Tamiris Maria da Silva, Érica Lúcio Chaves, Maria Luiza Alves Pereira, Júlio Cézar dos Santos Nascimento   +5 more
doaj   +2 more sources

Prevalence of Anti-Leptospira Antibodies in Bovines (2018-2023) and Reported Serovars and Serogroups-A Systematic Review With Meta-Analysis. [PDF]

Vet Med Sci
A high global prevalence of anti‐Leptospira antibodies in cattle and buffaloes (39.5%) was identified, highlighting the widespread distribution of the bacterium and the need for increased attention to bovine leptospirosis. The prevalence of anti‐Leptospira antibodies was higher on dual‐purpose farms, but there were no significant differences between ...
Moreira MF, Azócar-Aedo L, Gallardo Paffetti M, Ricardo T.   +3 more
europepmc   +2 more sources

Genotype-By-Environment Interaction for Scrotal Circumference in Young Nellore Bulls Under Pasture and Feedlot Conditions and Its Correlation With Days to Calving. [PDF]

Anim Genet
ABSTRACT Scrotal circumference (SC) is a key reproductive indicator in beef cattle and an important predictor of male puberty and correlated female fertility. In this study, we evaluated young Nellore bulls raised under combinations of pasture and feedlot environments and modeled SC using a “double” reaction norm model. Additive genetic variance for SC
Silva CA, Bignardi AB, Cyrillo JNSG, Mercadante MEZ, Santana ML.   +4 more
europepmc   +2 more sources

Coronavírus bovino: Revisão [PDF]

Pubvet, 2021
Bovine Coronavirus (BCoV) is part of the Coronaviridae family. This virus belongs to a simple enveloped RNA chain that has 4 or 5 proteins (M, Sm, He, S and I), they project on a double layer of lipids. In addition to enteric infections related to BCoV (diarrhea in neonates and winter dysentery) there is also evidence that it is an agent of respiratory
Urias Fagner Santos Nascimento, Elizabete de Oliveira Lopes Melo, Vitoria Lorena de Matos Santana, Ana Paula Alves Melo, Yuri Rafael Teixeira de Souza Correia, João Vitor Oliveira Bomfim, Ana Carolina Trompieri Silveira Pereira, Gabriel Isaías Lee Tuñón, Huber Rizzo   +8 more
openaire   +2 more sources

Genomic Prediction and Genome-Wide Association Analysis of Heat Tolerance for Milk Yield in Buffaloes Using a Reaction Norm Model. [PDF]

J Anim Breed Genet
ABSTRACT The aim of this study was to evaluate the impact of incorporating genomic information on the estimation of genetic (co)variance components and the accuracy of breeding values for milk yield under varying thermal environments, and to identify SNPs associated with genes that play significant roles in heat tolerance.
Stefani G, Santana ML, El Faro L, Tonhati H.   +3 more
europepmc   +2 more sources

Milk Stability: Physicochemical and Performance Parameters in Highly Technified Holstein and Jersey Herds. [PDF]

Food Sci Nutr
Unstable milk causes several problems in the dairy chain, increasing milk rejection in industrial plants. Holstein and Jersey herds, when kept under adequate nutritional, sanitary, and thermal comfort conditions, produce highly stable milk. Furthermore, the ionized calcium present in the milk is a variable strongly associated with milk instability in ...
Neves TFF, Fischer V, Solano FB, Pereira JRA, de Souza Martins A.   +4 more
europepmc   +2 more sources

Diprosopia em bovino [PDF]

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2008
This work describes a malformation in one newborn female bovine, with two faces and two skull fused, showing one single head. Duplications of the nasal and oral structures, tetraofthalmy, two brains, one single cerebellum, and pons were observed. The right thyroid was hypertrophic and the other organs had normal morphology.
Rotta, I.T., Torres, M.B.A.M., Motta, R.G.   +2 more
openaire   +3 more sources

Comparative productive performance of cows born through embryo transfer, artificial insemination and natural mating in dairy and dual‐purpose herds raised in tropical conditions

Reproduction in Domestic Animals, Volume 58, Issue 8, Page 1104-1113, August 2023., 2023
Abstract A populational, observational and longitudinal‐retrospective study with records of 28 dairy‐specialized and dual‐purpose farms was carried out to compare the productive performance of cows born by embryo transfer (ET), artificial insemination (AI) and natural mating (NM), using the database of Centro Regional de Investigación para la ...
J. F. Martínez, C. S. Galina, J. Rojas, B. Vargas, J. J. Romero‐Zúñiga   +4 more
wiley   +1 more source

Soils, scale, or elites? Biological innovation in Uruguayan cattle farming, 1880–1913

The Economic History Review, Volume 76, Issue 2, Page 498-524, May 2023., 2023
Abstract This article examines the economics of innovation in livestock rearing during the first globalisation in Uruguay, the country with the most cattle per person in the world, both then and now. Using a new historical dataset of Uruguayan agriculture, the first one at a sub‐provincial level, I exploit regional differences in the adoption of cattle
Emiliano Travieso
wiley   +1 more source