Results 51 to 60 of about 14,295 (248)

Nutritional efficiency of feed restricted F1 Holstein/Zebu cows during the middle third of lactation

Asian-Australasian Journal of Animal Sciences, 2019
Objective The objective of this study was to evaluate the effects of different levels of quantitative feed restriction on nutrient intake and digestibility, nitrogen balance, efficiency and feeding behavior, and productive performance in F1 Holstein/Zebu
P. Santana, V. R. Rocha Júnior, J. Ruas, F. P. Monção, Luana Alcântara Borges, Thaís Eleonora Santos Sousa, F. V. Silva, W. D. O. Rabelo, C. C. S. Carvalho, E. Sales   +9 more
semanticscholar   +1 more source

On the Identifiability of Genetic Parameters for Growth in Mice With a Massively Deep Pedigree

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT In models with direct and maternal genetic effects, structural features of the data are a potential source of bias and low accuracy of estimates for genetic covariance parameters. One of the well‐known reasons for such poor practical identifiability is the lack of dams with own observations.
X. Ding, A. A. Musa, N. Reinsch
wiley   +1 more source

Estudo genético quantitativo de características de carcaça e perímetro escrotal utilizando inferência Bayesiana em novilhos nelore

Bioscience Journal, 2010
Objetivou-se com este estudo avaliar o método de amostragem de Gibbs (GS) como ferramenta para se estimar os componentes de (co)variância e parâmetros genéticos para características de carcaça e reprodutivas: área de olho de lombo (AOL); espessura de ...
Vanessa Barbosa, Cláudio Ulhoa Magnabosco, José Benedito de Freitas Trovo, Carina de Ubirajara Faria, Dyomar Toledo Lopes, Marco Antônio de Oliveira Viu, Raysildo Barbosa Lôbo, Mariana Márcia Santos Mamede   +7 more
doaj  

Ingestive behavior of Guzerat and Sindhi heifers under the effects of feed restriction=Comportamento ingestivo de novilhas Guzerá e Sindi sob efeito de restrição alimentar [PDF]

Acta Scientiarum: Animal Sciences, 2012
This study aimed to evaluate the effect of feed restriction on the ingestive behavior of Guzerat and Sindhi heifers. A total of 36 heifers were used, 18 from each breed, randomly distributed in a completely randomized design, in a 2 x 3 factorial scheme.
Gherman Garcia Leal de Araujo, Edgard Cavalcanti Pimenta Filho, Edilson Paes Saraiva, Leilson Rocha Bezerra, Severino Gonzaga Neto, Ebson Pereira Cândido   +5 more
doaj   +1 more source

Genetic Parameters of Resilience Indicators Across Growth in Beef Heifers and Their Associations With Weight, Reproduction, Calf Performance and Pre‐Weaning Survival

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT In tropical extensive beef cattle systems, heifers raised on pasture are exposed to various environmental challenges that affect their growth and reproductive performance during the first breeding. Resilience indicators derived from deviations in longitudinal traits can quantify the magnitude of these challenges and the ability of an animal to
Gustavo R. D. Rodrigues, Júlia P. S. Valente, Vanessa T. Rezende, Luis F. C. Araújo, João B. Silva Neto, Lúcio F. M. Mota, Mário L. Santana, Roberta C. Canesin, Sarah F. M. Bonilha, Lucia G. Albuquerque, Maria E. Z. Mercadante, Joslaine N. S. G. Cyrillo   +11 more
wiley   +1 more source

Tendência genética para persistência da lactação em vacas Gir leiteiro

Boletim de Indústria Animal, 2013
O artigo não apresenta resumo em português.
Manuela Pires Monteiro da Gama, Diego Augusto Campos Cruz, Carlos Henrique Cavalari Machado, Mariana Alencar Pereira, Lúcia Galvão de Albuquerque, Lenira El Faro   +5 more
doaj  

Effects of body conformation and udder morphology on milk yield of zebu cows in North region of Cameroon

Veterinary World, 2017
Aim: The aim of the study was to assess the effect of udder morphological characteristics on milk yield in zebu cows of Cameroon. Materials and Methods: The diameter and height of the udder, length and diameter of the teat, and the milk yield were ...
K. J. Mingoas, J. Awah-Ndukum, Houinga Dakyang, P. A. Zoli   +3 more
semanticscholar   +1 more source

Isolation, Identification, and Antibiogram Characteristics of Staphylococcus aureus From Dairy Cows Kept Under Extensive Management System, in the Uba DebreTsehay District of Southern Ethiopia

Veterinary Medicine and Science, Volume 11, Issue 4, July 2025.
Bovine mastitis (44.2%) is prevalent in the study area, with significant resistance observed in S. auerus isolates for regularly used drugs. Improved proactive management strategies, including better sanitation, regular screening, and rational antibiotic use, are recommended.
Mabure Shille, Fitsum Dulo, Shubisa Abera, Seblewongel Ayechew   +3 more
wiley   +1 more source

Tendência genética para persistência da lactação em vacas Gir leiteiro

Boletim de Indústria Animal, 2013
O artigo não apresenta resumo em português.
Manuela Pires Monteiro da Gama, Diego Augusto Campos Cruz, Carlos Henrique Cavalari Machado, Mariana Alencar Pereira, Lúcia Galvão de Albuquerque, Lenira El Faro   +5 more
doaj  

Development of methane conversion factor models for Zebu beef cattle fed low‐quality crop residues and by‐products in tropical regions

Ecology and Evolution, 2016
The enteric methane conversion factor (Y m) is an important country‐specific value for the provision of precise enteric methane emissions inventory reports.
C. Kaewpila, K. Sommart
semanticscholar   +1 more source