Results 11 to 20 of about 14,295 (248)

Signatures of Selection for Environmental Adaptation and Zebu × Taurine Hybrid Fitness in East African Shorthorn Zebu [PDF]

Frontiers in Genetics, 2017
The East African Shorthorn Zebu (EASZ) cattle are ancient hybrid between Asian zebu × African taurine cattle preferred by local farmers due to their adaptability to the African environment.
H. Bahbahani, Abdulfatai Tijjani, C. Mukasa, D. Wragg, F. Almathen, O. Nash, G. N. Akpa, M. Mbole-Kariuki, S. Malla, Mark Woolhouse, T. Sonstegard, C. V. Van Tassell, M. Blythe, H. Huson, O. Hanotte   +14 more
semanticscholar   +6 more sources

Energy metabolism and partition of lactating Zebu and crossbred Zebu cows in different planes of nutrition

PLOS ONE, 2018
The aim of this study was to determine the energy metabolism and partition of lactating Gyr and F1 Holstein x Gyr (F1 HxG) cows in different planes of nutrition.
P. D. Carvalho, A. L. Borges, R. R. Silva, H. F. Lage, P. A. D. Vivenza, J. Ruas, E. J. Facury Filho, R. L. A. Palhano, L. Gonçalves, I. Borges, E. Saliba, D. Jayme, Antônio Último de Carvalho   +12 more
semanticscholar   +6 more sources

Inbreeding depression in Zebu cattle traits. [PDF]

Journal of Animal Breeding and Genetics, 2016
The productivity of herds may be negatively affected by inbreeding depression, and it is important to know how intense is this effect on the livestock performance.
R. J. Pereira, M. L. Santana, D. R. Ayres, A. Bignardi, G.R.O. Menezes, Luiz Otávio Campos da Silva, C. Machado, L. Josahkian, L. G. D. Albuquerque   +8 more
semanticscholar   +5 more sources

Follicular dynamics in zebu cattle [PDF]

Pesquisa Agropecuária Brasileira, 2000
The aim of this study was to investigate the follicular dynamics during estrous cycle in Gir breed (Bos indicus) cows. Follicular growth and atresia during estrous cycle were evaluated using a portable ultrasound device. Luteal activity was evaluated by serum progesterone levels.
J. H. M. Viana, Ademir de Moraes Ferreira, Wanderlei Ferreira de Sá, Luiz Sérgio de Almeida Camargo   +3 more
  +10 more sources

Body Weight Estimation in Holstein × Zebu Crossbred Heifers: Comparative Analysis of XGBoost and LightGBM Algorithms. [PDF]

Vet Med Sci
This study evaluated the effectiveness of XGBoost and LightGBM algorithms for the purpose of live weight estimation in Holstein × Zebu crossbred heifers. In the analysis performed with a large biometric dataset, both models provided high accuracy, with the XGBoost algorithm standing out with R2 = 0.999 in the training set and R2 = 0.986 in the test set.
Herrera-Camacho J, Tırınk C, Parra-Cortés RI, Bayyurt L, Uskenov R, Omarova K, Makhanbetova A, Chekirov K, Chay-Canul AJ.   +8 more
europepmc   +2 more sources

Energy metabolism of pregnant zebu and crossbred zebu dairy cattle

PLOS ONE, 2021
The purpose of this study was to determine the energy partition of pregnant F1 Holstein x Gyr with average initial body weight (BW) of 515.6 kg and Gyr cows with average initial BW of 435.1 kg at 180, 210 and 240 days of gestation, obtained using respirometry. Twelve animals in two groups (six per genetic group) received a restricted diet equivalent to
Helena Ferreira Lage, Ana Luiza da Costa Cruz Borges, Ricardo Reis e Silva, Alan Maia Borges, José Reinaldo Mendes Ruas, Pedro Henrique Araújo de Carvalho, Marcelina Pereira da Fonseca, Paolo Antônio Dutra Vivenza, Lúcio Carlos Gonçalves, André Santos de Souza, Antônio Último de Carvalho, Elias Jorge Facury Filho, Edilane Aparecida Silva, Joana Ribeiro da Glória, Alexandre Lima Ferreira, Rodrigo Melo Meneses, Eloísa de Oliveira Simões Saliba   +16 more
openaire   +5 more sources

Fully Phased Population-Prevalent East African Cattle BoLA-I Alleles Determined Using PacBio HiFi Long-Read Sequencing Represent Five Novel Specificities With Distinctive Peptide Binding Potential. [PDF]

HLA
ABSTRACT Due to factors such as lower biosecurity, greater wildlife/farm animal interfaces, and environmental challenges, cattle in sub‐Saharan Africa are exposed to more diverse and intensive bacterial, viral and protozoan pathogen challenges than cattle in Europe and other high‐income regions of the world.
Obara I, Sandro A, Elati K, Conneley T, Nielsen M, Githaka N, Nanteza A, Bishop R, Nijhof A.   +8 more
europepmc   +2 more sources

The Vertebrate Breed Ontology: Toward Effective Breed Data Standardization. [PDF]

J Vet Intern Med
ABSTRACT Background Limited universally‐adopted data standards in veterinary medicine hinder data interoperability and therefore integration and comparison; this ultimately impedes the application of existing information‐based tools to support advancement in diagnostics, treatments, and precision medicine.
Mullen KR, Tammen I, Matentzoglu NA, Mather M, Balhoff JP, Esdaile E, Leroy G, Park CA, Rando HM, Saklou NT, Webb TL, Vasilevsky NA, Mungall CJ, Haendel MA, Nicholas FW, Toro S.   +15 more
europepmc   +2 more sources

Is the American Zebu really Bos indicus? [PDF]

Genetics and Molecular Biology, 1999
The American continent was colonized in the 16th century by Europeans who first introduced cattle of Bos taurus origin. Accounts register introduction of Bos indicus cattle into South America in the 19th and continuing through the 20th century, and most reported imports were males derived from the Indian subcontinent.
Meirelles, Flávio V., Rosa, Artur J.M., Lôbo, Raysildo B., Garcia, Joaquim Mansano, Smith, Lawrence C., Duarte, Francisco A.M.   +5 more
openaire   +7 more sources

Comparative Evaluation of a Locally Formulated Subclinical Mastitis Test Reagent Against the California Mastitis Test (CMT) in Dairy Cows in Ethiopia. [PDF]

Vet Med Sci
A novel Ethiopian mastitis test (EMT), made from local ingredients, was evaluated against the gold‐standard CMT for detecting subclinical mastitis in dairy cows. EMT showed 90.14% sensitivity, 100% specificity and strong agreement (κ = 0.87) with CMT. It offers a cost‐effective, accessible and field‐adaptable solution.
Zeweld SW, Tarekegn EK.
europepmc   +2 more sources