Results 41 to 50 of about 32,248 (275)

NÍVEIS PERIFÉRICOS DE TESTOSTERONA TOTAL EM TOUROS GUZERÁ

Ciência Animal Brasileira, 2014
Twenty-four Guzerat bulls were evaluated from 24 to 34 months of age, aiming to determinate the bulls serum testosterone concentration profile and their variation according to age, body weight and andrologic traits.
Juliano Cesar Dias, Venício José de Andrade, Lucas Luz Emerick, Jorge André Matias Martins, Vicente Ribeiro do Vale Filho   +4 more
doaj   +1 more source

Studies on restricted suckling in dual purpose and dairy breed cattle in Mexico [PDF]

, 2005
The aim of this thesis was to investigate the effects of rearing calves by restricted suckling (RS) compared to artificial rearing (AR) in dual purpose and dairy breed cattle in Mexico, milked once or three times a day, respectively.
Fröberg, Sofie
core  

Equine trypanosomiasis, a systematic review and meta‐analyses: Prevalence, morbidity and mortality

Equine Veterinary Journal, EarlyView.
Abstract Background Equine trypanosomiasis is a neglected protozoal disease. Objectives To perform a systematic search of literature to explore: (1) In equines what is the global geographical distribution and prevalence of trypanosomiasis? In low and middle‐income countries (LMICs) is trypanosomiasis more prevalent than in higher‐income countries (HICs)
Alexandra G. Raftery, Lauren Gummery, Karelhia Garcia, Dinesh Mohite, Paul Capewell, David G. M. Sutton   +5 more
wiley   +1 more source

Genomic Analysis of Taurine and Indicine Ancestry in the Montana Tropical Composite Population

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT The Montana Tropical cattle, a Taurine and Indicine composite, were developed in Brazil since 1994 and were based on crossing four biological types of cattle: zebu (mainly Nelore), tropical adapted taurine (mainly Senepol and Romosinuano), British taurine (mainly Angus) and continental taurine (as Charolais, Simental and Limousin).
Camila Alves dos Santos, El Hamidi Hay, Elisangela Chicaroni de Mattos Oliveira, Rafael Espigolan, José Bento Sterman Ferraz, Tiago do Prado Paim   +5 more
wiley   +1 more source

Avaliação andrológica por pontos e comportamento sexual em touros da raça Nelore Andrologic evaluation by points and sexual behavior in Nelore bulls

Revista Brasileira de Zootecnia, 2009
Objetivou-se estudar a relação entre dois métodos de avaliação do potencial reprodutivo - Classificação Andrológica por Pontos (CAP) e comportamento sexual de touros da raça Nelore - e verificar a acurácia desses testes em predizer o potencial ...
Flávio Guiselli Lopes, José Domingos Guimarães, Eduardo Paulino da Costa, Giovanni Ribeiro de Carvalho, Tamires Miranda Neto   +4 more
doaj   +1 more source

Genetic Parameter Estimation for Pregnancy Loss and Their Association With Reproductive and Growth Traits in Brahman Cattle Under Extensive Tropical Conditions

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT This study estimated genetic parameters for pregnancy loss (PL) in Brahman cattle and evaluated the genetic correlation of PL with growth and reproductive traits using both the pedigree relationship matrix (A) and pedigree plus genomic relationship matrix (H). Data were collected from two herds in Bolivia, focusing on three age groups: heifers,
Daniel Cardona‐Cifuentes, Lucia G. de Albuquerque, Milagros Arias, Sindy Caivio‐Nasner, Luis Camaripano, Luis G. Gonzalez‐Herrera, Patricia I. Schmidt, Fernando Baldi   +7 more
wiley   +1 more source

Typology of cattle farms in the northern regions of Cameroon

Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 2018
The aim of this study was to establish the typology of cattle farms in the northern regions of Cameroon in order to reveal structural and functional characteristics that could be selected for an artificial insemination program.
Justin Kouamo, Paul Pa-ana
doaj   +1 more source

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

Frontiers in Genetics, 2017
El ganado East African Shorthorn Zebu (EASZ) es un antiguo híbrido entre el zebu asiático y el ganado taurino africano preferido por los agricultores locales debido a su adaptabilidad al medio ambiente africano. Los controles genéticos de estas adaptabilidades aún no se entienden claramente.
Hussain Bahbahani, Abdulfatai Tijjani, Abdulfatai Tijjani, Christopher Mukasa, David Wragg, Faisal Almathen, Oyekanmi Nash, Gerald N. Akpa, Mary Mbole-Kariuki, Sunir Malla, Mark Woolhouse, Tad Sonstegard, Curtis Van Tassell, Martin Blythe, Heather Huson, Olivier Hanotte, Olivier Hanotte   +16 more
openaire   +5 more sources

Stayability in the Era of Early‐Challenged Females: Genetic Parameters and Correlations With Economically Relevant Traits

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT This study aimed to estimate the variance components, heritabilities and genetic correlations between four new different categories of stayability (STAY48‐2, STAY48‐3, STAY54‐2, STAY54‐3) with weight at 240 days of age (W240), weight at 450 days of age (W450), scrotal circumference at 365 days of age (SC365), age at puberty in males (APM ...
Letícia Silva Pereira, Larissa Bordin Temp, Gabriel Gubiani, Miller Teodoro, Cláudio Ulhoa Magnabosco, Fernando Baldi   +5 more
wiley   +1 more source

Genetic variability of 10 microsatellite markers in the characterization of Brazilian Nellore cattle (Bos indicus)

Genetics and Molecular Biology, 2006
We assessed the polymorphism of 10 microsatellites in Brazilian Nellore cattle (Bos indicus) using a commercial multiplex system. Allele frequencies, polymorphism information content, heterozygosity and exclusion probability were calculated.
Marcelo Cervini, Flávio Henrique-Silva, Norma Mortari, Euclides Matheucci Jr   +3 more
doaj   +1 more source