Results 81 to 90 of about 15,871 (205)

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

open access: yesJournal of Animal Breeding and Genetics, Volume 143, Issue 1, Page 79-91, January 2026.
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   +11 more
wiley   +1 more source

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

open access: yesPLoS 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   +12 more
semanticscholar   +1 more source

FACTORS AFFECTING HEAT TOLERANCE IN CROSSBRED CATTLE IN CENTRAL BRAZIL

open access: yesCiência Animal Brasileira, 2014
This study compared the adaptation traits in common crosses of crossbred dairy cattle in central Brazil. Twenty animals of each of three genetic groups were used: zebu (Bos indicus), Simmental x Zebu (SZ) and Holstein x Zebu (HZ).
Concepta Margaret McManus   +4 more
doaj   +1 more source

On the origin of Indonesian cattle. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND: Two bovine species contribute to the Indonesian livestock, zebu (Bos indicus) and banteng (Bos javanicus), respectively. Although male hybrid offspring of these species is not fertile, Indonesian cattle breeds are supposed to be of mixed ...
Kusdiantoro Mohamad   +10 more
doaj   +1 more source

Evolution des incisives chez les zébus malgaches [PDF]

open access: yes, 1974
Utilisant la méthodologie mise au point par Brazal Garcia, Roy, Dumont, sur des Taurins, l'auteur a observé la dentition de 708 zébus provenant de l'élevage extensif.
Gilibert, J.
core  

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

open access: yesEcology 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

Composição corporal e exigências energéticas e protéicas de bovinos mestiços leiteiros e zebu, castrados, em regime de recria e engorda Body composition and energy and protein requirements of dairy crossbreeds and zebu bovines, castrated, in the growing and fattening phases

open access: yesRevista Brasileira de Zootecnia, 2005
Para determinar as exigências energéticas e protéicas de animais mestiços leiteiros e zebu, castrados, nas fases de recria e engorda, foram utilizados 47 bovinos machos castrados, com peso vivo médio de 266 kg, sendo 16 zebu e 31 mestiços leiteiros (16 ...
Alfredo Acosta Backes   +5 more
doaj   +1 more source

La brucellose bovine en Afrique centrale. III. Résultats statistiques des enquêtes menées au Tchad et au Cameroun [PDF]

open access: yes, 1982
Les résultats statistiques obtenus lors d'enquêtes menées au Tchad et au Cameroun, de 1976 à 1980, sur la brucellose bovine sont exposés. Sur 14 344 sérums de femelles reproductrices analysés, plus de 30 p. 100 s'avèrent positifs (E.A.T.).
Bonnet, J.B.   +5 more
core  

Identification of stable internal control genes for accurate normalization of real-time quantitative PCR data in testicular tissue from two breeds of cattle

open access: yesAsian Pacific Journal of Reproduction, 2020
Objective: To assess the stability of 10 candidate internal control genes (ICGs), namely GAPDH, ACTB, RPL23, RPS15A, ATPSF1, GLUT5, HMBS, ATP2B4, PPIA, and BRP to normalize the transcriptional data from testes samples of Zebu and crossbred bulls. Methods:
Pradeep Nag   +8 more
doaj   +1 more source

Extériorisation des potentialités génétiques du zébu peulh sénégalais (Gobra) [PDF]

open access: yes, 1971
Trois taurillons appartenant à un lot d'animaux dont les potentialités génétiques ont été extériorisées par une alimentation rationnelle dès leur naissance sont abattus à 30, 29 et 27 mois.
Denis, Jean-Pierre, Valenza, Jean
core  

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