Results 131 to 140 of about 41,579 (270)

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

DIVERSIDAD GENÉTICA ENTRE SUBPOBLACIONES RACIALES BOVINAS DE COSTA RICA

Agronomía Costarricense, 2015
El objetivo del estudio fue cuantificar la diversidad genética entre 16 subpoblaciones raciales bovinas de Costa Rica, con base en 1412 muestras de ADN bovino de todo el país, evaluadas mediante 18 marcadores microsatélites. El número promedio de alelos (
Marco Martínez, Bernardo Vargas, Juan Miguel Cordero, Idania Chacón, Bernal León   +4 more
doaj  

The Pre-Natal Development of Skin and Hair in Cattle II. Bos Indicus l. X B. Taurus l. [PDF]

, 1960
AG Lyne, Margaret J Heideman
openalex   +1 more source

Differences in Milk Production Efficiency and Physiology Between Lactating Holstein Cows and Yaks Born and Kept at About 4000 m of Altitude When Fed the Same Diet

Journal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT Yaks (Bos grunniens) have developed numerous mechanisms to cope with hypoxic environments. Still, as their milk yield is low, the use of production systems building on dairy breeds at high altitude might increase efficiency, but this has not yet been explored.
Xinyu Zhang, Michael Kreuzer, Mutian Niu, Shengli Li   +3 more
wiley   +1 more source

Genetic diversity among bovine racial subpopulations of Costa Rica

Agronomía Costarricense, 2015
Genetic diversity among bovine racial subpopulations of Costa Rica. The objetive of this study was to quantify the genetic diversity among 16 bovine racial subpopulations of Costa Rica, based on 1412 samples of bovine DNA from around the country, which ...
Marco Martínez, Bernardo Vargas, Juan Miguel Cordero, Idania Chacón, Bernal León   +4 more
doaj  

Validation of Bos taurus SNPs for Milk Productivity of Sahiwal Breed (Bos indicus), Pakistan

Animals
The aim of the present study was the validation of the already reported Bos taurus SNPs in the Sahiwal breed. A total of nine SNPs of the casein gene were studied.
Asma Younis, Imtiaz Hussain, Syeda Nadia Ahmad, Amin Shah, Iram Inayat, Muhammad Ali Kanwal, Sadia Suleman, Muhammad Atif Kamran, Saima Matloob, Khawaja Raees Ahmad   +9 more
doaj   +1 more source

Bisoniana XI. Weitere Untersuchungen über Kreuzungen des Wisents, Bison bonasus (Linnaeus, 1758) mit dem Hausrind, Bos taurus dom . Linnaeus, 1758 [PDF]

, 1963
Małgorzata Krasińska
openalex   +1 more source

Multi‐scalar habitat selection unveils ecological domains in wolves when selecting rendezvous sites

Journal of Zoology, EarlyView.
Although habitat generalists, wolves may become particularly choosy when locating homesites (i.e., dens and rendezvous sites) especially in human‐modified landscapes. Using a multiscale approach, we investigated rendezvous sites (RV) selection in a historical stronghold of wolves in central Italy. Human infrastructure (i.e.
S. Droghei, M. Falco, P. Ciucci
wiley   +1 more source

Habitat alteration impacts predation risk in an aposematic amphibian

Journal of Zoology, EarlyView.
Clay models of fire salamanders in the Vienna Woods suffer more predation attempts in managed forest zones than in protected ones. These differences are mainly due to increased predation by birds in managed areas, which are characterised by higher tree species diversity.
D. Hagnier, C. Dittrich, M. van den Bos, B. Rojas   +3 more
wiley   +1 more source

A taste for dung: food preferences of dung beetles uncovered

Journal of Zoology, EarlyView.
Dung beetles have a generalist diet although they can develop preferences for specific excrements, such as elephant dung. Buffalo and wild boar dungs were broadly accepted among dung beetle species. In contrast, goat excrement was the least preferred. Abstract Insects represent the most megadiverse animal group, having evolved a wide range of feeding ...
Sandra Grzechnik, Francisco José Cabrero‐Sañudo   +1 more
wiley   +1 more source