Results 71 to 80 of about 100,178 (304)

Meta-Analysis of Mitochondrial DNA Reveals Several Population Bottlenecks during Worldwide Migrations of Cattle [PDF]

, 2014
Several studies have investigated the differentiation of mitochondrial DNA in Eurasian, African and American cattle as well as archaeological bovine material.
Albano Beja-Pereira, Anna De Gaetano, Borges Lopes, Catarina Ginja, Ceiridwen Edwards, Chen, Daniel Bradley, David Magee, Georgi Radoslavov, Horsburgh, Johannes Lenstra, Juan Lirón, Juha Kantanen, Kron, Licia Colli, Luca Ferretti, MacHugh, Magee, Mannen, Marleen Felius, Paolo Ajmone-Marsan, Peter Hristov, Riccardo Negrini, Ruth Bollongino, Shi, Takeda   +25 more
core   +3 more sources

Genomic Evaluation in Nellore Cattle for Reproductive Traits: Multiple Ways to Account for Missing Pedigrees

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Missing pedigrees are a common problem in most populations. Animals with unknown ancestors are usually treated as founders; however, this can underestimate inbreeding, not properly account for different base populations, and bias breeding values.
Larissa Temp, Gabriel Gubiani, Ludmilla Brunes, Claudio Magnabosco, Fernando Bussiman, Jorge Hidalgo, Daniela Lourenco, Fernando Baldi   +7 more
wiley   +1 more source

Ethological behavior of Bos taurus, Bos indicus, and Caqueteño Creole cattle in three tree cover systems of Brachiaria decumbens paddocks at the Amazon foothills in Colombia

Revista de Ciências Agroveterinárias, 2022
The study was conducted at the Amazon Research Center CIMAZ - MACAGUAL of the University of Amazonia, Colombia, with a tropical rain forest climate (Af).
Sandra Milena Londoño-Paéz, Jose Alfredo Orjuela-Chaves, Faver Álvarez-Carrillo, Juan Carlos Suarez-Salazar, Lucena Vasquez-Gamboa, Jhoyner Felipe Ortiz-Meneses, Gustavo Adolfo Celis Parra   +6 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

Fertility of and × crossbreed cattle after estrus synchronization

Theriogenology, 1989
Ninety-five cows (79 Boran and 16 Boran-Brahman crossbreeds) and 107 heifers (55 Boran and 52 Boran x Friesian F1 crossbreeds) were used to determine estrus response, estrus response interval and pregnancy rate following synchronization with prostaglandin (PGF(2)alpha), a progesterone-releasing intravaginal device (PRID) and Synchro-mate B (SMB).
International Livestock Centre for Africa (ILCA) P.O. Box 5689, Addis Ababa, Ethiopia ( host institution ), Tegegne, A. ( author ), Warnick, A.C. ( author ), Mukasa-Mugerwa, E. ( author ), Ketema, H. ( author )   +4 more
openaire   +4 more sources

Nutritional studies with Bos Taurus and Bos Indicus calves [PDF]

, 1976
Milk substitute diets whose dry matter contained 10 %, 20% and 30ft added fat were fed to Bos taurus calves in Scotland and !3os indicus and Bos taurus calves in Trinidad.
Black, David Hamilton
core   +1 more source

Sustainable development of smallholder crop-livestock farming in developing countries [PDF]

, 2018
Meeting the growing demand for animal-sourced food, prompted by population growth and increases in average per-capita income in low-income countries, is a major challenge.
Ates, S., Bell, L. W., Cicek, H., Hannaway, D. B., Kassam, S., Louhaichi, M., Mayberry, D. E., Norman, H. C.   +7 more
core   +1 more source

Genomic clues of the evolutionary history of Bos indicus cattle.

Animal Genetics, 2019
Together with their sister subspecies Bos taurus, zebu cattle (Bos indicus) have contributed to important socioeconomic changes that have shaped modern civilizations. Zebu cattle were domesticated in the Indus Valley 8000 years before present (YBP). From
Y. T. Utsunomiya, Y. T. Utsunomiya, M. Milanesi, M. Milanesi, M. R. Fortes, L. Porto-Neto, A. Utsunomiya, A. Utsunomiya, Marcos Vinícius Gualberto Barbosa da Silva, José Fernando Garcia, José Fernando Garcia, P. Ajmone-Marsan   +11 more
semanticscholar   +1 more source

Indirect Genomic Predictions for Indicine Cattle Breeds With SNP Effects From a Multi‐Breed Genomic Evaluation

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Indirect predictions (IP) are used for young genotyped animals that lack phenotypes (of their own or from progeny) or are from commercial herds. The former can be left behind because they do not contribute to the official genomic evaluations.
Marisol Londoño‐Gil, Jorge Hidalgo, Andres Legarra, Claudio U. Magnabosco, Fernando Baldi, Daniela Lourenco   +5 more
wiley   +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