Results 21 to 30 of about 169,122 (299)

Cassava Breeding I: The Value of Breeding Value [PDF]

open access: yesFrontiers in Plant Science, 2016
Breeding cassava relies on several selection stages (single row trial-SRT; preliminary; advanced; and uniform yield trials-UYT). This study uses data from 14 years of evaluations. From more than 20,000 genotypes initially evaluated only 114 reached the last stage.
Ceballos, H.   +7 more
openaire   +4 more sources

The Endocrine Function of Testes in 12- and 18-Month-Old Boars of Different Breeds [PDF]

open access: yesArchives of Razi Institute, 2021
Testes have several primary functions, such as male gametes production (spermatozoa) and secretion of several endocrine factors, including the production of steroid and protein hormones which facilitate elements in the healthy reproductive function of ...
V. I Eremenko   +5 more
doaj   +1 more source

Mitochondrial DNA lineages of Italian Giara and Sarcidano horses [PDF]

open access: yes, 2014
Giara and Sarcidano are 2 of the 15 extant native Italian horse breeds with limited dispersal capability that originated from a larger number of individuals. The 2 breeds live in two distinct isolated locations on the island of Sardinia. To determine the
Cancedda, M.   +25 more
core   +1 more source

Dual origins of dairy cattle farming--evidence from a comprehensive survey of European Y-chromosomal variation [PDF]

open access: yes, 2011
BACKGROUND: Diversity patterns of livestock species are informative to the history of agriculture and indicate uniqueness of breeds as relevant for conservation.
Ginja, Catarina   +71 more
core   +3 more sources

Heritability of Unilateral Elbow Dysplasia in the Dog: A Retrospective Study of Sire and Dam Influence

open access: yesFrontiers in Veterinary Science, 2019
Canine elbow dysplasia is a significant health issue affecting many breeds. Unfortunately, treatments remain relatively limited, so control of this disease often falls to selectively breeding for dogs with normal elbows. The objectives of this study were
Gabriela Baers   +3 more
doaj   +1 more source

Regional issues on animal genetic resources: trends, policies and networking in Europe [PDF]

open access: yes, 2010
European countries are individually and in collaboration carrying out active work on animal genetic resources (AnGR). The region has a very good starting point for work on AnGR: The breed concept was developed in Europe; current European mainstream ...
A. Mäki-Tanila   +5 more
core   +1 more source

Fragilidade osmótica dos eritrócitos de bovinos das raças holandesa, girolando e gir, criados no estado de São Paulo Erythrocyte osmotic fragility of bovine of Holstein, Gir/Holstein crossbreed and Gir breeds, raised in the State of São Paulo - Brazil

open access: yesCiência Rural, 2001
Foi estudada a fragilidade osmótica dos eritrócitos (FOE) de bovinos das raças Holandesa, Girolando e Gir, criados no Estado de São Paulo, objetivando estabelecer os valores padrões de referência e determinar a influência de fatores raciais.
Valéria Aparecida Caobianco Sant'Ana   +3 more
doaj   +1 more source

SUSCEPTIBILIDADE DE BOVINOS DAS RAÇAS JERSEY E GIR À ACIDOSE LÁCTICA RUMINAL: I - VARIÁVEIS RUMINAIS E FECAIS SUSCEPTIBILITY OF JERSEY AND GIR STEERS TO RUMEN LACTIC ACIDOSIS: I - RUMINAL AND FAECAL VARIABLES

open access: yesCiência Rural, 2002
Quatro garrotes Jersey (J) (Bos taurus) e quatro Gir (G) (Bos indicus), providos de cânula ruminal, foram utilizados para comparar a susceptibilidade à acidose láctica ruminal (ALR) aguda.
Celso Akio Maruta, Enrico Lippi Ortolani
doaj   +1 more source

Gene flow in a national cross-breeding beef population

open access: yesAnimal, 2011
Future progress in genetic improvement and the monitoring of genetic resources in beef cattle requires a detailed understanding of the population under selection.
D.L. Todd, J.A. Woolliams, T. Roughsedge
doaj   +1 more source

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