Results 1 to 10 of about 18,710,559 (312)

Animal models with group-specific additive genetic variances: extending genetic group models. [PDF]

Genet Sel Evol, 2019
Abstract1.Theanimal modelis a key tool in quantitative genetics and has been used extensively to estimate fundamental parameters, such as additive genetic variance, heritability, or inbreeding effects. An implicit assumption of animal models is that all founder individuals derive from a single population.
Muff S, Niskanen AK, Saatoglu D, Keller LF, Jensen H.   +4 more
europepmc   +10 more sources

A fifth major genetic group among honeybees revealed in Syria. [PDF]

BMC Genet, 2013
BackgroundApiculture has been practiced in North Africa and the Middle-East from antiquity. Several thousand years of selective breeding have left a mosaic of Apis mellifera subspecies in the Middle-East, many uniquely adapted and survived to local ...
Alburaki M, Bertrand B, Legout H, Moulin S, Alburaki A, Sheppard WS, Garnery L.   +6 more
europepmc   +2 more sources

Effect of genetic group and feed system on locomotion score, clinical lameness and hoof disorders of pasture-based Holstein–Friesian cows

Animal, 2009
The aim of the present study was to determine the effect of the genetic group of the Holstein–Friesian (HF) and pasture-based feeding system (3 × 2 factorial arrangement) on locomotion score (six gait aspects scored from one to five), clinical lameness ...
G. Olmos, L. Boyle, B. Horan, D.P. Berry, P. O’Connor, J.F. Mee, A. Hanlon   +6 more
doaj   +2 more sources

Enhanced Genetic Characterization of Influenza A(H3N2) Viruses and Vaccine Effectiveness by Genetic Group, 2014-2015. [PDF]

J Infect Dis, 2016
Flannery B, Zimmerman RK, Gubareva LV, Garten RJ, Chung JR, Nowalk MP, Jackson ML, Jackson LA, Monto AS, Ohmit SE, Belongia EA, McLean HQ, Gaglani M, Piedra PA, Mishin VP, Chesnokov AP, Spencer S, Thaker SN, Barnes JR, Foust A, Sessions W, Xu X, Katz J, Fry AM.   +23 more
europepmc   +2 more sources

Effect of genotype and egg weight on hatchability properties and embryonic mortality pattern of native chicken populations

Poultry Science, 2022
: Fertility and hatchability are 2 major parameters that highly influence the reproductive performance of chicken breeds. The objective of this study is to investigate how the genetic background of chickens affects the aspects of fertility, hatchability,
Moataz Fathi, Osama Abou-Emera, Ibrahim Al-Homidan, Ahmed Galal, Gamal Rayan   +4 more
doaj   +1 more source

Productive characteristics in dairy buffalo (Bubalus bubalis) in the Eastern Amazon [PDF]

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2020
The objective of this study was to determine factors affecting phenotypic characteristics related to milk production and reproductive efficiency of dairy buffalo.
L.C. Marques, A.S. Matos, J.S. Costa, C.S. Silva, R.N.C. Camargo Júnior, C. McManus, V. Peripolli, C.V. Araújo, M.M.M. Laureano, R.L. Sales, J.R.F. Marques   +10 more
doaj   +1 more source

The effects of cow genetic group on the density of raw whole milk

Irish Journal of Agricultural and Food Research, 2021
The density of milk is dependent upon various factors including temperature, processing conditions, and animal breed. This study evaluated the effect of different cow genetic groups, Jersey, elite Holstein Friesians (EHF), and national average Holstein ...
P. Parmar, N. Lopez-Villalobos, J.T. Tobin, E. Murphy, F. Buckley, A. McDonagh, J.A. O’Mahony, S.V. Crowley, A.L. Kelly, L. Shalloo   +9 more
doaj   +1 more source

Unraveling the Basis of Neonicotinoid Resistance in Whitefly Species Complex: Role of Endosymbiotic Bacteria and Insecticide Resistance Genes

Frontiers in Microbiology, 2022
Bemisia tabaci (whitefly) is one of the most detrimental agricultural insect pests and vectors of many plant viruses distributed worldwide. Knowledge of the distribution patterns and insecticide resistance of this cryptic species is crucial for its ...
Mritunjoy Barman, Snigdha Samanta, Gouranga Upadhyaya, Himanshu Thakur, Swati Chakraborty, Arunava Samanta, Jayanta Tarafdar   +6 more
doaj   +1 more source

Estudo da subdivisão genética da raça Mangalarga Marchador Study on genetic subdivision of the Mangalarga Marchador horse breed

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2005
Foram analisadas as informações de 233.214 animais inscritos no arquivo zootécnico da Associação Brasileira dos Criadores do Cavalo Mangalarga Marchador, descendentes de 16 ancestrais com contribuição genética mínima de até 1% para a população atual ...
M.D. Costa, J.A.G. Bergmann, A.S.C. Resende, C.G. Fonseca, F.J.C. Faria   +4 more
doaj   +1 more source

Análise de custos de diferentes grupos genéticos de bovinos de corte terminados em confinamento Cost analyses on different beef cattle genetic groups finished in feedlot condition

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2004
O desempenho de 149 animais, machos inteiros, confinados por períodos variáveis de acordo com acabamento de carcaça, foi utilizado para avaliar a eficiência econômica dos grupos genéticos Nelore sobreano, Nelore desmamado, ½ Valdostana ½ Nelore, ½ ...
I.C. Ferreira, M.A. Silva, R.P. Reis, K. Euclides Filho, G.R. Figueiredo   +4 more
doaj   +1 more source