Results 11 to 20 of about 10,561,542 (295)
Mljekarstvo, 2020 In order to estimate the variance components as well as the breeding value for daily milk production of Holstein cows in terms of heat stress defined as different THI threshold values (68, 70, and 72) 1,275,713 test-day records from 90,159 cows were used.
Goran Vučković +7 more
doaj +1 more source
Bayesian threshold analysis of litter size in sheep
Revista Colombiana de Ciencias Pecuarias, 2022 Background: Litter size at birth (LSB) is one of the most important economic traits in sheep and could be used in genetic improvement schemes for meat production.
Amin Mortazavi +5 more
doaj +1 more source
Frontiers in Genetics, 2022 Bone health is particularly important for high-yielding commercial layer chickens. The keel of poultry is an extension of the abdomen side of the sternum along the sagittal plane and is one of the most important bones.
Zhihao Zhang +7 more
doaj +1 more source
Genetic trends of Mexican zebu cattle populations
Italian Journal of Animal Science, 2022 In Mexico, the genetic evaluations in Zebu breeds began in 2011 and there are no studies about the genetic progress achieved. Thus, this research aimed to quantify and analyse the genetic progress for growth traits in the Mexican Zebu beef cattle ...
Neon Larios-Sarabia +8 more
doaj +1 more source
Genetic and phenotypic trends for growth traits of buffaloes in Brazil
Italian Journal of Animal Science, 2010 The objectives this paper were to estimate genetic parameters and genetic and phenotypic trends of birth weight (BWT) and weights adjusted to 205 (WT205), 365 (WT365) and 550 (P550) days of age of beef buffaloes born from 1985 to 2003 in Brazil.
W.R. Lamberson +4 more
doaj +1 more source
GENETIC CONTRIBUTION OF RAM ON LITTER SIZE IN ŠUMAVA SHEEP [PDF]
Poljoprivreda, 2015 The objective of the present study was to quantify the service sire effect in terms of (co) variance components of born and weaned lambs number and to propose models for the potential inclusion of this effect in the linear equations for breeding value ...
Jitka Schmidová +3 more
doaj +1 more source
Genetics Selection Evolution, 2000 Genetic parameters of body weight at 4 (W4 w), 8 (W8 w) and 22 (W22 w) weeks of age, days from 20 to 100 kg (DT), average backfat thickness at 100 kg (ABT), teat number (TEAT), number of good teats (GTEAT), total number of piglets born (TNB), born alive (
Legault Christian +4 more
doaj +1 more source
Variabilidade genética em clones de Eucalyptus spp. para Grajaú, estado do Maranhão. Genetic variability in clones of Eucalyptus spp. for Grajaú, state of Maranhão. [PDF]
Revista do Instituto Florestal, 2017 Esta pesquisa teve por objetivo a seleção de clones de eucaliptos em teste em Grajaú-MA, Brasil, visando ao aumento na produtividade. Os caracteres avaliados foram diâmetro à altura do peito – DAP (cm) e altura – ALT (m).
Evandro Vagner TAMBARUSS +5 more
doaj +1 more source
Genetic parameters and inbreeding effects for production traits of Thai native chickens
Asian-Australasian Journal of Animal Sciences, 2019 Objective Estimate genetic parameters, the rate of inbreeding, and the effect of inbreeding on growth and egg production traits of a Thai native chicken breed Lueng Hang Kao Kabinburi housed under intensive management under a tropical climate.
S. Tongsiri +5 more
semanticscholar +1 more source
Black bean genotypes for adaptability, stability, and productivity via mixed models for the state of Rio de Janeiro, Brazil [PDF]
Ciência Rural: The study of adaptability, stability, and productivity is essential for selecting and recommending superior genotypes. This fact is particularly the case for the introduction of common bean cultivars in Rio de Janeiro, Brazil, whose production is ...
Alexandre Gomes de Souza +13 more
doaj +1 more source