Výsledky vyhledávání - "korelace"

Estimation of Genetic and Phenotypic Parameters for Udder Morphology Traits in Different Dairy Sheep Genotypes

Knowledge of genetic parameters is the basis of sound livestock improvement programmes. Genetic parameters have been estimated for linear udder traits: Udder depth (UD), Cistern depth (CD), Teat …

Nejdůležitější změny v DAC výpočtu k dubnu 2016. II. díl

Fenologická a aerobiologická analýza vlivu meteorologických podmínek na pylovou sezónu břízy bělokoré = Phenological and aerobiological analysis of impact of meteorological conditi...

Pollen allergy is a serious problem worldwide, estimated to affect, in Europe alone, up to 40% of the population. Pollen allergies are linked to the period of flowering plants. Phenology and …

Phenotypic correlations between reproductive characteristics related to litter and reproductive cycle length in sows

Correlation coefficients between the traits related to litter size from one side and reproductive cycle length from the other were low and mostly statistically non-significant, suggesting that …

Možnosti faremního monitorování kolostrální imunity telat pomocí univerzálního refraktometru = Possibilities of farm monitoring of colostral immunity in calves newly and by means o...

Association between dilated cardiomyopathy and hypothyroidism in dogs

It is a known fact that thyroid hormones have an influence on the heart function. Opinions on hypothyroidism and its effect on dilated cardiomyopathy (DCM) development are controversial and often …

Možnosti šlechtění na lepší přežitelnost selat

Zahrnutí přímých ukazatelů zdraví do selekčního indexu

Covariance components by a repeatability model in Slovenian dairy sheep using test-day records

The estimation of covariance components for daily milk yield, fat and protein content was performed in three Slovenian dairy sheep breeds (Bovec, Improved Bovec, and Istrian Pramenka). In the period …

Locomotor activity and daily milk yield of dairy cows during the perioestrous period in successive lactations

The experiment was conducted in a herd of high-producing Holstein-Friesian cows, using the AfiFarm Herd Management Software, to analyze their locomotor activity during 236 oestruses in relation to the …

Analyses of genetic relationships between linear type traits, fat-to-protein ratio, milk production traits, and somatic cell count in first-parity Czech Holstein cows

Genetic and phenotypic correlations between production traits, selected linear type traits, and somatic cell score were estimated. The results could be useful for breeding programs involving Czech …

Nové trendy v tlumení mastitid za pomoci šlechtění

Understanding the role of ecotypic factors in the early growth of Pinus sylvestris L.

The ecological significance of Scots pine (Pinus sylvestris L.) in Europe, especially in areas devastated by bark beetles, has led to its consideration as a substitute for Norway spruce. This …

Faktory ovlivňující obsah mastných kyselin v mléčném tuku dojnic

Analysis of Czech cold-blooded horses: genetic parameters, breeding value and the influence of inbreeding depression on linear description of conformation and type characters

Genetic parameters, breeding values and inbreeding depression for 22 linear type description of conformation and type characters and 4 body measurements were evaluated in a group of 1744 horses of …

Šlechtitelské apekty plodnosti

Genetic relationship between milk dry matter and other milk traits in extended lactations of Polish Holstein cows

The objective of this research was to examine heritabilities and genetic, phenotypic and permanent environmental relationships between milk dry matter (DM) and milk traits such as milk, fat, protein …

Genetic parameters of test-day somatic cell scores for the first three lactations of Polish Holstein-Friesian cattle

Genetic parameters for somatic cell score in the first three lactations of Polish Holstein-Friesian cattle were estimated. A multiple-lactation model was applied with random herd-test-day effect, …

Testing different single nucleotide polymorphism selection strategies for prediction of genomic breeding values in dairy cattle based on low density panels

In human and animal genetics dense single nucleotide polymorphism (SNP) panels are widely used to describe genetic variation. In particular genomic selection in dairy cattle has become a routinely …

Zkušenosti se šlechtěním na efektivnost příjmu krmiva v Austrálii