reproduction traits
Genetic Parameters and Genetic Gain for the Reproduction Traits in Latvian Landrace and Yorkshire Sows Populations
... the reproduction traits of Landrace and Yorkshire sows and to analyze the genetic gain in these Latvian swine ...of reproduction traits was low; however, during the last ten years, ...
5
Evaluation of Relationship between Traits of Milk Production and Reproduction Traits in Dairy Cows of the Slovak spotted breed
... between traits of milk production and reproduction traits in breeding herds of Slovak spotted breed in the period 1992-2010 the results for 10 514 Slovak ...evaluated traits of milk production ...
6
Evaluation of Reproduction Traits in Selected Breeding Herds of Slovak Simmental Dairy Cows by Breeding Type
... basic traits of reproduction traits (DFS, DO, NIC, CI) in dairy cows Slovak Simmental cattle were ...evaluated reproduction traits were lower positive and statistically high ...
5
Analysis of Relationship between Production and Reproduction Traits of Holstein Cattle Population in the Slovak Republic
... Is generally known there is antagonistic relationship between production and reproduction traits. In most countries and for many years, the primary selection objective in dairy cattle breeding was oriented ...
5
The Assessment of Genetic Diversity and Analysis Production and Reproduction traits in difference breeding type of Slovak Simmental cattle.
... The average age at first calving was greater than 30 months and also the average length calving interval was more than 400 days. These results are in conflict with the recommendations of Pšenica et al. [16] and Havrila ...
5
A relationship between production and reproduction traits in cows of Czech Pied cattle
... The relation between the level of the mother’s breeding value for kg of milk and the reproduc- tion of her daughters is presented in Table 4. The length of the cows’ days open a�er the 1st calving ranged from 96.29 days ...
6
Genetic parameters for a joint genetic evaluation of production and reproduction traits in pigs
... program was written. The principles for forming herd-year-season classes were as follows. Herd- year-season classes were preferably formed accord- ing to natural seasons and normally had a length of three months: March ...
8
MORPHO-PRODUCTION AND REPRODUCTION TRAITS OF THE COLOUR VARIETIES BELONGING TO THE BOTOŞANI KARAKUL BREED
... adequate reproduction and selection ...morpho-production traits of sheep were mentioned, as follows: the qualitative features of lamb pelts, the body growth, the body conformation and constitution, ...
6
Single nucleotide polymorphism of the lactoferrin gene and its association with milk production and reproduction traits in Iranian Holstein cattle
... This study reports the association of LTF gene polymor- phism with some milk production and reproductive traits in Iranian Holstein cows. The LTF gene was cho- sen because of its expression in mammary glands, in- ...
6
Relationships between the incidence of health disorders and the reproduction traits of Holstein cows in the Czech Republic
... Our hypothesis is that incidences of diseases af- fect the reproduction performance of cows. The re- sults of this study indicate that there is a significant relationship between fertility or health disorders and ...
9
The influence of multiple births on subsequent production and reproduction traits in Holstein cattle
... The aim of this study was to evaluate production and reproduction parameters a er the birth of twins in holstein cattle (H = 100 %). Evaluation was made in terms of days open (the period between calving and ...
6
Genetic parameters for reproduction traits in sows of lines selected for growth rate on restricted feeding
... Wadel ISchool of Veterinary Science, The University of Queensland QLD 4072, Australia 2Animal Research Institute, Queensland Department of Primary Industries SUMMARY Genetic parameters f[r] ...
5
GENETIC DETERMINISM OF THE REPRODUCTION TRAITS IN A PLYMOUTH ROCK LINE
... studied traits was below 0.2 in four traits (age at first egg, body weight, eggs produced during the control period, laying percentage during the control period); only egg weight having a higher ...
5
Genetic Parameters for Reproduction Traits of Prolificacy and Conventional Purebred Sows
... that reproduction belong to low-hereditary traits regardless of the level of genetic potential and significantly larger litters than the conventional selection of these breeds in our ...
5
Production and Reproduction Efficiency in Turcana and Ratca Sheep Breeds
... and reproduction traits were evaluated for the two breeds, managed under identical conditions: milk yield, evaluated since the lambs weaning until the end of lactation, following ICAR rules; conception ...
5
The Analysis of Reproduction in Population of the Slovak Spotted Dairy Cows
... the reproduction and factors affecting on reproduction traits of dairy cows in population of Slovak Spotted cattle from 2007 to 2016 the results for 37,274 dairy cows: days to first service (DFS), ...
8
The Role of Conformational Traits on Dairy Cattle Production and Their Longevities
... tion traits. Generally, conformation traits are important in dairy cattle ...These traits are used for selection of animals through creating the predict equation based on the independent varia- ble ...
9
Life-history traits in an evergreen Mediterranean oak respond differentially to previous experimental environments
... We aim to analyse the responses of several life-history traits of the slow-growing, evergreen Mediterranean oak Quercus ilex subsp. rotundifolia (Fagaceae) to previous envi- ronments in experimental plots. ...
10
Selection index for bulls of Holstein cattle in the Czech Republic
... The proportion of meat production in selection effect is generally low, and no sufficient data for direct selection are available in performance test- ing. Necessary data for direct selection for health are also missing ...
13
Trait modality distribution of aquatic macrofauna communities as explained by pesticides and water chemistry
... phosphate contributed significantly to the variance in trait modality distribution of all traits for which significant correlations with explanatory variables were found (Fig. 1). At most of the study sites ...
11