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Genetic parameters for growth in Charolais calves
Čepon, Marko (Author), Simčič, Mojca (Author), Malovrh, Špela (Author)

URLURL - Presentation file, Visit http://www.dlib.si/details/URN:NBN:SI:doc-68WPBUJY This link opens in a new window

Abstract
Genetic parameters for birth weight (BW), weight at the beginning (WB), in the middle (WM), and at the end of grazing season (WE), as well as weight at the age of one year (WY) were estimated. Data were collected on 319 Charolais calves. The total number of records, including pedigree data (parents and grandparents) was 377 animals. Variance and covariance components were estimated by REML method using the VCE-5 package. The effects of sex, parity and year of birth were included in the models for all traits. Age of calves at the beginning of grazing season was included as linear regression in models for all traits except for birth weight. The age of calves in the middle, at the end of grazing season, and age at approximately one year were included as linear regression in the models for corresponding weights. Direct additive genetic effect was included in models for all traits as random effect. Estimated heritabilities for BW, WB, WM, WE and WY were 0.62+-0.06, 0.23+-0.09, 0.35+-0.08, 0.29+-0.07 and 0.23+-0.07, respectively.

Language:English
Keywords:cattle, calves, breeds, Charolais, genetic parameters, body weight, variance, heritability, genetic correlation
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Year:2008
Publisher:Biotehniška fakulteta
Number of pages:str. 111-117
Numbering:Letn. 92, št. 2
UDC:636.2
ISSN on article:1581-9175
COBISS.SI-ID:2410632 Link is opened in a new window
Views:872
Downloads:192
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Record is a part of a journal

Title:Acta agriculturae Slovenica
Shortened title:Acta agric. Slov.
Publisher:Biotehniška fakulteta
ISSN:1581-9175
COBISS.SI-ID:213840640 This link opens in a new window

Secondary language

Language:Slovenian
Title:Genetski parametri za rast pri teletih šarole pasme
Abstract:
Ocenjeni so bili genetski parametri za rojstno maso (BW), telesno maso na začetku (WB), sredini (WM) in na koncu pašne sezone (WE) ter ob starosti enega leta (WY). Podatki so bili zbrani na 319 teletih šarole pasme. Skupno število zapisov vključno s podatki o poreklu (starši in stari starši) je bilo 377 živali. Komponente varianc in kovarianc so bile ocenjene z metodo REML in uporabo VCE-5 paketa. Vplivi spola, zaporedne telitve in leta rojstva so bili vključeni v modele za vse proučevane lastnosti. Starost telet na začetku paše je bila kot linearna regresija vključena v modele za vse lastnosti razen v model za rojstno maso. Starost telet na sredini in na koncu paše ter starost ob približno enem letu pa je bila kot linearna regresija vključena v modele za pripadajoče telesne mase. Direktni aditivni genetski vpliv je bil vključen v modele za vse lastnosti kot naključni vpliv. Ocenjene heritabilitete za BW, WB, WM, WE in WY so bile 0,62+-0,06; 0,23+-0,09; 0,35+-0,08; 0,29+-0,07 in 0,23+-0,07.

Keywords:govedo, teleta, pasme, šarole, genetski parametri, telesna masa, varianca, heritabiliteta, genetska korelacija

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