Study on Growth Curves of Muscle Area, Backfat Thickness and Body Conformation for Hanwoo (Korean Native) Cows
| Autor: | J. H. Lee, S.-H. Oh, Y. M. Lee, Y. S. Kim, H. J. Son, D. J. Jeong, N. C. Whitley, J. J. Kim |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Asian-Australasian Journal of Animal Sciences, Vol 27, Iss 9, Pp 1250-1253 (2014) |
| Druh dokumentu: | article |
| ISSN: | 1011-2367 1976-5517 |
| DOI: | 10.5713/ajas.2013.13797 |
| Popis: | The objective of this study was to estimate the parameters of Gompertz growth curves with the measurements of body conformation, real-time ultrasound longissimus dorsi muscle area (LMA) and backfat thickness (BFT) in Hanwoo cows. The Hanwoo cows (n = 3,373) were born in 97 Hanwoo commercial farms in the 17 cities or counties of Gyeongbuk province, Korea, between 2000 and 2007. A total of 5,504 ultrasound measurements were collected for the cows at the age of 13 to 165 months in 2007 and 2008. Wither height (HW), rump height (HR), the horizontal distance between the top of the hips (WH), and girth of chest (GC) were also measured. Analysis of variance was conducted to investigate variables affecting LMA and BFT. The effect of farm nested in location was included in the statistical model, as well as the effects of HW, HR, WH, and GC as covariates. All of the effects were significant in the analysis of variance for LMA and BFT (p |
| Databáze: | Directory of Open Access Journals |
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