NDLI: Genetic parameters for carcass traits and body size in sheep for meat production

Content Provider	Springer Nature Link
Author	Figueiredo Filho, Luiz Antonio Silva Do Ó, Alan Oliveira Sarmento, José Lindenberg Rocha Santos, Natanael Pereira Da Silva Torres, Tatiana Saraiva
Copyright Year	2015
Abstract	The aim was to estimate the covariance components and genetic parameters of carcass traits and body size of meat sheep by employing animal models for single and multi-trait analyses. Data were collected from herds of adult Santa Ines sheep. The ribeye area, subcutaneous fat thickness, and rump fat thickness, evaluated in vivo by ultrasound images of the carcass; and morphometric traits: fat depth, rump height, chest circumference, chest depth, body length, and rump length were measured. The covariance components and genetic parameters for these traits were estimated by restricted maximum likelihood methodology, considering the random additive direct-genetic effects of the animal and errors associated with each observation, and the fixed effects of the contemporary group, the type of birth, and the age of the animal classes. Heritability estimates for carcass traits and animal size were higher in the three-trait analyses than in the single-trait analyses. The magnitudes of the values obtained indicate that genetic progress can be achieved by selection based on the traits studied.
Starting Page	215
Ending Page	218
Page Count	4
File Format	PDF
ISSN	00494747
Journal	Tropical Animal Health and Production
Volume Number	48
Issue Number	1
e-ISSN	15737438
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-10-13
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Animal model Meat sheep production Genetic parameters Ultrasonography Zoology Veterinary Medicine
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology Food Animals

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