Measurements of back fat thickness on live pigs by ultrasonics

Autor:	R. W. Widdowson, J. Taylor, E. East, I. T. Miller
Rok vydání:	1959
Předmět:	Animal science Back fat Animal Science and Zoology Biology
Zdroj:	Animal Science. 1:129-134
ISSN:	1748-748X 1357-7298
DOI:	10.1017/s0003356100033328
Popis:	The back fat thickness of 77 live pigs has been measured with an ultrasonic instrument. The method is simple to use and the ultrasonic waves do not harm the pigs. For measurement of a pig on one day, 95% of the mean ultrasonic readings are within ±13·2% of the mean measurements on the carcass.Evidence for variations between the breeds examined or between sexes is doubtful. By taking repeated measurements on a large number of days, the accuracy of the mean readings for a pig would approach the limit inherent in the method. This limit is determined by small differences between pigs and is estimated to be within ±4·2% for 95% of pigs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1a3127882640c2ae4ced0dc2679d93f1 https://doi.org/10.1017/s0003356100033328 Zobrazit plný text záznamu