Original scientific paper
https://doi.org/10.5513/JCEA01/16.1.1546
The influence of controlled nutrition intensity on the muscle fiber characteristics in fattening pigs
Luboš BRZOBOHATÝ
; Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural Resources,Department of Animal Husbandry, Kamýcká 129, 165 21 Praha 6 – Suchdol, Czech Republic
Roman STUPKA
Jaroslav ČÍTEK
Michal ŠPRYSL
Monika OKROUHLÁ
Karel VEHOVSKÝ
Abstract
The aim of this study was to evaluate the influence of controlled nutrition on the selected muscle fibres indicators and carcass value in pork. The test included 72 hybrid pigs of the D x (LWD x L) genotype of a balanced sex (barrows/gilts). Animals were divided into two groups; the 1st (control) group was fed ad libitum, while the nutrition of the 2nd (experimental) group was restricted upon reaching 80 kg of live weight. The nutritional restriction was achieved by feeding the animals with maximum dose of CFM up to 2.8 kg*day-1 (corresponding to 36.4 MJ ME*day-1, 46.76 g NS*day-1 and 23.52 g LYS*day-1). From the obtained results it is evident that the daily feed intake restriction corresponds with greater number of the MLLT muscle fibers as well as with a higher IIB type muscle fibers share, higher lean meat share and a higher shoulder proportion in the carcass.
Keywords
carcass value; food technology; muscle fibre; pig
Hrčak ID:
141305
URI
Publication date:
15.3.2015.
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