Fecha/hora: 16/06/2024 08:11:40

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 17/09/2014
Fecha de la última actualización: | 18/03/2022
Autoria: | CAPRA, G.; MARTÍNEZ, S.; FRADILETTI, M.; COZZANO, S.; REPISO, L.; MÁRQUEZ, R.; IBÁÑEZ, F.
Afiliación: | GUSTAVO ENRIQUE CAPRA CASSINONI, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; MARIA FLORENCIA FRADILETTI DE ASPIRTARTE, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; FACUNDO IBÁÑEZ SILVA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título: | Meat quality of rabbits reared with two different feeding strategies: With or without fresh alfalfa ad libitum.
Año de publicación: | 2013
Fuente/Imprenta: | World Rabbit Science, 2013, vol.21, no.1, p.23-32. Doi:
ISSN: | 1257-5011
DOI: | 10.4995/wrs.2013.1197
Idioma: | Inglés
Notas: | Article history: Received March 2012 / Accepted October 2012.

Contenido:

ABSTRACT.

The aim of this study was to evaluate production performance, carcass characteristics and nutritive value of meat of rabbits reared under the 2 prevailing feeding strategies iiji Uruguay. One week after weaning, 96 purebred V line rabbits were randomly distributed between 2 treatments: (T1) commercial pelleted food ad libitum and (T2) commercial pelleted food ad libitum plus fresh alfalfa ad libitum. Each treatment included 12 cages containing 4 individuals each (2 males and 2 females). Growth performance characteristics (live weight evolution, commercial food consumption and food/gain ratio) were evaluated. The consumption of alfalfa was not measured. Rabbits were slaughtered at a live weight of 2500 g and carcass characteristics were evaluated. Samples of meat and dissectible fat were analysed to determine intramuscular fat content at muscle L. dorsi, dissectible fat and intramuscular fat composition, minerals (Zn, Fe, Mg and Na), vitamin E and purines. Sensory evaluations were conducted to assess the effect of treatments on the consumer's perception of differences and the existence of attributes determining preferences. Differences between treatments were significant for total commercial food intake (23356 vs: 20930 g/cage; P<0.001) and feed conversion ratio (3.82 vs. 3.41; P<0.01) for T1 and T2 respectively. No significant differences were found in average daily gain, age at slaughter and carcass characteristics. There were no significant differences in the intramuscular fat content. The fatty acid composition of dissectible and intramuscular fat was affected by the inclusion of alfalfa in the diet increasing the linolenic acid content (1.82 vs. 3.28% and 2.29 vs. 5.15% for T1 and T2 at intramuscular and dissectible fat, respectively; P<0.001), and improving the n-6/n-3 relationship (8.60 vs. 5.82 and 11.58 vs. 5.64 for T1 and T2 at intramuscular and dissectible fat, respectively; P<0.001). There were no significant differences in vitamin E, Fe or Zn content between treatments, but differences were significant in Mg (22.5 vs. 24.4 mg/100 g for T1 and T2; P<0.05) and Na (44.1 vs. 48.2 mg/100 g; P<0.05). In the sensory evaluation, panellists significantly perceived differences between treatments with 95% confidence. 
© WRSA, UPV, 2003.

Thesagro: | CARNE DE CONEJO; MINERALES; PURINES.
Categoría del tema: | L40 Estructura animal

URL:

http://ojs.upv.es/index.php/wrs/article/view/1197/1522
http://www.ainfo.inia.uy/digital/bitstream/item/3172/1/Capra-G.-2013-WRS-v.211-p.23-32.pdf

Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (100094-1) - PXI - AP - DD - PP/WORLD RABBIT SCIENCE/2013 -  -  - DIS