Effects of animal type (wild vs. domestic) and diet alfalfa level on intake and digestibility of European adult rabbits (Oryctolagus cuniculus).

Autor: Pinheiro V; Animal and Veterinary Research Center (CECAV), Vila Real, Portugal.; Department of Animal Science, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal., Outor-Monteiro D; Animal and Veterinary Research Center (CECAV), Vila Real, Portugal.; Department of Animal Science, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal., Mourão JL; Animal and Veterinary Research Center (CECAV), Vila Real, Portugal.; Department of Animal Science, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal., Cone JW; Animal and Veterinary Research Center (CECAV), Vila Real, Portugal.; Animal Nutrition Group, Wageningen University, Wageningen, The Netherlands., Lourenço AL; Animal and Veterinary Research Center (CECAV), Vila Real, Portugal.; Department of Animal Science, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
Jazyk: angličtina
Zdroj: Journal of animal physiology and animal nutrition [J Anim Physiol Anim Nutr (Berl)] 2018 Feb; Vol. 102 (1), pp. e460-e467. Date of Electronic Publication: 2017 Oct 06.
DOI: 10.1111/jpn.12774
Abstrakt: The aim of this study was to evaluate the effect of the level of alfalfa in the diet on feed intake and digestibility of two types of rabbits, wild (Oryctolagus cuniculus algirus) vs. domestic (O. cuniculus cuniculus). Ten wild (W; mean LW = 927 g) and 10 domestic (D; mean LW = 4,645 g) adult rabbit does were fed ad libitum two pelleted diets: a control diet (C) with 15% of dehydrated alfalfa hay (as feed basis) and a test diet (A) with 36% of dehydrated alfalfa hay (as feed basis), according to a change-over design. Wild does dry matter (DM) intake per kg live weight (BW) was 55% higher (p < .001) than the intake of the D ones (58 g vs. 37 g DM per kg BW respectively). However, no difference (p > .05) was found when intake was expressed per kg 0.75 BW (ca. 56 g DM) and tended to be higher (p = .07) in D does when expressed per kg 0.67 BW (62 g vs. 55 g DM). Domestic does showed a higher (p < .05) DM, organic matter, crude energy and neutral detergent fibre digestibility (3; 2; 3; 3 percentage points respectively) than W does. The amount of nutrients and energy digested by D does was lower per kg BW (p < .001), similar per kg 0.75 BW (p > .05) and tended to be higher per kg 0.67 BW (p < .1) than in W does. The diet content of alfalfa did not affect (p > .05) the feed intake nor the diet digestibility. This study suggests that W rabbits exhibit a higher intake per kg BW and a lower digestibility than their D counterparts, which results in similar digestible nutrient and energy intake per kg BW powered to 0.75. The nutritive value of dehydrated alfalfa for rabbits, evaluated through intake and digestibility, seems to be equivalent to their base diets (forage plus concentrate).
(© 2017 Blackwell Verlag GmbH.)
Databáze: MEDLINE
Externí odkaz: