Affiliation:
1. Universidad Autónoma del Estado de México Facultad de Medicina Veterinaria y Zootecnia: Universidad Autonoma del Estado de Mexico Facultad de Medicina Veterinaria y Zootecnia
2. Colegio de Postgraduados Campus Montecillo: Colegio de Postgraduados
3. Universidad Autónoma Metropolitana - Lerma: Universidad Autonoma Metropolitana - Lerma
4. Universidad Autónoma de Baja California: Universidad Autonoma de Baja California
Abstract
Abstract
Cereals such as triticale may contain high levels of xylans and arabinoxylans, limiting its use in diets since they act as anti-nutritional factors. The objective was to evaluate the effects of the enzyme xylanase included in triticale-based diets on productive performance, digestibility, carcass traits and meat quality in growing-finishing rabbits. Eighty rabbits (New Zealand X California breed), 35 days old, with an average initial live weight of 821 ± 26 g, were used. Twenty animals for treatment were used in each one of the fourth experimental treatments: 0, 4000, 8000 and 12000 XU/kg of xylanase inclusion (XilaBlend 6X). The rabbits were fed ad libitum and fecal excretion was collected on days 7, 14, 21, 28 and 35 of the experimental period. At the end of the experimental period, the rabbits were slaughtered and carcass characteristics and meat quality were measured. A higher (P < 0.05) live weight was observed in rabbits fed diets with the addition of xylanase enzyme on days 4 and 7 of the experimental period. On the other hand, in the average total tract digestibility of organic matter, no significant difference (P > 0.05) was observed, similar to what occurred in the carcass traits and nutritional quality of the meat (P > 0.05). The inclusion of 8000 XU/kg of xylanase enzyme provided the best values of apparent digestibility of total tract protein and dry matter on the finished stage of rabbits.
Publisher
Research Square Platform LLC
Reference37 articles.
1. Effect of cowpea (Vigna Un-guiculata (L.) Walp) Stover dietary inclusion level on total tract apparent digestibility of nutrients in growing rabbits;Andrade EA;World Rabbit Science,2019
2. AOAC. Official methods of analyses. 18th ed. Gaithersburg, MD, USA: Association of Official Analytical Chemists, 2006.
3. The effi-ciency of xylanase in broiler chickens fed with increasing dietary levels of rye;Arczewska Wlosek A;Animals,2019
4. Digestibilidade aparente de dietas contendo diferentes níveis de amido para coelhos em crescimento;Arruda AMVD;Revista Brasileira de Zootecnia,2000
5. Bedford, M.R., Classen, H.L. The influence of dietary xylanase on intestinal viscosity and molecular weight distribution of carbohydrates in rye-fed broiler chick. In: Visser J, Beldman G, vanSomeren MAK, Voragen AGJ (eds). Xylans and xylanases. Amsterdam: Elsevier. 1992; 361–370.