Abstract
The effect of diets with nonconventional forage resources, balu (Erythrina edulis) and giant taro (Alocasia macrorrhiza) was evaluated, on production parameters of New Zealand white rabbits (Oryctolagus cuniculus) under family farming production, in Silvania (Cundinamarca, Colombia). 36 weaned rabbits of 35 days old were used. They were distributed in 4 treatments (substitution of commercial pellets by giant taro leaves flour 25% (Giant taro), balu 25% (Balu); their mixture, giant taro 12.5% and balu 12.5% (GB), and a control with commercial pellets) with three repetitions each. Variables evaluated: initial weight at 35 days old, daily weight gain, consumption, feed conversion and final weight at 85 days old, carcass yield, haunch, loin and meat. Data was analyzed by Tukey multiple comparison test at 5% significance level, variance homogeneity and error independence verified by means of Shapiro-Wilks, Levene and Durbin-Watson tests, respectively, by R program. No significant differences were found in the final weight, on weeks 5 and 6, which registered significant differences (p<0.05), for giant taro (1771.85±88.21 AB), control (1933.06±88.20 B), giant taro (1935.05±91.26 AB), control (2144.42±91.26 B) respectively. Daily weight gain showed significant differences (p<0.05) at week 5 for giant taro (33.56±2.82 AB); control (.37±2.825 B). Significant differences were showed by most zootechnical variables (p<0.05). The results showed that diets with nonconventional forage resources (balu and giant taro) are a viable alternative for animal feeding, due to their high nutritional content and as a by-product of commercial interest for rural families in areas of the middle Colombian tropics.
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