BEER RESIDUE IN DIETS FOR GROWING RABBITS
Keywords:
Histopathology, acute kidney injury, congenital nephropathyAbstract
Conventional foodstuffs like alfalfa hay have high cost, mainly in developing countries. Due to that there has been a search for unconventional low-cost local ingredients. The purpose for this research was to evaluate performance and dry matter digestibility (DMD) of growing rabbits which were fed diets containing different levels of beer residue (BR) as a substitute for alfalfa hay. Thirty New Zealand rabbits were weaned at 35 days, weighing 650g, andassignedin a completely randomized experimental design to one of the following diets: 0BR - control diet without inclusion of BR; 25BR - diet with 25% of BR as asubstitutefor alfalfa hay; 50BR - diet with 50% of BR as a substitute for alfalfa hay. The experimental period comprised 42 days. For five days, stool was collected in order to obtain the DMD of the ration. Means were compared statistically by Analysis of Variance of Means and Tukey Test (p<0.05). None of the studied parameters presented differences by the statistical methods used, except for feed consumption in initial phase (from 35 to 56 days) (p=0.001); feed consumption in the final phase (from 56 to 77 days) (p=0.04); and overall performance (p=0.01) that was reduced linearly with the inclusion of BR. It was concluded, based on feed conversion, that it is possible to use up to 50% of BR as a substitute foralfalfa hay in diets for growing rabbits.
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