Effect of the inclusion of beet pulps of different origin on the digestibility and nutritional value of diets for fattening rabbits
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Abstract
The digestibility of each of beet pulps was determined by the substitution method. There was no effect of the substitution of components of the control feed with 20 % of BP from different sources in the voluntary intake of rabbits (P> 0.05). The inclusion of BP in diets increases the digestibility of dry matter, organic matter, gross energy and all fibrous fractions, and decreases the digestibility of crude protein. However, the effect was more or less important depending on the origin of BP (P <0.05), especially
on the digestibility of all fibrous fractions, being the BP collected in summer the one with the highest digestibility. The origin of the BP also affected its nutritional value, giving values of digestible energy between 11.8 and 14.5 MJ kg DM-1 and digestible protein between 3.8 and 6.6 %.
Key words: digestibility, energy, beet pulp, Oryctolagus cuniculus
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