Arquivo Brasileiro de Medicina Veterinária e Zootecnia
On-line version ISSN 1678-4162
SANTOS, V.C. et al. Influence byproducts of oleaginous on ruminal parameters and degradation of dry matter and crude protein. Arq. Bras. Med. Vet. Zootec. [online]. 2012, vol.64, n.5, pp.1284-1291. ISSN 1678-4162. http://dx.doi.org/10.1590/S0102-09352012000500028.
The aim of this work was to evaluate the introduction of oleaginous byproducts in sheep feeding as a replacement for soybean meal. Four sheep weighing 40kg, with cannulated rumen were selected in a Latin Square (4x4) design, with for diets and four periods analyzed by regression for ruminal degradability evaluate, pH values and ammonia nitrogen concentration in vivo. Byproducts were the following cakes: peanut, sunflower and soybean, in isonitrogenous diets with 70% concentrate and 30% roughage (tifton hay). There was no effect of diet x time interaction for pH and ruminal concentrations of ammonia nitrogen (P>0.05). The average pH value was 6.2. Ruminal concentrations of ammonia nitrogen were not affected, and had an average value of 29.9mg/dL. There were no differences (P>0.05) in DM degradation and degradability rates. The use of high degradability protein sources, such as soybean cake and peanut cake, proved to be an interesting alternative to replace soybean meal.
Keywords : degradability; oleaginous cake; pH; ruminal ammonia concentration.