Degradation kinetics and bypassed nutrients of value added pellet products based on combination of new co-products from bio-fuel/bio-oil processing, low grade of peas and lignosulfonate chemical compound at different levels for ruminants

Abstract Text: New co-product, carinata meal, from bio-fuel processing is ready to be used as animal feed nowadays. Conventional co-product, canola meal, has high levels of methionine and cysteine, but limiting in lysine. Low grade of peas contain high starch content, also have high levels of lysine and tryptophan. There is little information available on nutrient profile, as well as degradation kinetics especially when it blends with other feedstuff as a pellet. The aim of this project was to test and develop eight high value added pellet products (BPP) based on combination of co-products from bio-fuel/bio-oil processing, low grade of peas and lignosulfonate at different levels for ruminants. Statistical analyses were performed using PROC NLIN and PROC MIXED procedures of SAS 9.4 with significance declared at P<0.05. The results showed that BPP1 (low level of carinata meal, high level of peas and no lignosulfonate), BPP2 (low level of carinata meal, high level of peas and lignosulfonate), BPP5 (low level of canola meal, high level of peas and no lignosulfonate), BPP6 (low level of canola meal, high level of peas and lignosulfonate) and BPP8 (high level of canola meal, low level of peas and lignosulfonate) had the higher rate of degradation (Kd) (P<0.05). There were no significant differences between all blend pellet products (BPP) on soluble fraction in situ  (S), insoluble but potentially degradable fraction in situ (D) and undegradable fraction in situ (U) (P>0.10). BPP3 (high level of carinata meal, low level of peas and no lignosulfonate), BPP4 (high level of carinata meal, low level of peas and lignosulfonate) and BPP7 (high level of canola meal, low level of peas and no lignosulfonate) and BPP8 had the higher rumen undregradable dry matter (BDM) (P<0.05); while BPP1, BPP2, BPP5 and BPP6 had the higher effective degradability of dry matter (EDDM) (P<0.05). In conclusion pellet products with high level of co-products had the higher rumen undegradable dry matter. Further study on intestinal digestion of nutrients is needed.

Keywords: canola, carinata, lignosulfonate.