Assessment of nutritional value of Caraway-Seed Pulp for feeding holstein dairy cattle

Abstract

A study was made to evaluate the nutritional value of the Caraway-Seed Pulp (CSP) in concentrate component of the diet on the performance and blood metabolite of lactating Holstein cattle. Eight Holstein cattle (mean 40 days after calving) were allocated in 4 treatments based on Latin square design experiment. The treatments offered to animals were different levels of CSP, which substituted by Wheat Bran (WB) in concentrate by the following order: 0.0% CSP(100% WB-0.0% CSP as a control group); 33.3% CSP (66.7% WB, 33.3% CSP); 66.6% CSP (33.3% CSP+66.6% WB) and 100% CSP (0.0% WB+100% CSP). Nutrient composition in CSP based of DM were DM-37.6%, Protem-15.2%, fat-6%, NDF-55%, ADF-51% and Ash-14.5%. Overall feed intake was not statistically differ between treatments, however numerical improvement was observed in treatment 100% CSP compared to others although, the differences was not significant (p>0.05). The milk production and its composition results for all treatment was not significantly different (p>0.05). However, trend was to improve in milk fat by increasing CSP levels in diet with higher rate for treatment 100% CSP. Results obtained from blood metabolite analysis indicated that concentration of glucose was higher in treatment 0.0% CSP (control) compared to others, also, serum concentrate of SGOT and SGPT trended to increase by substitution of CSP indiet(p<0.05). Rumen N-NH3 andpH was not affected by any treatments. Obtain data from this study indicated that substitution of WB by CSP had not adverse effects on dairy cattle health and performance. © Medwell Journals, 2010.