Processing cottonseed to moderate fatty acid metabolism and improve milk production by dairy cows
Advisor:Firkins, Jeffrey L.
Contributors:Ribeiro, Claudio V. D. M.
Eastridge, Maurice L.
St-Pierre, Normand R.
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Series/Report no.:Interdisciplinary Ph.D. Program in Nutrition - OSUN. Graduate student poster competition, 2006
Whole cottonseed is commonly added to dairy diets to provide energy, protein, and as a partial substitute for forage. For some feeding situations, however, handling problems limit their feasibility for use. Although pelleting and delinting processes overcome these problems, rapid release of free oil or lower total tract digestibility, respectively, can decrease their efficacy. In our study, a mix of pelleted and delinted cottonseed appeared to modify ruminal fatty acid metabolism, decreasing the risk of milk fat depression; dry matter intake and milk production tended to increase with time compared with conventional or pelleted cottonseeds. However, pelleting through a larger die appeared to provide no benefit.
Buckeye Technologies, Memphis, TN and Cotton Inc., Cary, NC.