Effect of sugar beet–pulp concentration during grain adaptation and in finishing diets with different corn processing methods on performance and carcass characteristics1
2014
Nichols, C.A. | Schneider, C.J. | Jenkins, K.H. | Erickson, G.E. | Furman, S.A. | Luebbe, M.K.
Two experiments evaluated the use of wet beet pulp (BP) in feedlot diets. In Exp. 1, feeding 0, 10, or 20% wet BP (DM basis) in either dry-rolled corn or steam-flaked corn finishing diets was evaluated using 432 steers (BW=314±25kg) in a randomized block design with a 2×3 factorial treatment structure (n=6 replications per treatment). No corn processing×BP interaction was detected (P>0.05) for finishing performance and carcass data. Final BW, DMI, and ADG decreased linearly (P<0.01) with increasing concentration of BP; however, G:F was not different (P=0.49) among BP concentrations. In Exp. 2, steers (n=232; BW=326±14.5kg) were used in a randomized block design to determine the effect of adapting steers to finishing diets using BP (n=6 replications per treatment). Alfalfa-hay inclusion decreased as dry-rolled corn increased in the control treatment. Beet-pulp adaptation diets included a low-BP treatment or a high-BP treatment in which both BP and alfalfa were decreased as dry-rolled corn increased. After the 22-d adaptation period, steers were fed a common diet until slaughter. Gain and G:F were not different (P>0.19) among treatments during grain adaptation. However, steers adapted using the high-BP and low-BP treatments tended (P=0.07) to have greater ADG compared with the control throughout the entire finishing period. In summary, there was no BP×corn processing interaction. Replacing up to 50% of alfalfa with BP during grain adaptation is a suitable alternative.
Показать больше [+] Меньше [-]Ключевые слова АГРОВОК
Библиографическая информация
Эту запись предоставил National Agricultural Library