Department of Animal Sciences, University of Illinois, Urbana, IL 61801, USA.
J Anim Sci. 2013 Jul;91(7):3220-30. doi: 10.2527/jas.2013-6269.
Two experiments were conducted to determine the concentration of DE and ME and the standardized ileal digestibility (SID) of AA in chicken meal, poultry byproduct meal, hydrolyzed porcine intestines, a spent hen-soybean meal (SBM) mixture, and conventional SBM fed to weanling pigs. In Exp. 1, 48 barrows (initial BW: 14.6 ± 2.2 kg) were placed in metabolism cages and allotted to 6 diets with 8 replicate pigs per diet in a randomized complete block design. Six corn-based diets were formulated. The basal diet contained 98.1% corn (as-fed basis) and 5 diets contained corn and 11 to 16% chicken meal, poultry byproduct meal, hydrolyzed porcine intestines, spent hen-SBM mixture, or SBM. All test ingredients were included in their respective diets at levels that were expected to result in similar concentrations of CP among diets. Feces and urine were collected for 5 d. The ME was 3,957, 3,816, 4,586, 4,298, 4,255, and 4,091 kcal/kg DM for corn, chicken meal, poultry byproduct meal, hydrolyzed porcine intestines, the spent hen-SBM mixture, and SBM, respectively. The ME in poultry byproduct meal was greater (P < 0.01) than in corn, chicken meal, the spent hen-SBM mixture, and SBM, and the ME in hydrolyzed porcine intestines and the spent hen-SBM mixture was greater (P < 0.01) than in corn and chicken meal, but there was no difference among hydrolyzed porcine intestines, the spent hen-SBM mixture, and SBM. In Exp. 2, 12 barrows (initial BW: 12.2 ± 1.5 kg) were equipped with a T-cannula in the ileum and allotted to a replicated 6 × 6 Latin square design. A N-free diet and a cornstarch-SBM based diet were formulated. Four additional diets were formulated by mixing cornstarch, sucrose, and SBM with chicken meal, poultry byproduct meal, hydrolyzed porcine intestines, or the spent hen-SBM mixture. The SID of CP and all AA, except Trp and Pro, was greater (P < 0.01) in SBM than in all other ingredients. The SID of CP and all indispensable AA in the spent hen-SBM mixture was also greater (P < 0.01) than in chicken meal and hydrolyzed porcine intestines, and with the exception of Arg and Val, SID values of all indispensable AA in the spent hen-SBM mixture were greater than in poultry byproduct meal. However, with the exception of Val and Lys, there were no differences between chicken meal and poultry byproduct meal. In conclusion, the ME in hydrolyzed porcine intestines and the spent hen-SBM mixture is greater than in chicken meal, but not different from the ME of SBM. Poultry by product meal provides more ME than SBM, chicken meal, and the spent hen-SBM mixture, and the SID of most indispensable AA is greater in the spent hen-SBM mixture than in chicken meal, poultry byproduct meal, and hydrolyzed porcine intestines, but less than in SBM.
进行了两项实验，以确定鸡肉粉、禽副产品粉、水解猪肠、用过的母鸡-豆粕混合物和常规豆粕在断奶仔猪中 DE 和 ME 的浓度以及 AA 的标准回肠可消化率（SID）。在实验 1 中，将 48 头阉公猪（初始 BW：14.6±2.2kg）放入代谢笼中，并按照随机完全区组设计，将其分配到 6 种日粮中，每种日粮有 8 个重复猪。配制了 6 种基于玉米的日粮。基础日粮含有 98.1%的玉米（实测基础），5 种日粮含有玉米和 11-16%的鸡肉粉、禽副产品粉、水解猪肠、用过的母鸡-豆粕混合物或豆粕。所有测试成分均以预期在日粮中产生类似 CP 浓度的水平包含在各自的日粮中。收集了 5 天的粪便和尿液。玉米、鸡肉粉、禽副产品粉、水解猪肠、用过的母鸡-豆粕混合物和豆粕的 ME 分别为 3957、3816、4586、4298、4255 和 4091kcal/kg DM。禽副产品粉的 ME 大于（P<0.01）玉米、鸡肉粉、用过的母鸡-豆粕混合物和豆粕，水解猪肠和用过的母鸡-豆粕混合物的 ME 大于（P<0.01）玉米和鸡肉粉，但水解猪肠、用过的母鸡-豆粕混合物和豆粕之间没有差异。在实验 2 中，将 12 头阉公猪（初始 BW：12.2±1.5kg）在回肠中配备 T 型管，并按照复制的 6×6 拉丁方设计进行分配。配制了无氮日粮和以玉米淀粉-豆粕为基础的日粮。通过将玉米淀粉、蔗糖和豆粕与鸡肉粉、禽副产品粉、水解猪肠或用过的母鸡-豆粕混合物混合，配制了另外 4 种日粮。除了 Trp 和 Pro 外，豆粕中 CP 和所有 AA 的 SID 均大于（P<0.01）所有其他成分。用过的母鸡-豆粕混合物中 CP 和所有必需 AA 的 SID 也大于（P<0.01）鸡肉粉和水解猪肠，除 Arg 和 Val 外，用过的母鸡-豆粕混合物中所有必需 AA 的 SID 值均大于禽副产品粉。然而，除了 Val 和 Lys 之外，鸡肉粉和禽副产品粉之间没有差异。总之，水解猪肠和用过的母鸡-豆粕混合物的 ME 大于鸡肉粉，但与豆粕的 ME 没有差异。禽副产品粉提供的 ME 多于豆粕、鸡肉粉和用过的母鸡-豆粕混合物，用过的母鸡-豆粕混合物中大多数必需 AA 的 SID 大于鸡肉粉、禽副产品粉和水解猪肠，但小于豆粕。
