Haydon K D, Hobbs S E
College of Agric. Coastal Plain Sta., Dept. of Anim. Sci., University of Georgia, Tifton 31793-0748.
J Anim Sci. 1991 Feb;69(2):719-25. doi: 10.2527/1991.692719x.
A replicated 4 x 4 Latin square digestion trial was conducted to determine apparent nutrient digestibilities and N and energy balances for soft red winter wheat, Beagle 82 triticale, Florico triticale, and pearl millet using finishing pigs fitted with ileal T-cannulas. Fortified experimental diets contained 97.5% of each respective grain. Nitrogen and amino acid digestibilities of soft winter wheat and triticale were similar (P greater than .13) when measured near the end of the small intestine and over the total digestive tract. Ileal digestibilities of alanine, isoleucine, leucine, threonine, tryptophan, and valine were higher (P less than .05) for pearl millet than for the other grains. Total tract N and amino acid digestibilities were all higher than ileal digestibilities. Gross energy and DM digestibilities determined at the small intestine were higher (P less than .05) for wheat and pearl millet than for Beagle 82 triticale, with the Florico variety being intermediate in energy digestibility. Total tract digestible and ME concentrations followed essentially the same pattern as ileal GE digestibility and were 2 to 3% higher (P less than .05) for wheat and pearl millet than Beagle 82 triticale. Florico triticale had similar (P greater than .05) DE but was 1.3% lower (P less than .05) in ME content than wheat.
进行了一项重复的4×4拉丁方消化试验，以确定使用安装有回肠T型套管的育肥猪对软红冬小麦、比格82小黑麦、弗洛里科小黑麦和珍珠粟的表观养分消化率以及氮和能量平衡。强化试验日粮含有每种谷物的97.5%。在小肠末端附近和整个消化道进行测量时，软冬小麦和小黑麦的氮和氨基酸消化率相似（P大于0.13）。珍珠粟的丙氨酸、异亮氨酸、亮氨酸、苏氨酸、色氨酸和缬氨酸的回肠消化率高于其他谷物（P小于0.05）。全消化道氮和氨基酸消化率均高于回肠消化率。小麦和珍珠粟在小肠测定的总能和干物质消化率高于比格82小黑麦（P小于0.05），弗洛里科品种的能量消化率介于两者之间。全消化道可消化能和代谢能浓度的变化趋势与回肠总能消化率基本相同，小麦和珍珠粟的全消化道可消化能和代谢能浓度比格82小黑麦高2%至3%（P小于0.05）。弗洛里科小黑麦的消化能与小麦相似（P大于0.05），但代谢能含量比小麦低1.3%（P小于0.05）。
