Corassa Anderson, Straub Igor Willian Wrobel, Sbardella Maicon, Ton Ana Paula Silva, Kiefer Charles, Brito Claudson Oliveira, Rothmund Vivian Luana, Freitas Leonardo Willian
Agrarian and Environmental Sciences Institute, Federal University of Mato Grosso, Sinop 78.550-000, MT, Brazil.
Veterinary and Animal Science Department, Federal University of Mato Grosso do Sul, Campo Grande 79.070-900, MS, Brazil.
Animals (Basel). 2024 Jul 19;14(14):2108. doi: 10.3390/ani14142108.
This study aimed to determine the values of net energy (NE), digestible energy (DE) and metabolizable energy (ME) and digestibility coefficients of corn ethanol coproducts produced in Brazil and their effects on the nitrogen balance and blood parameters of pigs. Ten barrows were housed in metabolic study cages for total collection and fed a reference diet (RD) or 800 g/kg RD + 200 g/kg of a coproduct of corn ethanol. Distiller's dried grains with solubles (DDGS), corn bran with solubles (CBS), distiller's dried grains (DDG) and high-protein distiller's dried grain (HPDDG) were evaluated. The experimental design was randomized blocks with three repetitions per period, totaling six repetitions per diet. Diets containing the HPDDG had greater DE and ME than those containing CBS and DDGS and greater DE than those containing the DDG ( < 0.05). HPDDG, DDG, CBS and DDGS showed 4498, 3419, 3029 and 3335 kcal/kg DE; 4366, 3305, 2934 and 3214 kcal/kg ME; and 2515, 1938, 1649 and 1725 kcal/kg NE, respectively. Pigs fed diets containing HPDDG and CBS showed greater nitrogen retention efficiency than pigs fed DDGS ( < 0.05). Pigs fed diets containing HPDDG had higher blood urea levels than pigs fed CBS and RD, while triglyceride levels in animals that received the CBS diet were greater than those in animals that received all other diets. The HPDDG had the highest energy levels and the best digestibility coefficients. The chemical composition of coproducts influences the nitrogen balance and circulating levels of urea and triglycerides in pigs.
本研究旨在测定巴西生产的玉米乙醇副产品的净能（NE）、消化能（DE）和代谢能（ME）值以及消化率系数，及其对猪氮平衡和血液参数的影响。将10头公猪饲养在代谢研究笼中进行全收粪收尿试验，分别饲喂对照日粮（RD）或800 g/kg RD + 200 g/kg玉米乙醇副产品。对玉米干酒糟及其可溶物（DDGS）、含可溶物的玉米麸皮（CBS）、玉米干酒糟（DDG）和高蛋白玉米干酒糟（HPDDG）进行了评估。试验设计为随机区组，每个时期重复3次，每种日粮共6次重复。含HPDDG的日粮比含CBS和DDGS的日粮具有更高的DE和ME，且比含DDG的日粮具有更高的DE（P<0.05）。HPDDG、DDG、CBS和DDGS的DE分别为4498、3419、3029和3335 kcal/kg；ME分别为4366、3305、2934和3214 kcal/kg；NE分别为2515、1938、1649和1725 kcal/kg。饲喂含HPDDG和CBS日粮的猪比饲喂DDGS日粮的猪具有更高的氮保留效率（P<0.05）。饲喂含HPDDG日粮的猪的血尿素水平高于饲喂CBS和RD日粮的猪，而采食CBS日粮的动物的甘油三酯水平高于采食所有其他日粮的动物。HPDDG具有最高的能量水平和最佳的消化率系数。副产品的化学成分影响猪的氮平衡以及尿素和甘油三酯的循环水平。
