Bezerra Higor Fábio Carvalho, Santos Edson Mauro, de Carvalho Gleidson Giordano Pinto, de Oliveira Juliana Silva, de Moura Zanine Anderson, Pinho Ricardo Martins Araujo, de Araújo Maria Leonor Garcia Melo Lopes, Perazzo Alexandre Fernandes, Ferreira Daniele de Jesus
Department of Animal Science Federal University of Paraíba Joao Pessoa Brazil.
Department of Animal Science Federal University of Bahia Salvador Brazil.
Food Sci Nutr. 2022 Mar 24;10(7):2312-2317. doi: 10.1002/fsn3.2839. eCollection 2022 Jul.
This study assessed the effects of four levels of crude glycerin (0, 50, 100, and 150 g/kg dry matter (DM) basis) in the diet of Boer crossbred goat kids on the qualitative and quantitative carcass characteristics as well as meat quality. Thirty-two crossbred, castrated Boer x undefined breed goat kids with an initial average weight of 17.8 ± 2.2 kg between 3 and 4 months of age were distributed across a complete randomized experiment with four treatments and eight replicates. The DM intake linearly decreased ( < .05) as the crude glycerin inclusion level in the diet increased. Crude glycerin levels decreased (linear effect, < .05) empty body weight, hot dressing percentage, and cold dressing percentage. Conformation and subcutaneous fat thickness were not affected ( > .05) by dietary crude glycerin. Crude glycerin levels decreased (linear effect, = .03) rib eye area of the muscle, however, did not affect color, cooking loss, and shear force. The crude glycerin can be included up to 50 g/kg DM in the diet of crossbred Boer goats without negatively affecting carcass characteristics and meat quality. It can be recommended as an energy source in finishing diets.
本研究评估了在波尔杂交山羊羔日粮中添加四个水平的粗甘油（基于干物质（DM）分别为0、50、100和150 g/kg）对胴体品质和肉质的定性及定量特征的影响。32只3至4月龄的杂交去势波尔山羊羔，初始平均体重为17.8±2.2 kg，被分配到一个完全随机试验中，该试验有四种处理，每种处理八个重复。随着日粮中粗甘油添加水平的增加，干物质摄入量呈线性下降（P<0.05）。粗甘油水平降低了（线性效应，P<0.05）空腹体重、热胴体率和冷胴体率。日粮粗甘油对羊的体型和皮下脂肪厚度没有影响（P>0.05）。粗甘油水平降低了（线性效应，P = 0.03）肌肉的眼肌面积，然而，对肉的颜色、烹饪损失和剪切力没有影响。在杂交波尔山羊日粮中，粗甘油的添加量可高达50 g/kg DM，而不会对胴体品质和肉质产生负面影响。它可被推荐作为育肥日粮中的能量来源。
