da Teixeira Catarine S C, de Carvalho Gleidson G P, Nicory Isis C M, Santos Aracele V, Dos Pina Douglas S, de Júnior José E F, de Araújo Maria L G M L, de Rufino Luana M A, Cirne Luís G A, Pires Aureliano J V
Federal University of Bahia, Salvador, BA, 40170-100, Brazil.
Federal University of Pará, Castanhal, Pará, Brazil.
Trop Anim Health Prod. 2018 Apr;50(4):815-823. doi: 10.1007/s11250-017-1500-8. Epub 2017 Dec 21.
Two experiments were conducted to evaluate the number of days required for total fecal collection and the viability of using the indigestible dry matter (iDM), indigestible neutral detergent fiber (iNDF), and indigestible acid detergent fiber (iADF) internal markers to determine the fecal excretion of dry matter (FEDM) and digestibility in nutritional trials with small ruminants. Eight sheep in the first experiment and eight goats in the second experiment were distributed into two 4 × 4 Latin square designs. There were no significant differences between days of total fecal collection for FEDM; digestibility of dry matter (DM), organic matter (OM), crude protein (CP), ether extract (EE), neutral detergent fiber corrected for ash and protein (NDFap), and non-fibrous carbohydrates corrected for ash and protein (NFCap); and total digestible nutrients (TDN) in both species. The results suggest that only 1 day of total collection is sufficient to obtain the FEDM and the digestibility of the nutritional components in sheep and goats. The markers are efficient in determining fecal production and digestibility in these animal species.
进行了两项试验，以评估小反刍动物营养试验中收集全部粪便所需的天数，以及使用不可消化干物质（iDM）、不可消化中性洗涤纤维（iNDF）和不可消化酸性洗涤纤维（iADF）内部标记物来测定干物质粪便排泄量（FEDM）和消化率的可行性。第一项试验用8只绵羊，第二项试验用8只山羊，均采用两个4×4拉丁方设计。在FEDM的全部粪便收集天数之间；干物质（DM）、有机物（OM）、粗蛋白（CP）、乙醚提取物（EE）、校正灰分和蛋白质后的中性洗涤纤维（NDFap）以及校正灰分和蛋白质后的非纤维碳水化合物（NFCap）的消化率；以及两个物种的总可消化养分（TDN）之间，均无显著差异。结果表明，仅1天的全部收集就足以获得绵羊和山羊的FEDM以及营养成分的消化率。这些标记物在测定这些动物物种的粪便产量和消化率方面是有效的。
