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Effects of feeding lambs fresh versus dried Puccinellia tenuiflora (Griesb.) Scribn. & Merr. on water and nutrient intake and apparent digestibility
Grassland Science ( IF 1.3 ) Pub Date : 2021-01-21 , DOI: 10.1111/grs.12321
Rongzhen Zhong 1 , Long Cheng 2 , Yi Fang 1 , Zelin Li 2 , Vida Lamptey 3 , Daowei Zhou 1
Affiliation  

The objective was to investigate effects of feeding lambs fresh versus dried Puccinellia. tenuiflora (Griesb.) Scribn. & Merr. on nutrient and water intake and apparent digestibility. Twenty-four lambs were offered fresh or dried (48 hr) grass. The dry matter (DM) content of fresh grass was 65% of dried grass and the neutral detergent fiber exclude ash (aNDFom) content of fresh grass was 87% of dried grass, whereas the metabolizable energy concentration of two forages was similar. Lambs eating fresh grass had higher (p < .05) DM intake (944 versus 837 g DM day−1 sheep−1), metabolizable energy intake (9.1 versus 7.9 MJ day-1sheep−1), and crude protein intake (86 versus 75 g day-1 sheep−1) than those eating dried grass. However, there was no significant difference between treatments in drinking water intake, fecal nutrient output or nutrient digestibility. In conclusion, feeding lambs fresh P. tenuiflora improved voluntary feed intake without depressing nutrient digestibility.

中文翻译:

喂养新鲜羔羊与干燥 Puccinellia tenuiflora (Griesb.) Scribn 的影响。&梅尔。水和营养摄入量和表观消化率

目的是研究喂养新鲜羊羔与干燥Puccinellia 的效果。tenuiflora (Griesb.) Scribn。&梅尔。对营养和水分摄入以及表观消化率的影响。为 24 只羔羊提供新鲜或干草(48 小时)。鲜草的干物质 (DM) 含量为干草的 65%,中性洗涤纤维不含灰分 (aNDFom) 的含量为干草的 87%,而两种草料的代谢能浓度相似。吃新鲜草的羔羊具有更高的 ( p  < .05) DM 摄入量(944 与 837 g DM 天-1绵羊-1)、可代谢能量摄入量(9.1 与 7.9 MJ 天-1绵羊-1)和粗蛋​​白摄入量(86与每天 75 克相比-1只羊-1 ) 比那些吃干草的羊。然而,在饮用水摄入量、粪便养分输出或养分消化率方面,处理之间没有显着差异。总之,给羔羊喂食新鲜的P. tenuiflora提高了自愿采食量,而不会降低营养物质的消化率。
更新日期:2021-01-21
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