Wu Huichu, Zhang Pangzhen, Zhang Fan, Shishir Md Safiqur Rahaman, Chauhan Surinder S, Rugoho Innocent, Suleria Hafiz, Zhao Guangyong, Cullen Brendan, Cheng Long
Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Victoria 3647, Australia.
Department of Animal Nutrition, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.
Animals (Basel). 2022 Jan 18;12(3):225. doi: 10.3390/ani12030225.
A 39-day field experiment was conducted to assess the effect of grape marc (GM) feeding on sheep productivity, health, and environmental sustainability. Forty merino sheep were divided into two dietary groups, each having five replications ( = 4 sheep/replication). Experimental diet consisted of: (i) control: 55% lucerne hay + 40% wheat grain + 5% faba bean; (ii) GM treatment: control diet with 20% replaced by GM on a dry matter (DM) basis. The GM treatment contained 2-10% higher phytochemical contents than the control. The DMI from the GM treatment was 15% higher than the control ( < 0.001). No difference was found in sheep live weight gain, behaviour, and quality between groups ( > 0.05). No difference was found in total faecal production, faecal organic matter, and nitrogen contents ( > 0.05) and parasitic egg count. The GM treatment led to higher nitrogen intake (23.1 vs. 27.2 g/d) and faecal nitrogen excretion (6.3 vs. 8.7 g/d) compared to the control. Urinary creatinine, allantoin, and purine derivatives were lower in the GM treatment than control ( < 0.05). However, both groups had similar purine derivatives/DMI (i.e., indicator of rumen microbial protein synthesis efficiency; > 0.05). Overall, the results showed that GM can replace 20% of the control ration to maintain sheep productivity, health, and environmental sustainability.
进行了一项为期39天的田间试验，以评估用葡萄渣（GM）喂养对绵羊生产力、健康状况和环境可持续性的影响。40只美利奴绵羊被分为两个饮食组，每组有五个重复（每组4只绵羊）。试验日粮包括：（i）对照组：55%苜蓿干草+40%小麦籽粒+5%蚕豆；（ii）GM处理组：在干物质（DM）基础上，用20%的GM替代对照组日粮。GM处理组的植物化学成分含量比对照组高2-10%。GM处理组的干物质采食量比对照组高15%（P<0.001）。两组之间在绵羊体重增加、行为和品质方面未发现差异（P>0.05）。在总粪便产量、粪便有机物和氮含量（P>0.05）以及寄生虫卵计数方面未发现差异。与对照组相比，GM处理组导致更高的氮摄入量（23.1对27.2克/天）和粪便氮排泄量（6.3对8.7克/天）。GM处理组的尿肌酐、尿囊素和嘌呤衍生物低于对照组（P<0.05）。然而，两组的嘌呤衍生物/干物质采食量相似（即瘤胃微生物蛋白质合成效率指标；P>0.05）。总体而言，结果表明GM可以替代20%的对照日粮，以维持绵羊的生产力、健康状况和环境可持续性。
