Effect of Dietary Papaya (Carica Papaya L.) Peel and Paddy Straw Silages on Performance of Naturally Strongylus-Infected Priangan Sheep Before and after Anthelmintic Treatment.xlsx

Eighteen naturally strongylus-infected Priangan rams (120 ± 31.8 eggs/g faeces, mean ± SE) were assigned into a completely randomized design to compare 3 different <i>as fed</i> doses of papaya peel silage (PPS) inclusions at 0 (PPS-0), 50% (PPS-50) and 75% (PPS-75) in paddy straw silage (PSS) based diet on ram performances before and after an anthelmintic treatment using 6 replicates. During endoparasite infection in rams, dietary PPS-50 (340 ± 129 eggs/g faeces) and PPS-75 (225 ± 44.5 eggs/g faeces) could keep faecal egg counts <i>Strongylus sp.</i> in mild infection category (&lt; 500 eggs/g faeces) compared with dietary PPS-0 (565 ± 238 eggs/g faeces). After anthelmintic treatment, dietary PPS-75 increased (P &lt; 0.05) average daily gain (g/head/day) of sheep from dietary PPS-0 (control). <i>As fed</i> dietary PPS up to 75% to replace PSS has an anthelmintic potential and it can increase performance of sheep after being treated by an anthelmintic.

将18头自然感染圆线虫属未定种（Strongylus sp.）的普里安公羊（初始每克粪便虫卵数为120±31.8，均值±标准误（SE））采用完全随机设计，设置3组原样饲喂（as fed）剂量的木瓜皮青贮料（papaya peel silage, PPS）添加方案，以稻草青贮料（paddy straw silage, PSS）为基础日粮，添加比例分别为0%（PPS-0）、50%（PPS-50）与75%（PPS-75），每组设置6个重复，考察驱虫治疗（anthelmintic treatment）前后公羊的生产性能。在公羊体内寄生虫感染阶段，与日粮PPS-0组（565±238 eggs/g faeces）相比，PPS-50组（340±129 eggs/g faeces）与PPS-75组（225±44.5 eggs/g faeces）的圆线虫属未定种粪便虫卵计数可维持在轻度感染范畴（<500 eggs/g faeces）。驱虫治疗后，日粮PPS-75组的绵羊平均日增重（average daily gain, ADG）较PPS-0对照组显著提升（P<0.05）。按原样饲喂基准计，日粮中添加最高75%的木瓜皮青贮料以替代稻草青贮料，具备驱虫潜力，且可在驱虫治疗后提升绵羊的生产性能。