首页> 外文期刊>Tropical Animal Health and Production >Intake, digestibility and metabolism in sheep fed with increasing levels of spineless cactus (Nopalea cochenillifera Salm-Dyck)
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Intake, digestibility and metabolism in sheep fed with increasing levels of spineless cactus (Nopalea cochenillifera Salm-Dyck)

机译:绵羊饲喂绵羊的摄入,消化率和新陈代谢,随着椎骨鳞片(Nopalea Cochenillifera Salm-dyck)饲喂

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摘要

The objective of this study was to evaluate the effect of the substitution of Tifton 85 hay (Cynodon spp.) with spineless cactus (Nopalea cochenillifera) on the intake, digestibility of nutrients and ingestive behaviour of sheep. Eight rumen-cannulated sheep were used, with an average body weight of 58.44 +/- 13.5kg. The treatments consisted of the replacement of Tifton 85 hay with cactus at levels of 0, 333, 666 and 1000g/kg. Samples of food and leftovers were collected at the beginning of each trial period. Digestibility was estimated using indigestible acid detergent fibre. Ingestive behaviour was evaluated via scan sampling. The replacement of Tifton 85 hay with spineless cactus had a significant effect (P0.05) on the intake and digestibility of neutral detergent fibre and non-fibre carbohydrates. The rumination efficiency of neutral detergent fibre was not affected (P>0.05) by the substitution of Tifton 85 hay with spineless cactus. However, plasma glucose, phosphorus and magnesium were linearly influenced by Tifton 85 hay replacement with spineless cactus. Therefore, spineless cactus can be used to replace up to 500g/kg of Tifton 85 hay in complete diets for sheep.
机译:本研究的目的是评估TIFTON 85 Hay(Cynodon SPP)的替代物的效果与椎骨仙人掌(Nopalea Cochenillifera)的摄入,营养素的消化率和绵羊的摄取行为。使用八个瘤胃插管绵羊,平均体重为58.44 +/- 13.5kg。该治疗包括替代TIFTON 85干草,仙人掌为0,33,666和1000g / kg。在每次试用期开始时收集食物和剩菜样本。使用耐酸酸洗涤剂纤维估计消化率。通过扫描抽样评估摄取行为。用脊椎仙人掌替换TIFTON 85干草具有显着的影响(P <0.05),对中性洗涤剂纤维和非纤维碳水化合物的摄入和消化率进行了显着影响通过用无骨仙人掌的术术,中性洗涤剂纤维的谱效率不受影响(p> 0.05)。然而,血浆葡萄糖,磷和镁由TIFTON 85 Hay替代用无骨仙人掌而导致线性影响。因此,脊椎仙人掌可用于更换高达500g / kg的TIFTON 85干草,以完成绵羊的完全饮食。

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