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帕拉库(贝宁)地区 scavenging 盔珠鸡(Numida meleagris, L.)作物含量的季节性变化 。 注:scavenging 在这里意思不太明确,可能是“觅食的”之类的意思,结合语境理解翻译,但原文这个词在这个语境下不太常见和准确,推测可能是文档本身存在一些不规范表述。

Seasonal variations in the crop contents of scavenging Helmeted Guinea Fowls (Numida meleagris, L.) in Parakou (Benin).

作者信息

Dahouda M, Toléba S S, Youssao A K I, Ali A A Mama, Hambuckers A, Hornick J-L

机构信息

Faculty of Agronomic Science, Department of Animal Production, University of Abomey-Calavi, Cotonou, Republic of Benin.

出版信息

Br Poult Sci. 2008 Nov;49(6):751-9. doi: 10.1080/00071660802464409.

Abstract
  1. An experiment was carried out with 120 helmeted guinea fowls during one year in Parakou (Benin). Feed intake, ingredient and chemical composition, along with the nutritional adequacy of scavenging diets were measured during the rainy season (November-February) and dry season (March-October) in order to propose supplementation strategies. Ingredients found in crops were identified and allocated into 6 main categories (supplemental feed, seeds, green forages, animal materials, mineral matter and unidentified materials). 2. Mean dry weights of crop contents were significantly higher in the rainy than in the dry season. Amounts and proportions of supplemental feed and seeds were not significantly different between seasons, whereas those of green forage, animal materials and mineral matter were higher in rainy season. Supplemental feed, especially maize and sorghum, was the largest component of the crop content in both seasons. The most represented grass seeds were Panicum maximum (rainy season) and Rottboellia cochinchinensis (dry season). 3. Dietary concentrations of organic matter, non-nitrogen extract and metabolisable energy were higher in the dry season, while mineral concentrations were higher in the rainy season. There were no significant differences between the two seasons in dry matter, crude protein or crude fibre. 4. Scavenging provided insufficient nutrients and energy to allow guinea fowls to be productive. Therefore, more nutritionally balanced supplementary feed would be required during both seasons.
摘要
  1. 在贝宁的帕拉库,对120只戴头盔的珍珠鸡进行了为期一年的实验。在雨季(11月至2月)和旱季(3月至10月)测量了采食量、饲料成分和化学成分,以及觅食日粮的营养充足性,以便提出补充策略。确定了在作物中发现的成分,并将其分为6大类(补充饲料、种子、绿色饲料、动物材料、矿物质和不明材料)。2. 雨季作物内容物的平均干重显著高于旱季。补充饲料和种子的数量及比例在不同季节间无显著差异,而绿色饲料、动物材料和矿物质在雨季的含量更高。补充饲料,尤其是玉米和高粱,在两个季节都是作物内容物的最大组成部分。最具代表性的草籽在雨季是大黍,在旱季是罗氏草。3. 旱季日粮中的有机物、非氮提取物和代谢能浓度较高,而矿物质浓度在雨季较高。两个季节在干物质、粗蛋白或粗纤维方面没有显著差异。4. 觅食提供的营养和能量不足以使珍珠鸡具有生产力。因此,在两个季节都需要更营养均衡的补充饲料。

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