Vegetation Resources and Goat Foraging Behaviour in Rangeland System in Southern of Madagascar  

作　　者：Arsene Jules Randrianariveloseheno Jean de Neupomuscene Rakotozandriny Roger Daccord 

机构地区：[1]Laboratory of Animal Nutrition, Department of Animal Science, Agronomical Science High School, University of Antananarivo,P.O. Box 175, Antananarivo 101, Madagascar [2]Swiss Federal Research Station for Animal Production and Dairy Products, Agroscope Liebefeld Posieux, Posieux CH 1725,Switzerland

出　　处：《Journal of Life Sciences》2014年第11期902-907,共6页生命科学（英文版）

摘　　要：Goat satisfying energy requirements of goat are determined by anatomical body and browse leaves. In High Bassin zone of Mandrare in Southern Madagascar, sampling area of 400 m^2 has been monitored to analysis floristic diversity and Shannon-Weaver index and to establish rangeland typology. With one ram, two castrated goats and three ewes, foraging behaviour, bite rate and forage nutritive value were analyzed in native pastureland during six days at two browsing periods. As results, four pastureland groups were classified with dominant shrubs plants Acacia farnesiana, Poupartia caffra, Kigelianthe madagascariensis and Rhigozum madagascariense. Rangelands sites have presented lower heterogeneity with floristic density （236-658 plants per hectare）, Shannon-Weaver index （0.28-0.95）, maximum diversity （1.04 ± 0.07） with P 〈 0.05. Most of 42 identified fodder plants presented significant difference （P 〈 0.05） and higher nutritive value （35-54% Dry Matter or DM）; mineral matter （70-162 g·kg DM^-1）; Crude Protein （124-175 g·kg DM^-1）; Crude Fibre （203-376 g·kg DM^-1）; Neutral Detergent Fiber （388-548 g·kg DM^-1） and gross energy （3617-4464 kcal·kg DM^-1）. Acaciafarnesiana rangeland was overgrazed with 4.00 to 9.00 bites·mn^-1. In fact, relationships between phytosociology, nutritional parameters and foraging behaviour have been analyzed to improve with autochthonous plants and to manage rangeland in semi arid environment.

关 键 词：BITE goats FORAGING BEHAVIOUR Madagascar. 

分 类 号：S823[农业科学—畜牧学] Q958[农业科学—畜牧兽医]