Dairy goat grazing systems in Mediterranean regions: A comparative analysis in Spain, France and Italy

被引:35
|
作者
Ruiz, F. A. [1 ]
Mena, Y. [2 ]
Castel, J. M. [2 ]
Guinamard, C. [3 ]
Bossis, N. [3 ]
Caramelle-Holtz, E. [3 ]
Contu, M. [4 ]
Sitzia, M. [5 ]
Fois, N. [5 ]
机构
[1] IFAPA Ctr Las Torres Tomejil, Seville 41200, Spain
[2] Univ Seville, Escuela Ingn Tecn Agr, Dept Ciencias Agroforestales, Seville 41013, Spain
[3] Inst Elevage, F-75595 Paris, France
[4] Assoc Reg Allevatori Sardegna, I-09128 Cagliari, Italy
[5] AGRIS Sardegna Agenzia Ric Agr Sardegna, Dip Prod Anim, I-07040 Bonassai, Olmedo, Italy
关键词
Grazing system; Dairy goat; Mediterranean regions; Multivariate analysis; SHEEP; SUSTAINABILITY;
D O I
10.1016/j.smallrumres.2009.07.003
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
In order to maintain small ruminant grazing systems it is necessary to know precisely how they work and what actions can be taken to improve them. The objective of this paper was to characterize, classify. analyse and propose improvements for the dairy goat grazing systems in three countries from the western Mediterranean area: Spain, France and Italy. A multivariate analysis was conducted with 21 indicators obtained from the data collected from 45 farms. As a result of the multivariate analysis, 82.5% of variance was explained by two principal components. The first component included proportion of cultivated pasture area and cultivated pasture area pergoat. The second included goats present and forage supply pergoat. After conducting a cluster analysis based on these two principal components, farms were classified into four groups. Group I was made up of French and Italian farms, which had a smaller territorial base but a high cultivated pasture area per goat, contributing to greater self-sufficiency in feed. However the concentrate per goat was too high in relation to milk production, which was medium. The difference between milk income and feed cost is also medium. Group 2 was basically made up of Italian farms. The farms in this group had the most extensive management systems, with a low use of inputs. However, the milk production was low, meaning that the difference between milk income and feed cost was also low. Group 3 was mainly made up of Spanish farms. On these farms the concentrate supply was excessive and the forage supply was low. The milk production per goat was medium and the difference between milk income and feed cost was small. Group 4 was made up mainly of French farms. The farms of this group had a moderate supply of concentrate although the forage supply was very high. They had a high milk production, which lead to a large difference between milk income and feed cost per goat. The main weaknesses observed are related to feeding management, particularly grazing, and to the goat productivity. In the former case research on the nutritional utilization of rangelands and pastures and correct feed supplementation is to be encouraged. In the latter, the production capacity of the goats present in these systems should be improved, without forgetting the balance between hardiness and general productivity. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:42 / 49
页数:8
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