THE ROLE OF CONDENSED TANNINS IN THE NUTRITIONAL-VALUE OF MULGA (ACACIA-ANEURA) FOR SHEEP

被引：58

作者：

PRITCHARD, DA ^{[1
]}

MARTIN, PR ^{[1
]}

OROURKE, PK ^{[1
]}

机构：

[1] QUEENSLAND DEPT PRIMARY IND,BRISBANE,QLD 4001,AUSTRALIA

来源：

AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH | 1992年 / 43卷 / 08期

关键词：

TANNINS ACACIA-ANEURA; SHEEP; PRODUCTION; PROTEIN; DIGESTIBILITY;

D O I：

10.1071/AR9921739

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Sheep were fed mulga (Acacia aneura) ad libitum and supplemented with 0, 12 or 24 g/day of polyethylene glycol molecular weight 4000 (PEG), with or without an additional supplement of 1.5 g/day of each of nitrogen (N), phosphorus (P) and sulfur (S) (NPS). Supplementation with either 12 g/day PEG or 24 g/day PEG increased dry matter intake by 56 and 78% respectively and clean wool growth per unit surface area by 166 and 178% respectively. Supplementation with 24 g/day PEG increased wool fibre diameter, linear growth rate and volumetric growth rate by 32, 29 and 143% respectively. Sheep receiving 24 g/day PEG retained more N (1.80 g/day) and S (254 mg/day) and digested more N (218 g/kg) and S (229 g/kg) when compared with non-supplemented animals. These parameters were further enhanced when NPS was supplemented in conjunction with 24 g/day PEG. Maximum precipitation (77%) of mulga condensed tannins (CT) occurred at a PEG to CT ratio of 0.7:1.

引用

页码：1739 / 1746

页数：8

共 22 条

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