Nutritional diversity of agricultural and agro-industrial by-products for ruminant feeding

被引：13

作者：

Azevedo, J. A. G. ^{[1
]}

Valadares Filho, S. C. ^{[2
]}

Pina, D. S. ^{[3
]}

Detmann, E. ^{[2
]}

Pereira, L. G. R. ^{[4
]}

Valadares, R. F. D. ^{[2
]}

Fernandes, H. J. ^{[5
]}

Costa e Silva, L. F. ^{[2
]}

Benedeti, P. B. ^{[2
]}

机构：

[1] Univ Estadual Santa Cruz, Ilheus, BA, Brazil

[2] Univ Fed Vicosa, Vicosa, MG, Brazil

[3] Univ Fed Mato Grosso do Sul, Cuiaba, MT, Brazil

[4] Embrapa Gado Leite, Coronel Pacheco, MG, Brazil

[5] Univ Estadual Mato Grosso Sul, Dourados, MS, Brazil

来源：

ARQUIVO BRASILEIRO DE MEDICINA VETERINARIA E ZOOTECNIA | 2012年 / 64卷 / 05期

关键词：

alternative feed; nutritive value; residues; waste; WHOLE COTTONSEED; SOYBEAN HULLS; DIETS; DIGESTIBILITY; PERFORMANCE; PROTEIN; CORN; REPLACEMENT; COWS; SUPPLEMENTATION;

D O I：

10.1590/S0102-09352012000500024

中图分类号：

S85 [动物医学（兽医学）];

学科分类号：

0906 ;

摘要：

Fifty-seven by-products were collected from regions throughout Brazil. Chemical composition, in vitro neutral detergent fiber digestibility (IVNDFD), and total digestible nutrients (TDN) were determined with the objective of grouping by-products with similar nutritional characteristics. The by-products belonging to group one (G1) presented the highest content of neutral detergent fiber exclusive of ash and nitrogenous compounds [aNDFom(n)] and lowest energy content, with 42.5% and 38.8% of IVNDFD and TDN, respectively. A new cluster analysis was carried in order to better characterize G2 by-products, six subgroups (SGs) were established (SG1 to SG6). SG1 by-products had the highest and the lowest values for lignin and TDN, respectively. SG2 by-products had the highest aNDFom(n) value, with TDN and IVNDFD values greater than 600 and 700g/kg, respectively, and crude protein (CP) value below 200g/kg in dry matter (DM). Among all the subgroups, SG3 had the highest TDN (772g/kg) and IVNDFD (934g/kg) values and the lowest lignin (23g/kg in DM) value. The ether extract was what most influenced the hierarchical establishment of residual grouping in SG4. SG5 by-products had the highest concentration of non-fibrous carbohydrate. Different from the other subgroups, SG6 by-products had the highest value of available CP.

引用

页码：1246 / 1255

页数：10

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