Utilization of by-product from Soya bean for growing pigs

Sida-SAREC 1988-2003

Citation of this paper

(http://www.mekarn.org/sarec03/thanhhue2.htm)

Tran Thi Thu Hong, Vo Thi Kim Thanh, Dao Thi Phuong,
Phung Thi Luu and E R Ørskov*

 Hue College of Agriculture and Forestry,
* International Feed Resource Unit, Macaulay Land Use Research Institute, Scotland, UK

 
Abstract

An experiment was carried out to determine the chemical and nutritive value of Soya bean residue (SBR), and effects on performance of growing crossbred (Large White × Mong Cai) pigs. The replacement levels were 0, 33, 66 and 99% of the fish meal. The experimental design was a 4*4 Latin square with periods of 10 days, 5 for adaptation and 5 for collection of faeces and urine.

The apparent digestibility coefficients for DM, OM and crude protein decreased slightly as the level of SBR in the diets increased with a significant reduction from the 66 to 99% fish meal replacement level. N retention showed a different trend with increases up to the 66% fish meal replacement, followed by lower values at the 99% replacement level, which did not differ from the N retention  observed on the control and 33% fish meal replacement level.
In an on-farm trial with 24 fattening pigs,  performance with 66% replacement of the fish meal by the Soya bean by-product was similar to that on the control diet, but with  superior economic returns.

Key words: Pigs, Soya bean residue, fish meal, crude protein, digestibility, growth, conversion
 

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