Protein fractions (Cornell system) of lucerne dried
or ensiled with different additives

X. S. Guo; W. R. Ding; J. G. Han; H. Zhou

doi:10.22358/jafs/74503/2007

Suppl. 2/2007 vol. 16

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Protein fractions (Cornell system) of lucerne dried or ensiled with different additives

X. S. Guo ^1,2

W. R. Ding ³

J. G. Han ²

H. Zhou ²

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Key Laboratory of Arid and Grassland Ecology Lanzhou University, Ministry of Education, Lanzhou 730000, P.R. China

College of Animal Science and Technology, China Agricultural University, Beijing 100094, P.R. China

Department of Grassland Science, Sichuan Agriculture University, Yaan Sichuan 625014, P.R. China

Publication date: 2007-09-17

Corresponding author

H. Zhou

College of Animal Science and Technology, China Agricultural University, Beijing 100094, P.R. China

J. Anim. Feed Sci. 2007;16(Suppl. 2):261-265

DOI: https://doi.org/10.22358/jafs/74503/2007

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ABSTRACT

Effects of formic acid, formaldehyde, tannic acid or mixture of each two of the additives on five protein fractions based on the Cornell Net Carbohydrate and Protein System (CNCPS) in hay and ensiled lucerne (Medicago sativa) were studied. After 35 d of ensiling, the additives significantly reduced fraction A in the ensiled forages. Fraction B₁ in all of the additive-treated silages was significantly higher than that in control silage. Large amounts of true protein in the formic acid/ formaldehyde treated- and tannic acid/formaldehyde treated-silages were fractions B₃ and fraction B₂, respectively. No difference was observed on fraction C content between the control silage and silages treated with additives except for the formaldehyde or tannic acid treated-silages.

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