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Evaluation of single cell protein and its supplementary effect when combined with other feedstuffs


Landbauforschung Voelkenrode 30(2): 87-92
Evaluation of single cell protein and its supplementary effect when combined with other feedstuffs
The protein quality was evaluated of 2 alkane yeasts and 1 bacterium grown on methanol. Amino acid composition was analyzed and N balance trials were carried out, to study protein utilization and supplementary effects, when SCP [single cell protein] is combined with cottonseed meal, sunflower meal or soybean meal. The lysine contents of SCP were sufficient but there was a deficit in S containing amino acids. The content of S containing amino acids of cottonseed meal and sunflower meal is sufficient, but there is a deficiency in lysine contents. Experiments with rats prove the utilization of SCP and soybean protein to be in the range of 60-70%, whereas the protein utilization of sunflower meal, cottonseed meal and of maize and barley was .apprx. 50%. Some combinations resulted in a protein utilization higher than for SCP. A high protein utilization was found when SCP was combined with extracted oil meals and when corn was added.


Accession: 005401550



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