Author(s): Wu Zhengrong, Ma Chenrong
Pages: 199-203
Year: 1990 Issue:  2
Journal: Journal of Huazhong Agricultural University
Keyword:  formaldehyde; casein; temperature; degradation; digestibility; ruminant;
Abstract: Degrability of dry matter and crude protein of casein in the rumen was assayedafter three levels of formaldehyde treatments (formaldehyde:casein; 0.15:1;0.55:1 and 0.95:1) at two temperatures (35℃ and 55℃). The results showedthat both formaldehyde and temperature treatments significantly reduced the degrad-ability. Digestibility of the amino acids and crude protein in undegraded protein inrumens decreased with increating amout of formaldehyde and elevated tempratures asdetermined by analyzing the content at the end of sheep ileum and by forced feedingon chicken. We concluded that both formaldehyde and temperature treatments caneffectively reduce casein degradation in tureens and, as a result, provide more proteinsfor the intestine.