Intestinal and total tract phytate digestibility and phytase activity in the digestive tract of hens fed a wheat – maize – soybean diet

0347450 - ÚŽFG 2011 RIV PL eng J - Článek v odborném periodiku
Marounek, Milan - Skřivan, M. - Rosero, O. - Rop, O.
Intestinal and total tract phytate digestibility and phytase activity in the digestive tract of hens fed a wheat – maize – soybean diet.
Journal of Animal and Feed Sciences. Roč. 19, - (2010), s. 430-439. ISSN 1230-1388. E-ISSN 1230-1388
Grant CEP: GA ČR GA523/07/0673
Výzkumný záměr: CEZ:AV0Z50450515
Klíčová slova: digestive tract * phytate activity * hens
Kód oboru RIV: GH - Výživa hospodářských zvířat
Impakt faktor: 0.659, rok: 2010

The intestinal and total tract digestibilities of phosphorus (P) and phytate P were determined in digestibility trials with laying hens and broiler breeders. In both digestibility trials, the total tract digestibility of phytate P was higher than the intestinal digestibility (33 and 35 % vs 20 and 18 %). In contrast, in both trials the total tract retention of P was lower than the intestinal retention (22 and 19 % vs 52 and 42 %). The average specific phytase activities in the crop, stomach, small intestinal contents, mucosa and caecal contents were 10.2, 9.2, 14.6, 11.5 and 135 μmol.h-1.g-1, respectively.
Trvalý link: http://hdl.handle.net/11104/0188223