Effects of an experimental phytase on performance, egg quality, tibia ash content and phosphorus bioavailability in laying hens fed on maize- or barley-based diets

References

• Association of Official Analytical Chemists 1990 Official Methods of Analysis 15th edn Washington DC Association of Official Analytical Chemists
   Google Scholar
• Boling , SD , Douglas , MW , Johnson , ML , Wang , X and Parsons , CM . 2000a . The effects of dietary available phosphorus levels and phytase on performance of young and older laying hens . Poultry Science , 79 : 224 – 230 .
   PubMed Web of Science ®Google Scholar
• Boling , SD , Douglas , MW , Shirley , RB , Parsons , CM and Koelkebeck , KW . 2000b . The effects of various dietary levels of phytase and available phosphorus on performance of laying hens . Poultry Science , 79 : 535 – 538 .
   PubMed Web of Science ®Google Scholar
• Eeckhout , W and DePaepe , M . 1994 . Total phosphorus, phytate-phosphorus and phytase activity in plant feedstuffs . Animal Feed Science and Technology , 47 : 19 – 29 .
   Web of Science ®Google Scholar
• Engelen , AJ , Van der Heeft , FC , Randsdorp , PHG and Smit , ELC . 1994 . Simple and rapid determination of phytase activity . Journal of AOAC , 77 : 760 – 764 .
   PubMed Web of Science ®Google Scholar
• Gordon , RW and Roland , DA . 1997 . Performance of commercial laying hens fed various phosphorus levels, with and without supplemented phytase . Poultry Science , 76 : 1172 – 1177 .
   PubMed Web of Science ®Google Scholar
• Gordon , RW and Roland , DA . 1998 . Influence of supplemental phytase on calcium and phosphorus utilization in laying hens . Poultry Science , 77 : 290 – 294 .
   PubMed Web of Science ®Google Scholar
• Grobas , S , Mendez , J , De Blas , C and Mateos , GG . 1999 . Laying hen productivity as affected by energy, supplemental fat, and linoleic acid concentration of the diet . Poultry Science , 78 : 1542 – 1551 .
   PubMed Web of Science ®Google Scholar
• Jeroch , VH and Peter , W . 1994 . Zur Wirksamkeit mikrobieller Phytase zu Legehennen-rationen auf Mais- bzw. Weizenbasis . Die Bodenkultur , 4 : 361 – 368 .
   Google Scholar
• Keshavarz , K . 2003 . Effects of continuous feeding of low-phosphorus diets with and without phytase during the growing and laying periods on performance of two strains of Leghorns . Poultry Science , 82 : 1444 – 1456 .
   PubMed Web of Science ®Google Scholar
• Lehmann , M , Kostreva , D , Wyss , M , Brugger , R , D’Arcy , A , Pasamontes , L and van Loon , APGM . 2000 . From DNA sequence to improved functionality: using protein sequence comparisons to rapidly design a thermostable consensus phytase . Protein Engineering , 13 : 49 – 57 .
   PubMedGoogle Scholar
• Lim , HS , Namkung , H and Paik , IK . 2003 . Effects of phytase supplementation on performance, egg quality, and phosphorus excretion of laying hens fed different levels of dietary calcium and nonphytate phosphorus . Poultry Science , 82 : 92 – 99 .
   PubMed Web of Science ®Google Scholar
• Orban , JI , Roland , DA Sr and Bryant , MM . 1993 . Factors influencing bone mineral content, density, breaking strength, and ash as response criteria for assessing bone quality in chickens . Poultry Science , 72 : 437 – 446 .
   Web of Science ®Google Scholar
• Punna , S and Roland , S . 1999 . Influence of supplemental microbial phytase on first cycle laying hen fed phosphorus-deficient diets from day one of age . Poultry Science , 78 : 1407 – 1411 .
   PubMed Web of Science ®Google Scholar
• Rising , R , Maiorino , P , Alak , J and Reid , B . 1989 . Indirect calorimetry evaluation of dietary protein and animal fat effects on energy utilization of laying hens . Poultry Science , 68 : 258 – 264 .
   PubMed Web of Science ®Google Scholar
• Sauveur B De Reviers M 1988 Qualité de l’oeuf in: Institut National de la Recherche Agronomique (Eds) Reproduction des volailles et production d’oeufs Chap. 14, 385 pp. Paris INRA
   Google Scholar
• Scott , TA , Kampen , R and Silversides , FG . 2000 . The effect of phosphorus, phytase enzyme, and calcium on the performance of layers fed wheat-based diets . Canadian Journal of Animal Science , 80 : 183 – 190 .
   Web of Science ®Google Scholar
• Short , FJ , Gorton , P , Wiseman , J and Boorman , KN . 1996 . Determination of titanium dioxide added as an inert marker in chicken digestibility studies . Animal Feed Science and Technology , 59 : 215 – 221 .
   Web of Science ®Google Scholar
• Simon , O and Igbasan , F . 2002 . In vitro properties of phytases from various microbial origins . International Journal of Food Science and Technology , 37 : 813 – 822 .
   Web of Science ®Google Scholar
• Simons , PCM , Versteegh , HAJ , Jongbloed , AW , Kemme , PA , Slump , P , Bos , KD , Wolters , MGE , Beudeker , RF and Verschoor , GJ . 1990 . Improvement of phosphorus availability by microbial phytase in poultry and pigs . British Journal of Nutrition , 64 : 525 – 540 .
   PubMed Web of Science ®Google Scholar
• Strong , CF Jr . 1989 . Relationship between several measures of shell quality and egg-breakage in a commercial processing plant . Poultry Science , 68 : 1730 – 1733 .
   Web of Science ®Google Scholar
• Um , JS and Paik , IK . 1999 . Effects of microbial phytase supplementation on egg production, eggshell quality, and mineral retention of laying hens fed different levels of phosphorus . Poultry Science , 78 : 75 – 79 .
   PubMed Web of Science ®Google Scholar
• Usayran , N and Balnave , D . 1995 . Phosphorus requirements of laying hens fed on wheat-based diet . British Poultry Science , 36 : 285 – 301 .
   PubMed Web of Science ®Google Scholar
• Van der Klis , JD , Versteegh , HAJ , Simons , PCM and Kies , AK . 1997 . The efficacy of phytase in corn–soybean meal-based diets for laying hens . Poultry Science , 76 : 1535 – 1542 .
   PubMed Web of Science ®Google Scholar
• Wei , R , Bitgood , JJ and Dentine , MR . 1992 . Inheritance of tinted eggshell colours in white-shell stocks . Poultry Science , 71 : 406 – 418 .
   PubMed Web of Science ®Google Scholar