Biomaterial Database

Effects of 1,25-dihydroxycholecalciferol and phytase on zinc utilization in broiler chicks. 1994

K D Roberson, and H M Edwards

Department of Poultry Science, University of Georgia, Athens 30602.

Studies were conducted with corn-soybean meal diets to evaluate the effects of phytate phosphorus utilization on zinc absorption and retention in broiler chicks. In the first two experiments, zinc-65 was used to determine zinc absorption. Experiment 1 was a 2 x 2 factorial with 0 or 5 micrograms/kg dihydroxycholecalciferol and 0 or 40 ppm supplemental zinc. In Experiment 2, 5 micrograms/kg 1,25-dihydroxycholecalciferol [1,25-(OH)2D3] or 750 units/kg phytase or both were added to a diet containing 35 ppm zinc. The diets in Experiment 3 were similar to Experiment 2 except that 600 units/kg phytase was fed. Experiment 4 was similar to Experiment 3 except that dietary phosphorus was decreased by .15%. There were no treatment effects on body weight in Experiments 1 and 2. Zinc absorption was higher in zinc-deficient birds in Experiment 1, but there were no other effects on zinc-65 absorption or retention. Body weight was increased by 1,25-(OH)2D3 in Experiments 3 and 4 and by phytase in Experiment 4. Phytate phosphorus retention was increased by phytase and 1,25-(OH)2D3 and was increased additively when both sources were fed. Dietary 1,25-(OH)2D3 increased zinc retention at times during Experiments 3 and 4, but this response was inconsistent. Phytase did not affect zinc retention. Phytase plus 1,25-(OH)2D3 increased zinc retention synergistically in Experiment 3. Bone zinc was increased by 1,25-(OH)2D3 and phytase, and there was an additive effect in Experiment 3. Plasma zinc and alkaline phosphatase were not affected. The results suggest that supplemental zinc may be decreased in a corn-soybean meal diet when phytate phosphorus utilization is enhanced.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D010009	Osteochondrodysplasias	Abnormal development of cartilage and bone.	Dyschondroplasias,Hyperostosis Corticalis Generalisata,Melnick-Needles Syndrome,Multiple Epiphyseal Dysplasia,Schwartz-Jampel Syndrome,Spondyloepiphyseal Dysplasia,Chondrodystrophic Myotonia,Dyschondroplasia,Endosteal Hyperostosis, Autosomal Recessive,Hyperphosphatasemia Tarda,Late-Onset Spondyloepiphyseal Dysplasia,Melnick-Needles Osteodysplasty,Myotonic Chondrodystrophy,Myotonic Myopathy, Dwarfism, Chondrodystrophy, And Ocular And Facial Abnormalities,Osteodysplasty of Melnick and Needles,SED Tarda,SJA Syndrome,Schwartz Jampel Aberfeld syndrome,Schwartz-Jampel Syndrome, Type 1,Schwartz-Jampel-Aberfeld Syndrome,Sost Sclerosing Bone Dysplasia,Sost-Related Sclerosing Bone Dysplasia,Spondylo-Epimetaphyseal Dysplasia With Myotonia,Spondyloepiphyseal Dysplasia Tarda, X-Linked,Spondyloepiphyseal Dysplasia, Late,Van Buchem Disease,X-Linked SED,X-Linked SEDT,X-Linked Spondyloepiphyseal Dysplasia Tarda,Chondrodystrophy, Myotonic,Dysplasia, Spondyloepiphyseal,Late Onset Spondyloepiphyseal Dysplasia,Late Spondyloepiphyseal Dysplasia,Melnick Needles Osteodysplasty,Melnick Needles Syndrome,Myotonia, Chondrodystrophic,Osteochondrodysplasia,Osteodysplasty, Melnick-Needles,SED, X-Linked,SEDT, X-Linked,Schwartz Jampel Syndrome,Schwartz Jampel Syndrome, Type 1,Spondyloepiphyseal Dysplasia Tarda, X Linked,Spondyloepiphyseal Dysplasia, Late-Onset,Syndrome, Schwartz-Jampel-Aberfeld,X Linked SED,X Linked SEDT,X Linked Spondyloepiphyseal Dysplasia Tarda
D010758	Phosphorus	A non-metal element that has the atomic symbol P, atomic number 15, and atomic weight 31. It is an essential element that takes part in a broad variety of biochemical reactions.	Black Phosphorus,Phosphorus-31,Red Phosphorus,White Phosphorus,Yellow Phosphorus,Phosphorus 31,Phosphorus, Black,Phosphorus, Red,Phosphorus, White,Phosphorus, Yellow
D010832	6-Phytase	An enzyme that catalyzes the conversion of myo-inositol hexakisphosphate and water to 1L-myo-inositol 1,2,3,4,5-pentakisphosphate and orthophosphate. EC 3.1.3.26.	Phytase,6 Phytase
D011201	Poultry Diseases	Diseases of birds which are raised as a source of meat or eggs for human consumption and are usually found in barnyards, hatcheries, etc. The concept is differentiated from BIRD DISEASES which is for diseases of birds not considered poultry and usually found in zoos, parks, and the wild.	Disease, Poultry,Diseases, Poultry,Poultry Disease
D001835	Body Weight	The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.	Body Weights,Weight, Body,Weights, Body
D002117	Calcitriol	The physiologically active form of vitamin D. It is formed primarily in the kidney by enzymatic hydroxylation of 25-hydroxycholecalciferol (CALCIFEDIOL). Its production is stimulated by low blood calcium levels and parathyroid hormone. Calcitriol increases intestinal absorption of calcium and phosphorus, and in concert with parathyroid hormone increases bone resorption.	1 alpha,25-Dihydroxycholecalciferol,1 alpha,25-Dihydroxyvitamin D3,1, 25-(OH)2D3,1,25(OH)2D3,1,25-Dihydroxycholecalciferol,1,25-Dihydroxyvitamin D3,1 alpha, 25-dihydroxy-20-epi-Vitamin D3,1,25(OH)2-20epi-D3,1,25-dihydroxy-20-epi-Vitamin D3,20-epi-1alpha,25-dihydroxycholecaliferol,Bocatriol,Calcijex,Calcitriol KyraMed,Calcitriol-Nefro,Decostriol,MC-1288,MC1288,Osteotriol,Renatriol,Rocaltrol,Silkis,Sitriol,Soltriol,Tirocal,1 alpha,25 Dihydroxyvitamin D3,1,25 Dihydroxycholecalciferol,1,25 Dihydroxyvitamin D3,1,25 dihydroxy 20 epi Vitamin D3,Calcitriol Nefro,D3, 1 alpha,25-Dihydroxyvitamin,D3, 1,25-Dihydroxyvitamin,D3, 1,25-dihydroxy-20-epi-Vitamin,KyraMed, Calcitriol,MC 1288
D002645	Chickens	Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA.	Gallus gallus,Gallus domesticus,Gallus gallus domesticus,Chicken
D005527	Food, Fortified	Any food that has been supplemented with essential NUTRIENTS either in quantities that are greater than those normally present, or which are not found in the food typically. Fortified food also includes food enriched by adding various nutrients to compensate for those removed by refinement or processing. (Modified from Segen, Dictionary of Modern Medicine, 1992).	Enriched Food,Food, Supplemented,Enriched Foods,Food, Enriched,Foods, Enriched,Foods, Fortified,Foods, Supplemented,Fortified Food,Fortified Foods,Supplemented Food,Supplemented Foods
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia