Zinc Requirement of the Chick: Factors Affecting Requirement

Zeigler, T. R.; Leach, R. M.; Norris, L. C.; Scott, M. L.

doi:10.3382/ps.0401584

Cited by 41 publications

(11 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because many natural feed ingredients are marginally deficient in zinc (Falchuk and Vallee, 1985;Kaim and Schwederski, 1994). The current (NRC, 1994) zinc requirement for broilers is 40 mg/kg, that based upon research conducted more than 40 yr ago with animals of markedly different productive potential than those that exist today, also this requirement is based on only a few research reports, most of which were carried out using purified or semipurified diets with growth as the only requirement criterion (Roberson and Schaible, 1958;Zeigler et al, 1961;Emmert and Baker, 1995). Dietary Supplementation with inorganic trace minerals have traditionally provided with sufficient amounts of each mineral to support normal growth, health, and reproduction.…”

Section: Introductionmentioning

confidence: 99%

Retraction: Estimation of the Relative Bioavailability of Several Zinc Sources for Broilers Fed a Conventional Corn-Soybean Meal Diet

et al. 2013

View full text Add to dashboard Cite

An experiment was conducted with 312 day-old male broiler chicks in grower phase (8-28d) to estimate the biological availability of four sources of zinc (Zn); zinc sulfate (ZnSO 4 ･H 2 O), two sources of zinc oxide (ZnO FG1 and ZnO FG2) and Bioplex Zn. Zinc sulfate was used as the standard in the bioavailability assay. Chicks were allotted randomly to 13 dietary treatments with 6 birds per replicate and 4 replicates per treatment, that included an unsupplemented corn-soybean meal basal diet (25.50 mg of Zn/kg of DM), or the basal diet supplemented with 100, 150 or 200 mg/kg of DM as either ZnSO 4 ･H 2 O (33% Zn), zinc oxide FG1 (72% Zn), zinc oxide FG2 (75% Zn) or Bioplex Zn (15% Zn). Dietary zinc level and source had no effect (P＞0.05) on feed intake or body weight gain of chicks during first and second weeks of experimental periods, but feed conversion ratio in the first and second week and feed intake, body weight gain or feed conversion ratio in third week and total experimental periods were significant difference between treatments (P＜0.05). Using the slope ratio methods from the regression of weight gain on supplemental zinc intake. The relative biological availability values using body weight gain were estimated to be 59, 99 or 45 for three levels of zinc oxide FG1, 64, 78 or 31 for three levels of zinc oxide FG2 and 151, 200 or 147 for three levels of Bioplex Zn, respectively. From the standpoint of bioavailability, Bioplex Zn was more available to broiler chicks than zinc from other sources and can be used by the feed industry as sources of supplemental zinc for broiler chickens.

show abstract

Section: Introductionmentioning

confidence: 99%

Retraction: Estimation of the Relative Bioavailability of Several Zinc Sources for Broilers Fed a Conventional Corn-Soybean Meal Diet

et al. 2013

View full text Add to dashboard Cite

show abstract

“…Soybean protein has been shown to have the ability to chelate zinc (Zeigler et al, 1961). Soybean protein has been shown to have the ability to chelate zinc (Zeigler et al, 1961).…”

Section: Resultsmentioning

confidence: 99%

Zinc Requirement for Normal Feathering of Commercial Leghorn-Type Pullets

Sunde

1972

Poultry Science

View full text Add to dashboard Cite

Commercial egg type chicks have been fed practical type starting rations containing 5 percent meat scrap and 5 percent fish meal. The basal diet analyzed 38-44 p.p.m. zinc for the different years. The use of a new feed mill increased the level in the basal diet to 52-55 p.p.m. Addition of zinc carbonate decreased the incidence of a feather abnormality from 5-20 percent down to very low levels. Total zinc levels of 52 p.p.m. for 3 weeks did not prevent the fraying. However, 78 p.p.m. and higher levels for only the first week gave good protection. Feeding the higher levels of zinc for only the first week of life gave excellent protection. Weight gains were not improved significantly by zinc additions. A feather condition described as a blister appeared in frequencies of .4-2.2% even with commercial egg strains.

show abstract

“…The current NRC zinc requirement for broilers is 40 ppm (NRC, 1994), but this requirement is based on only a few experiments using purified or semi purified diets (Roberson and Schaible, 1958;Zeigler et al, 1961). Many commercial broiler diets have been formulated on this recommendation, and inorganic zinc sources are preferred rather than organic ones due to their lower prices.…”

Section: Introductionmentioning

confidence: 99%

Effect of Sources and Levels of Zinc on the Tissue Mineral Concentration and Carcass Quality of Broilers

Salim

Lee

et al. 2010

Avian Biology Research

View full text Add to dashboard Cite

A study was conducted to determine the effect of sources and levels of zinc on tissue zinc concentration and the carcass quality of broilers. A total of 6,000 1-day-old unsexed broiler chicks were allotted randomly to four floor pens with 1,500 birds per pen. A corn-wheat-soybean meal basal diet (Control) was formulated, and 40 ppm inorganic zinc (40 IZ), 40 ppm organic zinc (40 OZ), and 80 ppm organic zinc (80 OZ) were added to the basal diet to form four dietary treatments. During the 4-wk experimental period, feed and water were provided ad libitum. At the end of the feeding trial, five birds from each pen were randomly selected as five replicates, slaughtered and carcass evaluation was performed. Results showed that zinc supplementations have no effect on zinc content in thigh muscle but a significant increase was found in skins from broilers in 80 OZ (P50:05). The epidermis thickness of tibia and back skin were not affected by the zinc supplementations. However, significant increases of tibia and back skin dermis thickness were found (P50:05) by zinc supplementation and organic zinc was more effective than inorganic zinc in this respect (P50:05). The collagen contents of breast and thigh muscle were not affected by dietary zinc supplementation, but organic zinc increased the collagen contents in the back skin of broilers (P50:05). Shear force values of back skin and breast muscle were not affected by zinc supplementation. It is concluded that dietary organic zinc is more effective in increasing the skin zinc concentration, and improving skin quality of broilers than inorganic zinc.

show abstract

Zinc Requirement of the Chick: Factors Affecting Requirement

Cited by 41 publications

References 11 publications

Retraction: Estimation of the Relative Bioavailability of Several Zinc Sources for Broilers Fed a Conventional Corn-Soybean Meal Diet

Retraction: Estimation of the Relative Bioavailability of Several Zinc Sources for Broilers Fed a Conventional Corn-Soybean Meal Diet

Zinc Requirement for Normal Feathering of Commercial Leghorn-Type Pullets

Effect of Sources and Levels of Zinc on the Tissue Mineral Concentration and Carcass Quality of Broilers

Contact Info

Product

Resources

About