An Examination of the P Requirements of Broiler Breeders for Performance, Progeny Quality and P Balance 2. Ca Particle Size

Research Article
An Examination of the P Requirements of Broiler Breeders for Performance, Progeny Quality and P Balance 2. Ca Particle Size

R.D. Ekmay and C.N. Coon

International Journal of Poultry Science, 2011, 10(10), 760-765.

Abstract

A 2 x 5 factorial production and balance study with 90 broiler breeders was performed to assess the effects calcium particle size and NPP levels. Cobb 500 broiler breeders, 24 wk of age, were fed 4.68 g Ca intake at peak using 2 particle sizes of dietary calcium carbonate (185.5 microns; 58.8% solubility and 3489.7 microns; 38.5% solubility) and 5 levels of dietary %NPP (0.2% to 0.4% NPP in 0.05% increments; corresponding to a daily intake of 288, 360, 432, 504 and 576 mg at peak intake). Egg production, specific gravity and egg wt were monitored from 24 to 40 wk of age and tibia relative strength at 45 weeks. A retention study was performed at 31 wk of age to determine Ca and P balance. No differences were noted in breeder bone integrity due to NPP intake, though eggs per hen housed and egg shell quality were affected. The breeders fed 288 mg NPP produced the largest number of eggs. The % P retention showed a positive linear response to increasing dietary NPP for breeders fed large particle limestone; but no response in hens fed small particle limestone. The amount of P excreted was increased with P intake but was minimized for hens fed large particle limestone. The amount of Ca excreted was significantly increased with increasing P intake. There was a significant linear increase in excreta Ca and linear decrease in % Ca retention for breeders fed increasing P intake along with small particle calcium but the amount of Ca excreted and % Ca retention was not statistically impacted by particle size. Feeding breeders large particle calcium carbonate increased the egg weight but did not significantly improve shell quality or tibia bone strength. The increased egg weight response for breeders fed large particle calcium carbonate in this short term experiment may have reduced the opportunity for large particle Ca to significantly improve egg shell quality. It can be concluded that particulate Ca sources can improve breeder performance and that dietary levels as low as 0.20% NPP (288 mg/day NPP intake) can be fed without impacting breeder performance; however dietary levels of >0.25%NPP (360 mg/day NPP intake) ensure adequate skeletal integrity.

ASCI-ID: 101-1635

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Effect of Different Levels of Dietary Crude Protein on Growth Performance, Body Composition of Broiler Chicken and Low Protein Diet in Broiler Chicken

International Journal of Poultry Science, 2015, 14(5), 285-292.

Growth Performance and Gut Development of Japanese Quails (Coturnix coturnix japonica) Fed Diets with Different Ratio of Mash and Pellet

International Journal of Poultry Science, 2015, 14(6), 359-363.

Effect of Different LED Light Colors on Development of the Reproductive System of Quails

International Journal of Poultry Science, 2015, 14(7), 383-386.

Effect of Liquid Nanocapsule Level on Broiler Performance and Total Cholesterol

International Journal of Poultry Science, 2015, 14(7), 403-406.

On Top Dose of Vitamin D as the Only Source in the First Week of Broilers

International Journal of Poultry Science, 2015, 14(9), 533-536.

Effect of Mangosteen Pericarp Meal and Vitamin E Supplements on the Performance, Blood Profiles, Antioxidant Enzyme and HSP 70 Gene Expression of Laying Hens in Tropical Environment

International Journal of Poultry Science, 2015, 14(10), 570-576.

A Study on Efficacy of Fumaric Acid Supplementation in Diet of Broiler Chicken

International Journal of Poultry Science, 2015, 14(11), 589-594.

Efficacy of Glucomannan-Containing Yeast and Glucomannan Extracted from Amorphophallus oncophyllus Against Aflatoxins in Broiler Chicken

International Journal of Poultry Science, 2015, 14(12), 633-638.

A Review on Positive Effects of Fenugreek as Feed Additive in Poultry Production

International Journal of Poultry Science, 2015, 14(12), 664-669.

Profitable Utilization of Giant Salvinia, Salvinia molesta, as Local Duck Feed

International Journal of Poultry Science, 2016, 15(4), 121-125.

Effects of Mao Pomace Powder as a Dietary Supplement on the Production Performance and Egg Quality in Laying Hens

International Journal of Poultry Science, 2016, 15(4), 139-143.

Effect of Different Combinations of Unboiled and Boiled Tomato Waste in Diet on Performance, Internal Organ Development and Serum Lipid Profile of Broiler Chicken

International Journal of Poultry Science, 2016, 15(7), 283-286.

Effect of Bacillus amyloliquefaciens as a Probiotic on Growth Performance Parameters of Pitalah Ducks

International Journal of Poultry Science, 2017, 16(4), 147-153.

Inclusion of Probiotic on Chicken Performance and Immunity: A Review

International Journal of Poultry Science, 2017, 16(9), 328-335.

Effect of Dietary Supplementation with a Plant Extract Blend on the Growth Performance, Lipid Profile, Immune Response and Carcass Traits of Broiler Chickens

International Journal of Poultry Science, 2017, 16(7), 248-256.

Effect of Dietary Inclusion of a Plant Extract Blend on Broiler Growth Performance, Nutrient Digestibility, Caecal Microflora and Intestinal Histomorphology

International Journal of Poultry Science, 2017, 16(9), 344-353.

Effect of Dietary Fat Sources and Antioxidant Types on Growth Performance and Carcass Quality of Japanese Quails

International Journal of Poultry Science, 2017, 16(11), 443-450.

Growth Performance and Haematological and Serological Assessment of Broiler Chickens Fed Thermally Processed Prosopis juliflora Pod-based Diets

International Journal of Poultry Science, 2018, 17(6), 268-279.

Using Different Feed Additives as Alternative to Antibiotic Growth Promoter to Improve Growth Performance and Carcass Traits of Broilers

International Journal of Poultry Science, 2018, 17(6), 255-261.

The Effect of Spray-Dried Bovine Plasma and Shrimp Hydrolysate on Components of the Immune System and Zootechnical Parameters in Broiler Chickens

International Journal of Poultry Science, 2019, 18(6), 264-275.

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Calcium particle size effects on plasma, excreta, and urinary Ca and P changes in broiler breeder hens

Poultry Science, 2018, (), . DOI: 10.3382/ps/pey043