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Effects of dietary calcium and available phosphorus levels and phytase supplementation on performance, bone mineral density, and serum biochemical bone markers in aged white egg-laying hens

Published: August 24, 2021

Summary

INTRODUCTION Phytase is commonly supplemented in laying hen diets to increase the bioavailability of P and Ca. Dietary phytase supplementation increases Ca and P digestibility (Beutler, 2009), egg production, BW, eggshell quality, and bone quality in egg-laying hens (Hughes et al., 2009; Pelicia et al., 2009) and increases blood myo-inositol concentration in broilers (Sommerfeld et al., 2018)....

Related topics:

#Minerals in poultry nutrition

#Enzymes in poultry nutrition

Authors:

Abiodun Bello

IFF - International Flavors & Fragrances

yueming dersjant-li

IFF - International Flavors & Fragrances

Doug Korver

University of Alberta

1Recommendations

10Comments

261Views

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Comment

George Entz

27 de agosto de 2021

Hello, Were the birds fed different particle size Cal. and if so, what was the ratio? And was it consistent across all diets?

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Doug Korver

University of Alberta

28 de agosto de 2021

Hello George: We fed 1/3 small particle and 2/3 large particle across all treatments.

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George Entz

29 de agosto de 2021

Hello Doug Korver, Thank-you for your response. Looking forward to your 4th webinar for PIP as well, as I think you'll cover this subject as well then,maybe? Kind Regards,

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Satish Sharma

Anthem Biosciences Private Limited

30 de agosto de 2021

Dear All,

I have experienced usage of Vitamin K2 MK7 ( Menaquinone - analog of vitamin K ) along with Inorganic calcium improvising deposition of calcium on Bones.

I understand that Menaquinone metabolizes efficient absorption of Calcium at the right places. An enriched formula containing Calcium, Phytase with Vitamin K2 M7 is a perfect recipe for bone health.

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Mike Stahl

14 de febrero de 2023

Satish Sharma we are currently using vitamin k3 Menadione sodium bisulfite and Menadione nicotinamide bisulfite is the one you are referring to different? what have you seen is the optimum inclusion level in layers ,,, per finish ton of feed of added k3 Thanks Mike

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Satish Sharma

Anthem Biosciences Private Limited

6 de abril de 2023

Satish Sharma Hi Mike, Apologies for delay in reply. We have seen good results with Menaquinone inclusion at ppm levels in the feed. Will be delighted to work on your queries. Satish.s@anthembio.com

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Mike Stahl

13 de febrero de 2023

Hi Doug can you send me your email please Thanks Mike Stahl i need to ask you a question on one of your research projects

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Doug Korver

University of Alberta

14 de febrero de 2023

Mike Stahl Hi Mike, good to hear from you. Feed intake ranged from 97 to 113 g per bird per day. If you have the original paper, this information can be found in Table 3. We didn't report feed intake before and after the trial, other than to make sure the birds were eating and producing well before the start of the trial. If you don't have the original paper, you can send me an email at doug.korver@ualberta.ca.

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Mike Stahl

14 de febrero de 2023

Doug Korver thanks Doug got it Mike

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Mike Stahl

13 de febrero de 2023

Hi, Doug

Great research,

Maybe I missed it: what was the feed intake of those birds, and between the groups, before and after the trial?

Thanks, Mike

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