Phytasic activity and phytic P content, which are important factors in determining the availability of P, were measured in 56 wheat samples. The different agronomic and genetic factors which could have an influence on these two variables were studied, specifically N and/or P fertilisation, date of h
Wheat Phosphorus Availability: 2—In VivoStudy in Broilers and Pigs; Relationship with Endogenous Phytasic Activity and Phytic Phosphorus Content in Wheat
✍ Scribed by Barrier-Guillot, Bruno; Casado, Paula; Maupetit, Pierre; Jondreville, Catherine; Gatel, François; Larbier, Michel
- Book ID
- 102647640
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 516 KB
- Volume
- 70
- Category
- Article
- ISSN
- 0022-5142
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✦ Synopsis
In order to reduce the P concentration in manure, P availability in different plant feedstuffs should be determined. Wheat P availability has been studied by the digestive balance technique on broilers and pigs. Nineteen wheat samples were tested on broilers, giving a mean P retention of 57% (45-7070). P retention was observed to be linearly associated with the endogenous phytasic activity in wheats (r = 0-58; P < 0-05). This variability in P retention cannot be satisfactorily explained by the phytic P content of wheat. Four wheat samples were tested on pigs, giving a mean apparent P digestibility of 40%.
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