Cereal grain fiber composition modifies phosphorus digestibility in grower pigs.
J Anim Sci
; 100(6)2022 Jun 01.
Article
en En
| MEDLINE
| ID: mdl-35569054
Increased fermentable carbohydrates (e.g., ß-glucan, amylose) may increase intestinal endogenous phosphorus (P) losses and thereby reduce P digestibility. The study assessed effects of cereal grains varying in fermentable carbohydrates on non-phytate-P and phytate-P. Phytate is the major binding form of P in plant seed and is incompletely degraded. Seven barrows cannulated at the terminal ileum were fed diets containing 80% of one of five cereal grains: 1) high-fermentable, high-ß-glucan, hull-less barley; 2) high-fermentable, high-amylose, hull-less barley; 3) moderate-fermentable, hull-less barley; 4) low-fermentable, hulled barley; and 5) low-fermentable wheat. Diet ileal digestibility of P was greater for low- and moderate-fermentable grain than high-fermentable grain, and diet total tract digestibility of P was greater for moderate-fermentable barley than high ß-glucan barley. Total tract digestibility of phytate-P was greater for high ß-glucan than low-fermentable barley. Total tract P release was greater for high-fermentable barley, and wheat than moderate- and low-fermentable barley. In conclusion, cereal grains high in fermentable fiber had lower diet ileal and total tract digestibility of P resulting in greater excretion of P, but greater total tract digestibility of phytate-P. Carbohydrate fermentation, thus, increases total tract P release from phytate-P degradation.
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Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Hordeum
/
Fósforo Dietético
/
Beta-Glucanos
País/Región como asunto:
America do norte
Idioma:
En
Revista:
J Anim Sci
Año:
2022
Tipo del documento:
Article
País de afiliación:
Canadá