The effect of supplementary Aspergillus niger phytase in diets for pigs on concentration and apparent digestibility of dry matter, total phosphorus, and phytic acid in different sections of the alimentary tract

Jongbloed, A.W.; Mroz, Z.; Kemme, P.A.

doi:10.2527/1992.7041159x

Cited by 254 publications

(205 citation statements)

References 13 publications

Supporting

Mentioning

157

Contrasting

Unclassified

Order By: Relevance

“…This finding again supports the view that the large intestine does not play a significant role in the absorption of exogenous P (Jongbloed et al, 1992;Liu et al, 2000;Fan et al, 2001;Shen et al, 2002;Ajakaiye et al, 2003). True P digestibility values determined in this study (58%) suggest that an average of 58% of total P in brown rice could be digested and absorbed by weanling pigs.…”

Section: Discussionsupporting

confidence: 88%

True phosphorus digestibility and the endogenous phosphorus outputs associated with brown rice for weanling pigs measured by the simple linear regression analysis technique

Yang

Yin

et al. 2007

Animal

View full text Add to dashboard Cite

The objectives of this study were to determine true phosphorus (P) digestibility, degradability of phytate-P complex and the endogenous P outputs associated with brown rice feeding in weanling pigs by using the simple linear regression analysis technique. Six barrows with an average initial body weight of 12.5 kg were fitted with a T-cannula and fed six diets according to a 6 £ 6 Latin-square design. Six maize starch-based diets, containing six levels of P at 0.80, 1.36, 1.93, 2.49, 3.04, and 3.61 g/kg per kg dry-matter (DM) intake (DMI), were formulated with brown rice. Each experimental period lasted 10 days. After a 7-day adaptation, all faecal samples were collected on days 8 and 9. Ileal digesta samples were collected for a total of 24 h on day 10. The apparent ileal and faecal P digestibility values of brown rice were affected ( P , 0.01) by the P contents in the assay diets. The apparent ileal and faecal P digestibility values increased from 248.0 to 36.7% and from 235.6 to 40.0%, respectively, as P content increased from 0.80 to 3.61 g/kg DMI. Linear relationships ( P , 0.05), expressed as g/kg DMI, between the apparent ileal and faecal digestible P and dietary levels of P, suggested that true P digestibility and the endogenous P outputs associated with brown rice feeding could be determined by using the simple regression analysis technique. There were no differences ( P . 0.05) in true P digestibility values (57.7^5.4 v. 58.2^5.9%), phytate P degradability (76.4^6.7 v. 79.0^4.4%) and the endogenous P outputs (0.812^0..096 v. 0.725^0.083 g/kg DMI) between the ileal and the faecal levels. The endogenous faecal P output represented 14 and 25% of the National Research Council (1998) recommended daily total and available P requirements in the weanling pig, respectively. About 58% of the total P in brown rice could be digested and absorbed by the weanling pig. Our results suggest that the large intestine of the weanling pigs does not play a significant role in the digestion of P in brown rice. Diet formulation on the basis of total or apparent P digestibility with brown rice may lead to P overfeeding and excessive P excretion in pigs.

show abstract

Section: Discussionsupporting

confidence: 88%

True phosphorus digestibility and the endogenous phosphorus outputs associated with brown rice for weanling pigs measured by the simple linear regression analysis technique

Yang

Yin

et al. 2007

Animal

View full text Add to dashboard Cite

show abstract

“…Growth performance, rib mineralization and P digestibility were all improved when phytase was added to the diet. This is in agreement with studies in the literature which have demonstrated increased daily gains and feed intakes (Beers and Jongbloed, 1992;Jongbloed et al, 1992;Qian, 1996, Yi et al, 1996), increased bone breaking strength or shear force Yi et al, 1996) and increases in P digestibility or retention (Hoppe et al, 1992;Lei et al, 1993a,b;Mroz et al, 1994;Kornegay and Qian, 1996;Yi et al, 1996) when pigs are fed diets supplemented with phytase.…”

Section: Discussionsupporting

confidence: 81%

“…Several studies have demonstrated that the addition of microbial phytase improves P digestibility and therefore decreases P excretion by 25 to 50% when the level of supplemental P is lowered (Simons et al, 1990;Jongbloed et al, 1992;Kornegay, 1995).…”

Section: Introductionmentioning

confidence: 99%

Phosphorus equivalency value of microbial phytase in weanling pigs fed a maize-soyabean meal based diet

Radcliffe¹,

Kornegay²

1998

J. Anim. Feed Sci.

View full text Add to dashboard Cite

Ninety-six crossbred pigs with an average initial weight of 10.3 kg were used in a 4-wk experiment to investigate the P equivalency value of microbial phytase in weanling pigs using performance, rib mineralization and faecal digestibility measurements. A 19% CP, maize-soyabean meal basal diet low in P (0.35 %) and Ca (0.50 %) was fed. Diets 1, 2, 3, and 4 contained 0, 167, 333, and 500 units (U) of added Natuphos® phytase per kg of diet, respectively. Diets 5, 6, and 7 contained no added phytase, and 0.40, 0.45, and 0.50 % P, respectively. Body weight and pen feed consumption were measured weekly. During wk 4, pen faecal samples were collected twice daily for 5 d for determination of P, Ca and DM digestibilities. At the end of wk 4, the barrow from each pen (n = 48) was killed for collection of tenth ribs for determination of rib shear force, and ash content. Adding phytase to low P diets linearly increased (P < 0.02 to 0.001) ADG, rib shear force, rib ash weight and ash percent. Added P linearly increased (P < 0.02 to 0.001) ADG, rib shear force, rib ash weight, and ash percent, Ca and P digestibility and digestible Ca and P. Based on phytase and P linear or nonlinear response equations for ADG, P digestibility, rib ash weight and rib shear force, 500 U/kg of microbial phytase was equivalent to 1.03, 0.78, 0.89, and 0.69 g of inorganic P, respectively. The average equivalency of 500 U/kg of phytase was 0.84 g of P per kg of diet.

show abstract

“…Dietary phosphorus solubilisation has been studied in monogastric animals [11,21,27,38], but only few authors have studied ruminants. Sixty percent of phosphorus waste of animal origin come from ruminants [34].…”

Section: Introductionmentioning

confidence: 99%

Ruminal phosphorus availability from several feedstuffs measured by the nylon bag technique

Bravo

Meschy

Bogaert³

et al. 2000

Reprod. Nutr. Dev.

View full text Add to dashboard Cite

-The present study was aimed at determining rumen phosphorus availability of some feedstuffs assessed with the nylon bag technique: forage (alfalfa), cereals (control-C wheat, formaldehyde treated-FT wheat, barley, corn), cereal by-products (wheat bran, wheat distillers, corn distillers) and meals (C and FT soya bean meals, rapeseed meals and sunflower meals). Rumen phosphorus availability was not uniform amongst the feedstuffs, varying from 33.1% (FT rapeseed meal) to 84.7% (C wheat). Alfalfa phosphorus release kinetics showed high bacterial phosphorus contamination. Technological treatments affected phosphorus content of by-products by either increasing (wheat bran and distillers) or decreasing (corn distillers) after germ extraction from the seed. Formaldehyde treatment decreasing rumen phosphorus availability (from 77.2% vs. 89.4% for wheat to 33.1% vs. 64.4% for the rapeseed meal) may depreciate the phosphorus nutritional value of FT meals. availability / feedstuff / phosphorus / rumenRésumé -Disponibilité ruminale du phosphore de certaines matières premières mesurée à l'aide de la méthode des sachets nylon. Cet article décrit la détermination, par la méthode des sachets nylon, de la disponibilité ruminale du phosphore d'un fourrage (luzerne déshydratée), de céréales (blé, blé tanné, orge, maïs), de sous-produits de céréales (son et drêches de blé, drêches de maïs) et de tourteaux (soja et soja tanné, colza et colza tanné, tournesol et tournesol tanné). La disponibilité ruminale du phosphore est très variable : de 33,1 % (tourteau de colza tanné) à 84,7 % (blé). La cinétique de libération du phosphore de la luzerne indique une importante contamination par le phosphore bactérien. Les traitements technologiques influencent la teneur en phosphore. L'extraction du germe enrichit (son et drêches de blé) ou appauvrit (drêche de maïs) en phosphore les sous-produits par rapport à la céréale. Le tannage au formol, diminuant la disponibilité ruminale du phosphore (de 77,2 % vs. 89,4 %, blé à 33,1 % vs. 64,4 %, tourteau de colza), semble pénaliser la valeur nutritionnelle du phosphore des tourteaux tannés. disponibilité / matière première / phosphore / rumen

show abstract

The effect of supplementary Aspergillus niger phytase in diets for pigs on concentration and apparent digestibility of dry matter, total phosphorus, and phytic acid in different sections of the alimentary tract

Cited by 254 publications

References 13 publications

True phosphorus digestibility and the endogenous phosphorus outputs associated with brown rice for weanling pigs measured by the simple linear regression analysis technique

True phosphorus digestibility and the endogenous phosphorus outputs associated with brown rice for weanling pigs measured by the simple linear regression analysis technique

Phosphorus equivalency value of microbial phytase in weanling pigs fed a maize-soyabean meal based diet

Ruminal phosphorus availability from several feedstuffs measured by the nylon bag technique

Contact Info

Product

Resources

About