scholarly journals Microbial phytase supplementation for improving availability of plant phosphorus in the diet of the growing pigs

1990 ◽  
Vol 62 (5) ◽  
pp. 435-443
Author(s):  
Matti Näsi
Keyword(s):  
Aspergillus Niger ◽  
Soybean Meal ◽  
Growing Pigs ◽  
Apparent Digestibility ◽  
Inorganic P ◽  
Microbial Phytase ◽  
Total P

The effect of a phytase supplement produced by Aspergillus niger on phytinphosphorus availability for pigs on phytase deficient maize-soybean meal diets was measured in two digestibility and balance experiments involving twelve growing pigs. Apparent digestibility of P in diets without inorganic-P supplementation or with low addition (0.18 of total P) was significantly lower than in the control diets (0.16 and 0.23 vs. 0.42; P

scholarly journals Effect of microbial phytase on apparent digestibility and retention of phosphorus and nitrogen in growing pigs

2011 ◽  
Vol 51 (No. 10) ◽  
pp. 437-443 ◽  
Author(s):  
P. Patráš ◽  
S. Nitrayová ◽  
A. Sommer ◽  
J. Heger
Keyword(s):  
Latin Square ◽  
Growing Pigs ◽  
Apparent Digestibility ◽  
Ileal Digestibility ◽  
Protein Deposition ◽  
P Concentration ◽  
Microbial Phytase ◽  
Lower Protein ◽  
Net Flux ◽  
Total P

Six female pigs of approximately 50 kg BW, fitted with simple T-cannula in the terminal ileum, were used to study the effect of microbial phytase on apparent total tract digestibility and retention of P and N. Three P-adequate diets (digestible P concentration 2.3 g/kg) containing barley (B), soybean meal (S) or their mixture (BS) with or without phytase supplement (1 000 FTU/kg) were fed to pigs using a 6 × 6 Latin square design. The addition of phytase increased (P < 0.05) apparent total P digestibility of diets S and BS from 56.5 and 57.2% to 69.0 and 65.2%, respectively, and apparent plant P digestibility of the same diets from 41.3 and 50.0% to 60.5 and 60.0%, respectively. An insignificant improvement in total and plant P digestibilities was found in diet B. Phytase supplementation reduced (P < 0.05) P excretion in pigs fed diets S and BS by 25 and 14%, respectively. As compared with diets S and BS, urinary P excretion in pigs fed diet B was much higher, which suggests a lower requirement for available P due to the lower protein deposition and growth rate. Phytase supplementation had no effect on digestibility or retention of N. In all three diets, total tract P digestibility was lower (P < 0.05) than ileal digestibility thus indicating a net flux of P into the large intestine.  

scholarly journals Effect of two microbial phytase preparations on phosphorus utilisation in broilers fed maize-soybean meal based diets

2001 ◽  
Vol 10 (1) ◽  
pp. 19-26 ◽  
Author(s):  
J. VALAJA ◽  
S. PERTTILÄ ◽  
K. PARTANEN
Keyword(s):  
Aspergillus Niger ◽  
Trichoderma Reesei ◽  
Soybean Meal ◽  
Broiler Chickens ◽  
Control Diet ◽  
Basal Diet ◽  
Positive Control ◽  
Negative Control ◽  
Inorganic P ◽  
Microbial Phytase

The present study was carried out to determine the effect of two microbial phytases, Aspergillus niger (FINASEâ FP-500, 291 PU (phytase units)/g) and Trichoderma reesei phytase (FINASEâ P, 5880 PU/g) on phosphorus (P) and calcium (Ca) utilisation and ileal P and Ca digestibility in broiler chickens fed diets based on maize and soybean meal. A total of 96 Ross broiler chickens housed four birds to a cage were used. Four dietary treatments consisted of a positive control supplemented with dicalcium phosphate (17 g/kg), a negative control without inorganic P, basal diet without inorganic P supplemented with Aspergillus niger phytase (2.6 g/kg) and basal diet without inorganic P supplemented with Trichoderma reesei phytase (0.13 g/kg). Both phytases provided 750 PU/kg feed. P retention per unit intake was lowest and P excretion highest in birds fed the positive control diet with inorganic P (P

Effect of supplementary Aspergillus niger phytase in diets for piglets on their performance and apparent digestibility of phosphorus

1992 ◽  
Vol 55 (3) ◽  
pp. 425-430 ◽  
Author(s):  
S. Beers ◽  
A. W. Jongbloed
Keyword(s):  
Aspergillus Niger ◽  
Average Daily Gain ◽  
Live Weight ◽  
Basal Diet ◽  
Apparent Digestibility ◽  
Feeding Trial ◽  
Daily Food ◽  
Microbial Phytase ◽  
Daily Gain ◽  
Aspergillus Niger Phytase

AbstractA total of 384 piglets from a three-way cross Yorkshire ♂ × (Finnish Landrace ♂ × Dutch Landrace♀) ♀ in the live-weight range of 11 to 25 kg were used in a feeding trial. The effect of supplementary microbial phytase from Aspergillus niger var. Van Tieghem on performance (average daily gain (ADG), average daily food intake (ADFI) and food conversion ratio (FCR)) and apparent digestibility of total phosphorus (P), in comparison with a non-supplemented basal diet or a diet supplemented with one or two levels of monocalcium phosphate (MCP), were studied.The piglets were allotted to 12 blocks. Within each block, four experimental diets were offered ad libitum for a period of 4 weeks i.e. (1) basal diet; (2) basal diet + 1·0 g P, from MCP per kg diet; (3) basal diet + 1·9 g P, from MCP per kg diet; and (4) basal diet + 1450 phytase units (PTU) per kg diet. The diets, with added chromium III oxide as a marker, were cold pelleted without steam at a temperature not above 60°C to avoid a possible inactivation of the phytase. In all diets the ratio calcium: digestible P was intended to be constant.Adding 1450 PTU of Aspergillus niger phytase enhanced the apparent digestibility of P by proportionately 0·216 when compared with diet 1 and by proportionately 0·100 compared with diet 3. In addition, significantly higher ADG and ADFI and better FCR were noted in pigs receiving supplementary microbial phytase than in pigs on any other treatment. The content of digestible P of the diet with added phytase, however, zvas between the two levels of the diets with added MCP.

Digestibility of threonine from protein concentrates for growing pigs. 2. The digestibility of threonine to the terminal ileum in pigs given six protein concentrates

1988 ◽  
Vol 39 (4) ◽  
pp. 721 ◽  
Author(s):  
J Leibholz ◽  
Y Mollah
Keyword(s):  
Cottonseed Meal ◽  
Soybean Meal ◽  
Terminal Ileum ◽  
Dry Matter ◽  
Fish Meal ◽  
Growing Pigs ◽  
Apparent Digestibility ◽  
Sunflower Meal ◽  
Protein Concentrates ◽  
Meat Meal

Six male Landrace x Large White pigs (25 kg liveweight) were fitted with T-shape cannulae in the terminal ileum. The pigs were fed 1.2 kg dry matter per day containing 4.5 g threonine/kg of diet from continuous belt feeders. The apparent digestibility of dry matter (DM) to the terminal ileum was 0.91, 0.87, 0.85, 0.81, 0.80 and 0.75 for pigs given diets containing milk, fish meal, soybean meal, meat meal, sunflower meal and cotton seed meal respectively. The apparent digestibility of nitrogen (N) to the terminal ileum was 0.87, 0.87, 0.86, 0.86, 0.81 and 0.74 for pigs given diets containing milk, fish meal, soybean meal, sunflower meal, meat meal and cottonseed meal, respectively. The true digestibility of threonine to the terminal ileum was 0.96, 0.95, 0.90, 0.87, 0.80 and 0.66 for the diets containing milk, fish meal, sunflower meal, soybean meal, meat meal and cottonseed meal, respectively.

Soaking increases the efficacy of supplemental microbial phytase in a low-phosphorus corn-soybean meal diet for growing pigs.

1997 ◽  
Vol 75 (5) ◽  
pp. 1292 ◽  
Author(s):  
J Liu ◽  
D W Bollinger ◽  
D R Ledoux ◽  
M R Ellersieck ◽  
T L Veum
Keyword(s):  
Soybean Meal ◽  
Growing Pigs ◽  
Low Phosphorus ◽  
Microbial Phytase

Effects of a microbial phytase on the utilization of native phosphorus by carp in a diet based on soybean meal

1995 ◽  
Vol 31 (10) ◽  
pp. 149-155 ◽  
Author(s):  
A. Schäfer ◽  
W. M. Koppe ◽  
K.-H. Meyer-Burgdorff ◽  
K. D. Günther
Keyword(s):  
Soybean Meal ◽  
Wheat Starch ◽  
Whole Body ◽  
Native Plant ◽  
Phosphorus Excretion ◽  
Common Carp Cyprinus Carpio ◽  
P Content ◽  
Microbial Phytase ◽  
Total P ◽  
P Supply

The effects of a microbial phytase derived from Aspergillus niger (Natuphos®, BASF AG Ludwigshafen, Germany) on growth, body mineralization, phosphorus retention and phosphorus excretion were investigated in common carp (Cyprinus carpio L.). The test diet used in this study was based on soybean meal, fishmeal and wheat starch resulting in a total P content of 7.3 g/kg dry matter (DM). This diet was supplemented with two levels of monocalciumphosphate (MCP) and additionally with phytase at levels of 500 and 1000 U/kg. Triplicate groups of fish (10 carp/tank) of mean initial weight of 40 g were fed at a level of 20 g/kg W0.8 d−1 for 9 wk at a water temperature of 23°C. There was enhanced weight gain, crude ash content and P content in whole body with increasing dietary P content and phytase supplementation, respectively. The P gain was about 4 g/kg gain when P supply was adequate. Supplementation with phytase improved utilization of native plant P and reduced the P excretion/kg gain significantly by 30% compared with MCP-supplemented diets. This effect of the phytase was confirmed by measurements of the total P digestibility.

scholarly journals Application of a kinetic model to describe phosphorus metabolism in pigs fed a diet with a microbial phytase

2010 ◽  
Vol 148 (3) ◽  
pp. 277-286 ◽  
Author(s):  
R. S. DIAS ◽  
S. LOPEZ ◽  
J. A. MOREIRA ◽  
M. SCHULIN-ZEUTHEN ◽  
D. M. S. S. VITTI ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Specific Radioactivity ◽  
Negative Relationship ◽  
Basal Diet ◽  
Growing Pigs ◽  
Strongly Correlated ◽  
Microbial Phytase ◽  
Liver And Kidney ◽  
P Balance ◽  
Total P

SUMMARYThe objective of the current study was to apply the Vitti–Dias model to investigate phosphorus (P) metabolism in growing pigs fed a diet supplemented with microbial phytase. The basal diet contained maize, defatted rice bran, vegetable oil, soybean meal, limestone, salt and a vitamin and mineral mix. There was no inorganic P in the diet and phytase was added at levels of 253, 759, 1265 and 1748 phytase units (PU)/kg of feed. The compartmental model included four pools of P: (1) gut lumen, (2) plasma, (3) bone and (4) soft tissue. A single dose of 32P was administered, and specific radioactivity was measured in plasma, faeces, bone and soft tissue (muscle, heart, liver and kidney) at different times post-dosing for calculation of P flows between pools. Total P absorbed showed a negative relationship with total P excreted in faeces and was strongly correlated with bone P retention, suggesting that absorbed P was channelled to bone to address its physiological growth. Average efficiency of metabolic utilization of absorbed P was estimated to be 0·94, with 0·52 g/g of total net P balance being accreted in bone and the rest in soft tissue (including muscle and some vital organs). The Vitti–Dias model provided suitable representation of P interchange between compartments (in particular, flows between gut and plasma and partitioning of available P between bone and soft tissue), resulting in estimates of P flows comparable with values calculated from balance data.

Influence of soaking, fermentation and phytase supplementation on nutrient digestibility in pigs offered a grower diet based on wheat and barley

2006 ◽  
Vol 82 (6) ◽  
pp. 853-858 ◽  
Author(s):  
K. Lyberg ◽  
T. Lundh ◽  
C. Pedersen ◽  
J. E. Lindberg
Keyword(s):  
Amino Acids ◽  
Inositol Phosphates ◽  
Period Change ◽  
Fermented Food ◽  
Nutrient Digestibility ◽  
Growing Pigs ◽  
Apparent Digestibility ◽  
Apparent Digestibility Coefficient ◽  
Microbial Phytase ◽  
Dry Food

AbstractThe effects of 1-h soaking, fermentation and phytase supplementation of a pig diet based on wheat and barley on ileal and total tract apparent digestibility in growing pigs fitted with a post valve T-caecum (PVTC)-cannula were studied. Eight animals in a two-period change-over design were used, subjecting four animals to each treatment (dry, soaked, microbial phytase supplemented or fermented diet). Acid insoluble ash was used as an indigestible marker for calculating apparent digestibility coefficients. Fermentation improved (P<0·05) the ileal apparent digestibility coefficients of organic matter (OM), nitrogen and amino acids, while there was no effect of 1-h soaking and phytase supplementation. The total tract apparent digestibility coefficient of OM was also improved by fermentation. The ileal apparent digestibility coefficient of phosphorus (P) was higher for fermentation (P<0·05) than for dry food and 1-h soaking. The total tract apparent digestibility coefficient of P was higher (P<0·05) for treated food (soaked, fermented and supplemented with microbial phytase) compared with dry food. Fermentation improved (P<0·05) the ileal apparent digestibility coefficient of calcium compared with dry and soaked food, and had no effect on the total tract apparent digestibility coefficient of calcium. Food inositol phosphates were affected by treatment (P<0·05), with a reduction of P bound to inositol hexaphosphate (IP6) of 10% in the 1-h soaked food and of 80% in the fermented food. Degradation of IP6in the gastro-intestinal tract of the animals was lower in the fermented food than in the other treatments. The content of neutral-detergent fibre in the food was reduced (P<0·05) in the soaked and fermented food by 4% and 14%, respectively, compared with the dry food. In conclusion, fermentation of food can improve digestibility of OM, degrade IP6and increase ileal digestibility of phosphorus, nitrogen and amino acids.

NUTRIENT UTILIZATION EXPERIMENTS WITH GROWING PIGS FED DIETS CONTAINING FROM 0 TO 20% KELP (NEREOCYSTIS LUETKEANA) MEAL

1977 ◽  
Vol 57 (1) ◽  
pp. 121-129 ◽  
Author(s):  
R. M. BEAMES ◽  
R. M. TAIT ◽  
J. N. C. WHYTE ◽  
J. R. ENGLAR
Keyword(s):  
Organic Matter ◽  
Soybean Meal ◽  
Dry Matter ◽  
Nitrogen Loss ◽  
Nutrient Balance ◽  
Nutrient Utilization ◽  
Growing Pigs ◽  
Apparent Digestibility ◽  
Nereocystis Luetkeana ◽  
Different Levels

Two groups, each of six male castrated pigs, ranging in weight from 37 to 56 kg, were used in a nutrient balance experiment designed to study the effect of adding different levels of kelp (Nereocystis luetkeana) meal to a mineral–vitamin fortified diet of barley and soybean meal. The kelp meal showed a negative nitrogen digestibility ranging from 1.9 to 4.7 g fecal nitrogen loss/100 g dry kelp intake. Organic matter digestibility of kelp, calculated by difference, varied from −26.7 to −0.2%. Kelp ash comprised 46.1% of kelp dry matter and had a high digestibility resulting from high levels of chlorine, potassium and sodium (22.2, 11.7 and 9.1 g/100 g dry kelp, respectively). The apparent digestibility of these ions was 101.5, 90.9 and 87.1%, respectively, in the 20% kelp meal diet. Digestibility of iodine for the four diets containing kelp ranged from 74.8 to 80.1%. It was concluded that any value of kelp meal must be other than as a source of macronutrients.

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