The effect of dietary crude protein level on amino acid digestibility in early‐weaned pigs

Li, S.; Sauer, W. C.; Fan, M. Z.

doi:10.1111/j.1439-0396.1993.tb00303.x

Cited by 67 publications

(68 citation statements)

References 14 publications

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“…Of the indispensable AA, the differences ranged from 1.9 percentage units for arginine to 3.3 percentage units for threonine. Similar results were found by Li et al (1993). In confrast, experimental period did not affect (P > 0.05) the apparent fecal digestiblities of AA.…”

Section: Resultssupporting

confidence: 78%

“…The pigs were fitted with a simple T-cannula at the distal ileum on day 6 and day 7 after weaning. Detailed descriptions of the preparation of the cannulas and pre-and postoperative care were provided by Li et al (1993) and (Gaberl et al 1995) andO.2O7o mineral premix (Gabert et al 1995 During the experiment, the pigs were fed at 0600, 1400 and 2200 h. Daily feed allowance was 4Vo of BW and was based on the BW ofpigs on the day before the start ofeach experimental period. The average feed intake was 348 t 28 g d-r during period I and425 t 38 g d-l during period 2.…”

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confidence: 99%

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The effect of formic acid and buffering capacity on the ileal digestibilities of amino acids and bacterial populations and metabolites in the small intestine of weanling pigs fed semipurified fish meal diets

Gabert¹,

Sauer²,

Schmitz³

et al. 1995

Can. J. Anim. Sci.

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R. 1995. The effect of formic acid and buffering capacity on the ileal digestibilities of amino acids and bacterial populations and metabolites in the small intestine of weanling pigs fld semipurified fish meal diets. Can. J. Anim. Sci. 75: 615423. An experiment was carried out to examine the effects of supplementa:tion of formic acid to semipurified diets containing fish meal for weanling pigs with low and high buffering capacity on nutrient digestion and bacterial populations and metabolites in the small intestine. Twelve barrows, weaned at 2l d, were fitted with a simple T-cannula at the distil ileum. The BW of the pigs at weaning and at the conclusion of the experiment were.7.8 and 13.8 kg, respectively. The pigs were fed four corn starch-based fish meal diets according to a two-period change-over design' The diets were fbrmulated to contain lSVo CP. For two of the diets, referred to as NCaP, fish meal was the calcium and phosphorus source. For the remaining two diets, referred to as HCaP, the levels of calcium and phosphorus were doubled (compared with the NCap diets) by the addition of calcium carbonate and dicalcium phosphate. The diets were supplemented with (+NCaP and +HCaP) or wit|out (-NCaP and -HCaP) l7o (wt|wt) formic acid. The buffering capacity of the HCaP diets increased (P < 0.05) when the levels of calcium and phosphorus were doubled. The pH of the diets were; 6.25, 4.46,6.13 and 4.59 for the -NCaP' +NCaP, -HCaP and +HCaP diets, respectively. Supplementation of formic acid to diets with low and high buffering capacity did not affect (P > 0.05) the apparent ileal digestibilities of AA. The pH, ammonia and VFA concenfiations, bacterial populations in ileal digesta and the inciderrce of diarrhea were also not affected (P > 0.05). Therefore, the supplementation of l7o (wt/wt) formic acid to corn starch-based fish meal diets with low and high buffering capacity for weanling pigs (7.8-13.8 kg) does not affect nutrient digestibilities and bacterial populations in the small intestine.

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Section: Resultssupporting

confidence: 78%

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confidence: 99%

The effect of formic acid and buffering capacity on the ileal digestibilities of amino acids and bacterial populations and metabolites in the small intestine of weanling pigs fed semipurified fish meal diets

Gabert¹,

Sauer²,

Schmitz³

et al. 1995

Can. J. Anim. Sci.

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“…AmiPig, 2000;GfE, 2008;Rademacher et al, 2009), but are also used in diet formulation for nursery pigs. However, Li et al (1993) reported in early weaned pigs a significant increase in ileal AA digestibilities with age and proposed that piglets may have a limited capacity for CP digestion and AA absorption. In addition, factors such as body weight (BW) and age (Caine et al, 1997a and1997b), and the level of feed intake (Moter and Stein, 2004;Diebold et al, 2005) may affect AID and IAAL B in piglets.…”

Section: Introductionmentioning

confidence: 99%

Determination of standardized ileal crude protein and amino acid digestibilities in protein supplements for piglets

Urbaityte

Mosenthin

Eklund

et al. 2009

Animal

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The objective of the study was to determine standardized ileal digestibilities (SID) of crude protein (CP) and amino acids (AA) in six ingredients commonly used in weanling pigs diets. The ingredients consisted of extruded soybeans (SB e ), high-protein soybean meal (SBM hp ), soy protein concentrate (SPC), hydrolyzed wheat gluten (WG h ), conventional fish meal 1 (FM1) and extracted fish meal 2 (FM2 e ). Each assay feed ingredient was added to a purified cornstarch-based basal diet supplemented with casein and crystalline AA, and SID of CP and AA of assay ingredients were estimated using the difference method. A total of 12 3-week-old barrows were surgically fitted with T-cannulas at the distal ileum. The piglets were allocated to four simultaneous 3 3 3 Latin-square designs with three animals and three periods each, resulting in six observations per assay diet. After 3 to 5 days recovery from surgery, each assay diet was fed at a level of 30 g/kg body weight. Each experimental period consisted of 5 days for adaptation to the assay diets and 2 days for ileal digesta collection. The SID of CP, Lys, Met, Thr and Trp were 73%, 78%, 76%, 66% and 71% in SB e ; 80%, 84%, 87%, 75% and 81% in SBM hp ; 86%, 89%, 89%, 78% and 83% in SPC; 87%, 60%, 88%, 76% and 79% in WG h ; 87%, 92%, 94%, 86% and 86% in FM1; and 79%, 86%, 89%, 80% and 74% in FM2 e , respectively. The greatest SID of indispensable AA were observed for FM1 and SPC (SID > 85% for most indispensable AA), followed by WG h , FM2 e and SBM hp (SID > 80% for most indispensable AA) and the smallest SID were obtained for SB e (SID , 80% for most indispensable AA). The SID of CP and indispensable AA in both types of fish meal, SBM hp and WG h were similar to SPC ( P 5 0.063 to 0.855), except for Arg ( P 5 0.010) and Lys ( P 5 0.001) in WG h , and Phe ( P 5 0.044) and Trp ( P 5 0.037) in FM2 e . The SID of CP and indispensable AA were smaller in SB e compared with SPC ( P , 0.001 to P 5 0.017), except for Lys ( P 5 0.136). The SID of CP and indispensable AA were consistently smaller in FM2 e compared with FM1 with significant differences for CP ( P 5 0.035), Phe ( P 5 0.028) and Trp ( P 5 0.008). Digestibility values measured in the present study can be used to formulate diets for piglets based on standardized ileal digestible contents of CP and AA.

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“…The collection procedure was adapted from Li et al (1993) using plastic tubing attached to the barrel of the cannula by elastic bands. The bags were changed at least every 20 min.…”

Section: Methodsmentioning

confidence: 99%

“…The pigs were fitted with simple T-cannulas at the distal ileum according to the principles described by Li et al (1993). They were kept individually in stainless steel metabolic crates.…”

Section: Animals and Housingmentioning

confidence: 99%

Combinations of feed additives affect ileal fibre digestibility and bacterial numbers in ileal digesta of piglets

Weiss¹,

Eklund²,

Semaškaitė³

et al. 2013

CZECH J ANIM SCI

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ABSTRACT:The study was performed to investigate the effect of combinations of feed additives consisting of either a combination of a probiotic and a prebiotic (synbiotic), or a combination of a probiotic and xylanase on ileal nutrient digestibility, ileal microbial metabolite concentrations, and microbial composition in ileal digesta of weaned piglets. In total, 12 six-week old barrows with an average initial body weight of 7.5 kg, fitted with an ileal T-cannula, were assigned to 3 dietary treatments. The basal diet was supplemented with a combination of 1 g probiotics (Pediococcus acidilactici, Bactocell ® ) and 20 g prebiotics (oligofructose) (Pro/Pre) or 1 g probiotics (Pediococcus acidilactici, Bactocell ® ) and 0.5 g xylanase (Pro/Xyl) per kg diet. The supplementation of Pro/Xyl increased ileal digestibility of neutral detergent fibre (NDF) by 41.6% (P < 0.05). The microbial metabolite concentrations, pH of ileal digesta as well as ileal lactobacilli populations were not affected (P > 0.05) by any of the treatments. Enterobacteriaceae were reduced (P < 0.05) upon supplementation of Pro/Pre, resulting in an increased (P < 0.05) ileal lactobacilli to Enterobacteriaceae ratio compared with piglets fed the control diet. In conclusion, NDF digestibility was increased following xylanase supplementation, while microbial activity and composition in the ileum were not affected. The synbiotic approach was effective in reducing ileal Enterobacteriaceae numbers.

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The effect of dietary crude protein level on amino acid digestibility in early‐weaned pigs

Cited by 67 publications

References 14 publications

The effect of formic acid and buffering capacity on the ileal digestibilities of amino acids and bacterial populations and metabolites in the small intestine of weanling pigs fed semipurified fish meal diets

The effect of formic acid and buffering capacity on the ileal digestibilities of amino acids and bacterial populations and metabolites in the small intestine of weanling pigs fed semipurified fish meal diets

Determination of standardized ileal crude protein and amino acid digestibilities in protein supplements for piglets

Combinations of feed additives affect ileal fibre digestibility and bacterial numbers in ileal digesta of piglets

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