Effects of particle size and pelleting on growth performance, nutrient digestibility, and stomach morphology in finishing pigs2

Wondra, K J; Hancock, Joe D.; Behnke, Keith C.; Hines, Robert H.; Stark, Charles R.

doi:10.2527/1995.733757x

Cited by 265 publications

(229 citation statements)

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“…Feed form: mash v. pellets In agreement with literature data (Wondra et al, 1995), pelleting the diet improved the ATTD of OM and energy, with the greatest impact on the MF and the VHF diets in our study in connection with a better digestibility of fat and some DF fractions. Although our results on fat digestibility need statistical approbation, the important numerical difference in fat digestibility between mash and pelleted diets is consistent with the positive effect of pelleting on fat digestibility in diets with full-fat rapeseed (Skiba et al, 2002), high-oil corn (Noblet and Champion, 2003) or linseed (Noblet et al, 2008).…”

Section: Introduction Of Fibre In Feeds For Pigssupporting

confidence: 79%

“…Consequently, intracellular nutrient contents are released, thus improving OM digestibility. Depending on the heat treatment intensity associated with pelleting treatment, significant improvements in digestibility were found for CP (Wondra et al, 1995;Lahaye et al, 2004), fat (Skiba et al, 2002; -E-mail: Maud.LeGall@rennes.inra.fr Champion, 2003;Xing et al, 2004) or starch (Bengala-Freire et al, 1991), whereas pelleting did not modify the ATTD of NDF and ADF (Stein and Bohlke, 2007). However, to our knowledge, few studies have been carried out to determine the impact of pelleting on the ATTD of nutrients and energy of fibre-rich diets.…”

Section: Introductionmentioning

confidence: 99%

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Influence of dietary fibre level and pelleting on the digestibility of energy and nutrients in growing pigs and adult sows

Gall

Warpechowski

Jaguelin-Peyraud

et al. 2009

Animal

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Two experiments were carried out to investigate the effect of pelleting on the apparent total tract digestibility (ATTD) of energy and nutrients according to the dietary fibre (DF) level in growing pigs (experiment 1) and in adult sows (experiment 2). Four diets based on wheat, barley, maize and soybean meal and supplemented with increased contents of a mixture of wheat bran, maize bran, soybean hulls and sugar beet pulp (116, 192, 268 and 344 g NDF/kg dry matter (DM) in diets 1 to 4) were tested. In experiment 1, 32 growing pigs (62 kg average BW), in two replicates and according to a factorial design, were fed one of the four diets, either as mash or as pellets. The digestibility of energy, organic matter (OM) and all nutrients decreased with DF increasing for both feed forms; the reduction was about 1% for each 1% NDF increase in the diet ( P , 0.001). Pelleting improved moderately the digestibility of energy and OM (11.5% and 11.0%, respectively; P , 0.05) in connection with greater DF (15%; P , 0.05) and fat digestibility (125%). Thus, pelleting improved the digestible energy content of diets on average by 0.3 MJ/kg of feed DM ( P , 0.01). In experiment 2, four adult dry sows (235 kg average BW) were used in a 4 3 4 Latin square design and fed the four diets used in experiment 1 as pellets. The digestibility of energy, OM and macronutrients also decreased with DF increase ( P , 0.001; 20.4% per 1% increase of dietary NDF for energy) while the digestibility of DF (i.e. crude fibre (CF) or ADF) increased ( P , 0.001) or remained at a high level. In conclusion, increasing DF in diets decreases the digestibility of nutrients and energy in pigs and in sows. Although positive, the pelleting impact is minor on the energy and nutrients digestibility of fibre-rich diets in growing pigs, even in high-DF diets.

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Section: Introduction Of Fibre In Feeds For Pigssupporting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Influence of dietary fibre level and pelleting on the digestibility of energy and nutrients in growing pigs and adult sows

Gall

Warpechowski

Jaguelin-Peyraud

et al. 2009

Animal

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“…Similarly, Wondra et al (1995) reported an increase in GE digestibility in finishing pigs when the geometric mean diameter of maize was reduced from 1200 to 400 μm. A reduction in feed particle size facilitates the contact between nutrients and endogenous enzymes and consequently, fine grinding should improve energy digestibility.…”

Section: Soya Bean Meal Source In Piglet Dietsmentioning

confidence: 99%

“…A reduction in geometric mean diameter facilitates the contact between digesta and endogenous enzymes that may improve nutrient digestibility and feed efficiency. However, fine particles increase the fluidity of the stomach contents (Wondra et al, 1995) and might increase the incidence of digestive disturbances.…”

Section: Introductionmentioning

confidence: 99%

Influence of source and micronization of soya bean meal on growth performance, nutrient digestibility and ileal mucosal morphology of Iberian piglets

Berrocoso

Cámara

Rebollar

et al. 2014

Animal

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The effects of inclusion in the diet of different sources of soya bean meal (SBM) on growth performance, total tract apparent digestibility (TTAD) and apparent ileal digestibility (AID) of major dietary components and mucosal ileum morphology were studied in Iberian pigs weaned at 30 days of age. From 30 to 51 days of age (phase I), there was a control diet based on regular soya bean meal (R-SBM; 44% CP) of Argentina (ARG) origin and five extra diets in which a high-protein soya bean meal (HP-SBM; 49% CP) of the USA or ARG origin, either ground (990 μm) or micronized (60 μm), or a soya protein concentrate (SPC; 65% CP) substituted the R-SBM. From 51 to 61 days of age (phase II), all pigs were fed a common commercial diet in mash form. The following pre-planned orthogonal contrasts were conducted: (1) R-SBM v. all the other diets, (2) SPC v. all the HP-SBM diets, (3) micronized HP-SBM v. ground HP-SBM, (4) HP-SBM of ARG origin v. HP-SBM of US origin and (5) interaction between source and the degree of grinding of the HP-SBM. Dietary treatment did not affect growth performance of the pigs at any age but from 30 to 51 days of age, post weaning diarrhoea (PWD) was higher ( P < 0.001) and the TTAD and AID of all nutrients were lower for pigs fed the R-SBM diet than for pigs fed the HP-SBM or the SPC diets. However, no differences between the HP-SBM and the SPC containing diets were detected for any trait. The TTAD of organic matter ( P = 0.07) and gross energy (GE) ( P = 0.05) tended to be higher for the micronized HP-SBM than for the ground HP-SBM and that of GE was higher ( P < 0.05) for US meal than for the ARG meal. Pigs fed R-SBM had lower villus height ( P < 0.01) than pigs fed HP-SBM or SPC but no differences in ileal mucosal morphology were detected between SPC and HP-SBM containing diets. It is concluded that feeding the HP-SBM or SPC-reduced PWD and improved nutrient digestibility and ileal morphology as compared with feeding the R-SBM, but had no effect on pig performance. The inclusion in the diet of added value soya products (micronized SBM or SPC) in substitution of the R-SBM increased the TTAD of all nutrients and reduced PWD but had no advantage in terms of growth performance over the use of ground HP-SBM.

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“…Improved feed efficiency and digestibility of nutrients and energy were reported with fine grinding of major grains such as maize (Reimann et al, 1968;Hedde et al, 1985;Wondra et al, 1995), and sorghum (Owsley et al, 1981). But the optimum particle size is probably dependent on the age of pigs.…”

Section: Introductionmentioning

confidence: 99%

Effects of particle size and extrusion of maize and sorghum on ileal digestibility and growth performance in pigs weaned at 14 and 21 days of age

Chae¹,

Kim²,

Han³

et al. 2000

J. Anim. Feed Sci.

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Two experiments were conducted to compare apparent ileal digestibilities and growth performance in pigs fed ground and extruded maize and sorghum. In Experiment 1, for digestibility, 24 early-weaned pigs (14 d old and 3.2 kg BW; EW) were given a terminal ileum exteriorization, and another 24 conventionally-weaned (CW) piglets (21 d old and 6.3 kg BW) were fitted with simple T-cannulae. An additional 8 piglets were employed for correction of endogenous amino acid excretions. Dietary treatments consisted of six differently processed maize and sorghum diets: 1. maize 900 )Ltm, 2. maize 400 |Um, 3. extruded maize, 4. sorghum 900 [im, 5. sorghum 400 |im, and 6. extruded sorghum. In Experiment 2, 150 piglets (21 d of age and 6.4 kg BW) were allotted to the same dietary treatments and used in a 33-d feeding trial.Reduced particle sizes of the grains from 900 to 400 |Lim tended to improve the apparent ileal digestibilities (AID) of Thr, Val, Leu, and Lys in maize and Thr, Val, and Leu in sorghum for EW, but not for CW piglets. The AID of essential amino acids were higher (P<0.05) in CW than in EW piglets. In true ileal digestibilities (TID) of essential amino acids in tested grains, there was a similar trend with the AID of essential amino acids, with the exception of improvement by 10.7% in EW, and in TID of essential amino acids, respectively, between weaning ages. Extrusion of maize and sorghum did not improve the ileal digestibilities of amino acids, but the digestibility of Met in sorghum was improved (P<0.05) in EW pigs as compared with ground maize and sorghum. Between maize and sorghum, the ileal digestibility of amino acids was similar. During the overall period (d 0 to 33), diets with extruded maize and sorghum reduced ADFI (PO.05) and improved gain/feed (PO.05) by 3%o compared with diets with the ground grains.In conclusion, the ileal digestibility of amino acids in the grains was considerably affected by weaning ages of piglets, while ileal digestibility of amino acids and growth of pigs was not affected by reductions in particle sizes of maize and sorghum from 900 to 400 mm in complex weaner diets.

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Effects of particle size and pelleting on growth performance, nutrient digestibility, and stomach morphology in finishing pigs2

Cited by 265 publications

References 0 publications

Influence of dietary fibre level and pelleting on the digestibility of energy and nutrients in growing pigs and adult sows

Influence of dietary fibre level and pelleting on the digestibility of energy and nutrients in growing pigs and adult sows

Influence of source and micronization of soya bean meal on growth performance, nutrient digestibility and ileal mucosal morphology of Iberian piglets

Effects of particle size and extrusion of maize and sorghum on ileal digestibility and growth performance in pigs weaned at 14 and 21 days of age

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