Effect of Grain Particle Size and Pellets on Development of Gastric Ulcers in Swine

Flatlandsmo, Knut; Slagsvold, P.

doi:10.2527/jas1971.3361263x

Cited by 23 publications

(14 citation statements)

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“…This is similar to Flatlandsmo and Slagsvold (1971) and Wondra et al (1995b), who both reported that pelleting diets increased the incidence of ulcers in finishing pigs. It appears that continuously feeding a pelleted diet increased the ulceration index, which led to an increased number of pigs needing to be removed from the study.…”

Section: Growth and Carcasssupporting

confidence: 72%

Evaluating pellet and meal feeding regimens on finishing pig performance, stomach morphology, and carcass characteristics1,2

Jong

DeRouchey

Tokach

et al. 2016

Journal of Animal Science

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Section: Growth and Carcasssupporting

confidence: 72%

Evaluating pellet and meal feeding regimens on finishing pig performance, stomach morphology, and carcass characteristics1,2

Jong

DeRouchey

Tokach

et al. 2016

Journal of Animal Science

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“…Several investigators have reported that mean particle size of the diet affects gastric lesions in finishing pigs (Flatlandsmo and Slagsvold, 1971;Hedde et al, 1985;Wondra et al, 1995a,b). Others have suggested that small particle size increases fluidity of stomach contents and increases the concentration of pepsin in stomach digesta (Reimann et al, 1968;Maxwell et al, 1970Maxwell et al, , 1972.…”

Section: Resultsmentioning

confidence: 99%

“…Other researchers have reported that feeding pelleted diets or pelleted diets that were reground increased the incidence of ulcers in pigs (Chamberlain et al, 1967;Pocock et al, 1969;Flatlandsmo and Slagsvold, 1971). However, no data were found that addressed the effects of mill type used to grind the grain before pelleting.…”

Section: Resultsmentioning

confidence: 99%

Effects of mill type and particle size uniformity on growth performance, nutrient digestibility, and stomach morphology in finishing pigs.

Wondra

Hancock

Behnke

et al. 1995

Journal of Animal Science

102

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The effects of particle size uniformity and mill type used to grind corn were determined in three experiments. In Exp. 1, 120 pigs (47.8 kg initial BW) were used. Treatments were 1) a 40:60 blend of coarsely rolled (in a roller mill) and finely ground (in a hammermill) corn with a large standard deviation (sgw) of particle size (sgw of 2.7), 2) hammermilled corn with an sgw of 2.3, and 3) roller-milled corn with an sgw of 2.0. Mean particle size of the corn was approximately 850 microns for all treatments. Growth performance was not affected (P > .11); but, stomach keratinization tended to be less severe (P < .08) and apparent nutrient digestibilities were greater (P < .008) when the sgw was smaller. In Exp. 2, 128 pigs (55.3 kg initial BW) were used. Treatments were corn ground in a hammermill and a roller mill to 800 and 400 microns. Pigs fed corn ground to 400 microns were more efficient (P < .004) and had greater apparent digestibilities of DM, N, and GE (P < .001) than pigs fed corn ground to 800 microns. Mill type did not affect growth performance (P > .40), but pigs fed corn ground in the roller mill had greater apparent nutrient digestibilities (P < .008). In Exp. 3, 128 pigs (67.3 kg initial BW) were used. Treatments were corn ground to 400 microns in a hammermill and a roller mill fed in meal and pelleted forms. Pigs fed pelleted diets had greater ADG (P < .003) and gain/feed (P < .03) but also had greater incidence of ulcers (P < .04). Pigs fed roller-milled corn were more efficient (P < .05) and had a lower incidence of ulcers (P < .04), but diets with hammermilled corn had lower sgw and greater apparent digestibilities of nutrients (P < .02). Our results suggest that mill type had inconsistent effects on growth performance, but more uniform particle sizes consistently gave greater nutrient digestibilities.

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“…An increase of 4-6% in gain to feed ratio (G:F) has been reported when pigs are fed pellet diets vs. meal diets via conventional dry feeders (Wondra et al 1995b). Besides the advantages of less separation, easier handling, less dust, and better hygienic quality (Flatlandsmo and Slagsvold 1971), pellet feed seems to improve growth and feed efficiency (Braude 1967;Vanschoubroeck et al 1971;Hanke et al 1972;Baird 1973;Braude and Rowell 1966). However, pellet feed does have disadvantages.…”

Section: Introductionmentioning

confidence: 99%

“…However, pellet feed does have disadvantages. It is a contributor to oesophagogastric changes (oesophagogastric parakeratosis, erosions, and ulcers) in the stomach of pigs (Gamble et al 1967;Flatlandsmo and Slagsvold 1971;Kim et al, 2002b). With the knowledge of this negative influence of whole, Pettersson and Bjórklund (1976) pellets on the mucous membrane of the stomach and the relatively high production cost, interest in crumble feed has increased.…”

Section: Introductionmentioning

confidence: 99%

Effect of crumbled diet on growth performance, market day age and meat quality of growing-finishing pigs

Nguyen

Park

Kim

2016

Journal of Applied Animal Research

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This study was conducted to determine the effect of crumbled diet on growth performance, market day age, and meat quality of growing-finishing pigs. A total of 120 crossbred pigs [(Landrace × Yorkshire) × Duroc] with an average initial body weight (BW) of 25.89 ± 1.93 kg at 68 days of age were randomly allotted to 2 experimental diets based on initial BW (15 replicate pens per treatment, 4 pigs per pen; 2 barrows and 2 gilts). The trial lasted for 120 days. Dietary treatments included: (1) T1 (mash diet); (2) T2 (crumble diet). During the overall study period pigs fed the T2 (crumble diet) had significantly greater (P < .05) average daily gain (ADG) and gain to feed ratio (G:F). Moreover, the number of pigs reaching market age at day 177 was higher in pigs fed crumble diet than mash diet. No significant differences were observed in back-fat thickness, meat colour, sensory evaluation, cooking loss, drip loss, water holding capacity, and longgissimus muscle area (LMA) between T1 and T2 groups. Our results revealed that the growth performance was significantly enhanced in pigs fed with the crumble diet. The crumble diet reduced market day age and meat quality of growing-finishing pigs.ARTICLE HISTORY

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Effect of Grain Particle Size and Pellets on Development of Gastric Ulcers in Swine

Cited by 23 publications

References 0 publications

Evaluating pellet and meal feeding regimens on finishing pig performance, stomach morphology, and carcass characteristics1,2

Evaluating pellet and meal feeding regimens on finishing pig performance, stomach morphology, and carcass characteristics1,2

Effects of mill type and particle size uniformity on growth performance, nutrient digestibility, and stomach morphology in finishing pigs.

Effect of crumbled diet on growth performance, market day age and meat quality of growing-finishing pigs

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