Influence of Various Nutritional Factors and Physical Form of Feed on Esophagogastric Ulcers in Swine

Mahan, D. C.; Pickett, R. A.; Perry, T. W.; Curtin, T. M.; Featherston, W. R.; Beeson, W. M.

doi:10.2527/jas1966.2541019x

Cited by 70 publications

(22 citation statements)

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“…There was no relationship between ulcer score and percent moisture of stomach digesta (Table 3), contrary to the reports by Mahan et al (1966), Reimann et al (1968), Maxwell et al (1970) and Maxwell et al' (1972) ' It was reported in these previous studies that pigs with ulcers had a higher percent moisture, with an increase in fluidify' In these earlier studies, pigs were killed and the stomachs were removed immediately (Mahan et al 1966) or the stomachs of the pigs were fistulated (Reimann et al 1968;Maxwell et al 1970Maxwell et al , 1972.In the present study, pigs were killed in a commercial slaughter plant where they had access to water'…”

contrasting

confidence: 76%

“…Les concentrations d'acides biliaires dans le digesta stomacal 6taient plus fortes chez les porces recevant I'alimint t6moin, sans m6latonine (P < 0,05) et' en outre, elles 6taient reliees positivement (P < 0,05) avec le degre de gravit6 des ulceres' Mots cl6s: Porc, ulcdre, regime alimentaire, m6latonine, acides biliaires Dietary particle size has been implicated as a major factor in oesophagogastric ulcers in swine. A smaller particle size has been shown to increase the incidence and severity of gastric ulcers (Mahan et al 1966;Maxwell et al 1967Maxwell et al ,1970Maxwell et al , 1972Pickett et al 1969;Hedde et al 1985). A smaller dietary particle size may affect the prevalence of ulcers due to an increase in pepsin activity and increased acidity in the stomach contenti.…”

mentioning

confidence: 99%

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The effect of graded levels of melatonin on performance and gastric ulcers in pigs

Ayles¹,

Ball²,

Friendship³

et al. 1996

Can. J. Anim. Sci.

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(p < 0,05). n n'y avait pas de diff6renc! quant au GMQ eties traitements ir la melatonine' bien qu'ir 1a dose de To mg tg-l d'aliment on'observaii une diminution de la prise alimentaire. Les concentrations d'acides biliaires dans le digesta stomacal 6taient plus fortes chez les porces recevant I'alimint t6moin, sans m6latonine (P < 0,05) et' en outre, elles 6taient reliees positivement (P < 0,05) avec le degre de gravit6 des ulceres'

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contrasting

confidence: 76%

mentioning

confidence: 99%

The effect of graded levels of melatonin on performance and gastric ulcers in pigs

Ayles¹,

Ball²,

Friendship³

et al. 1996

Can. J. Anim. Sci.

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“…However, Penny et al (1993) suggested that wheat-based diets should be coarsely ground to avoid ulcer development in finishing pigs. It is known that a combination of stressful factors is needed for pigs to develop stomach ulcers (Mahan et al, 1966), and, thus, blaming an increased incidence of stomach lesions on wheat-based diets and moderate particle sizes is not warranted. Experiment 3.…”

Section: Resultsmentioning

confidence: 99%

Enzyme supplementation and particle size of wheat in diets for nursery and finishing pigs.

Mavromichalis

Hancock

Senne

et al. 2000

Journal of Animal Science

114

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Three experiments were conducted to determine the effects of enzyme supplementation and particle size of wheat-based diets on growth performance and nutrient digestibility in nursery and finishing pigs. In Exp. 1, 180 weaned pigs (5.7 kg and 21 d of age) were fed diets in a 35-d growth assay without or with a Trichoderma longibrachiatium enzyme product (4,000 units of xylanase activity per gram of product) and with wheat ground to mean particle sizes of 1,300, 600, or 400 microm. Enzyme supplementation had no effect on ADG or gain/feed (P > 0.32), but there was a trend (P < 0.10) for greater digestibility of DM (d 6) in enzyme-supplemented diets. A particle size of 600 microm supported the greatest overall gain/feed (quadratic effect, P < 0.01). An interaction of enzyme supplementation with particle size occurred; gain/feed was improved (P < 0.01) with enzyme supplementation at the coarse (1,300 microm) particle size but not when the wheat was ground to 600 or 400 microm. In Exp. 2, 160 finishing pigs (67 kg) were fed a diet without or with the same enzyme used in Exp. 1 and wheat ground to 1,300 or 600 microm. No interactions occurred between enzyme supplementation and particle size of the wheat (P > 0.15). However, there were trends for greater gain/feed (P < 0.10) during the 67- to 93-kg phase of the experiment and for greater digestibility of DM (P < 0.10) and N (P < 0.07) with enzyme supplementation. When particle size was reduced from 1,300 to 600 microm, gain/feed was improved (P < 0.03) for the 93- to 114-kg phase of the growth assay, and digestibilities of DM (P < 0.02) and N (P < 0.04) were greater. In Exp. 3, 160 finishing pigs (63 kg) were given diets without or with the enzyme product and wheat ground to 600 or 400 microm. Enzyme supplementation improved ADG (P < 0.04) in the 90- to 115-kg phase but otherwise did not affect growth performance, carcass measurements, or stomach lesions. A particle size of 400 microm increased overall gain/feed (P < 0.04), digestibilities of DM and N (P < 0.01), and development of stomach lesions (P < 0.01). In conclusion, pigs did not benefit consistently from enzyme supplementation. However, wheat particle sizes of 600 and 400 microm supported the best overall performance in nursery and finishing pigs, respectively.

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“…Each region has specific characteristics to maintain the function of the stomach, but the functions of the stomach may be interrupted if pigs develop ulcers, and it is possible that particle size of feed ingredients impact the risk of pigs developing ulcers. The esophageal region is the region that is most at risk of developing gastric ulcers if pigs are fed ingredients with a reduced particle size [51–54] because the mucus in the glandular portion of the stomach has a protective function [55, 56]. However, a reduced particle size of grain is not the only factor that may trigger development of ulcers.…”

Section: Particle Size Of Feed Ingredientsmentioning

confidence: 99%

Processing of ingredients and diets and effects on nutritional value for pigs

Rojas¹,

Stein

2017

J Animal Sci Biotechnol

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A conventional diet based on corn and soybean meal fed to pigs is usually provided in a mash form and in most cases, processing other than grinding and mixing is not used. However, due to the high cost of energy in pig diets, use of high fiber ingredients such as soybean hulls, distillers dried grains with solubles, and wheat middlings has increased. High fiber concentrations in the diet usually results in reduced energy and nutrient digestibility due to the low capacity of pigs to digest fiber, which negatively impacts growth performance and carcass composition of the pigs. Feed processing technologies such as changes in grinding procedures, expansion, extrusion, pelleting, use of enzymes or chemical treatments may, however, be used to solubilize some of the cellulose and hemicellulose fractions that form the cell wall of plants in the ingredients, and therefore, increase nutrient availability. This may have a positive effect on energy digestibility, and therefore, also on pig growth performance and carcass composition, but effects of different feed technologies on the nutritional value of feed ingredients and diets fed to pigs are not fully understood. It has however, been demonstrated that reduced particle size of cereal grains usually results in increased digestibility of energy, primarily due to increased digestibility of starch. Extrusion or expansion of ingredients or diets may also increase energy digestibility and it appears that the increase is greater in high fiber diets than in diets with lower concentrations of fiber. Chemical treatments have not consistently improved energy or nutrient digestibility, but a number of different enzymes may be used to increase the digestibility of phosphorus, calcium, or energy. Thus, there are several opportunities for using feed technology to improve the nutritional value of diets fed to pigs.

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Influence of Various Nutritional Factors and Physical Form of Feed on Esophagogastric Ulcers in Swine

Cited by 70 publications

References 0 publications

The effect of graded levels of melatonin on performance and gastric ulcers in pigs

The effect of graded levels of melatonin on performance and gastric ulcers in pigs

Enzyme supplementation and particle size of wheat in diets for nursery and finishing pigs.

Processing of ingredients and diets and effects on nutritional value for pigs

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