Ingredient and Processing Interrelationships in Swine Feeds: Iii. Effects of Wheat Bran, Pelleting and Protein Source on Responses to Dietary Antibiotics

Gorrill, A. D. L.; Bell, J. M.; Williams, Christina

doi:10.4141/cjas60-016

Cited by 6 publications

(2 citation statements)

References 11 publications

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“…Virginiamycin supplementation had no significant effect on the digestibility of any of the cell wall components. Our results are in agreement with those of Gorrill et al (1960), who found an improvement in energy digestibility after supplementation with a mixture of penicillin, streptomycin and aureomycin. However, Sherry et al (1981) reported that Aureo-SP 2504 supplementation had no effect on the digestibility of cellulose or energy in growing swine.…”

Section: Resultssupporting

confidence: 93%

Effects of Fiber and Virginiamycin on Nutrient Absorption, Nutrient Retention and Rate of Passage in Growing Swine

Ravindran

Kornegay

Webb

1984

Journal of Animal Science

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Three balance trials, each involving 12 crossbred gilts averaging 35.2 kg body weight, were conducted to determine the effects of dietary fiber and virginiamycin on nutrient digestibility, mineral absorption and retention, and digesta rate of passage (RP). Two levels of fiber (13.5 and 20.2% neutral detergent fiber) and two levels of virginiamycin (0 and 11 ppm) were used in a 2 X 2 factorial arrangement of treatments. All diets were isonitrogenous and isocaloric. The RP was determined by observing the time required for a change in feces color after the addition of .5% chromic oxide to the diet. The high fiber diet had a faster (P less than .01) RP, which was associated with depressions (P less than .001) in the digestibility of dry matter (DM), energy (E), cell contents, neutral detergent fiber (NDF), acid detergent fiber (ADF), hemicellulose (HC), cellulose, permanganate lignin and ash. Virginiamycin supplementation slowed (P less than .004) the RP of both low and high fiber diets, but improved (P less than .05) the DM, E, NDF, ADF, HC and cellulose digestibility of the high fiber diet only. Fiber increased (P less than .06) fecal N excretion, whereas virginiamycin supplementation decreased (P less than .08) fecal N excretion. The addition of virginiamycin improved the absorption and retention of P, Ca, Mg, Cu, Fe, Zn and Mn when added to the high fiber diet, but had little or no effect when added to the low fiber diet even though absorption and retention values for most minerals were similar or slightly higher for the unsupplemented high fiber diet compared with the unsupplemented low fiber diet.(ABSTRACT TRUNCATED AT 250 WORDS)

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Section: Resultssupporting

confidence: 93%

Effects of Fiber and Virginiamycin on Nutrient Absorption, Nutrient Retention and Rate of Passage in Growing Swine

Ravindran

Kornegay

Webb

1984

Journal of Animal Science

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“…Virginiamycin and other antibiotics have improved energy utilization by turkey poults (Buresh et al, 1984) and growing swine (Ravindran et al, 1984;Gorrill et al, 1960). Because normal or high levels of energy have been used in previous studies, the present experiment was conducted to determine the influence of Virginiamycin on the performance of broilers fed lower levels of energy.…”

Section: Introductionmentioning

confidence: 99%

Influence of Virginiamycin on Broilers Fed Four Levels of Energy

1986

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An experiment was conducted with broiler chicks to determine the influence of Virginiamycin on chicks fed diets with four levels of energy. Addition of the Virginiamycin to the diet resulted in significantly improved body weight and feed efficiency at all levels of energy. The greatest improvement was obtained at the lowest level of energy. Addition of Virginiamycin to the diet decreased the energy required to produce a unit of body weight.

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The effect of changes in feeding patterns on the performance of pigs

Braude¹

1967

Proc. Nutr. Soc.

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A short account of work carried out by the authors was given. A full presentation will be published (Strong, Shirling & Passmore, 1967). The summary of this paper is as follows:Food which provided from 2960 to 7880 kcal in excess of requirements was eaten by sixteen subjects, each for a period of 4 days.The proportion of the nutrients lost in the faeces was not increased during overfeeding.The metabolic rates were in no case increased by an amount equivalent to more than 15% of the excess calories. The increase could be attributed to the specific dynamic effect of the extra dietary protein.The gains in weight ranged from 370 to 5460 g/4 days and the calorie equivalent of the weight gained varied from 1 -1 to 10.0 kcal/g. These variations can be attributed to variations in the amount of water retained.Analysis of their respiratory exchanges suggests that most subjects stored from 400 to 1500 g carbohydrate in the tissues, possibly in the form of muscle glycogen. In feeding livestock, three basic questions must be considered: what, how much, and how to feed? The qualitative and quantitative aspects have been studied by many and information has accumulated which, though by no means complete, permits formulation of standards, requirements and allowances. It is only fairly recently that it has become clear that the problem of 'How should one feed' is of basic importance in nutrition, and that understanding of it may help to resolve some of the present controversies about feeding standards and requirements. The problem of how to feed is affected by so many factors that it is virtually impossible to arrive at any hard and fast rules or to make valid general recommendations. All one can do in a brief review is to draw attention to the many aspects of the problem and to some of its implications.In Table I I have listed under three headings, some of the factors which may influence the pattern of feeding : those connected with the animal, those connected with the feed, and those connected with the management. The list is by no means complete, but it points to the complexity of the problem. It becomes even more https://www.cambridge.org/core/terms. https://doi

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Ingredient and Processing Interrelationships in Swine Feeds: Iii. Effects of Wheat Bran, Pelleting and Protein Source on Responses to Dietary Antibiotics

Cited by 6 publications

References 11 publications

Effects of Fiber and Virginiamycin on Nutrient Absorption, Nutrient Retention and Rate of Passage in Growing Swine

Effects of Fiber and Virginiamycin on Nutrient Absorption, Nutrient Retention and Rate of Passage in Growing Swine

Influence of Virginiamycin on Broilers Fed Four Levels of Energy

The effect of changes in feeding patterns on the performance of pigs

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