Influence of Mechanical Alteration of Dietary Density on Energy Available for Chick Growth

Reddy, C. V. C. M.; Jensen, L. S.; Merrill, Louis H.; McGinnis, James

doi:10.1093/jn/77.4.428

Cited by 44 publications

(9 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar observations as those depicted in Figures 1 and 2 were made by Jensen and Mc-Ginnis (1952) and Reddy et al (1962). Jensen and McGinnis (1952) demonstrated that body weights decreased in hens fed high alfalfa (low energy) diets in mash but not in pelleted form.…”

Section: Discussionsupporting

confidence: 86%

“…Although broilers of the same weight could be produced with mash and crumbled diets, the ones fed the crumbles would be fed a lower density diet and contain more carcass fat. An increase in chick growth and carcass fat from pelleting was demonstrated by Reddy et al (1962).…”

Section: Discussionmentioning

confidence: 99%

“…Diet volume, in turn, affects feed consumption (Table 3; Reddy et al, 1962). Crumbling had no consistent effect on diet volume (Table 1), perhaps due to interactions among the ingredients in each diet.…”

Section: Discussionmentioning

confidence: 99%

“…Jensen and McGinnis (1952) demonstrated that body weights decreased in hens fed high alfalfa (low energy) diets in mash but not in pelleted form. When Reddy et al (1962) diluted a chick diet with cellulose, growth was decreased in chicks fed a 20% added cellulose diet in mash but not in pelleted form. The depression in growth rate of chicks fed the mash diet was explained on the basis of energy expended for feed consumption (not capacity of the chicks gastrointestinal system).…”

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

The Effect of Crumbling on the Relationship Between Dietary Density and Chick Growth, Feed Efficiency, and Abdominal Fat Pad Weights

1983

View full text Add to dashboard Cite

Four hundred and eighty sexed broiler chicks were fed corn-soy-oats-poultry oilbased diets of 2.9, 3.1, or 3.3 kcal/g in each of two trials in battery brooders. Diets were fed in either mash or crumbled form. Increasing dietary density increased chick gain, feed efficiency, and percent abdominal fat. Significant interactions were found between dietary density and diet form, indicating the slopes of the regression lines depicting the relationship between dietary density and gain, consumption, and percent abdominal fat are different for mash and crumbled diets. The interaction was most striking for percent abdominal fat: crumbling the low density diet increased percent fat by 23%, crumbling the high density diet decreased percent fat by 1%. Responses to dietary density cannot be assumed to be the same for mash and crumble or pellet-fed broilers. (

show abstract

Section: Discussionsupporting

confidence: 86%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

The Effect of Crumbling on the Relationship Between Dietary Density and Chick Growth, Feed Efficiency, and Abdominal Fat Pad Weights

1983

View full text Add to dashboard Cite

show abstract

“…A considerable amount of literature has appeared on the feeding of diets in mash, pellet or crumble form to broilers, layers and turkeys (Stewart and Upp, 1951;Reddy et al, 1962;Jensen et al, 1962;Choi et al, 1986). Variation in performance when feeding diets in various forms may be attributable to nutrient density, physiological modification of the gastrointestinal tract, and to changes in feeding behaviour, age, or husbandry practices.…”

Section: Introductionmentioning

confidence: 99%

Performance of early and late feathering broiler breeder females with different feeding regimens

O’Sullivan

Dunnington

Smith

et al. 1991

British Poultry Science

View full text Add to dashboard Cite

1. Growth, reproductive characteristics and immunocompetence were evaluated in a line of broiler breeder females segregating at the sex-linked feathering locus when maintained on three feeding regimens with two forms of food in a factorial design. 2. Long-term obesity but not short-term weight gain had deleterious consequences for reproductive characteristics, response to sheep red blood cell antigen, resistance to Escherichia coli and livability. 3. Reproductive performance of early feathering females was superior to that of late feathering ones. Differences were attributed to an association between the allele for late feathering and an endogenous viral locus ev21, which encodes for avian leucosis virus. 4. Reproductive performance of breeders fed crumbles was superior to that of breeders fed a combination of crumbles and fines.

show abstract

Utilisation of two varieties of full-fat and simulated soyabeans in meal and pelleted diets by broiler chickens

Agunbiade

2000

J. Sci. Food Agric.

View full text Add to dashboard Cite

Full‐fat soyabeans (FFSB) (Glycine max) of two varieties, TGX 1440/E and M‐351, and recombined soyabean meal and oil (SBMO, simulated soyabeans) along with a basal diet were evaluated in a growth and digestibility study designed to examine energy and nutrient digestibility and growth performance of broiler chickens fed the soyabean diets presented as meal or pellets. The soyabean products were incorporated into the basal diet in a 40:60 ratio (product/basal). The resulting eight experimental diets were assessed in a growth trial covering the starter to the finisher phase (1–8 weeks) of the broiler rearing period, during which daily weight gain, feed consumption and feed conversion efficiency were measured. Two digestibility trials were conducted at the starter (1.5–2 weeks) and finisher (7.5–8 weeks) phases of the broiler rearing. Apparent metabolisable energy (AME) and apparent fat (AFD), nitrogen (AND) and dry matter (ADD) digestibilities of diets were determined. Data on carcass and gut measurements were also obtained. The bird rearing phase had a significant (P ≤ 0.001) effect on energy and nutrient digestibility of diets and soyabean products, with the finisher broilers yielding higher values. Mean AME values for FFSB were 16.1 vs 13.6 MJ kg−1 DM for the finisher and starter broilers. Pelleting of diets improved AFD (P ≤ 0.001) and AME (P ≤ 0.10). Significant interaction (P ≤ 0.01) between diet and feed form resulted in improvement in fat digestibility of pelleted FFSB diets but not that of SBMO diets. Carcass fat (P ≤ 0.01) and breast weight (P ≤ 0.05) were increased and gizzard weight decreased (P ≤ 0.01) in birds given the pelleted diets compared with those on meal diets. Birds fed the TGX FFSB diets had significantly lower dietary fat and nitrogen digestibilities and heavier weight of the small intestine than those on the M‐351 diets, thus suggesting varietal differences in the structure and nutritional value of soyabeans. © 2000 Society of Chemical Industry

show abstract

Influence of Mechanical Alteration of Dietary Density on Energy Available for Chick Growth

Cited by 44 publications

References 12 publications

The Effect of Crumbling on the Relationship Between Dietary Density and Chick Growth, Feed Efficiency, and Abdominal Fat Pad Weights

The Effect of Crumbling on the Relationship Between Dietary Density and Chick Growth, Feed Efficiency, and Abdominal Fat Pad Weights

Performance of early and late feathering broiler breeder females with different feeding regimens

Utilisation of two varieties of full-fat and simulated soyabeans in meal and pelleted diets by broiler chickens

Contact Info

Product

Resources

About