EurekaMag
+ Most Popular
Cunninghamia lanceolata plantations in China
Mammalian lairs in paleo ecological studies and palynology
Studies on technological possibilities in utilization of anhydrous milk fat for production of recombined butter-like products
Should right-sided fibroelastomas be operated upon?
Large esophageal lipoma
Apoptosis in the mammalian thymus during normal histogenesis and under various in vitro and in vivo experimental conditions
Poissons characoides nouveaux ou non signales de l'Ilha do Bananal, Bresil
Desensitizing efficacy of Colgate Sensitive Maximum Strength and Fresh Mint Sensodyne dentifrices
Administration of fluid by subcutaneous infusion: revival of a forgotten method
Tundra mosquito control - an impossible dream?
Schizophrenia for primary care providers: how to contribute to the care of a vulnerable patient population
Geochemical pattern analysis; method of describing the Southeastern limestone regional aquifer system
Incidence of low birth weights in a hospital of Mexico City
Tabanidae
Graded management intensity of grassland systems for enhancing floristic diversity
Microbiology and biochemistry of cheese and fermented milk
The ember tetra: a new pygmy characid tetra from the Rio das Mortes, Brazil, Hyphessobrycon amandae sp. n. (Pisces, Characoidei)
Risk factors of contrast-induced nephropathy in patients after coronary artery intervention
Renovation of onsite domestic wastewater in a poorly drained soil
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Systolic blood pressure in a population of infants in the first year of life: the Brompton study
Haematological studies in rats fed with metanil yellow
Studies on pasteurellosis. I. A new species of Pasteurella encountered in chronic fowl cholera
Dormancy breaking and germination of Acacia salicina Lindl. seeds
therapy of lupus nephritis. a two-year prospective study

The effect of varying crude protein level and the proportions of fibre in diets containing a mixture of meat-and-bone meal and wheat bran as the only protein source on nitrogen balance indices and energy digestibility in the rat


The effect of varying crude protein level and the proportions of fibre in diets containing a mixture of meat-and-bone meal and wheat bran as the only protein source on nitrogen balance indices and energy digestibility in the rat



British Journal of Nutrition 56(2): 429-438



ISSN/ISBN: 0007-1145

PMID: 2823872

DOI: 10.1079/bjn19860123

1. The experiment was designed to investigate the effect of protein level in diets on apparent protein digestibility (AD), true protein digestibility (TD), biological value (BV), net protein utilization (NPU) and energy digestibility (DE) in rats. The design involved fourteen dietary treatments in which a combination of wheat bran and meat-and-bone meal (1:1, w/w dry matter (DM) basis) was the only nitrogen source. Crude protein (N .times. 6.25; CP) level ranged from 60 to 329 g/kg DM in approximately even increments. All diets contained a constant level of minerals and vitamins. The balance of the diet consisted of a N-free mixture. 2. AD increased from 0.602 at 60 g CP/kg DM to 0.702 at 120 g CP/kg DM, with little change at the higher levels of dietary protein. The fitting of a curve indicated an asymptote of 0.721. 3. TD did not vary significantly between 60 and 225 g CP/kg DM (mean 0.781). At the higher protein levels there was a slight but significant reduction in the mean value (0.758). 4. BV increased from 0.475 at 60 g CP/kg DM to 0.498 at 80 g CP/kg DM where it plateaued, and then from 160 g CP/kg DM it decreased at an increasing rate to 0.216 at 329 g CP/kg DM. 5. The response in NPU closely reflected that obtained with BV, rising from 0.370 to 0.384, then declining to 0.162 at the highest CP concentration. 6. DE decreased linearly from 0.851 at 60 g CP/kg DM to 0.617 at 329 g CP/kg DM. 7. The results confirmed that AD values should only be compared at a defined protein level. TD was essentially independent of dietary CP level, except for a small reduction above 250 g CP/kg, whereas BV and NPU were stable only within the range 80-140 g CP/kg DM. DE was negatively related to dietary CP and fibre level.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 001484313

Download citation: RISBibTeXText

Related references

Different proportions of fat (groundnut oil) in diets for growing and finishing pigs in relation to crude protein content. 1. Effect on digestibility of energy and nitrogen constituents and on retention of nitrogen. Annales de Zootechnie 22(2): 167-184, 1973

Effects of dietary fibre level and body weight of pigs on nutrient digestibility and available energy in high-fibre diet based on wheat bran or sunflower meal. References 103(6): 1895-1907, 2019

The influence of straw meal on the crude protein and amino acid metabolism and the digestibility of crude nutrients in broiler hens 2. digestibility of the crude nutrients in the rations and of the nitrogen 15 from straw meal and wheat. Archives of Animal Nutrition 37(4): 309-320, 1987

A nutritional evaluation of diets containing meat meal for growing pigs. 2. The effect of level of meat meal or meat and bone meal in wheat based diets. Austral. J. Exp. Agric. Animal Husb 9: 408-412, 1969

Energy digestibility and nitrogen retention by pigs and rats fed diets containing non-nutritive diluents and varying in protein level. Canadian Jour Animal Sci 41(1): 89-101, 1961

A good quality meat and bone meal is an effective protein source for piglets if diets are formulated to true ileal digestibility of amino acids. Journal of Dairy Science 85(Suppl 1): 283, 2002

Incorporation of a mixture of meat and bone meal, poultry by-product meal, blood meal and corn gluten meal as a replacement for fish meal in practical diets of Pacific white shrimp Litopenaeus vannamei at two dietary protein levels. Aquaculture Nutrition 17(2): E337-E347, 2011

Effect of different protein sources supplemented with meat and bone meal in corn stalks based diets on ruminal activity and nitrogen balance. Alexandria Journal of Agricultural Research 40(3): 29-46, 1995

Effect of different proportions of herring meal in the diet on the digestibility of energy and crude protein and on some blood values in growing pigs. Zeitschrift fur Tierphysiologie, Tierernahrung und Futtermittelkunde 44(1): 3-6, 1980

Evaluation of passion fruit (Passiflora edulis) seeds in an apparent digestibility trial in sheep. II. Intake and coefficients of digestibility of crude energy, ether extract and crude protein and nitrogen balance. Arquivo Brasileiro de Medicina Veterinaria e Zootecnia 49(1): 75-84, 1997

Apparent digestibility of crude protein and lipids in Brazilian codling, Urophycis brasiliensis (Kamp, 1858) (Pisces: Gadiformes), fed with partial replacements of soybean meal and meat meal diets. Revista de Biologia Marina y Oceanografia 40(2): 127-131, 2005

Nutrient digestibility and energy value of sheep rations differing in protein level, main protein source and non-forage fibre source. Journal of Animal Physiology and Animal Nutrition 92(1): 44-52, 2008

Diets for Dairy Cows with Different Proportions of Crude Protein Originating from Red Clover Silage versus Soybean Meal: Ruminal Degradation and Intestinal Digestibility of Amino Acids. Animals: An Open Access Journal from Mdpi 11(8), 2021

Isoquinoline alkaloids increase apparent ileal digestibility of amino acids and crude protein and apparent total tract digestibility of crude protein by finishing pigs fed corn-soybean meal diets. Journal of Animal Science 98: 81, 2020

Effects of energy level and protein source on nitrogen dynamics in steers fed wheat straw based diets studies using nitrogen 15. Journal of Animal Science 69(Suppl 1): 549, 1991