scholarly journals The protein-sparing effect of carbohydrate

1977 ◽  
Vol 38 (3) ◽  
pp. 479-488 ◽  
Author(s):  
M. F. Fuller ◽  
R. M. J. Crofts
Keyword(s):  
Protein Concentration ◽  
Continuous Functions ◽  
Generalized Equation ◽  
N Retention ◽  
Protein Sparing ◽  
Unit Increase ◽  
Sparing Effect ◽  
Dietary Starch ◽  
Protein Supply ◽  
Net Protein

1. Measurements were made of the losses of nitrogen in the faeces and urine of sixty pigs of approximately 33 kg, given dietary regimens comprising twenty-nine combinations of fish flour (0-800 g/d) and maize starch (0–1200 g/d).2. The results were used to develop a generalized equation describing N retention as a joint function of N intake and starch intake.3. The protein-sparing effect of starch was exerted in all circumstances. It was greatest when protein intake exceeded 220 g/d but some effect persisted with protein-free diets. With a high protein supply, the increase in N retention per unit increase in dietary starch decreased from 36 mg/g with the first increment to 3 mg/g with the highest attainable starch intake.4. From the generalized equation the relationships between net protein utilization and protein concentration and food intake could be described as continuous functions. The equations may be of use in comparing the protein values of diets measured under non-standardized conditions.

scholarly journals Evaluation of undehydrated barley feed fractions and dried oat feed fractions from integrated starch-ethanol process in diets of growing pigs

1992 ◽  
Vol 1 (3) ◽  
pp. 291-301 ◽  
Author(s):  
Matti Näsi ◽  
Erkki Aimonen
Keyword(s):  
Latin Square ◽  
Protein Digestibility ◽  
Essential Amino Acids ◽  
Nutrient Digestibility ◽  
Growing Pigs ◽  
Ether Extract ◽  
Protein Utilization ◽  
N Retention ◽  
Extract Content ◽  
Protein Supply

The nutrient digestibility and protein utilization of undehydrated barley fractions: protein (BP), protein fibre mixture (BPF) and distillers solids (DS) at two levels of inclusion in diets fortified to equal lysine content were assayed with growing pigs in a 6 x 6 Latin square. Dried barley fibre (BF), oat protein (OP) and oat fibre (OF) from integrated starch-ethanol production were evaluated as feed ingredients for pigs in three other trials. DS and OP had a higher essential amino acids content than BP, especially with respect to lysine. All fractions had a rather high ether extract content 46-196 g/kg and their fatty acid composition is presented. BP showed higher protein digestibility than DS (0.931 vs. 0.857) and pigs on BP-diet retained more N than on DS-diet. BF showed a low digestibility of OM and CP and 0.1 inclusion of BF mixed with BP depressed CP digestibility and N-retention. A higher protein supply from cereal protein in the diet promoted N-retention but decreased protein utilization. OP had high digestibility and OF was more digestible than BF. The study confirmed the high digestibility and energy values of the proteinous grain fractions and a high protein utilization when adequately fortified with lysine. The fibrous fractions have a rather low nutrient digestibility and their use in pig diets is therefore limited.

The effects of diets with reduced crude protein and digestible energy content on the performance of growing and finishing pigs and the characteristics of slurry produced

1999 ◽  
Vol 1999 ◽  
pp. 24-24
Author(s):  
P A Lee ◽  
A Armsby
Keyword(s):  
Crude Protein ◽  
Energy Content ◽  
Nutrient Balance ◽  
Carcass Characteristics ◽  
Finishing Pigs ◽  
N Retention ◽  
Digestible Energy ◽  
Reduced Crude Protein ◽  
Sparing Effect ◽  
Protein Diets

Formulating diets to match more closely the requirements of the pig for amino acids results in diets which are lower in crude protein (CP) than conventional commercial diets. The lower intake of nitrogen (N) which is concomitant with these diets results on lower N excretion. The excretion of excess N requires energy and previous nutrient balance work undertaken at Terrington (Lee and Kay, 1998) indicated that the ‘energy sparing’ effect of the reduced crude protein diets can be utilised by reducing the digestible energy (DE) content of reduced CP diets whilst at the same time maintaining the level of N retention. The objective of this work was to determine the performance carcass characteristics and slurry characteristics of growing/finishing pigs given reduced CP/DE diets.

scholarly journals Protein Sparing Effect of Lipids in Diets for Fingerlings of Gilthead Sea Bream

1996 ◽  
Vol 62 (4) ◽  
pp. 624-628 ◽  
Author(s):  
José Manuel Vergara ◽  
Lidia Robainà ◽  
Marisol Izquierdo ◽  
Manuel De La Higuera
Keyword(s):  
Gilthead Sea Bream ◽  
Sea Bream ◽  
Protein Sparing ◽  
Sparing Effect

HAS METHIONINE A PROTEIN SPARING EFFECT IN ACUTE INFECTIOUS HEPATITIS?

1948 ◽  
Vol 215 (6) ◽  
pp. 624-630 ◽  
Author(s):  
Hans Popper ◽  
Donald D. Kozoll ◽  
Frederick Steigmann ◽  
Wa To Mok
Keyword(s):  
Infectious Hepatitis ◽  
Protein Sparing ◽  
Sparing Effect

Protein-sparing effect of carbohydrate in silver barb, Puntius gonionotus fry

2007 ◽  
Vol 13 (4) ◽  
pp. 311-317 ◽  
Author(s):  
K.N. MOHANTA ◽  
S.N. MOHANTY ◽  
J.K. JENA
Keyword(s):  
Protein Sparing ◽  
Sparing Effect ◽  
Silver Barb

scholarly journals Protein sparing effect of a growth promotant (Carbadox) used in growing pigs

1977 ◽  
Vol 26 (3) ◽  
pp. 463-463
Author(s):  
D. BOURDON ◽  
J. P. RAYNAUD ◽  
R. FERRANDO
Keyword(s):  
Growing Pigs ◽  
Protein Sparing ◽  
Sparing Effect
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