scholarly journals Effects of High Energy and/or High Protein Diets on Calcium and Phosphorus Metabolism in Sheep

1990 ◽  
Vol 61 (2) ◽  
pp. 162-168
Author(s):  
Masayuki FUNABA ◽  
Hajime NABETA ◽  
Hideo YANO ◽  
Ryoji KAWASHIMA
Keyword(s):  
High Energy ◽  
High Protein ◽  
Phosphorus Metabolism ◽  
Calcium And Phosphorus ◽  
High Protein Diets ◽  
Protein Diets

Effects of Long-Term High-Fat/High-Energy and High-Protein Diets on Insulin and Ghrelin Expression in Developing Rats

2012 ◽  
Vol 37 (3) ◽  
pp. 97-109 ◽  
Author(s):  
Xiumin Wang ◽  
Shaoqing Ni ◽  
Yanping Xu ◽  
Li Liang ◽  
Lizhong Du ◽  
...  
Keyword(s):  
High Energy ◽  
High Protein ◽  
High Fat ◽  
High Protein Diets ◽  
Protein Diets

Effects of hormones and diets on performance and carcass characteristics of pigs during summer and winter

1970 ◽  
Vol 12 (1) ◽  
pp. 47-54 ◽  
Author(s):  
O. M. Hale ◽  
J. C. Johnson
Keyword(s):  
Carcass Characteristics ◽  
High Energy ◽  
Low Energy ◽  
High Protein ◽  
Energy Concentration ◽  
Dietary Energy ◽  
Low Protein ◽  
Dressing Percentage ◽  
High Protein Diets ◽  
Protein Diets

SUMMARYOne hundred and forty-four weanling Duroc barrows were individually fed to study effects of season (summer and winter), energy concentration of the diet (high and low), protein concentration (high and low), and orally administered hormones (none, diethylstilboestrol, and mefhyltestosterone) on performance and carcass characteristics of growing-finishing swine.In summer the rate of gain of pigs was 6% slower and yielded carcasses with 19% smaller loin-eye areas but 3% more lean cuts than in winter.Pigs fed on high-energy diets gained 13% faster, consumed 8% less feed daily and required 18% less feed per unit of weight gain than pigs fed on low-energy diets. Pigs fed on high-energy diets also had a dressing percentage 2·5 units higher and yielded carcasses 2% shorter, with 15% more backfat, than those fed on low-energy diets.Pigs fed on low-protein diets had a dressing percentage 1·6% higher and yielded carcasses with about 7% thicker backfat than pigs fed on high-protein diets. Dietary energy and protein concentrations interacted significantly in their effect on rate of gain. Pigs fed on low-energy, low-protein diets gained weight about 7% faster than pigs fed on low-energy, high-protein diets; however, pigs fed on high-energy, high-protein diets gained weight about 3% faster than pigs fed on high-energy, low-protein diets.The only significant effect of giving each pig about 2 mg of diethylstilboestrol (DES) per day was a 2% increase in weight of lean cuts. An average daily consumption of 20 mg methyltestosterone (MT) per pig decreased rate of gain, daily feed intake, dressing percentage and backfat thickness, but increased carcass length, area of the loin-eye and weight of lean cuts. Hormones and dietary energy levels interacted in their effects on rate of gain and feed efficiency. Pigs fed on low-energy diets with or without hormones gained weight at about the same rate, but high-energy diets increased rate of gain in pigs receiving no hormone or DES by about 17% and 21%, respectively, while having no effect in pigs receiving MT. Pigs fed on low-energy diets with MT required about 7% and 6% less feed per unit of gain than pigs fed on low-energy diets without hormone or with DES, respectively; whereas pigs fed on high-energy diets containing MT required about 10% and 14% more feed per unit of gain than did pigs fed on high-energy diets without hormone or with DES, respectively.

Effect of high energy and/or high protein diets on zinc and copper metabolism in goats

2013 ◽  
Vol 7 (2) ◽  
pp. 30
Author(s):  
Abdelbaset Sayed ◽  
Nabila Gazia ◽  
Abdelsattar Abdellah ◽  
Sherif Abdelrheem
Keyword(s):  
Copper Metabolism ◽  
High Energy ◽  
High Protein ◽  
High Protein Diets ◽  
Protein Diets

scholarly journals Effects of feed energy and protein level on growth and pelt parameters in blue foxes (Vulpes lagopus) in the late growing-furring period

2020 ◽  
Vol 29 (5) ◽  
Author(s):  
Vappu Ylinen ◽  
Maarit Mohaibes ◽  
Jussi Peura ◽  
Jarmo Valaja
Keyword(s):  
Energy Content ◽  
Body Condition Score ◽  
High Energy ◽  
Low Energy ◽  
High Protein ◽  
Low Protein ◽  
Condition Score ◽  
Digestible Crude Protein ◽  
High Protein Diets ◽  
Protein Diets

The aim of the present study was to determine whether a decrease in feed energy content would prevent extreme body weight (BW) gain and fatness in blue foxes in the late growing-furring period, without compromising pelt quality or pelt size. BW gain, body mass index (BMI), body condition score (BCS), and pelt characteristics were studied in 60 blue foxes divided into four equal-sized groups from mid-October until pelting (50 days). Experimental diets in were “high energy – high protein”, “high energy – low protein”, “low energy – high protein”, and “low energy – low protein”. High-energy diets contained 19.3 MJ metabolisable energy (ME) in kg dry matter (DM) and high-protein diets contained digestible crude protein (DCP) 20% of ME. Low-energy diets contained 16.3 MJ ME in kg DM and low-protein diets DCP 17% of ME. Feeding was gradually increased towards ad libitum. Reduced ME intake had no effect on pelt size or pelt quality. High-energy feeds resulted in heavier animals with higher BMI. However, the final BW exceeded 20 kg and BCS was “fat” or “extremely fat” in all groups.

scholarly journals THE EFFECT OF HIGH PROTEIN DIETS ON THE KIDNEYS OF RATS

1926 ◽  
Vol 67 (1) ◽  
pp. 101-107
Author(s):  
Henry Jackson ◽  
Margaret D. Riggs
Keyword(s):  
High Protein ◽  
High Protein Diets ◽  
Protein Diets

Dietary protein paradox: decrease of amino acid availability induced by high-protein diets

1993 ◽  
Vol 264 (6) ◽  
pp. G1057-G1065 ◽  
Author(s):  
C. Moundras ◽  
C. Remesy ◽  
C. Demigne
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Dietary Protein ◽  
High Protein ◽  
Glutamine Metabolism ◽  
Metabolic Adaptation ◽  
Casein Diet ◽  
Serine Dehydratase ◽  
High Protein Diets ◽  
Protein Diets

The aim of the present study was to evaluate the effect of changes in dietary protein level on overall availability of amino acids for tissues. For this purpose, rats were adapted to diets containing various concentrations of casein (7.5, 15, 30, and 60%) and were sampled either during the postprandial or postabsorptive period. In rats fed the protein-deficient diet, glucogenic amino acids (except threonine) tended to accumulate in plasma, liver, and muscles. In rats fed high-protein diets, the hepatic balance of glucogenic amino acids was markedly enhanced and their liver concentrations were consistently depressed. This response was the result of a marked induction of amino acid catabolism (a 45-fold increase of liver threonine-serine dehydratase activity was observed with the 60% casein diet). The muscle concentrations of threonine, serine, and glycine underwent changes parallel to plasma and liver concentrations, and a significant reduction of glutamine was observed. During the postabsorptive period, adaptation to high-protein diets resulted in a sustained catabolism of most glucogenic amino acids, which accentuated the drop in their concentrations (especially threonine) in all the compartments studied. The time course of metabolic adaptation from a 60 to a 15% casein diet has also been investigated. Adaptation of alanine and glutamine metabolism was rapid, whereas that of threonine, serine, and glycine was delayed and required 7-11 days. This was paralleled by a relatively slow decay of liver threonine-serine dehydratase (T-SDH) activity in contrast to the rapid adaptation of pyruvate kinase activity after refeeding a high-carbohydrate diet.(ABSTRACT TRUNCATED AT 250 WORDS)

scholarly journals Contrarily to whey and high protein diets, dietary free leucine supplementation cannot reverse the lack of recovery of muscle mass after prolonged immobilization during ageing

2012 ◽  
Vol 590 (8) ◽  
pp. 2035-2049 ◽  
Author(s):  
Hugues Magne ◽  
Isabelle Savary-Auzeloux ◽  
Carole Migné ◽  
Marie-Agnès Peyron ◽  
Lydie Combaret ◽  
...  
Keyword(s):  
Muscle Mass ◽  
High Protein ◽  
Leucine Supplementation ◽  
Prolonged Immobilization ◽  
High Protein Diets ◽  
Protein Diets

Use of low carbohydrate, high protein diets in cats with diabetes mellitus

2008 ◽  
Vol 92 (2) ◽  
pp. 219-220 ◽  
Author(s):  
T. C. Hall ◽  
O. M. Mahony ◽  
L. M. Freeman ◽  
E. A. Rozanski
Keyword(s):  
Diabetes Mellitus ◽  
High Protein ◽  
Low Carbohydrate ◽  
High Protein Diets ◽  
Protein Diets
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