scholarly journals Effects of quantity and quality of dietary protein on the jejunal absorption activities for L-leucine and glycylglycine in rats.

1983 ◽  
Vol 47 (2) ◽  
pp. 309-314 ◽  
Author(s):  
Kimio SUGIYAMA ◽  
Tadashi OHKUBO ◽  
Keiichiro MURAMATSU
Keyword(s):  
Dietary Protein ◽  
Jejunal Absorption

scholarly journals The effect of dietary protein on reproduction in the mare. VI. Serum progestagen concentrations during pregnancy

1998 ◽  
Vol 69 (4) ◽  
Author(s):  
F.E. Van Niekerk ◽  
C.H. Van Niekerk
Keyword(s):  
Dietary Protein ◽  
Protein Quality ◽  
Amino Acid Content ◽  
Protein Supplementation ◽  
The Other ◽  
Protein Diet ◽  
Sharp Decline ◽  
High Quality Protein ◽  
Essential Amino Acid Content

Sixty-four Thoroughbred and Anglo-Arab mares aged 6-12 years were used, of which 40 were non-lactating and 24 lactating. Foals from these 24 mares were weaned at the age of 6 months. Non-lactating and lactating mares were divided into 4 dietary groups each. The total daily protein intake and the protein quality (essential amino-acid content) differed in the 4 groups of non-lactating and 4 groups of lactating mares. The mares were covered and the effect of the quantity and quality of dietary protein on serum progestagen concentrations during pregnancy was studied. A sharp decline in serum progestagen concentrations was recorded in all dietary groups from Days 18 to 40 of pregnancy, with some individual mares reaching values of less than 4 ng/mℓ. Serum progestagen concentrations recorded in some of the non-lactating mares on the low-quality protein diet increased to higher values (p<0.05) than those of mares in the other 3 dietary groups at 35-140 days of pregnancy. A similar trend was observed for the lactating mares on a low-quality protein diet at 30-84 days of pregnancy. No such trends were observed in any of the other dietary groups. High-quality protein supplementation increased serum progestagen concentrations during the 1st 30 days of pregnancy. Lactation depressed serum progestagen concentrations until after the foals were weaned.

Growth and meat quality of kids of indigenous Greek goats (Capra prisca) as influenced by dietary protein and gastrointestinal nematode challenge

Meat Science ◽  
2009 ◽  
Vol 82 (3) ◽  
pp. 317-323 ◽  
Author(s):  
G. Arsenos ◽  
P. Fortomaris ◽  
E. Papadopoulos ◽  
S. Sotiraki ◽  
C. Stamataris ◽  
...  
Keyword(s):  
Meat Quality ◽  
Dietary Protein ◽  
Gastrointestinal Nematode

Effect of dietary protein and energy on growth and fibre characteristics of british angora goats

1990 ◽  
Vol 1990 ◽  
pp. 68-68
Author(s):  
Md. Shahjalal ◽  
H. Galbraith ◽  
J.H. Topps
Keyword(s):  
Dietary Protein ◽  
Block Design ◽  
Live Weight ◽  
Fibre Production ◽  
High Energy ◽  
Metabolizable Energy ◽  
Growth And Yield ◽  
Yield And Quality ◽  
Angora Goats

There is increasing interest in the diversification of animal production systems to produce products which are not in surplus nationally. Fine fibre production from goats is one such subject area. Previous studies (e.g. Huston, 1980; Calhoun et al, 1988) in other countries have suggested that the yield and quality of mohair fibre may be influenced by nutritional factors such as protein and energy. The aim of the work reported here was to investigate the effects of differences in dietary protein and energy on body growth and yield and quality of mohair fibre produced by British Angora goats.Twenty four male castrate British Angora goats of Australasian origin with an initial liveweight of 23.5 kg were used in a 112 day study. The goats were housed in individual pens and introduced to pelleted diets over a period of three weeks. The animals were allocated to four dietary treatments by randomised block design according to liveweight. The animals received diets containing, per kg dry matter, concentrations of estimated metabolizable energy of 10.2 MJ (LE) or 11.9 MJ (HE) and crude protein concentrations of 108 g (LP) or 180 g (HP) in a 2 x 2 factorial experiment. The animals were offered high energy diets (30 g/kg liveweight) which were increased when live weight increased by 1.0 kg. The goats on the low energy rations were offered amounts equivalent to 0.85 of the ME intake from HE diets. The live weight gain and food intake were recorded weekly.

1.1 Nitrogen Metabolism in the Rumen

1982 ◽  
Vol 6 ◽  
pp. 1-11 ◽  
Author(s):  
P. J. Buttery ◽  
D. Lewis
Keyword(s):  
Nitrogen Metabolism ◽  
Dietary Protein ◽  
Total Protein ◽  
Microbial Protein ◽  
Total Flow ◽  
Endogenous Proteins

The concept that the protein reaching the duodenum of a ruminant comprises of two major components, feed and microbial, has been accepted for many years but recently there has been considerable interest in attempts to define and quantify those processes which have an influence on the quantity and quality of this protein. The main reason for this is the desire to predict accurately the total flow of protein to the duodenum when a particular diet is fed. The ability to do this, coupled with a refinement of knowledge on the needs of the animal, are essential steps in improving the efficiency with which ruminants are fed. This review examines some of the factors which control the breakdown of dietary protein and the synthesis of microbial protein in the rumen. The lack of space has prevented discussion of many important topics, for example, the contribution of endogenous proteins to the total protein entering the duodenum. Many reviews have been published in this area (see Egan, 1980; Demeyer and Van Nevel, 1980; others are referred to in the text).

Effect of grazing and dietary protein on eating quality of Podolian beef1,2

2011 ◽  
Vol 89 (11) ◽  
pp. 3752-3758 ◽  
Author(s):  
R. Marino ◽  
M. Albenzio ◽  
M. Caroprese ◽  
F. Napolitano ◽  
A. Santillo ◽  
...  
Keyword(s):  
Dietary Protein ◽  
Eating Quality

scholarly journals An Evaluation of Protein Intake for Metabolic Demands and the Quality of Dietary Protein in Rats Using an Indicator Amino Acid Oxidation Method

2011 ◽  
Vol 57 (6) ◽  
pp. 418-425 ◽  
Author(s):  
Aki OGAWA ◽  
Yuka NARUSE ◽  
Yasutaka SHIGEMURA ◽  
Yukiko KOBAYASHI ◽  
Isao SUZUKI ◽  
...  
Keyword(s):  
Amino Acid ◽  
Dietary Protein ◽  
Protein Intake ◽  
Acid Oxidation ◽  
Oxidation Method ◽  
Amino Acid Oxidation

Growth and product quality of European eel (Anguilla anguilla ) as affected by dietary protein and lipid sources

2003 ◽  
Vol 19 (2) ◽  
pp. 74-78 ◽  
Author(s):  
U. Luzzana ◽  
M. Scolari ◽  
B. Campo Dall'Orto ◽  
F. Caprino ◽  
G. Turchini ◽  
...  
Keyword(s):  
Product Quality ◽  
Dietary Protein ◽  
Anguilla Anguilla ◽  
European Eel

scholarly journals Quantity as Well as Quality of Dietary Protein Affects Serine Dehydratase Gene Expression in Rat Liver

2003 ◽  
Vol 49 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Saeko IMAM ◽  
Iyo YAGI ◽  
Tohru SAEKI ◽  
Makoto KOTARU ◽  
Kimikazu IWAMI
Keyword(s):  
Gene Expression ◽  
Rat Liver ◽  
Dietary Protein ◽  
Serine Dehydratase
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