Increased nitrogen secretion by inclusion of soya lectin in the diets of pigs

1995 ◽  
Vol 69 (4) ◽  
pp. 501-510 ◽  
Author(s):  
Hagen Schulze ◽  
Harpal S Saini ◽  
Joop Huisman ◽  
Martin Hessing ◽  
Wim Van Den Berg ◽  
...  
Keyword(s):  
Nitrogen Secretion

scholarly journals De Novo Alanine Synthesis by Bacteroids of Mesorhizobium loti Is Not Required for Nitrogen Transfer in the Determinate Nodules of Lotus corniculatus

2005 ◽  
Vol 187 (15) ◽  
pp. 5493-5495 ◽  
Author(s):  
Shalini Kumar ◽  
Alexandre Bourdès ◽  
Philip Poole
Keyword(s):  
Enzyme Activity ◽  
De Novo ◽  
Lotus Corniculatus ◽  
Nitrogen Transfer ◽  
Mesorhizobium Loti ◽  
Alanine Dehydrogenase ◽  
Alanine Synthesis ◽  
Secretion Product ◽  
Cultured Bacteria ◽  
Nitrogen Secretion

ABSTRACT Deletion of both alanine dehydrogenase genes (aldA) in Mesorhizobium loti resulted in the loss of AldA enzyme activity from cultured bacteria and bacteroids but had no effect on the symbiotic performance of Lotus corniculatus plants. Thus, neither indeterminate pea nodules nor determinate L. corniculatus nodules export alanine as the sole nitrogen secretion product.

Effect of guar gum on nitrogen secretion into isolated loops of jejunum in conscious growing pigs

1984 ◽  
Vol 52 (3) ◽  
pp. 499-505 ◽  
Author(s):  
A. G. Low ◽  
Anna L. Rainbird
Keyword(s):  
Protein Synthesis ◽  
Small Intestine ◽  
Dietary Fibre ◽  
Guar Gum ◽  
Live Weight ◽  
Growing Pigs ◽  
N Metabolism ◽  
Preliminary Study ◽  
Nitrogen Secretion

1. Four pigs, initially of 30 kg live weight, were surgically prepared with two re-entrant cannulas in the jejunum, 1.0 m apart. This allowed an isolated loop to be formed through which Ringer solutions were continuously perfused for 6.5-h periods per day.2. The effects of two Ringer solutions of contrasting composition on nitrogen secretion were measured in a preliminary study.3. The effects of guar gum (6.7 g/l) on N secretion during perfusions of solutions of glucose or of maltose (20 g/l) were measured.4. N secretion did not differ significantly between the two Ringer solutions.5. Addition of guar gum to the solution of glucose increased mean N secretion from 69.2 to 133.9 mg/m per 2 h; the corresponding values for the maltose solution were 75.5 and 120.2 mg/m per 2 h. In both cases the differences were significant (P< 0.001). Differences between N secretion into glucose and maltose solutions were not significant, either without or with guar gum.6. Guar gum addition had a greater effect on N secretion in hours 5 and 6 than in hours 1 and 2 of perfusion.7. It was calculated that guar gum would have increased N secretion by the mucosa of the whole small intestine from approximately 15 to 27 g/d under the conditions of the study, assuming uniform secretion throughout the organ. These results suggest that certain types of dietary fibre may be important determinants of N secretion by the mucosa of the small intestine. They also suggest that changes in N secretion of this magnitude are of importance in N metabolism because the overall rate of protein synthesis in these pigs was probably about 100 g/d (expressed as N), using values from the literature.

Nitrogen Secretion in the Swimbladder of Whitefish

Science ◽  
1956 ◽  
Vol 123 (3185) ◽  
pp. 59-60 ◽  
Author(s):  
P. F. SCHOLANDER ◽  
L. VAN DAM ◽  
T. ENNS
Keyword(s):  
Nitrogen Secretion

scholarly journals Nitrogen secretion and absorption in different segments of the digestive tract estimated by digesta exchange between 15N-labelled and unlabelled sheep

1999 ◽  
Vol 8 (2) ◽  
pp. 129-143 ◽  
Author(s):  
K. Krawielitzki ◽  
A. Sandek ◽  
J. Kowalczyk ◽  
F. Kreienbring ◽  
T. Żebrowska ◽  
...  
Keyword(s):  
Digestive Tract ◽  
Nitrogen Secretion

Determining of Nitrogen Absorption and Nitrogen Secretion in Different Sections of the Pig's Intestine by Digesta Exchange between15N Labelled and Unlabelled Animals

1990 ◽  
Vol 40 (1-2) ◽  
pp. 25-37 ◽  
Author(s):  
K. Krawielitzki ◽  
Teresa Zebrowska ◽  
Ruthild Schadereit ◽  
J. Kowalczyk ◽  
U. Hennig ◽  
...  
Keyword(s):  
Nitrogen Absorption ◽  
Nitrogen Secretion

Nutrient digestibility and nitrogen balance for high-productive cows fed by polysaccharides

2017 ◽  
Author(s):  
А.В. Косолапов
Keyword(s):  
Nitrogen Balance ◽  
Crude Protein ◽  
Reference Group ◽  
Protein Digestibility ◽  
Nutrient Digestibility ◽  
Nitrogen Excretion ◽  
The Third ◽  
Daily Milk Yield ◽  
Nitrogen Secretion ◽  
Daily Milk

Изложены результаты изучения переваримости питательных веществ и баланса азота у высокопродуктивных коров при введении в рацион полисахаридов. Коровы 1-й (контрольной) группы в составе основного рациона получали свекловичную патоку, коровы 2-й и 3-й опытных групп ― полисахариды в количестве 100 и 150 г на голову в сутки. Использование полисахаридов в количестве 150 г способствовало повышению валового удоя 4 % молока на 6,18 %, выхода молочного белка ― на 4,87 %. Суточные удои молока натуральной жирности у коров 3-й опытной группы составляли 33,15 кг, что на 2,27 кг больше, чем в контрольной группе. Переваримость сухого и органического вещества в контрольной и опытных группах достоверно не различалась. Переваримость сырого протеина была выше у животных, получавших полисахариды. Включение в рационы коров полисахаридов в количестве 150 г на голову в сутки способствовало достоверному повышению переваримости сырой клетчатки до 54,4 % против 50,8 % в контроле. Азот рациона лучше переваривался и использовался  в группах, в которых скармливались  полисахариды. Экскреция азота с мочой была наибольшей в контрольной группе и составляла 302,16 г против 296,9 и 283,79 г в 2-й и 3-й опытных группах соответственно. Увеличение выведения азота из организма животных существенно отразилось на его использовании. У животных контрольной группы этот показатель составил 166,31 г, у коров 3-й опытной группы он был достоверно выше и составил 178,72 г. Баланс азота у животных во всех группах был положительный, но в 3-й опытной группе он был выше контроля на 10,5 %. Добавление в рацион 150 г полисахаридов способствовало увеличению выделения азота с молоком и его использованию от принятого с кормом, что в конечном итоге благоприятно сказалось на продуктивности. The cows of the reference group obtained beet molasses, groups 2 and 3 ― 100 and 150 g of polysaccharides per head daily. 150 g of polysaccharides increased gross yield of 4 %–milk by 6.18 %, milk protein ― by 4.87 %. Daily milk yield for the third group made up 33.15 kg, exceeding the reference group by 2.27 kg. Dry and organic matter digestibility had no significant differences among the groups. Crude protein digestibility was higher for the cows fed by polysaccharides. 150 g of polysaccharides significantly increased crude fiber digestibility up to 54.4 % versus 50.8 % of the reference variant. Nitrogen digestibility was better for the second and third groups. Nitrogen excretion via urine for the reference group was 302.16 g versus 296.9 and 283.79 g for the experimental groups. Increase in nitrogen excretion significantly affected its utilization being 166.31 g for the reference group and 178.72 g ― for the third group. All the groups had positive nitrogen balance but the third group exceeded the reference one by 10.5 %. 150 g of polysaccharides increased nitrogen secretion through milk and milk productivity.

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