scholarly journals The Utilization of Ammonia Nitrogen from Various Ammonium Salts in the Growing Rats Fed an Amino Acid Diet Lacking in Nonessential Amino Acids (I)

1970 ◽  
Vol 23 (8) ◽  
pp. 526-531
Author(s):  
Yuriko Ichihara ◽  
Shuhachi Kiriyama ◽  
Akira Yoshida
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Ammonia Nitrogen ◽  
Ammonium Salts ◽  
Growing Rats ◽  
Acid Diet ◽  
Amino Acid Diet ◽  
Nonessential Amino Acids

scholarly journals Utilization of Nutrients in a Crystalline Amino Acid Diet as Influenced by Certain Non-Essential Amino Acids

1959 ◽  
Vol 38 (2) ◽  
pp. 489-491 ◽  
Author(s):  
G.J. Klain ◽  
H.M. Scott ◽  
B. Connor Johnson
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Essential Amino Acids ◽  
Acid Diet ◽  
Amino Acid Diet

scholarly journals Studies on unidentified growth factors

1974 ◽  
Vol 31 (2) ◽  
pp. 179-184 ◽  
Author(s):  
J. Bunyan ◽  
Elspeth A. Murrell ◽  
M. A. Cawthorne ◽  
B. T. Redman
Keyword(s):  
Amino Acids ◽  
Growth Rate ◽  
Amino Acid ◽  
Soya Bean ◽  
Torula Yeast ◽  
Acid Diet ◽  
Organic Growth ◽  
Organic Factor ◽  
Amino Acid Diet ◽  
Low Activity

1. Chicks at 10 d of age were given diets containing all the nutrients known to be required, with L-amino acids in place of protein. Dietary supplements were added isonitrogenously.2. Ox liver (100 g/kg) greatly improved the chicks' growth rate, whereas torula yeast (50 g/kg) was inactive. The activity of fresh moist liver was considered to be due largely to an organic factor, because of the inactivity of water and the low activity of liver ash.3. The growth rates of chicks receiving diets based upon casein and isolated soya-bean protein were significantly improved by the inclusion of 100 g fresh ox liver/kg, but not of 50 g torula yeast/kg.4. These results show that chicks receiving an amino acid diet require an organic growth factor (Progressin) that differs from the yeast factor required by rats receiving an amino acid diet.

Effect of amino acid blend as alternative to antibiotics for growing pigs

2022 ◽  
Author(s):  
Maykelly da S Gomes ◽  
Alysson Saraiva ◽  
Dante T Valente Júnior ◽  
Leandro L de Oliveira ◽  
Amanda M Correia ◽  
...  
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Control Diet ◽  
Growing Pigs ◽  
Daily Weight Gain ◽  
Feed Ratio ◽  
Antioxidant Power ◽  
Acid Diet ◽  
Amino Acid Diet ◽  
Intermediate Results

Abstract This study aimed to evaluate the effect of supplementing arginine (Arg) + glutamine (Gln) replacing antibiotics on performance, immune response, and antioxidant capacity of pigs in the growing phase. One hundred and fifty 63-d-old pigs with initial body weight (BW) of 25.0 ± 1.46 kg were distributed in a randomized block design, with three treatments and ten replicates. The three diets were control; antibiotic, control + 100 mg/kg tiamulin and 506 mg/kg oxytetracycline; amino acid, control + 10 g/kg Arg and 2 g/kg Gln. Dietary treatments were fed from 63 to 77 d. Following the treatment period, all pigs were fed the control diet from 77 to 90 d. Data were analyzed using GLIMMIX and UNIVARIATE in SAS 9.4. From 63 to 70 d, pigs fed diets with antibiotics had improved (P < 0.05) average daily feed intake (ADFI), average daily weight gain (ADG), gain to feed ratio (G:F), and 70 d BW compared to those fed control or amino acid diets. From 70 to 77 d, including antibiotics in the diet increased (P < 0.05) ADG and 77 d BW. From 77 to 90 d, pigs fed the amino acid diet had greater (P < 0.05) ADG and ADFI than those fed an antibiotic diet. From 63 to 90 d, although pig performance was not affected (P > 0.05), growth curve of pigs fed the antibiotic diets was different (P < 0.05) from those fed the control and amino acids diets. At 70 d, serum tumor necrosis factor-α and diamine oxidase (DAO) were lower (P < 0.05) in pigs fed the antibiotic diet than the control diet, and pigs fed the amino acid diet had intermediate results. Ferric reducing antioxidant power (FRAP) was lower (P < 0.05) in pigs fed the amino acid diet than the antibiotic diet, and pigs fed the control diet had intermediate results. At 70 and 77 d, serum urea nitrogen was higher (P < 0.05) in pigs fed the amino acid diet. At 77 d, DAO and serum immunoglobulin G was lower (P < 0.05) in pigs fed the antibiotic diet. FRAP was lower (P < 0.05) in pigs fed the amino acid and control diets. Serum malondialdehyde was higher (P < 0.05) in pigs fed the amino acid diet than those fed the control diet, and pigs fed the antibiotic diet had intermediate results. At 90 d, antibiotics or amino acids did not affect (P > 0.05) serum parameters. Amino acid blend supplementation at the selected doses in this study did not positively affect growing pigs. Although from 63 to 77 d, antibiotics improved performance, when considering the overall study period, growing pigs did not benefit from a diet containing antibiotics.

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