scholarly journals Effect of Processing Methods and Amino Acid Supplementation on Dietary Utilization of Feather Meal Protein by Chicks

1961 ◽  
Vol 40 (5) ◽  
pp. 1234-1245 ◽  
Author(s):  
Edward C. Naber ◽  
S.P. Touchburn ◽  
B.D. Barnett ◽  
C.L. Morgan
Keyword(s):  
Amino Acid ◽  
Amino Acid Supplementation ◽  
Feather Meal ◽  
Processing Methods ◽  
Acid Supplementation ◽  
Meal Protein

Amino acid supplementation of hydrolyzed feather meal diets for finisher pigs1,2

2009 ◽  
Vol 87 (4) ◽  
pp. 1270-1281 ◽  
Author(s):  
K. C. Divakala ◽  
L. I. Chiba ◽  
R. B. Kamalakar ◽  
S. P. Rodning ◽  
E. G. Welles ◽  
...  
Keyword(s):  
Amino Acid ◽  
Amino Acid Supplementation ◽  
Feather Meal ◽  
Acid Supplementation

scholarly journals Effects of Dietary Fishmeal Replacement by Poultry By-Product Meal and Hydrolyzed Feather Meal on Liver and Intestinal Histomorphology and on Intestinal Microbiota of Gilthead Seabream (Sparus aurata)

2021 ◽  
Vol 11 (19) ◽  
pp. 8806
Author(s):  
Pier Psofakis ◽  
Alexandra Meziti ◽  
Panagiotis Berillis ◽  
Eleni Mente ◽  
Konstantinos A. Kormas ◽  
...  
Keyword(s):  
Amino Acid ◽  
Intestinal Microbiota ◽  
Sparus Aurata ◽  
Control Diet ◽  
Specific Pattern ◽  
Gilthead Seabream ◽  
Amino Acid Supplementation ◽  
Feather Meal ◽  
Acid Supplementation ◽  
Fishmeal Replacement

The effects on liver and intestinal histomorphology and on intestinal microbiota in gilthead seabream (Sparus aurata) fed diets that contained poultry by-product meal (PBM) and hydrolyzed feather meal (HFM) as fishmeal replacements were studied. Fish fed on a series of isonitrogenous and isoenergetic diets, where fishmeal protein of the control diet (FM diet) was replaced by either PBM or by HFM at 25%, 50% and 100% without amino acid supplementation (PBM25, PBM50, PBM100, HFM25, HFM50 and HFM100 diets) or supplemented with lysine and methionine (PBM25+, PBM50+, HFM25+ and HFM50+ diets). The use of PBM and HFM at 25% fishmeal replacement generated a similar hepatic histomorphology to FM-fed fish, indicating that both land animal proteins are highly digestible at low FM replacement levels. However, 50% and 100% FM replacement levels by either PBM or HFM resulted in pronounced hepatic alterations in fish with the latter causing more severe degradation of the liver. Dietary amino acid supplementation delivered an improved tissue histology signifying their importance at high FM replacement levels. Intestinal microbiota was dominated by Proteobacteria (58.8%) and Actinobacteria (32.4%) in all dietary groups, but no specific pattern was observed among them at any taxonomic level. This finding was probably driven by the high inter-individual variability observed.

Meat and Bone Characteristics of Broiler Chickens Fed Groundnut Cake-Based Diets as Affected by Graded Dietary Supplements of Crystalline L- Lysine and DL- Methionine

2016 ◽  
Vol 6 (1) ◽  
pp. 846-852
Author(s):  
Olugbenga Adeniran Ogunwole ◽  
B. C Majekodunmi ◽  
R. A Faboyede ◽  
D. Ogunsiji
Keyword(s):  
Amino Acid ◽  
Broiler Chickens ◽  
Bone Development ◽  
Thiobarbituric Acid ◽  
Broiler Chicks ◽  
Amino Acid Supplementation ◽  
Acid Supplementation ◽  
Groundnut Cake ◽  
Randomized Design ◽  
Phosphorus And Potassium

Effects of supplemental dietary lysine and methionine in a Groundnut Cake (GNC) based diets on meat and bone characteristics of broiler chickens were investigated. In a completely randomized design, a total of 168 one - day – old Arbor acre broiler chicks were randomly allocated to seven dietary treatments each in triplicate of eight birds per replicate. The Seven starter and finishers’ diets were: GNC based diets without any amino acid (lysine or methionine) supplementation (T1); GNC diet + 0.2% lysine (T2); GNC diet + 0.4% lysine (T3); GNC diet + 0.2% methionine (T4); GNC diet + 0.4% methionine (T5); GNC diet + 0.2 lysine and 0.2% methionine (T6) and GNC diet + 0.4% lysine and 0.4% methionine (T7). Experimental diets and water were offered to birds ad libitum in an experiment lasting six-week. At day 42, two birds per replicate were slaughtered, meat and bone characteristics determined. There were significant variations (P<0.05) in the crude protein (%) and ether extract (%), pH1 and pH2 of meat. Thiobarbituric acid reactive substances composition of meat at days 0, 5, and 10 were similar (P<0.05) and were not affected by dietary amino acid supplementation. Tibiotarsal index (mg/mm) of bone (22.10, 27.25, 33.35, 31.40, 28.70, 31.45 and 29.75 for broilers on T1, T2, T3, T4, T5, T6 and T7, respectively) were increased significantly (P<0.05) by amino acid supplementation. Significantly differences (P<0.05) were observed in the calcium, phosphorus and potassium (%) contents of broilers’ bone across treatments. Supplemental lysine and both lysine and methionine improved meat quality and bone development of broiler chickens in this study.

A rational design approach for amino acid supplementation in hepatocyte culture

2009 ◽  
Vol 103 (6) ◽  
pp. 1176-1191 ◽  
Author(s):  
Hong Yang ◽  
Charles M. Roth ◽  
Marianthi G. Ierapetritou
Keyword(s):  
Amino Acid ◽  
Rational Design ◽  
Design Approach ◽  
Hepatocyte Culture ◽  
Amino Acid Supplementation ◽  
Acid Supplementation
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