The source of protein in calf diets. II. Meat meal quality

1967 ◽  
Vol 18 (1) ◽  
pp. 157 ◽  
Author(s):  
J Leibholz ◽  
FP Moss
Keyword(s):  
Amino Acid ◽  
Blood Plasma ◽  
Free Amino Acid ◽  
Free Amino ◽  
Feed Utilization ◽  
Meat Meal ◽  
Meal Quality ◽  
Significant Difference ◽  
Different Sources

In experiments designed to study the effect of the quality of meat meal on growth and efficiency of feed utilization, diets containing meat meals from six different sources were given to 78 male Friesian calves between 5 and 11 weeks of age, 19 calves between 11 and 17 weeks of age, and 168 chickens. The source of meat meal resulted in a significant difference in liveweight gain in the calves; this was related to the calcium and cystine contents of the meat meals. For chickens the effect of meat meal source was dependent on the formulation of the diets. The free amino acid, ammonia, and urea concentrations in the blood plasma of both species are presented.

Free Amino Acid Profile in Blood Plasma of Bats (Myotis dasycneme Boie, 1825) Exposed to Low Positive and Near-Zero Temperatures

2018 ◽  
Vol 54 (4) ◽  
pp. 281-291
Author(s):  
L. A. Kovalchuk ◽  
V. A. Mishchenko ◽  
N. V. Mikshevich ◽  
L. V. Chernaya ◽  
M. V. Chibiryak ◽  
...  
Keyword(s):  
Amino Acid ◽  
Blood Plasma ◽  
Free Amino Acid ◽  
Free Amino ◽  
Amino Acid Profile ◽  
In Blood Plasma

scholarly journals Effect of Different Edaphic Crop Conditions on the Free Amino Acid Profile of PH-16 Dry Cacao Beans

Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1637
Author(s):  
Quintino Reis de Araujo ◽  
Guilherme Amorim Homem de Abreu Loureiro ◽  
Cid Edson Mendonça Póvoas ◽  
Douglas Steinmacher ◽  
Stephane Sacramento de Almeida ◽  
...  
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Glutamic Acid ◽  
Free Amino Acid ◽  
Free Amino Acids ◽  
Free Amino ◽  
Principal Component ◽  
Amino Acid Profile ◽  
Gamma Aminobutyric Acid ◽  
Significant Difference

Free amino acids in cacao beans are important precursors to the aroma and flavor of chocolate. In this research, we used inferential and explanatory statistical techniques to verify the effect of different edaphic crop conditions on the free amino acid profile of PH-16 dry cacao beans. The decreasing order of free amino acids in PH-16 dry cacao beans is leucine, phenylalanine, glutamic acid, alanine, asparagine, tyrosine, gamma-aminobutyric acid, valine, isoleucine, glutamine, lysine, aspartic acid, serine, tryptophan, threonine, glycine. With the exception of lysine, no other free amino acid showed a significant difference between means of different edaphic conditions under the ANOVA F-test. The hydrophobic free amino acids provided the largest contribution to the explained variance with 58.01% of the first dimension of the principal component analysis. Glutamic acid stands out in the second dimension with 13.09%. Due to the stability of the biochemical profile of free amino acids in this clonal variety, it is recommended that cacao producers consider the genotype as the primary source of variation in the quality of cacao beans and ultimately the chocolate to be produced.

Effects of methionine as free amino acid and dipeptide on productive efficiency and meat quality of broilers under acute and chronic heat stress

2021 ◽  
Author(s):  
Fabiana Cristina Belchior de Sousa ◽  
Ana Paula Del Vesco ◽  
Vittor Zancanela ◽  
Thais Pacheco Santana ◽  
Angélica de Souza Khatlab ◽  
...  
Keyword(s):  
Heat Stress ◽  
Amino Acid ◽  
Free Amino Acid ◽  
Meat Quality ◽  
Free Amino ◽  
Productive Efficiency

scholarly journals Quality Assessment of Fresh Meat from Several Species Based on Free Amino Acid and Biogenic Amine Contents during Chilled Storage

Foods ◽  
2018 ◽  
Vol 7 (9) ◽  
pp. 132 ◽  
Author(s):  
Mehdi Triki ◽  
Ana Herrero ◽  
Francisco Jiménez-Colmenero ◽  
Claudia Ruiz-Capillas
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Free Amino Acid ◽  
Biogenic Amine ◽  
Free Amino Acids ◽  
Free Amino ◽  
Behavior Pattern ◽  
Chicken Breast ◽  
Total Free Amino Acids

This paper studies the changes that occur in free amino acid and biogenic amine contents of raw meats (beef, pork, lamb, chicken and turkey) during storage (2 °C, 10 days). The meat cuts samples were harvested from a retail outlet (without getting information on the animals involved) as the following: Beef leg (four muscles), pork leg (five muscles), lamb leg (seven muscles), turkey leg (four muscles), and chicken breast (one muscle). Meat composition varied according to meat types. In general, pH, microbiology counts, biogenic amine (BA), and free amino acid (FAA) contents were also affected by meat types and storage time (p < 0.05). Chicken and turkey presented the highest levels (p < 0.05) of FAAs. Total free amino acids (TFAA) were higher (p < 0.05) in white meats than in red ones. The behavior pattern, of the total free amino acids precursors (TFAAP) of Bas, was saw-toothed, mainly in chicken and turkey meat during storage, which limits their use as quality indexes. Spermidine and spermine contents were initially different among the meats. Putrescine was the most prevalent BA (p < 0.05) irrespective of species. In general, chicken and turkey contained the highest (p < 0.05) levels of BAs, and TFAAP of BAs. In terms of the biogenic amine index (BAI), the quality of chicken was the worst while beef meat was the only sample whose quality remained acceptable through the study. This BAI seems to be more suitable as a quality index for white meat freshness than for red meat, especially for beef.

Sign in / Sign up

Export Citation Format

Share Document