Biomaterial Database

Crystalline amino acid diet for determining amino acid requirements of growing guinea pigs. 1982

D M Jeffery, and J T Typpo

Crystalline amino acid diets containing different levels of total nitrogen (TN) and essential amino acid (EAA) nitrogen were evaluated in 3-week growth trials to identify a diet for use in determining the amino acid requirements of growing guinea pigs. Four levels of TN (2.5, 2.9, 3.6, and 4.3%) with constant EAA/TN ratios were compared by measuring weight gain, hemoglobin and hematocrit, carcass weight and nitrogen retention of 3-to 6-week-old male Hartley guinea pigs. Three levels of EAA nitrogen (1.7, 2.0, 2.4%), with TN levels constant at 3.6%, were also compared. A diet containing 30% casein + 0.3% arginine served as a purified control diet. Water and diets were provided ad libitum. The results of this study indicate that a diet containing 3.6% TN and 1.7% EAA nitrogen supported performance comparable to that of animals fed the casein diet. Growth rates for this amino acid diet and the casein diet both averaged 5.8 g/day.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009584	Nitrogen	An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.
D009751	Nutritional Requirements	The amounts of various substances in food needed by an organism to sustain healthy life.	Dietary Requirements,Nutrition Requirements,Dietary Requirement,Nutrition Requirement,Nutritional Requirement,Requirement, Dietary,Requirement, Nutrition,Requirement, Nutritional,Requirements, Dietary,Requirements, Nutrition,Requirements, Nutritional
D002364	Caseins	A mixture of related phosphoproteins occurring in milk and cheese. The group is characterized as one of the most nutritive milk proteins, containing all of the common amino acids and rich in the essential ones.	alpha-Casein,gamma-Casein,AD beta-Casein,Acetylated, Dephosphorylated beta-Casein,Casein,Casein A,K-Casein,Sodium Caseinate,alpha(S1)-Casein,alpha(S1)-Casein A,alpha(S1)-Casein B,alpha(S1)-Casein C,alpha(S2)-Casein,alpha-Caseins,beta-Casein,beta-Caseins,epsilon-Casein,gamma-Caseins,kappa-Casein,kappa-Caseins,AD beta Casein,Caseinate, Sodium,K Casein,alpha Casein,alpha Caseins,beta Casein,beta Caseins,beta-Casein Acetylated, Dephosphorylated,beta-Casein, AD,epsilon Casein,gamma Casein,gamma Caseins,kappa Casein,kappa Caseins
D006168	Guinea Pigs	A common name used for the genus Cavia. The most common species is Cavia porcellus which is the domesticated guinea pig used for pets and biomedical research.	Cavia,Cavia porcellus,Guinea Pig,Pig, Guinea,Pigs, Guinea
D000596	Amino Acids	Organic compounds that generally contain an amino (-NH2) and a carboxyl (-COOH) group. Twenty alpha-amino acids are the subunits which are polymerized to form proteins.	Amino Acid,Acid, Amino,Acids, Amino
D000601	Amino Acids, Essential	Amino acids that are not synthesized by the human body in amounts sufficient to carry out physiological functions. They are obtained from dietary foodstuffs.	Essential Amino Acid,Essential Amino Acids,Acid, Essential Amino,Acids, Essential Amino,Amino Acid, Essential
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001120	Arginine	An essential amino acid that is physiologically active in the L-form.	Arginine Hydrochloride,Arginine, L-Isomer,DL-Arginine Acetate, Monohydrate,L-Arginine,Arginine, L Isomer,DL Arginine Acetate, Monohydrate,Hydrochloride, Arginine,L Arginine,L-Isomer Arginine,Monohydrate DL-Arginine Acetate