Biomaterial Database

Response of broilers to DL-methionine hydroxy analog free acid, DL-methionine, and L-methionine. 1985

J D Garlich

An experiment was designed to compare graded levels of DL-methionine hydroxy analog, free acid, 88% in aqueous solution; 2-hydroxy-4-(methylthio)butanoic acid (HMB), the aqueous solution of the sodium salt of DL-methionine (40%) (DLM), and crystalline L-methionine (LM) as sources of supplemental methionine activity. The experiment utilized 2160 broilers of each sex grown in separate pens to 7 weeks of age with a lysine-supplemented corn-soybean meal basal diet. These supplements produced a maximum 15% growth response over the unsupplemented basal diet. There were no statistically significant differences among the three sources in producing weight gain and feed conversion. There were no source X level interactions with regard to body weight gain. There was one source X level interaction (at 7 weeks) for feed conversion. The results support the conclusion that when synthetic sources of methionine activity are used to meet the requirement for total sulfur amino acids in practical corn-soybean meal diets for producing 7-week-old broilers, the chicks are capable of utilizing HMB, DLM, and LM with an efficiency that is indistinguishable.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008715	Methionine	A sulfur-containing essential L-amino acid that is important in many body functions.	L-Methionine,Liquimeth,Methionine, L-Isomer,Pedameth,L-Isomer Methionine,Methionine, L Isomer
D001835	Body Weight	The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.	Body Weights,Weight, Body,Weights, Body
D002645	Chickens	Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA.	Gallus gallus,Gallus domesticus,Gallus gallus domesticus,Chicken
D005260	Female		Females
D005527	Food, Fortified	Any food that has been supplemented with essential NUTRIENTS either in quantities that are greater than those normally present, or which are not found in the food typically. Fortified food also includes food enriched by adding various nutrients to compensate for those removed by refinement or processing. (Modified from Segen, Dictionary of Modern Medicine, 1992).	Enriched Food,Food, Supplemented,Enriched Foods,Food, Enriched,Foods, Enriched,Foods, Fortified,Foods, Supplemented,Fortified Food,Fortified Foods,Supplemented Food,Supplemented Foods
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
D012737	Sex Factors	Maleness or femaleness as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or effect of a circumstance. It is used with human or animal concepts but should be differentiated from SEX CHARACTERISTICS, anatomical or physiological manifestations of sex, and from SEX DISTRIBUTION, the number of males and females in given circumstances.	Factor, Sex,Factors, Sex,Sex Factor
D013237	Stereoisomerism	The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)	Molecular Stereochemistry,Stereoisomers,Stereochemistry, Molecular,Stereoisomer