Alfalfa as a single dietary source for molt induction in laying hens. 2005

K L Landers, and C L Woodward, and X Li, and L F Kubena, and D J Nisbet, and S C Ricke
Department of Poultry Science, Texas A&M University, College Station, TX 77843, USA.

Molting is a process by which a hen's reproductive tract is rejuvenated prior to the beginning of a laying cycle. This process is often artificially induced in commercial settings in order to extend the productive life of a flock of hens. The most common method for the induction of molt is feed withdrawal for a period of several days. It has been noted that feed withdrawal, while effective in inducing molt and allowing an adequate reproductive rest period for the hen, may cause deleterious effects on the animal. This has prompted the investigation of alternatives to feed deprivation for the induction of molt in commercial laying hens. This study involved feeding alfalfa to hens to assess its ability to induce molt. Results show that alfalfa meal and alfalfa pelleted diets were equally effective as feed withdrawal in causing ovary weight regression in birds. Molted hens induced by alfalfa diets exhibited postmolt levels of egg production over a twelve week period that were similar to that of hens molted by feed withdrawal. The postmolt eggs laid by hens molted by alfalfa were of comparable quality to eggs from feed deprived hens. Alfalfa, a fibrous feed with low metabolizable energy, may be provided to hens on an ad libitum basis for an effective molt induction that retains comparable egg quality and production.

UI MeSH Term Description Entries
D012098 Reproduction The total process by which organisms produce offspring. (Stedman, 25th ed) Human Reproductive Index,Human Reproductive Indexes,Reproductive Period,Human Reproductive Indices,Index, Human Reproductive,Indexes, Human Reproductive,Indices, Human Reproductive,Period, Reproductive,Periods, Reproductive,Reproductive Index, Human,Reproductive Indices, Human,Reproductive Periods
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
D004531 Eggs Animal reproductive bodies, or the contents thereof, used as food. The concept is differentiated from OVUM, the anatomic or physiologic entity.
D005260 Female Females
D005836 Genitalia, Female The female reproductive organs. The external organs include the VULVA; BARTHOLIN'S GLANDS; and CLITORIS. The internal organs include the VAGINA; UTERUS; OVARY; and FALLOPIAN TUBES. Accessory Sex Organs, Female,Sex Organs, Accessory, Female,Genital Organs, Female,Genitals, Female,Reproductive System, Female,Female Genital,Female Genital Organ,Female Genital Organs,Female Genitalia,Female Genitals,Female Reproductive System,Female Reproductive Systems,Genital Organ, Female,Genital, Female,Reproductive Systems, Female
D000455 Medicago sativa A plant species of the family FABACEAE widely cultivated for ANIMAL FEED. Alfalfa,Lucerne
D000704 Analysis of Variance A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable. ANOVA,Analysis, Variance,Variance Analysis,Analyses, Variance,Variance Analyses
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
D000821 Animal Feed Foodstuff used especially for domestic and laboratory animals, or livestock. Fodder,Animal Feeds,Feed, Animal,Feeds, Animal,Fodders
D000824 Animal Nutritional Physiological Phenomena Nutritional physiology of animals. Animal Nutrition Physiology,Animal Nutritional Physiology Phenomena,Animal Nutritional Physiological Phenomenon,Animal Nutritional Physiology,Animal Nutritional Physiology Phenomenon,Veterinary Nutritional Physiology,Nutrition Physiologies, Animal,Nutrition Physiology, Animal,Nutritional Physiology, Animal,Nutritional Physiology, Veterinary,Physiology, Animal Nutrition,Physiology, Animal Nutritional,Physiology, Veterinary Nutritional

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