We have developed a treatment protocol for the successful induction of lactation in mares. This treatment consists of estrogen, progesterone, and sulpiride administration for 1 wk. Mares with induced lactation are able to adopt and nurse a foal to weaning age. Authors’ addresses: Equitechnic, Le Mesnil Vicomte, France (Daels); Physiology of Reproduction and Behavior, INRA, 37380 Nouzilly, Franc...

Expression of the mouse whey acidic protein (WAP) gene is specific to the mammary gland, is induced several thousand-fold during pregnancy, and is under the control of steroid and peptide hormones. To study developmental regulation of the mouse WAP gene, a 7.2-kilobase (kb) WAP transgene, including 2.6 kb of 5'- and 1.6 kb of 3'-flanking sequences, was introduced into mice. Of the 13 lines of m...

Pietersma, D., Lacroix, R., Lefebvre, D. and Wade, K.M. 2002. Decision-tree induction to interpret lactation curves. Canadian Biosystems Engineering/Le génie des biosystèmes au Canada 44: 7.1 7.13. Decision-tree induction was used to learn to interpret paritygroup average lactation curves automatically in dairy farming. Three parity groups were involved consisting of cows in their first, second...

Management of calves and heifers directly influence the future productivity dairy animals. However, pre-production stage is often neglected by farmers, as young cows do not yet produce milk and, therefore, revenue, while representing an important part total cost property. This study aimed to identify determine economic value factors influencing production in first lactation a herd. was case car...

BACKGROUND The impact of maternal ingestion of peanut during pregnancy and lactation on an offspring's risk for peanut allergy is under debate. OBJECTIVE To investigate the influence of maternal dietary peanut exposure and breast milk on an offspring's allergy risk. METHODS Preconceptionally peanut-exposed C3H/HeJ females were either fed or not fed peanut during pregnancy and lactation. The...