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Effects of dehydration and arginine vasopressin infusions on the production of milk and the morphology of the goat udder

Published online by Cambridge University Press:  01 June 2009

Kristina Dahlborn
Affiliation:
Department of Animal Physiology, Faculty of Agriculture, Swedish University of Agricultural Sciences, S-750 07 Uppsala, Sweden
Jamal Hossaini Hilali
Affiliation:
Department of Animal Physiology, Faculty of Agriculture, Swedish University of Agricultural Sciences, S-750 07 Uppsala, Sweden
Heriberto Rodriguez-Martinez
Affiliation:
Department of Anatomy and Histology, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, S-750 07 Uppsala, Sweden

Summary

Lactating goats were subjected to dehydration and to infusions of arginine vasopressin (AVP). Dehydration decreased milk production significantly but no changes were observed on the day of AVP infusion. The levels of AVP in plasma reached the same magnitude during both experimental procedures. AVP-immunoreactivity was immunocytochemically detected by light (peroxidase-antiperoxidase technique) and electron microscopy (immuno-Au technique on to glutaraldehyde-fixed, resin-embedded sections) in the mammary gland but not in the control experiments. In addition the cisternae of the rough endoplasmic reticulum in the secretory alveolar cells underwent significant swelling in response to the experimental procedures.

Type
Original Articles
Copyright
Copyright © Proprietors of Journal of Dairy Research 1990

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