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Injecting postpartal gilts or sows with a supraphysiological dose of oxytocin: effects on sow and piglet performances.
Transl Anim Sci
June 2024
Sollio Agriculture, Frampton, QC, CanadaG0R 1M0.
The goal of this project was to determine the effects of a supraphysiological dose of oxytocin given to gilts or multiparous sows 8 to 12 h after the end of farrowing on the performance of their progeny. Sows from three parity groups (1 = parity 1; 2 = parities 2, 3, and 4; 3 = parities 5 to 14) received no injection (CTL, controls; = 17, 27, and 23 for parity groups 1, 2, and 3, respectively) or one intramuscular injection of 75 IU of oxytocin (OXY, = 17, 24, and 26 for parity groups 1, 2, and 3, respectively) 8 to 12 h after birth of the last piglet. Colostrum samples were obtained 8 h after oxytocin injection in 18 sows from parity group 2 (CTL, = 10; OXY, = 8).
View Article and Find Full Text PDFFluoxetine treatment during the postpartal period may have short-term impacts on murine maternal skeletal physiology.
Front Pharmacol
November 2023
Endocrinology and Reproductive Physiology Program, University of Wisconsin-Madison, Madison, WI, United States.
Postpartum depression affects many individuals after parturition, and selective serotonin reuptake inhibitors (SSRIs) are often used as the first-line treatment; however, both SSRIs and lactation are independently associated with bone loss due to the role of serotonin in bone remodeling. Previously, we have established that administration of the SSRI fluoxetine during the peripartal period results in alterations in long-term skeletal characteristics. In the present study, we treated mice with either a low or high dose of fluoxetine during lactation to determine the consequences of the perturbation of serotonin signaling during this time period on the dam skeleton.
View Article and Find Full Text PDFAlterations in skeletal muscle abundance of protein turnover, stress, and antioxidant proteins during the periparturient period in dairy cows fed ethyl-cellulose rumen-protected methionine.
J Dairy Sci
July 2023
Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801. Electronic address:
Skeletal muscle turnover helps support the physiological needs of dairy cows during the transition into lactation. We evaluated effects of feeding ethyl-cellulose rumen-protected methionine (RPM) during the periparturient period on abundance of proteins associated with transport AA and glucose, protein turnover, metabolism, and antioxidant pathways in skeletal muscle. Sixty multiparous Holstein cows were used in a block design and assigned to a control or RPM diet from -28 to 60 d in milk.
View Article and Find Full Text PDFHepatic Lipidosis in Ruminants.
Vet Clin North Am Food Anim Pract
July 2023
Veterinary Physiology, University of Bern, Bremgartenstrasse 109a, 3012 Bern, Switzerland. Electronic address:
Hepatic lipidosis (ie, fatty liver) occurs primarily during the first weeks of lactation in dairy cows because of excessive lipolysis overwhelming the concomitant capacity for beta-oxidation and hepatic export of triglycerides. Besides economic losses due to reduced lactational and reproductive performance, close associations with concomitantly occurring infectious and metabolic health disorders, in particular ketosis, exist. Hepatic lipidosis is not only a consequence from the postpartal negative energy balance but also acts as a disease component for further health disorders.
View Article and Find Full Text PDFImplications of placentation type on species-specific colostrum properties in mammals.
J Anim Sci
December 2022
Veterinary Physiology, Vetsuisse Faculty, University of Bern, Bern, Switzerland.
Maternal care is essential to optimally support survival of the offspring. During evolution of mammalian species, different phenotypes have evolved in relation to gestation length, number, size, and maturation stage of the offspring at parturition, as well as colostrum and milk composition. The aim of the present review is to describe relationships between placental function and colostrum and milk composition in different mammalian species.
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