Maternal Age, Parity and Nursing Status at Fertilization Affects Postpartum Lactation Up to Weaning in Horses.

Autor: Derisoud E; Department of Physiology and Pharmacology, Karolinska Institutet, Solna, Stockholm, Sweden. Electronic address: emilie.derisoud@gmail.com., Auclair-Ronzaud J; IFCE, Plateau technique de Chamberet, Chamberet, France., Rousseau-Ralliard D; Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France; Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France., Philau S; Institut Agro, INRAE, PEGASE, Saint Gilles, France., Aujean E; INRAE, AgroParisTech, GABI, University of Paris-Saclay, Jouy-en-Josas, France., Durand A; Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France; Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France., Dahirel M; Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France; Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France., Charlier M; INRAE, AgroParisTech, GABI, University of Paris-Saclay, Jouy-en-Josas, France., Boutinaud M; Institut Agro, INRAE, PEGASE, Saint Gilles, France., Wimel L; IFCE, Plateau technique de Chamberet, Chamberet, France., Chavatte-Palmer P; Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France; Ecole Nationale Vétérinaire d'Alfort, BREED, Maisons-Alfort, France.
Jazyk: angličtina
Zdroj: Journal of equine veterinary science [J Equine Vet Sci] 2023 Sep; Vol. 128, pp. 104868. Date of Electronic Publication: 2023 Jun 16.
DOI: 10.1016/j.jevs.2023.104868
Abstrakt: Nulliparity is associated with intra-uterine growth retardation and foal delayed catch-up growth. Older mares produce larger/taller foals than the precedents. Nursing at conception on foal growth had not been investigated yet. In any case, milk production conditions the foal's growth. This study aimed to determine effects of mare parity, age and nursing on subsequent lactation quantity and quality. Saddlebred mares and their foals (N = 43) run as a single herd over the same year were: young (6-7-year-old) primiparous, young multiparous, old (10-16-year-old) multiparous nursing at insemination time or old multiparous barren the previous year. No young nursing nor old multiparous mares were available. Colostrum was collected. Milk production and foal weight were monitored at 3-, 30-, 60-, 90- and 180-days postfoaling. The foal average daily weight gain (ADG) was calculated for each period between two measurements. Milk fatty acid (FA), sodium, potassium, total protein and lactose contents were determined. The primiparous versus multiparous colostrum was richer in immunoglobulin G, with lower production but greater FA contents in milk. The primiparous foals had a lower ADG for 3 to 30 days postpartum period. Old mares' colostrum contained more SFA and less polyunsaturated FA (PUFA) whereas their milk was richer in proteins and sodium and poorer in short-chain-SFA with a reduced PUFA/SFA ratio at 90 days. Nursing mares' colostrum was richer in MUFA and PUFA and late-lactation milk production was reduced. In conclusion, parity, age and nursing at conception affect mare's colostrum and milk production and foal growth and should be considered for broodmares' management.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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