Nutritional composition, fatty acids profile and immunoglobulin G concentrations of mare milk of the Chilean Corralero horse breed

A - Papers appearing in refereed journals

Rivero, M. J., Cooke, A., Gandarillas, M, Leon, R, Merino, V. M. and Velasquz, A 2024. Nutritional composition, fatty acids profile and immunoglobulin G concentrations of mare milk of the Chilean Corralero horse breed. PLOS ONE. https://doi.org/10.1371/journal.pone.0310693

AuthorsRivero, M. J., Cooke, A., Gandarillas, M, Leon, R, Merino, V. M. and Velasquz, A
Abstract

The objective was to analyze the nutritional composition, fatty acid profile, and IgG concentration of the milk produced by Chilean Corralero horse (CCH ) mares from breeding farms located in southern Chile. Forty-five milk samples were collected from three of the biggest breeding farms (coded as A, B and C) specialized in breeding and selection of CCH in Chile (15 mares sampled per farm). Farms differed in days in milk (DIM). A negative association between DIM and ash, milk protein, milk solids, saturated fatty acids (SFA), and gross energy (GE) was found, whereas DIM had a positive association with monounsaturated fatty acids (MUFA). Milk components like fat, lactose, and energy content varied independently of DIM, indicating other influencing factors such as farm-specific management practices. Offspring sex moderately affected GE content, with milk from mares bearing female offspring having higher GE. Macronutrient profiles of the CCH mares' milk is within the reported range for other horse breeds but tends to have lower fat and total solids. Compared to cow and human milk, horse milk is richer in lactose and lower in fat and protein. Immunoglobulin G concentration was only affected by the farm effect (B > A) which could be linked to dietary factors and pasture composition rather than maternal parity or other known factors. Overall, CCH mare milk has notable nutritional characteristics, with implications for both foal health and potential human consumption, posing less cardiac risk compared to cow's milk as indicated by lower atherogenic and thrombogenic indices.

Year of Publication2024
JournalPLOS ONE
Digital Object Identifier (DOI)https://doi.org/10.1371/journal.pone.0310693
Web address (URL)https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0310693
Open accessPublished as ‘gold’ (paid) open access
FunderBiotechnology and Biological Sciences Research Council
Funder project or codeS2N - Soil to Nutrition - Work package 2 (WP2) - Adaptive management systems for improved efficiency and nutritional quality
Growing Health [ISP]
Publisher's version
Copyright license
CC BY
Output statusPublished
Publication dates
Online19 Sep 2024
Publication process dates
Accepted04 Sep 2024
PublisherPublic Library of Science (PLOS)
ISSN1932-6203

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