Relationship between lactational performance and metabolic parameters of Mongolian native grazing mares
| Autor: | Motohiro Horiuchi, Purevdorj Ulzii-Orshikh, Davaakhuu Bayanbat, Sedhuu Burenjargal, Purevdorj Nyam-Osor, Ooyo Jamyandorj, Munkhbat Enkhdalai, Tserenpil Baigalmaa, Dashdorj Janchiv, Badrakh Sandagdorj |
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| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Full Paper Equine Insulin medicine.medical_treatment Albumin Fatty acid lactation Biology milk yield chemistry.chemical_compound Animal science NEFA medicine.anatomical_structure chemistry Lactation metabolic parameter milk composition medicine Urea Mare milk Lactose |
| Zdroj: | Journal of Equine Science |
| ISSN: | 1347-7501 1340-3516 |
| DOI: | 10.1294/jes.32.91 |
| Popis: | Information regarding the lactational performance of mares in relation to metabolic parameters can help practitioners to manipulate animal rearing management for sustainable mare milk production. The aim of this study was to characterize the lactational performance of Mongolian native mares grazing on natural pastureland by revealing the seasonal effects on metabolic parameters. In this study, 8 multiparous mares were used. Milk yield and composition and serum metabolic parameters, such as alanine aminotransferase, aspartate aminotransferase (AST), glucose (GLU), triacylglycerol, total cholesterol (TCH), non-esterified fatty acid (NEFA), albumin, urea, total protein, cortisol (Cort), and insulin, were determined at 30, 60, 90, 120, 150, 180, 210, 240, and 270 days of lactation. During the lactation period, milk yield peaked at around the 90th day and declined sharply in the following period. While the milk fat and protein contents decreased gradually from the early stages of lactation to the late stages, the lactose content was highest at mid-lactation and stayed constant until the end of the lactation period. Meanwhile, changes were observed between the stages of lactation, and the differences in metabolic parameters were significant (P |
| Databáze: | OpenAIRE |
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