Article (Scientific journals)
Maternal Nutrition during Pregnancy Affects Testicular and Bone Development, Glucose Metabolism and Response to Overnutrition in Weaned Horses Up to Two Years.
Robles, M; Gauthier, C; Mendoza García, Luis et al.
2017In PLoS ONE, 12 (e0169295)
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Keywords :
Development orhtopaedic disease; horse
Abstract :
[en] INTRODUCTION: Pregnant mares and post-weaning foals are often fed concentrates rich in soluble carbohydrates, together with forage. Recent studies suggest that the use of concentrates is linked to alterations of metabolism and the development of osteochondrosis in foals. The aim of this study was to determine if broodmare diet during gestation affects metabolism, osteoarticular status and growth of yearlings overfed from 20 to 24 months of age and/or sexual maturity in prepubertal colts. MATERIAL AND METHODS: Twenty-four saddlebred mares were fed forage only (n = 12, group F) or cracked barley and forage (n = 12, group B) from mid-gestation until foaling. Colts were gelded at 12 months of age. Between 20 and 24 months of age, all yearlings were overfed (+140% of requirements) using an automatic concentrate feeder. Offspring were monitored for growth between 6 and 24 months of age, glucose homeostasis was evaluated via modified frequently sampled intra veinous glucose tolerance test (FSIGT) at 19 and 24 months of age and osteoarticular status was investigated using radiographic examinations at 24 months of age. The structure and function of testicles from prepubertal colts were analyzed using stereology and RT-qPCR. RESULTS: Post-weaning weight growth was not different between groups. Testicular maturation was delayed in F colts compared to B colts at 12 months of age. From 19 months of age, the cannon bone was wider in B vs F yearlings. F yearlings were more insulin resistant at 19 months compared to B yearlings but B yearlings were affected more severely by overnutrition with reduced insulin sensitivity. The osteoarticular status at 24 months of age was not different between groups. CONCLUSION: In conclusion, nutritional management of the pregnant broodmare and the growing foal may affect sexual maturity of colts and the metabolism of foals until 24 months of age. These effects may be deleterious for reproductive and sportive performances in older horses.
Research center :
Centre Européen du cheval de Mont-le-Soie
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Robles, M;  Institut Scientifique de Recherche Agronomique - INRA
Gauthier, C;  Institut Scientifique de Recherche Agronomique - INRA
Mendoza García, Luis ;  Université de Liège > Dép. clinique des animaux de compagnie et des équidés (DCA) > Anesthésiologie gén. et pathologie chirurg. des grds animaux
Peugnet, P;  inra
Dubois, C;  ibra
Lejeune, Jean-Philippe ;  Université de Liège > Dép. clinique des animaux de compagnie et des équidés (DCA) > Pathologie médicale des petits animaux
Caudron, Isabelle ;  Université de Liège > Dép. clinique des animaux de compagnie et des équidés (DCA) > Dép. clinique des animaux de compagnie et des équidés (DCA)
Serteyn, Didier  ;  Université de Liège > Dép. clinique des animaux de compagnie et des équidés (DCA) > Anesthésiologie gén. et pathologie chirurg. des grds animaux
Chavatte, Pascale;  inra
Language :
English
Title :
Maternal Nutrition during Pregnancy Affects Testicular and Bone Development, Glucose Metabolism and Response to Overnutrition in Weaned Horses Up to Two Years.
Publication date :
2017
Journal title :
PLoS ONE
eISSN :
1932-6203
Publisher :
Public Library of Science, San Franscisco, United States - California
Volume :
12
Issue :
e0169295
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Région wallonne [BE]
Available on ORBi :
since 01 August 2017

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