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Effect of Chelated Chromium and L ‐carnitine on Subcutaneous Fat Deposition in the M angalarga M archador Breed after Training
Author(s) -
Barcelos K,
Jordão L,
Ferraz G,
Lana A,
Rezende A
Publication year - 2014
Publication title -
equine veterinary journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.82
H-Index - 87
eISSN - 2042-3306
pISSN - 0425-1644
DOI - 10.1111/evj.12267_93
Subject(s) - breed , zoology , loin , carnitine , completely randomized design , chemistry , chromium , medicine , biology , organic chemistry
The B razilian M angalarga M archador breed is valued for its gait. However few studies have assessed the use of nutritional additives on this breed's performance. This study was designed to test the hypothesis that chelated trivalent chromium and L ‐carnitine feed supplementation may reduce subcutaneous fat deposition after training. Methods 13 mares (2.5 to 3 years old) were assigned to one of three treatments ( T 1, 10 mg C r/day; T 2, 10 g LCN /day; T3, control) according to a completely randomized design, with split‐plot arrangement. The diet was Panicum maximum cv. Massai and concentrate (50:50 ratio and 2.5% BWT ). During 42 days the mares received supplementation and exercised for 50 min on a treadmill and 60 min on an automatic walker every other day, resting on Sundays. Subcutaneous fat was measured with ultrasound before and after training in the back‐loin( GDL ), croup( GG ), and base of the tail( GBC ). Results were compared by Tukey test (P<0.05). Results Before training, the variables were similar across the groups (P>0.05). After training, in GDL , T 2 (1.76 mm) was 37.37% lower (P<0.05) than control (2.81 mm), while T1 (2.22 mm) was similar to T 2 and control. There was no difference between treatments (P>0.05) in GG . In GBC , there was a 24.45% increase from pre (8.59 mm) to post‐treatment (10.69 mm) evaluations, regardless of the treatment. Conclusions Supplementation with L ‐carnitine reduces subcutaneous fat deposition in the lumbar region of M angalarga M archador mares after training, which may be indicative of increased use of subcutaneous fat in this region as a substrate for exercise. Ethical Animal Research Procedures were approved research by the U niversity (no. 237 / 2012 protocol). Sources of funding: CNPq , CAPES , FAPEMIG , ABCCMM , Lab TORTUGA , Haras Esperança e Grande Sertão. Competing interests: none.