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Effects Of Dietary Supplementation Of Conjugated Linoleic Acid In Horses, Shannon Headley Dec 2011

Effects Of Dietary Supplementation Of Conjugated Linoleic Acid In Horses, Shannon Headley

All Theses

Conjugated linoleic acid (CLA) reduces inflammation via the inhibition of cyclooxygenase II , thus reducing prostaglandin E2 (PGE2) production. Conjugated linoleic acid has a suggested osteoclast-suppressive role in bone remodeling and osteoarthritis, which are dependent on bone resorptive stimulator PGE2. Bone resorption marker, deoxypyridinoline (DPD), and bone formation marker, bone alkaline phosphatase (BAP), have been modulated by CLA supplementation in other species. Recent research in equine exercise physiology investigated dietary supplementation of polyunsaturated fatty acids as a possible prevention and treatment for osteoarthritis, but CLA supplementation has putative effects on skeletal function or inflammation in horses has not been reported. …


Factors Affecting Skeletal Muscle Protein Synthesis In The Horse, Ashley Leigh Wagner Jan 2011

Factors Affecting Skeletal Muscle Protein Synthesis In The Horse, Ashley Leigh Wagner

Theses and Dissertations--Animal and Food Sciences

Skeletal muscle protein synthesis is regulated by the mammalian target of rapamycin (mTOR) signaling pathway. The first objective was to optimize the methodological procedures for assessing mTOR signaling in horses. The response of mTOR signaling (P-Akt Ser473, P-S6K1 Thr389, P-rpS6 Ser235/26 & 240/244, and P-4EBP1 Thr37/46 by Western blotting techniques) to meal consumption was determined at three gluteal muscle biopsy depths (6, 8, and 10 cm), and the repeatability of the contralateral side at 8 cm during 5 days of repeated biopsies. There was no effect (P > 0.05) of sampling side or biopsy …


Development And Permeability Of Equine Blastocysts, Brittany Reshel Scott Jan 2011

Development And Permeability Of Equine Blastocysts, Brittany Reshel Scott

LSU Master's Theses

Equine embryo cryopreservation is unsuccessful in larger, more easily collected, day-7 embryos. It is imperative that methods to successfully cryopreserve large equine embryos or develop reliable methods to determine embryo size before collection. Therefore the objectives for this study were to quantify the amount of tritiated glycerol that would permeate various sizes of equine embryos and to determine if circulating progesterone concentration was correlated with in utero embryo size. Mean embryo diameter (± SEM) across treatments (1.4M and 3.4M tritiated glycerol) was 696.5µm ± 108.6µm and 925.9 µm ± 214.1µm, respectively and were not different (P=0.44). The percent permeation for …