1
|
Herbst AC, Coleman MC, Macon EL, Brokman A, Stromberg AJ, Harris PA, Adams AA. Retirement risk factors, exercise management and muscle mass in US senior horses. Equine Vet J 2024; 56:522-534. [PMID: 37341387 DOI: 10.1111/evj.13958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 05/05/2023] [Indexed: 06/22/2023]
Abstract
BACKGROUND Information on the management and health of US senior horses (≥15 years of age) is currently limited. OBJECTIVES Provide information on (1) primary use of US senior horses, (2) reasons and risk factors for horse retirement, (3) exercise management, (4) prevalence of low muscle mass and (5) risk factors for, and owner-perceived consequences of, low muscle mass. STUDY DESIGN Online survey. METHODS Survey responses from 2717 owners of U.S.-resident senior horses (≥15 years of age) were analysed descriptively and inferentially, using ordered and binomial logistic regression, ANOVA and the Kruskal-Wallis test. RESULTS The most frequently reported primary uses were pleasure riding/driving (38.5%) and full retirement (39.8%). Most horses (61.5%) were retired between 15 and 24 years of age, with health problems being the main reason. Age, female sex, Thoroughbred breed and various medical conditions were identified as risk factors for retirement. In working horses (i.e., those not retired or semi-retired), exercise intensity was negatively associated with age. The owner-reported prevalence of low muscle mass in all horses was 17.2% (95%CI = 15.7-18.7). In those affected by low muscle mass, the ability to work and welfare-related aspects were commonly perceived to be impaired. Increasing age, sex (gelding), pituitary pars intermedia dysfunction, osteoarthritis, laminitis and primary use (retired and semi-retired vs. use for competition) were identified as risk factors for owner-reported low muscle mass. MAIN LIMITATIONS Potential response, recall and sampling bias. Causal relationships cannot be established. CONCLUSIONS Although structured exercise into old age may provide health benefits (as seen in elderly people), a large proportion of horses were fully retired in the current study. Senior horses were mainly retired for health problems and characterising these problems may aid in extending their work/active life. Low muscle mass was perceived to affect horses' welfare and ability to work, and identification of prevention and treatment strategies is therefore warranted.
Collapse
Affiliation(s)
- Alisa C Herbst
- M. H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, Kentucky, USA
| | - Michelle C Coleman
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Erica L Macon
- M. H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, Kentucky, USA
| | - Aviv Brokman
- Department of Statistics, University of Kentucky, Lexington, Kentucky, USA
| | - Arnold J Stromberg
- Department of Statistics, University of Kentucky, Lexington, Kentucky, USA
| | - Pat A Harris
- Equine Studies Group, Waltham Petcare Science Institute, Leicestershire, UK
| | - Amanda A Adams
- MARS EQUESTRIAN™ Research Fellow, M. H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, Kentucky, USA
| |
Collapse
|
2
|
Purnama MTE, Hendrawan D, Wicaksono AP, Fikri F, Purnomo A, Chhetri S. Risk factors, hematological and biochemical profile associated with colic in Delman horses in Gresik, Indonesia. F1000Res 2022; 10:950. [PMID: 35136578 PMCID: PMC8787563 DOI: 10.12688/f1000research.55312.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/07/2022] [Indexed: 11/20/2022] Open
Abstract
Background: Horses are herd animals that have been domesticated in the last century. In several countries, an overview of risk factors and clinical evaluation in horses with colic has not been well‐described. This study aimed to evaluate risk factors and hematological profiles in horses associated with colic in Gresik, East Java, Indonesia. Methods: A cross-sectional study was performed during April - October 2019. A total of 115 horses were diagnosed based on physical examination, clinical symptoms, and rectal examination. A questionnaire was asked to the horse-owners to analyze the risk factors while the clinical examination was performed and blood samples were collected for pre-treatment and 14 days post-treatment. Hematological profile was evaluated from a whole blood sample. Serum cortisol, plasma epinephrine, and norepinephrine concentrations were also evaluated after separating the aliquots. Results: Of the 115 horses, 96 were diagnosed with colic. The horses with colic showed a significant association between cases with gender (p<0.021), breed (p<0.000), wheat bran feeding (p<0.015), concentrate feeding (p<0.003), anthelmintics administration (p<0.000), gastrointestinal parasites (p<0.000), dental diseases (p<0.024), previous exposure to colic (p<0.000), body condition score (p<0.000), and access to water per day (p<0.000). Based on whole blood and serum evaluation, there were ameliorated significantly on the hematological profile (p<0.01), serum cortisol (p<0.05), and plasma epinephrine (p<0.01) at 14 days post-treatment. Conclusion: This study has identified factors associated with colic in Delman horses. The study provides crucial information to investigate cases of colic and to contribute the development of healthcare strategies during treatment and clinical evaluation.
Collapse
Affiliation(s)
- Muhammad Thohawi Elziyad Purnama
- Division of Veterinary Anatomy, Department of Veterinary Science, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, East Java, 60115, Indonesia
| | - Dodit Hendrawan
- Animal Health Division, Indonesian Horse Veterinarian Association, Surabaya, East Java, 60115, Indonesia
| | - Arya Pradana Wicaksono
- Animal Health Division, Indonesian Horse Veterinarian Association, Surabaya, East Java, 60115, Indonesia
| | - Faisal Fikri
- Division of Veterinary Physiology, Department of Veterinary Science, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, East Java, 60115, Indonesia
| | - Agus Purnomo
- Department of Veterinary Surgery and Radiology, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Yogyakarta, 55281, Indonesia
| | - Shekhar Chhetri
- Department of Animal Science, College of Natural Resources, Royal University of Bhutan, Lobesa, Punakha, 13001, Bhutan
| |
Collapse
|
3
|
Ferlazzo A, Cravana C, Fazio E, Medica P. The different hormonal system during exercise stress coping in horses. Vet World 2020; 13:847-859. [PMID: 32636578 PMCID: PMC7311877 DOI: 10.14202/vetworld.2020.847-859] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 04/03/2020] [Indexed: 12/19/2022] Open
Abstract
The review discusses the hormonal changes during exercise stress. The exercise generally produces a rise of adrenaline (A), noradrenaline (NA), adrenocorticotropic hormone (ACTH), cortisol, glucagon, growth hormone, arginine vasopressine, etc., and a drop of insulin. The hormonal events during reestablishment of homeostasis due to exercise stress can be divided into a catabolic phase, with decreased tolerance of effort, and reversible biochemical, hormonal and immunological changes, and an anabolic phase, with a higher adaptive capacity, and enhanced performance. The two main hormonal axes activated in the catabolic phase are sympathetic–adrenal–medullary system and hypothalamic-pituitary-adrenal (HPA) axis, while in the anabolic phase, growth hormone-insulin-like factor I axis, and gonadal axes. The hormonal responses during exercise and recovery can be regarded as regulatory and integrated endocrine responses. The increase of catecholamines and ACTH is dependent on the intensity of exercise; a marked increase in plasma A occurs during exercises with high emotional content. The response of cortisol is correlated with the duration of exercise, while the effect of exercise duration on b-endorphin changes is highly dependent on the type of exercise performed. Cortisol and b-endorphin changes usually occur in phase, but not during exercises with high emotional content. Glucocorticoids and iodothyronines are involved in meeting immediate energy demands, and a model of functional interactions between HPA axis and hypothalamic-pituitary-thyroid axis during exercise stress is proposed. A modulation of coping responses to different energy demanding physical activities required for sport activities could be hypothesized. This review supports the proposed regulation of hypophysiotropic TRHergic neurons as metabolic integrators during exercise stress. Many hormonal systems (ghrelin, leptin, glucose, insulin, and cortisol) are activated to control substrate mobilizations and utilization. The cardiovascular homeostasis, the fluid and electrolyte balance during exercise are highly dependent on vasoactive hormones (antidiuretic hormone, atrial natriuretic peptide, renin–angiotensin–aldosterone, and prostaglandins) control.
Collapse
Affiliation(s)
- Adriana Ferlazzo
- Department of Veterinary Sciences, Unit of Veterinary Physiology, Polo Universitario Annunziata, Messina University, 98168 Messina, Italy
| | - Cristina Cravana
- Department of Veterinary Sciences, Unit of Veterinary Physiology, Polo Universitario Annunziata, Messina University, 98168 Messina, Italy
| | - Esterina Fazio
- Department of Veterinary Sciences, Unit of Veterinary Physiology, Polo Universitario Annunziata, Messina University, 98168 Messina, Italy
| | - Pietro Medica
- Department of Veterinary Sciences, Unit of Veterinary Physiology, Polo Universitario Annunziata, Messina University, 98168 Messina, Italy
| |
Collapse
|
4
|
Gehlen H, Bildheim LM. Evaluation of age-dependent changes of myocardial velocity using pulsed wave and colour tissue Doppler imaging in adult warmblood horses. J Anim Physiol Anim Nutr (Berl) 2018; 102:1731-1742. [DOI: 10.1111/jpn.12962] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 06/21/2018] [Accepted: 06/25/2018] [Indexed: 01/05/2023]
Affiliation(s)
- Heidrun Gehlen
- Equine Clinic; Free University of Berlin; Berlin Germany
| | | |
Collapse
|
5
|
Ferlazzo A, Cravana C, Fazio E, Medica P. Is There an Interplay Between the Hypothalamus-Pituitary-Thyroid and the Hypothalamus-Pituitary-Adrenal Axes During Exercise-Stress Coping in Horses? J Equine Vet Sci 2018. [DOI: 10.1016/j.jevs.2017.08.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
6
|
|
7
|
Li C, White SH, Warren LK, Wohlgemuth SE. Effects of aging on mitochondrial function in skeletal muscle of American American Quarter Horses. J Appl Physiol (1985) 2016; 121:299-311. [PMID: 27283918 PMCID: PMC5040552 DOI: 10.1152/japplphysiol.01077.2015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 06/08/2016] [Indexed: 02/07/2023] Open
Abstract
Skeletal muscle function, aerobic capacity, and mitochondrial (Mt) function have been found to decline with age in humans and rodents. However, not much is known about age-related changes in Mt function in equine skeletal muscle. Here, we compared fiber-type composition and Mt function in gluteus medius and triceps brachii muscle between young (age 1.8 ± 0.1 yr, n = 24) and aged (age 17-25 yr, n = 10) American Quarter Horses. The percentage of myosin heavy chain (MHC) IIX was lower in aged compared with young muscles (gluteus, P = 0.092; triceps, P = 0.012), while the percentages of MHC I (gluteus; P < 0.001) and MHC IIA (triceps; P = 0.023) were increased. Mass-specific Mt density, indicated by citrate synthase activity, was unaffected by age in gluteus, but decreased in aged triceps (P = 0.023). Cytochrome-c oxidase (COX) activity per milligram tissue and per Mt unit decreased with age in gluteus (P < 0.001 for both) and triceps (P < 0.001 and P = 0.003, respectively). Activity of 3-hydroxyacyl-CoA dehydrogenase per milligram tissue was unaffected by age, but increased per Mt unit in aged gluteus and triceps (P = 0.023 and P < 0.001, respectively). Mt respiration of permeabilized muscle fibers per milligram tissue was unaffected by age in both muscles. Main effects of age appeared when respiration was normalized to Mt content, with increases in LEAK, oxidative phosphorylation capacity, and electron transport system capacity (P = 0.038, P = 0.045, and P = 0.007, respectively), independent of muscle. In conclusion, equine skeletal muscle aging was accompanied by a shift in fiber-type composition, decrease in Mt density and COX activity, but preserved Mt respiratory function.
Collapse
Affiliation(s)
- Chengcheng Li
- Department of Animal Sciences, University of Florida, Gainesville, Florida
| | - Sarah H White
- Department of Animal Sciences, University of Florida, Gainesville, Florida
| | - Lori K Warren
- Department of Animal Sciences, University of Florida, Gainesville, Florida
| | | |
Collapse
|
8
|
Spelta CW, Axon JE. Case series of equine pituitary pars intermedia dysfunction in a tropical climate. Aust Vet J 2012; 90:451-6. [DOI: 10.1111/j.1751-0813.2012.00997.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2012] [Indexed: 11/30/2022]
Affiliation(s)
- CW Spelta
- Townsville Vet Clinic; 32-34 Anne St; Aitkenvale; Queensland; 4814; Australia
| | - JE Axon
- Scone Equine Hospital; Scone; New South Wales; Australia
| |
Collapse
|
9
|
Hormonal responses of Quarter Horses to a 6-week conventional Western-riding training programme. Livest Sci 2011. [DOI: 10.1016/j.livsci.2011.04.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
10
|
|
11
|
McGowan TW, Pinchbeck G, Phillips CJC, Perkins N, Hodgson DR, McGowan CM. A survey of aged horses in Queensland, Australia. Part 1: management and preventive health care. Aust Vet J 2010; 88:420-7. [DOI: 10.1111/j.1751-0813.2010.00637.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
12
|
|