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1.
J Equine Vet Sci ; 112: 103895, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35151856

RESUMEN

The COVID-19 pandemic has increased the availability of virtual horse showing opportunities. The objectives of this study were to describe survey participants' personal characteristics and participation in virtual and in-person horse shows, level of satisfaction, attitude toward technology and motivation to participate, and internal and external factors influencing the decision to participate in virtual horse shows. A survey was distributed to a target audience of adult horse show participants and/or adults supporting youth horse show participants via Qualtrics (n = 251). A majority of respondents (91.2%) reported benefits to participating in virtual horse shows, and 59.8% plan to continue showing virtually when in-person shows resume. The opportunity to show virtually has resulted in 76.1% of respondents anticipating increasing their participation in showing (in-person or virtual). An improvement in attitude toward technology (M =1.6; SD = 0.4; Range = 1.0-2.3) and an increase in motivation to participate, ride and show (M = 1.4; SD = 0.4; Range = 1.0-2.8) was also reported. In addition, respondents indicated they were somewhat likely to be influenced to participate in virtual shows by internal factors such as their budget and ability to record the ride. External factors such as feedback from judges, available divisions, and awards were extremely likely to influence their decision to participate. In conclusion, virtual horse shows have provided a satisfactory outlet to keep people engaged in the industry. Additional research should be done to determine if the current popularity of virtual horse showing persists once in-person shows have fully resumed.


Asunto(s)
COVID-19 , Enfermedades de los Caballos , Animales , COVID-19/epidemiología , COVID-19/veterinaria , Caballos , Humanos , Motivación , Pandemias , Grupos de Población , Encuestas y Cuestionarios
2.
J Equine Vet Sci ; 106: 103734, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-34670703

RESUMEN

The COVID-19 pandemic affected the economic status of all sectors of the global economy including the horse show industry. Reporting the impact of COVID-19 on in-person horse shows and an early assessment of its impact on the economy was the objective of this study. A Qualtrics survey instrument was disseminated to horse show participants through social media pages and email (n = 251). A majority of respondents were females (95.6%) representing a cross-section of the United States (84.0%). Participants reported planning to attend an average of 9.7 (SD = 7.15) in-person horse shows in 2020 but were unable to attend an average of 4.17 (SD = 3.11) due to COVID-19 restrictions. Participants reported spending a mean of $991 (SD = $648.26) per show on horse show-related expenses, or $9,609 annually. The American Horse Council (2018) reported that 1,227,986 horses comprise the competition sector, with each horse owner showing 1.57 horses.  This participation generates $7.5B in expenses annually. The reduced attendance at in-person shows resulted in a decrease in annual expenditures, suggesting economic losses of $3.23 billion. The quantified direct effects were used in the IMPLAN input-output model to estimate the total economic impact. The reduced attendance resulted in a reduction of $7.2 billion, and a reduction of approximately 50,000 jobs within the horse show industry. Additionally, the industry's contribution to GDP (value added) was reduced by $3.95 billion. Early assessments of the economic impact associated with a reduction of in-person horse showing is vital to understanding the long-term implications for the industry.


Asunto(s)
COVID-19 , Enfermedades de los Caballos , Animales , COVID-19/veterinaria , Femenino , Gastos en Salud , Caballos , Industrias , Pandemias , SARS-CoV-2 , Estados Unidos
3.
J Invest Dermatol ; 141(11): 2639-2645.e3, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-34081968

RESUMEN

Similar to humans, the horse relies predominantly on the evaporation of sweat from the skin surface to dissipate excess body heat. Loss of the sweat response or anhidrosis can result in life-threatening hyperthermia. Anhidrosis occurs more frequently in some breeds as well as occurs at an increased frequency among individuals with a family history, suggesting a heritable component to the pathology. Given the natural occurrence and indications of genetic components in the etiology, we utilized genomics to better understand the molecular mechanisms involved in sweat response. We performed a case-control (n = 200) GWAS targeting cases of chronic idiopathic anhidrosis in a controlled genetic background to discover the contributing regions and interrogated gene function for roles in the sweating mechanism. A region containing the KCNE4 gene, which encodes the ß-subunit of a potassium channel protein with a possible function in sweat gland outflow, was associated (P = 1.13 × 10-07) with chronic idiopathic anhidrosis through GWAS. A candidate mutation (NC_009149.3:g.11813731A > G, rs68643109) disrupting the KCNE4 protein structure could explain the disease but requires further investigation in larger populations. We show the potential role of ion channels and cellular damage in sweat response, correlating anhidrosis as a possible effect of congenital channelopathy.


Asunto(s)
Hipohidrosis/genética , Canales de Potasio/fisiología , Animales , Enfermedad Crónica , Modelos Animales de Enfermedad , Femenino , Estudio de Asociación del Genoma Completo , Caballos , Hipohidrosis/etiología , Masculino , Subunidades de Proteína/fisiología
4.
J Equine Vet Sci ; 88: 102939, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-32303321

RESUMEN

Hereditary equine regional derma asthenia (HERDA), an autosomal-recessive trait, found in Quarter Horses, causes abnormal collagen structure. Owing to current breeding practices, 3.5% of registered quarter horses and 28.3% of the cow horse population are heterozygote carriers. Research demonstrated homozygote horses develop hyperextensible skin susceptible to injury and other abnormal tissues containing high fibrillar collagen content. No research exists determining the effects of the disease in heterozygote carriers. Currently, 30% of cutting sires are HERDA carriers, potentially increasing the number of heterozygous individuals when bred. The objective of the present study is to gauge knowledge of the disease, perception, and concerns of the diseases' impact on horse performance and perceived value and breeding decisions. A Qualtrics link was distributed to horse owners via extension specialists and was available online on equine-related Facebook pages. Overall group means and standard deviations for constructs were reported. A total of 228 responses were collected. Most participants were involved in reining and cutting and 34.6% reported they were very familiar with the disease. Participants (78.5%) reported that HERDA status affects value of a breeding animal. Owners of HERDA carriers (62.5%) noticed no difference in performance or injury compared with noncarriers. Respondents (95.2%) believed that all breeding animals should have HERDA status available. Respondents are attempting to make informed breeding decisions based on HERDA status by pairing carriers with noncarriers; however, it remains to be seen if that is adequate to control the disease. Education regarding breeding practices and its impact on the genetic pool are warranted.


Asunto(s)
Enfermedades de los Caballos , Anomalías Cutáneas , Animales , Astenia/veterinaria , Homocigoto , Enfermedades de los Caballos/genética , Caballos , Percepción , Anomalías Cutáneas/veterinaria
5.
J Equine Vet Sci ; 77: 114-120, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-31133303

RESUMEN

Five experiments were performed to test the hypothesis that α-melanocyte-stimulating hormone (MSH) is secreted in response to various stressors in horses similar to prolactin, growth hormone, and adrenocorticotropin (ACTH). There was considerable variation in resting concentrations of MSH and in the degree of stimulation in responders; thus all data sets were tested for heterogeneity of variance and corrected for as needed before analysis. In experiment 1, 12 mares were used in a switchback design to test the effect of a 2-minute exercise bout on MSH secretion. Plasma MSH concentrations were constant when mares were not exercised but increased (P < .05) immediately (2 minutes) after exercise and were still elevated 5 minutes later. In experiment 2, six mares were twitched for 2 minutes and six mares were not twitched. Twitching stimulated (P < .05) both MSH and ACTH relative to controls. Experiments 3, 4, and 5 tested the acute effects of intravenous injection of epinephrine at 5 µg/kg of body weight, intravenous injection of 100 µg substance P, and intramuscular injection of 10 mg prostaglandin-F2α in mares compared to controls (6, 5, and 6 mares per treatment group, respectively). Concentrations of MSH increased (P ≤ .05) after treatment in all three experiments. Plasma concentrations of ACTH also increased (P < .01) after administration of epinephrine and prostaglandin-F2α in experiments 3 and 5; plasma ACTH was not measured in experiment 1 or 4 because we have previously reported that exercise and substance P stimulate plasma ACTH concentrations. As hypothesized, MSH is secreted in response to various stimuli similar to that observed previously for prolactin, growth hormone, and ACTH.


Asunto(s)
Epinefrina , Sustancia P , Hormona Adrenocorticotrópica , Animales , Femenino , Hormona del Crecimiento , Caballos , Hormonas Estimuladoras de los Melanocitos
6.
J Appl Anim Welf Sci ; 22(4): 377-384, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30346214

RESUMEN

Due to the increased awareness of animal welfare issues and sensitized attitudes throughout society, youth animal projects provide a unique opportunity to assess and impact youth understanding and attitudes regarding animal welfare. Animal ethics training is not an uncommon requirement for participants in 4-H livestock programs. However, participants in 4-H horse projects are not universally held to the same standard. The purpose of this study was to assess youth knowledge, attitudes, and confidence in understanding of equine welfare at the 4-H state horse show, as well as to determine the beliefs and observations of unethical practices, and if differences exist between those parameters in youth competitors. The results suggest that 4-H competitors are interested in ethics and believe that unethical behavior rarely occurs within the state 4-H horse project. However, youth report observing common unethical behaviors at the show, suggesting a disconnect between what they believe is unethical and what they actually observe. Educational opportunities exist within these animal projects and should be enhanced to address the gap in understanding.


Asunto(s)
Crianza de Animales Domésticos/métodos , Bienestar del Animal/normas , Conocimientos, Actitudes y Práctica en Salud , Caballos , Adolescente , Crianza de Animales Domésticos/ética , Crianza de Animales Domésticos/normas , Animales , Niño , Femenino , Humanos , Louisiana , Masculino , Encuestas y Cuestionarios , Adulto Joven
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