"Horses" is a broad topic that encompasses various aspects of equine biology, behavior, and management. This category includes studies on the anatomy, physiology, and genetics of horses, as well as their behavior, nutrition, and care. Research in this area may also cover the historical and cultural significance of horses, their roles in agriculture, sport, and therapy, and the challenges associated with their conservation and welfare. The page aggregates peer-reviewed research articles and scholarly studies that explore the multifaceted relationships between humans and horses, examining both scientific and socio-economic perspectives.
Two closed horse herds (Old Lot 4 and Field 24), infected since 1966 with Population B small strongyles resistant to thiabendazole (TBZ) and phenothiazine (PTZ), were terminated in February, March, and May, 2005. At necropsy, only the large endoparasites were identified and counted. The number of horses on pasture was 14 (239 days of age to 23 years old) for Old Lot 4 and two (3 to 20 years old) for Field 24. The time of the last antiparasitic treatment, relative to the year (2005) of necropsy, was 26 years for Old Lot 4 and 9 years for Field 24 horses. Gasterophilus intestinalis third instars...
The objective of this study was to compare effects of butorphanol (BUT) or buprenorphine (BUP), in combination with detomidine and diazepam, on the sedation quality, surgical conditions, and postoperative pain control after cheek tooth extraction in horses, randomly allocated to 2 treatment groups (BUT: = 20; BUP: = 20). A bolus of detomidine (15 μg/kg, IV) was followed by either BUP (7.5 μg/kg, IV) or BUT (0.05 mg/kg, IV). After 20 min, diazepam (0.01 mg/kg, IV) was administered and sedation was maintained with a detomidine IV infusion (20 μg/kg/h), with rate adjusted based on scores to ...
Fifteen horses harboring naturally acquired, patent Parascaris equorum and Oxyuris equi infections were equally allotted to 3 treatment groups given (1) injectable vehicle; (2) injectable ivermectin at the dose rate of 200 microgram/kg of body weight; and (3) injectable ivermectin at the rate of 300 microgram/kg. All treatments were given IM in the neck. All animals were killed 14 days after treatment and examined for the targeted nematodes. Regardless of dose rate, ivermectin proved 100% effective in the removal of adult O equi and P equorum infections. Levels of immature P equorum were decre...
Faria LG, Zutter BM, Freitas-Dell'Aqua CP, Camillo BL, Ávila-Júnior OS, Bassetti FS, Marcolino LC, Alvarenga MA.To evaluate the effects of therapeutic and supratherapeutic periovulatory doses of firocoxib on ovulation and follicular dynamics in mares. Methods: Seventy cycling mares were randomly assigned to receive firocoxib at 0.1 mg/kg (n = 27), firocoxib at 0.3 mg/kg (n = 22), or no treatment (control; n = 21). Treatments were initiated on Day 0, defined as the day of ovulation induction with a GnRH analogue administered intramuscularly, with firocoxib administered intravenously on Day 0 and Day 1 (24 h apart). Follicular diameter and ovulation timing were assessed by transrectal ultrasonography. Res...
Hernashki H, Samimi AS, Imani M, Oloumi MM.Prepubic tendon rupture (PPTR) is a rare but life-threatening complication in late-term pregnant mares. It results in abdominal wall failure, ventral oedema and a poor prognosis for both the mare and foetus. A 14-year-old multiparous Kurdish mare at approximately 310 days of gestation presented with acute ventral distension, reluctance to walk and cranial displacement of the udder. Clinical evaluation revealed tachycardia, pallor and Grade 3/4 ventral oedema. Haematology indicated leucocytosis and haemoconcentration. Transabdominal ultrasonography showed a viable foetus and severe thinning of ...
Secor EJ, Chow EN, Thomas M, Johnson L, Siefert A, Wagner B, Engiles JB, Reesink HL.There is emerging evidence for the role of the immune system in osteoarthritis (OA) pathophysiology; however, little is known about how immune cells and the synovial transcriptome are altered in naturally occurring equine OA. Objective: To evaluate synovial fluid (SF) and synovial membrane (SM) immune cell populations and the SM transcriptome in racehorses with fetlock OA. Methods: Cross-sectional cadaver study. Methods: Fetlock joints from racehorses euthanised at NY racetracks were considered for inclusion. SF and SM were analysed by flow cytometry using T-cell (CD3, CD4, CD8) and macrophage...
Junge HK, Williams Louie EG, Mitchell KJ, Schwarzwald CC.Sustained ventricular arrhythmias (VAs) in horses can require medical intervention. Prompt pharmacological treatment is indicated when the arrhythmia leads to hemodynamic or electrical instability. Established antiarrhythmic treatment of VA in horses includes lidocaine and magnesium, administered parenterally. Other antiarrhythmic agents are used; however, concerns regarding adverse effects, financial restrictions, logistics of administration, and lack of access often limit their use. While anecdotal reports of oral administration of sotalol for treatment of VA in horses exist, sotalol has pri...
