• Journal of Veterinary Clinics
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• v.39 no.2
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• pp.65-69
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• 2022

A 5 day-old Warmblood foal was presented with a quarter crack due to the dam accidentally stepping on his left hind foot. Physical examination revealed the vertical crack included the coronary band of the medial side of the left hind hoof (quarter crack) with the lower pastern avulsion wound. Different from adult horses, the foot of the 5 day-old foal lacked adequate hoof wall thickness for stainless steel wire insertion and hoof size for a reinforcing fabric to be applied. Therefore, the authors decided to stabilize the edges of the cracked wall only by the polymethyl methacrylate (PMMA) composites without wiring and a reinforcing fabric application; and gluing a plastic shoe that was reshaped to protect the lower pastern and to spread pressure to other parts of the hoof when bearing weight. Disinfection and a supportive bandage were applied daily for 2 weeks. A month after the hoof crack accident, lameness had diminished. The quarter crack in this foal was treated successfully by the application of the composites three times with a reshaped gluing shoe, with approximately a month interval over the 4 months. After 4 months, it presented a successful functional recovery and needed no further treatment. When followed up 8 months after the accident, it revealed successful outcomes without hoof shape distortion and unbalanced hoof/limb growth.

• The Korean Journal of Ecology
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• v.28 no.5
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• pp.255-260
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• 2005

We investigated interventions by mother Jeju ponies on Jeju Island, Korea, to determine whether mothers assisted their offspring to attain higher status within the dominance hierarchy. Because dominance rank is important within each gender, we predicted that mothers would be more likely to intervene when their foals were play-fighting with foals of the same gender. A total of 173 play-fighting events were recorded from March to October 1998 and from April to October 1999. Of these, foals were more likely to play-fight with a foal of the same gender as with a foal of the opposite gender (120 versus 53 occurrences, respectively). A mother of one of the foals that were play-fighting intervened in 17 of these interactions. Contrary to the prediction, a mare was more likely to intervene when opposite genders interacted than when the same gender interacted. Analyzing interactions between the opposite genders further, mothers were equally likely to intervene when a daughter was play-fighting with a male foal as when a son was play-fighting with a female foal. Hence, mothers were not more protective of daughters than sons. Mothers that were in the younger age class ($2\sim11$ years old) were as likely to intervene as those in the elder age class ($17\sim25$ years old). However, all foals that were harassed were offspring of mothers in the younger, more subordinate age class. intervention directly maintains the dominance rank of the intervening mother, and may indirectly assist the intervening mother's foal to achieve a higher dominance rank. By discouraging their foals from play-fighting with the opposite genders, dominant mothers may be encouraging their foals to play-fight with the same gender and participate in establishing its own dominance rank.

• Journal of Veterinary Clinics
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• v.36 no.1
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• pp.88-92
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• 2019

A 6-month-old male thoroughbred foal with melting ulcer after left eye trauma was referred to Equine Hospital of Jeju National University. The left eye did not respond to the menace reflex test. Bacteria were not observed on corneal smear and culture test, and fluorescein staining revealed corneal injury. Subpalpebral Lavage (SPL) catheter was installed through the upper left eyelid. And the antibiotics, mydriatic and antifungal agents were administered using SPL. In addition, temporary tarsorrhaphy was performed and a hard cup hood was applied. After 2 weeks, the temporary tarsorrhaphy was removed and severe corneal neovascularization was found. On the 39th day of treatment, the left eye was responding to the menace reflex test and granular tissue formation was confirmed in the ulcer area. During the 2 months follow-up, we found that the granulation tissues decreased significantly. This case report describes a successful recovery of severe melting ulcers in a foal by intensive treatment.

• Korean Journal of Veterinary Research
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• v.45 no.4
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• pp.587-591
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• 2005

In this report, we described a case of acute colic with uterine rupture in a Thoroughbred broodmare during parturition. A 14-year-old broodmare showed acute colic characterized by rolling just after delivering of a healthy foal. Large intestine was prolapsed through vulva, contaminated with soil and its serosa was heavily damaged. We performed a euthanasia according to the owner's request. Post mortem examination revealed about 15 cm rupture on ventral side of the uterus. In addition, the orphan foal follow his owner after necropsy on his dam.

• Asian-Australasian Journal of Animal Sciences
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• v.25 no.12
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• pp.1775-1779
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• 2012

The aim of the present work was to investigate how colour changes of foal meat can vary after thawing out in relation to the slaughtering age of the horses and to the post-thawing time. Eighteen Italian Heavy Draught Horse (IHDH) foals were used for the trial. They were subdivided in three groups according to their slaughtering age (6, 11 and 18 months). Two different surfaces were investigated for each sample: a fresh cut surface (daily renewed cutting surface: DRCS), and not-renewed cutting surface (NRCS). The redness of both investigated surfaces increased with slaughtering age (p<0.01). Moreover, this parameter decreased during post-thawing time (p<0.01) only on the NRCS, probably due to the myoglobin oxidation processes. Colour is an important visual cue denoting perceived quality by consumers. So, by a chromatic perspective the thawed meat of IHDH foals slaughtered at 6 and 11 months proved to be that which best meets the market requirements.

• Korean Journal of Veterinary Research
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• v.51 no.1
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• pp.55-58
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• 2011

Two 4-day-old Thoroughbred foals with acute clinical signs of depression, elevated pulse and respiratory rates, anemia, and jaundice were referred to the equine hospital of Korea Racing Authority. The foals were seemingly normal at birth, but showed clinical signs such as abnormal behavior, jaundice and anemia suddenly after ingestion of the mare's colostrum, followed by death at 4 days after birth. According to the results of the hematology, serum chemistry analysis, jaundice foal agglutination test, and blood groups test, the foals were diagnosed as neonatal isoerythrolysis (NI) caused by the mare's antibodies. These results suggested that the pregnant mares have a potential for NI.

• Korean Journal of Veterinary Research
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• v.45 no.1
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• pp.127-130
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• 2005

The objective of present study was to ascertain sex determination for individual identification, parentage control, and sex chromosome anomalies in horse. PCR amplification products of the equine sex determining region of the Y chromosome gene (SRY) and amelogenin gene (AMEL) were detected by using agarose gel electrophoresis. A normal sire and foal II showed 1 SRY band (430 bp) and 3 AMEL (AMELX, AMELY, and AMELX/Y) band, 175 bp, 160 bp, 190 bp, respectively, and a normal dam and foal I showed a single AMELX band (175 bp). These results enables a quick diagnosis for sex determination prior to cytogenetic analysis.

• Journal of Veterinary Clinics
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• v.39 no.1
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• pp.28-31
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• 2022

A 5-week old Thoroughbred foal was presented with severe left carpal valgus. Radiographs of the dorsopalmar projections confirmed the deviation was 14 degrees. Surgery using a single-position screw traversing the physis of the distal radius was performed. The limb was almost straight (2 degrees) 3 weeks after surgery. Visual/radiograph follow-up 7 months after screw removal revealed no over-correction after removal of the screw. Transphyseal bridging using a single-position screw without lateral periosteal transection of distal radius was successful for the correction of foals with this condition.

• Journal of Veterinary Clinics
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• v.31 no.2
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• pp.159-162
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• 2014

A 4-month-old female thoroughbred foal was presented with large mass on mandibular gingiva. The enlarged mass was firm and yellowish pink in color, and occupied the whole mandibular arcade. The filly could not close her mouth with her lips. Radiographs showed radioopaque mass under the mandible. The mass was surgically excised from mandible. Histopathologically, gingival mass was characterized by hyperplastic gingival epithelium, well vascularized collagenous stroma and large area of bony tissues. Based on the gross and histopathologic findings, this case was diagnosed as ossifying epulis in the mandibular gingiva. This is the first report of ossifying epulis in a thoroughbred horse in Korea.

• Korean Journal of Veterinary Research
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• v.43 no.1
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• pp.25-29
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• 2003

This study was carried out to investigate a usefulness of the microsatellite DNA markers for parentage verification of Thoroughbred (TB) horses. 9 TB horses samples were genotyped for nine international minimum standard markers (AHT4, 5, ASB2, HMS3, 6, 7, HTG4, 10, and VHL20), and the additional panel of four markers, ASB17, CA425, LEX33, and TKY321. This methods consisted of multiplexing PCR procedures, and it showed reasonable amplification of all PCR products. Genotyping was performed with an ABI 310 genetic analyzer. Foal I was excluded according to principles of Mendelian genetics in AHT4 (H/K), ASB2 (Q/Q), HMS3 (I/P), HTG4 (M/O), HTG1O (K/R), VHL20 (M/P), ASB17 (F/N), LEX33 (M/O), and TKY321 (G/I) markets. Foal II was excluded with markers AHT5 (K/M), ASB2 (M/N), HMS7 (N/N), HTG1O (K/K), VHL20 (I/I), ASB17 (F/F) and TKY321 (G/I). Foal III was excluded with markers AHT4 (O/O), AHT5 (K/K), ASB2 (M/R), HMS6 (M/P), HMS7 (O/O), HTG10 (R/S), VHL20 (L/M), and ASB17 (N/O). These results suggest that the present DNA typing is so useful for parentage verification of TB horses.