• 한국임상수의학회지
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• 제40권5호
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• pp.341-348
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• 2023

An 11-year-old neutered male domestic short-haired cat presented with neurological symptoms that developed over a three-month period. These included mental dullness, vocalization, ataxia, and visual impairment. The patient was diagnosed with a primary intracranial tumor at a local animal hospital. After the first diagnosis, the cat was administered hydroxyurea, prednisolone, omeprazole, and gabapentin for 3 months. After the initiation of medical treatment, the patient's clinical symptoms did not improve and the size of the tumor was static on the second magnetic resonance imaging (MRI). The dosage of hydroxyurea and prednisolone was increased for two weeks. The patient's clinical signs improved, and subsequently, a craniotomy was performed. The clinical signs completely resolved six days after surgery. Adjuvant chemotherapy with hydroxyurea was continuously administered after the craniotomy. The patient demonstrated a good clinical status during the nine-month follow-up period. Neoadjuvant chemotherapy has not yet been reported for meningiomas in cats. Further clinical trials with longer follow-up periods and larger patient cohorts will be required to confirm the effectiveness of neoadjuvant chemotherapy with hydroxyurea in feline meningioma.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2012년도 추계학술발표대회
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• pp.1154-1157
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• 2012

축산농가의 경제성과 직결되는 암소 발정기의 조기 탐지는 IT 농 축산 학계에서도 매우 중요한 문제 중 하나이며 반듯이 해결해야만 하는 문제로 알려져 있다. 이를 해결하기 위한 다양한 연구 방법들 중, 본 논문에서는 소리 센서 환경에서의 암소의 발정기 탐지 시스템에 관한 연구를 대상으로 한다. 특히, 발정기 발성음의 특징 벡터 생성에 초점을 맞춘다. 특징은 크게 분별력과 차원이라는 두 가지 기준에 대해 우수해야 한다. 즉, 좋은 특징이란 서로 다른 부류를 잘 분별해 주어야 할 뿐만 아니라, 특징 벡터의 차원이 낮을수록 계산 효율이 좋고 차원의 저주에서 멀어 진다. 본 논문에서는 통계학에 기초한 체계적인 특징 벡터 생성에 관한 알고리즘을 제안하고, 실제 축사에서 녹취한 한우 발정기 발성음을 대상으로 낮은 차원의 특징 벡터 생성 과정을 보인다. 또한 이상상황 탐지기로 잘 알려진 단일 클래스 SVM의 대표 모델인 SVDD를 탐지기로 설정하여 생성된 특징 벡터의 분별력을 실험적으로 검증한다.

• 한국환경과학회지
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• 제31권2호
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• pp.131-139
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• 2022

This study aimed to evaluate the effects of four types of environmental enrichment on the improvement of companion dogs' behavioral problems due to separation anxiety. A total of 21 dogs of various breeds were included in the study. Data were collected to investigate the behaviors associated with anxiety in dogs, including vocalization, elimination, escape attempts, and destructiveness. A first stage, in which the dog and owner were together (P0), lasted 15 min, and a second stage, in which the dog and owner were separated (P1), lasted 15 min. After the dog and owner were separated (P1), the third stage (P2), during which the environment was enriched, lasted 20 min, and the fourth stage, following environment enrichment (P3), lasted 15 min. The results of the study indicated that compared to P0, the frequency of problematic behavior was highest during the 15 min following separation from the owner (P1). Following environmental enrichment, the average frequency of problematic behaviors in P2 decreased (P < 0.001) compared to P1. Environmental enrichment can also be used appropriately in the case of companion dogs, including shelter dogs or experimental dogs that use a limited kennel, and is a particularly effective means of improving the quality of life of dogs.

• 한국임상수의학회지
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• 제22권1호
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• pp.6-15
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• 2005

본 연구는 개에서 장문합술 후 비침습적인 행동관찰을 통해 통증을 평가하기 위하여 수행되었으며, 또한 이를 토대로 butorphanol의 진통효과에 대해 연구하였다. 본 실험에서 대조군은 마취를 실시하였으나 장문합술은 시행되지 않았다. 진통제 투여군의 5마리 개들에게는 장문합술을 실시하였고 butorphanol을 투여하였다. 진통제 비투여군의 5마리 개들에게는 진통제 투여 없이 장문합술을 실시하였다. 진통제 투여군의 개들은 수술 전 그리고 수술직후 butorphanol(0.4mg/kg, IM)이 투여되었고, 반면에 대조군과 진통제를 투여하지 않은 군에서는 동일한 양의 멸균 생리식염수가 투여되었다. 개의 행동은 마취 후 400분 동안 비디오테이프로 기록되었고, 그 시간에 실험자는 매 80분마다 개와 상호작용을 하였다. 각각의 상호작용에서, 실험자는 관찰된 행동을 바탕으로 멜버른 대학의 통증 측정방법을 이용하여 통증 점수를 기록하였다. 한 사람의 관찰자에 의해 정량화 된 상호작용과 비 상호작용의 행동을 측정하기 위하여 한 개체에 집중하는 연속적 표본 추출 방법이 적용되었다. 발성은 마취 후 400분 동안 녹음하였고 소리 길이, 소리 강도, 소리 pitch와 1-4 포먼트를 분석하였다. 외과수술은 통증측정 점수를 증가시켰다. 실험자와의 상호작용 중에서 수술 후 인사하는 행동이 감소되었다. 진통제를 투여한 수술군과 위약을 투여한 군사이의 차이점은 정량화된 행동측정과 발성을 통하여 구별할 수 있었다. Butorphanol을 투여한 수술군과 위약을 투여한 군 사이에는 유의적인 차이를 관찰할 수 있었다 (p< 0.05).

• Animal Bioscience
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• 제36권2호
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• pp.322-332
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• 2023

Objective: We determined the impact of maintaining pasture-based dairy cows and calves together over 100 days on cow milk production, cow and calf behavior, and calf liveweight and carcass quality. Methods: Six Holstein-Friesian cows and their male calves were monitored for 106±8.6 days. Cows were temporarily separated twice a day for milking with calves remaining in the paddock. Cow and calf behaviors were recorded via scan sampling at 6 different timepoints, for the first 7 days and twice a week thereafter. Calves were weighed weekly and immediately processed for meat quality and rumen development analysis at 106±8.6 days. Daily cow milk yields were collected from enrollment until 109±8.6 days (3 days post-weaning). Results: The average daily gain of calves was 1.4±0.73 kg/d, with an average carcass dressing percentage of 59%. Calves had the greatest frequency of observed close proximity to cow and suckling in the first two weeks and decreased with experiment duration. During separation for milking, cow vocalizations and attempts to return to their calf decreased over time. Reticulorumen weight was on target for calf age, but as a proportion of total stomach weight was lower than industry averages of calves the same age due to the larger abomasum. Cows produced an average of 12±7.6 kg of milk yield per day over the 3-days before the calves were weaned and increased to mean of 31±8.3 kg/d the 3 days after weaning, indicating a consumption of close to 20 kg per calf per day. Conclusion: The impact of a pasture-based cow-calf rearing system on cow and calf behavior and the potential for high levels of calf liveweight gain when provided ad-libitum milk and feed were determined. Further research is required to determine the practicality of replicating such systems with large herds and impact on reared calves post-weaning.

• Asian-Australasian Journal of Animal Sciences
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• 제29권7호
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• pp.1052-1059
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• 2016

Red light (RL) marked higher weight gain (WG) and preference of broilers compared to other light colors. This study aimed to investigate how different intensities of RL affect the performance, behavior and welfare of broilers. RL treatments were T1 = high intensity (320 lux), T2 = medium intensity (20 lux); T3 = dim intensity (5 lux), T4 = control/white light at (20 lux) provided on 20L:4D schedule and T5 = negative control; 12 hours dark: 12 hours day light. Cobb strain broilers were used in a Complete Randomize Design with 6 replicates. WG, water/feed intake, feed conversion ratio (FCR), mortality, behavior and welfare were assessed. At 35 d, significantly (p<0.05) highest body weight ($2,147.06g{\pm}99$) was recorded by T3. Lowest body weight ($1,640.55g{\pm}56$) and FCR (1.34) were recorded by T5. Skin weight was the only carcass parameter showed a significant (p<0.05) influence giving the highest (56.2 g) and the lowest (12.6 g) values for T5 and T1 respectively. Reduced welfare status indicated by significantly (p<0.05) higher foot pad lesions, hock burns and breast blisters was found under T3, due to reduced expression of behavior. Highest walking ($2.08%{\pm}1%$) was performed under T1 in the evening during 29 to 35 days. Highest dust bathing ($3.01%{\pm}2%$) was performed in the morning during 22 to 28 days and highest bird interaction (BI) ($4.87%{\pm}4%$) was observed in the evening by T5 during 14 to 21 days. Light $intensity{\times}day$ $session{\times}age$ interaction was significantly (p<0.05) affected walking, dust bathing and BI. Light intensity significantly (p<0.05) affected certain behaviors such as lying, eating, drinking, standing, walking, preening while lying, wing/leg stretching, sleeping, dozing, BI, vocalization, idling. In conclusion, birds essentially required provision of light in the night for better performance. Exposed to 5 lux contributed to higher WG, potentially indicating compromised welfare status. Further researches are suggested to investigate RL intensity based lighting regimen that favors for both production and welfare of Broilers.

• 생약학회지
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• 제2권1호
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• pp.23-28
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• 1971

This study was planned to see whether the Panax Ginseng root has any influence upon the emotionality in rats exposed to a novel open-field and induced by a grid shock. Sixty four male albino rats whose body weight ranged from 130 to 180 gm were used. They were divided into four groups, i.e., placebo control group, 5mg/kg Ginseng ext. group, 10mg/kg Ginseng ext. group, and 20mg/kg Ginseng ext. group. Sixteen rats were subjected in each group. Open-field activity was measured in a $2.20m\;{\times}\;2.20m$ open-field that was divided into 15cm squares. Four novel objects and food pellets were put with an equal distance in the open-field. Locomotion was recorded by entering the number of squares traversed for 4 min. and behaviors which were shown at the 10-sec. period were checked by a modified Jarrad and Bunnel's observation procedure. Sensitivity to the grid shock was measured in a compartment of shuttle box. 10, 20, 30, 40, 50, 60 and 70 volt ac. 2 sec., electric shock were delivered in each subject by the grid to animal's feet. Flinch, vocalization and jumping responses were rated in each shock level. The results obtained were as follows: 1.) 5mg/kg and 10mg/kg Ginseng ext. groups were tended to increase the ambulation and exploration compared with placebo control. 2.) All Ginseng extract groups were defecated significantly less often than placebo control in the open-field and shock situation. 3.) Thresholds to the electric shock were tended to elevate in all Ginseng groups. 4.) These results suggest that Ginseng extract has a stimulant action in open-field and a tranqulizing action in feared situation.