• 한국가금학회지
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• 제47권4호
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• pp.199-210
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• 2020

발바닥 피부염은 발바닥 표면에 생기는 상처로 세계 가금산업에서 더욱 중요한 문제가 되고 있다. 발바닥 피부염은 닭의 복지뿐만 아니라, 닭발의 품질과 생산성에도 영향을 미치기 때문이다. 아시아 먹거리 시장에서 닭발에 대한 소비자 수요가 증가함에 따라 발바닥 피부염을 줄이기 위한 방법을 찾는 양계업체의 관심이 증가하고 있다. 발바닥 피부염은 깔짚 수분함량에 직접적인 영향을 받아 생기는 것으로 영양, 급수기 형태 및 관리, 환경 상태(온도, 상대습도, 암모니아 수준, 환기량 등), 계군의 건강 등 다양한 요인들이 복합적으로 연관되어 있다. 따라서, 본 논문에서는 발바닥 피부염의 특징, 생성 원인, 발바닥 피부염 평가시스템, 최근 연구 등 발바닥 피부염에 대한 전반적인 사항을 다루고, 이를 통해 발바닥 피부염에 대한 이해와 향후 연구 수립에 도움을 주는 기초 자료로써 활용하고자 한다.

• 한국환경복원기술학회지
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• 제17권6호
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• pp.73-91
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• 2014

Recently the countries breeding bears such as China and Vietnam are promoting a policy that gives relief to wild animals through agreement with AAF and WSPA. Currently our country has lacking breeding space for the increased number of bred bears due to the prohibition of bear import and export from joining the CITES in 1992. There needs to be a place that treats, protects accepts breed bears in the terms of animal welfare. The bear park was hoped to be designed as a means to give relief to bears and promote harmony with the local society, and is made of parking area, waiting area, visitors center, treatment research management facilities, restaurants, food warehouse, food store, bear museum, sanitation facilities, gondola, plaza, rehabilitation area for wild animals, outdoor exhibition center, direct indirect experience area of wild animals, resting facilities and areas, photo zones, bear playground, bear experiencing facilities, fences, information facilities, tree protection facilities and more. The design can be used as a reference in examining alternative measures following the future change in breeding policy as a bear park example which reflected the ecology of a bear in the term of animal welfare.

• 한국가금학회지
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• 제46권4호
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• pp.271-277
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• 2019

최근 산업동물에서도 동물복지의 관심이 높아짐에 따라 복지 사육방식을 채택한 농가의 수가 늘어나고 있다. 본 연구는 복지농장과 일반농장 간의 병원체 탐색 및 조류인플루엔자 방어율의 차이를 확인하고자 하였다. 복지농장 사육 육계와 산란계, 일반농장 사육 육계와 산란계에서 얻어진 샘플들을 이용하여 비교한 결과, 마이코플라즈마 검출에서는 사육형태간 차이를 확인할 수 없었으며, 저병원성 인플루엔자의 배출량도 초기를 제외하고는 차이를 확인할 수 없었다. 앞으로 국내에서 사육방식의 차이에 따른 지속적인 연구가 필요하다.

• Journal of Veterinary Science
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• 제23권4호
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• pp.59.1-59.5
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• 2022

Korean Institutional Animal Care and Use Committee (IACUC) is currently facing some operational pressing issues. 1) Review of the animal protocol containing controversial technology. 2) Review of the multi-institution animal protocol. 3) Review of veterinary clinical trials for client-owned animals. 4) Delay in the review process in large institutions with a single IACUC. Here, the following three solutions are proposed to address the above issues. 1) Establishment of public IACUC. 2) Establishment of the Veterinary Clinical Study Committee as an advisory body to the IACUC. 3) Operating multiple committees rather than increasing the number of committee members on a single committee.

• 한국가금학회지
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• 제45권4호
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• pp.261-272
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• 2018

본 연구는 일반농장과 복지형 농장의 육계 다리육의 냉장저장 기간 중 품질과 생리활성 기능 성분을 비교 분석하기 위해 실시하였다. 일반농장 및 동물복지 농장의 육계 다리육을 발골하여 9일 동안 $4{\pm}1^{\circ}C$에서 저장하면서 품질평가, creatine, di-peptide(anserine 및 carnosine), SOD 활성, DPPH 라디칼 소거능을 분석하였다. pH 값은 저장 1일차에 CTW 처리구가 CTC 처리구보다 유의적으로 높았으며, $b^*$ 값은 CTW 처리구가 CTC 처리구보다 유의적으로 높은 값을 나타내었다. 가열감량, 보수력, $L^*$, $a^*$ 및 대장균수는 두 처리구간의 유의적인 차이를 보이지 않았다. 전단력의 경우 저장 1일차, 3일차, 7일차, 9일차에 CTW 처리구가 CTC 처리구보다 유의적으로 높은 수치를 나타내었다. 일반세균수의 경우, 두 처리구 모두 저장 기간이 증가함에 따라 증가하였으나, 저장 7일차, 9일차에 CTW 처리구(5.83 log CFU/g, 6.70 log CFU/g)가 CTC 처리구(6.12 log CFU/g, 7.16 log CFU/g)보다 유의적으로 낮은 일반 세균수를 나타내었다. TBARS 값은 저장 7일차까지 두 처리구간의 유의적인 차이는 없었으나, 저장 9일차에 CTW 처리구(0.56 mg MDA/kg)가 CTC 처리구(0.64 mg MDA/kg)보다 유의적으로 낮은 값을 나타내었다. 단백질 변패도를 나타내는 VBN은 모든 저장일차에서 CTW 처리구가 CTC 처리구보다 유의적으로 낮은 수치를 나타내었다. Creatine과 carnosine 함량은 두 처리구간 유의적인 차이는 없었으나, anserine은 저장 1일차에만 CTW 처리구가 CTC 처리보다 높은 함량을 나타내었다. DPPH 라디칼 소거능은 저장 1일차에 CTW 처리구가 CTC 처리구보다 유의적으로 높아 항산화 활성을 보였다.

• Asian-Australasian Journal of Animal Sciences
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• 제17권2호
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• pp.283-300
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• 2004

Currently commercial dry sows are housed in individual stalls and subject to restricted feeding. These sows often show stereotypic behaviours which increase their maintenance energy requirement. Group housing is desirable to improve animal welfare and public perception. However, under restricted feeding systems, group-housed dry sows are also aggressive. The feed intake of these sows is variable, depending on their social rank, which results in different milk production and variable piglet performance. These problems can be solved by ad libitum feeding systems, but the large capacity of intake by dry sows will not allow this feeding system to be practical as high feeding level during pregnancy can reduce reproduction performance of sows. Current research indicates that feeding high fibre diets to dry sows enables sows to be fed ad libitum, but the effect of dietary fibre on feed intake and nutrient utilisation is dependent on the quality of fibre sources. Most research has focused on sugar beet pulp, straw, lucerne meal and by-products, but there is a need to identify and evaluate some widely available and cheap fibre materials and feed grains for developing the best strategy to control nutrient intake of dry sows while feeding ad libitum.

• Asian-Australasian Journal of Animal Sciences
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• 제32권8_spc호
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• pp.1244-1255
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• 2019

Dairy goat production continues to be a socially, economically and culturally important part of the livestock industry in North, Central and South America and the Caribbean islands. Goat milk, cheese and other dairy products offer consumers food products with nutritional, health and environmental benefits. In North America, Mexico produces the greatest volume of goat milk, but most is for family or local consumption that is typical of a mixed farming system adopted by subsistence farmers in dry areas. The United States is not yet a large global goat milk producer, but the sector has expanded rapidly, with dairy goat numbers doubling between 1997 and 2012. The number of dairy goats has also increased dramatically in Canada. Commercial farms are increasingly important, driven by rising demand for good quality and locally sourced goat cheese. In South America, Brazil has the most developed dairy goat industry that includes government assistance to small-scale producers and low-income households. As of 2017, FAO identified Haiti, Peru, Jamaica, and Bolivia as having important goat milk production in the Western Hemisphere. For subsistence goat producers in the Americas on marginal land without prior history of chemical usage, organic dairy goat production can be a viable alternative for income generation, with sufficient transportation, sanitation and marketing initiatives. Production efficiency, greenhouse gas emission, waste disposal, and animal welfare are important challenges for dairy goat producers in the Americas.

• 농업과학연구
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• 제49권4호
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• pp.927-936
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• 2022

The effects of seasonal differences and crating densities on the preslaughter losses, breast meat quality, and physiological indices of broilers were determined. A total of 600 broilers aged 35 days were divided into 10 treatment groups based on five crating densities (10.3, 11.5, 12.8, 14.1, 15.4 birds·m^-2) with two seasons (i.e., summer and winter) to give six replicates and were placed at various locations in the truck. The birds were transported in crates having dimensions of 1.0 m × 0.78 m × 0.26 m. The transportation distance was 20 km for 40 minutes (average 30 - 50 km·h^-1) during the early morning. The results revealed that broilers transported at densities of 14.1 and 15.4 birds·m^-2 recorded lower (p < 0.05) pH, water-holding capacity (WHC), and muscle redness compared to those at densities of 11.5 birds·m^-2. Furthermore, higher (p < 0.05) cooking loss was found in birds stocked at more than 14.1 birds·m^-2 compared to the other treatments. However, no effect (p > 0.05) with different crating densities on body weight loss, carcass traits, glucose, lactate, or muscle yellowness was observed. Crating density of 14.1 birds·m^-2 showed lower (p < 0.05) cortisol contents compared with birds at 10.3 and 15.4 birds·m^-2. Winter transportation had higher (p < 0.05) relative breast meat weight, cooking loss, muscle redness, and cortisol contents whereas summer transportation had higher (p < 0.05) glucose and lactate contents in the blood plasma of broilers. In conclusion, the stocking of 12.8 birds·m^-2 is recommended to minimize stress responses and undesirable changes that could negatively affect muscle quality.

• 농업과학연구
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• 제50권4호
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• pp.861-867
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• 2023

Lairages serve several functions, such as providing post-mortal inspections and providing a reservoir of animals to ensure the slaughter line runs efficiently. High stress lairage conditions can contribute to the accumulation of transport stress in pigs, causing poor pork quality and still stressed pigs at slaughter. The objective of this study was to investigate meat quality, blood profile and behavior changes according to lairage stocking density in in high temperature. Density treatments were as follows: LD, low density (lower than 0.5 m²/100 kg); ND, normal density (0.5 m²/100 kg to 0.83 m²/100 kg); HD, high density (higher than 0.83 m²/100 kg). Air temperature treatment was as follows: HT, high temperature (higher than 24℃). Pigs stocked with LD showed lower pH, WHC (water holding capacity), and higher DL (drip loss) and CL (cooking loss) than those stocked with HD. Pigs stocked with LD showed lower cortisol level than those stocked with HD. Therefore, Pigs exposed to high stock density (lower than 0.5 m²/100 kg) in high air temperature during pre-slaughter caused acute stress and lead to PSE (pale, soft, exudative) pork incidence. Based on obtained results, stocking of too high (lower than 0.5 m²/100 kg) density is generally not good for meat quality and animal welfare at high temperatures.

• Journal of Animal Science and Technology
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• 제63권3호
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• pp.651-661
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• 2021

This study aimed to investigate whether breed, sex, and age affected temperament differently (more or less neophobic) in mature horses during a novel object test. The study included Jeju crossbred (n = 12, age = 9.42 ± 4.57 y), Thoroughbred (n = 15, age = 10.73 ± 3.09 y), and Warmblood horses (n = 12, age = 13.08 ± 3.55 y) with the females (n = 22, age = 11.36 ± 4.24 y) and geldings (n = 17, age = 10.65 ± 3.66 y). Jeju crossbreds (Jeju horse × Thoroughbred) are valuable considering their popular usage in Korea, but limited studies have explored temperament of Jeju crossbred horses. A trained experimenter touched the left side of the neck with a white plastic bag (novel object). The test ended when the horse stopped escape response and heart rate (HR) dropped to baseline. Behavioral score and escape duration were measured as behavioral variables. Multiple variables related to HR and heart rate variability (HRV) were measured to reflect emotional state. These included basal HR (BHR), maximum HR (MHR), delay to reach maximum heart rate (Time to MHR), standard deviation of beat-to-beat intervals (SDNN), root mean square of successive differences (RMSSD), and ratio of low to high frequency components of a continuous series of heartbeats (LF/HF). Statistics revealed that Thoroughbreds had significantly higher behavioral scores, and lower RMSSD than Jeju crossbreds (p < 0.05), suggesting greater excitement and fear to the novel object in Thoroughbreds. None of the behavioral or cardiac parameters exhibited sex differences (p < 0.05). Age was negatively correlated with SDNN and RMSSD (p < 0.05), indicating that older horses felt more anxiety to the novelty than younger horses. Thoroughbreds and females had distinct correlations between behavioral and HRV variables in comparison with other groups (p < 0.05), implying that escape duration might be a good indicator of stress, especially in these two groups. These results are expected to improve equine welfare, safety and utility, by providing insights into the temperament of particular horse groups, to better match reactivity levels with specific functions.