• Asian-Australasian Journal of Animal Sciences
• /
• 제24권10호
• /
• pp.1473-1482
• /
• 2011

Adult male musk deer (Moschus spp.) secrete musk, a widely used ingredient in traditional Asian medicine and the international perfume industry. Musk deer are endangered due to historic over-utilization of musk and habitat loss. Musk deer farming, provides an important way of conserving musk deer and ensuring a sustainable musk supply. For over 50 years musk deer farming has been conducted in China with the endangered Alpine musk deer (Moschus sifanicus) the predominant farmed musk deer species. To date, few studies have examined the musk production of captive musk deer. This study analyzed musk-extraction data collected from 1997 to 2009 at Xinglongshan Musk Deer Farm, Gansu, China. The musk-extraction ratio (MER) of captive male musk deer was 90.30% (n = 732), while the annual average musk extraction (AME) per animal was $7.90{\pm}0.17\;g$ with the range from 0.00 g to 34.20 g (n = 732). The origin of the deer had an influence on AME and MER production, with male wild-captured (WC) individuals recording higher values (AME, $8.76{\pm}0.27\;g$, n = 272; MER, 93.75%, n = 272) than those of captive breeding (CB) males (AME: $7.39{\pm}0.22\;g$, n = 460; MER: 88.26%, n = 460). The origin of an individual's parents, however, did not influence AME and MER. Age also influenced musk production with the MER of 1.5-year-old males being 87.5% with an average musk production of $8.27{\pm}0.47\;g$ (n = 96). The peak period for musk production was from 1.5 to 8.5 years of age. The results of our study demonstrate musk deer farming could work as an effective measure to protect musk deer and provide sustainable musk resources, however, the musk production including MER and AME could be improved through optimizing the managing and breeding system in endangered musk deer farming.

• Asian-Australasian Journal of Animal Sciences
• /
• 제14권5호
• /
• pp.701-709
• /
• 2001

Yeso sika deer (Cervus nippon yesoensis) grazed on various types of plants, and the fiber content in these plants was low. The tastes of yeso sika deer for existing feeds for ruminant livestock resembled those of sheep. Though the digestibility of these feeds in yeso sika deer was slightly lower than that in sheep, the nutritive values of DCP and TDN were similar between the two species, suggesting that feed for sheep can be utilized. Therefore, in small-scale farming of yeso sika deer, the feeding amount in feeding planning can be determined using the feeding standards for sheep. However, when concentrates are fed, correction of TDN is necessary. In large-scale pasturage, the nutritional intake in summer is adequate because yeso sika deer graze on various types of wild plants. In winter, they mainly graze on sasa (Sasa senanensis), and supplementary food may be necessary to supply TDN. Thus, since yeso sika deer graze on many types of wild plants, existing feeds for ruminant livestock can be used. In addition, plant biomasses except concentrates that do not cause competition with existing livestock may be effectively utilized in yeso sika deer, suggesting their importance as animal resources. The data on the intake and nutritive values of Sasa senanensis can be parameters for estimating the appropriate inhabitant number of wild yeso sika deer in wintering areas.

• 한국동물위생학회지
• /
• 제33권3호
• /
• pp.271-274
• /
• 2010

With deer farming now becoming recognized as one of the alternative livestock farming practices, there has been much attention on infectious diseases of cattle, but less awareness of these diseases in deer. Serum samples were randomly collected from 78 deer from 31 farms and 7 wild water deer from wild animal medical center during 2005 to 2007, respectively. A total 85 sera were tested for Neospora caninum antibodies by ELISA. Fourteen farmed deer(17.9%) were positive to N. caninum but no antibodies were found in sera from wild water deer. The sera from all of the area for these study showed positive in the range from 6.7 to 30.7%. On the basis of these study, farmed deer in Jeonbuk province were exposed extensively and seriously to N. caninum which might present a risk to other species included cattle and dog.

• Asian-Australasian Journal of Animal Sciences
• /
• 제22권5호
• /
• pp.740-746
• /
• 2009

Rusa deer are the only viable commercial tropical deer species for farming in the tropics because of their hardiness, adaptability and prolific characteristics. Twelve entire rusa stags were slaughtered according to halal procedure and used for carcass evaluation and cutability studies. Three carcass categories; large (46 to 55 kg), medium (36 to 45 kg) and small (25 to 35 kg) were developed for rusa stags. This study indicated that entire Moluccan rusa deer stags with mean live weight ranges from 50 to 80 kg and age groups of 15 to 29 months showed dressing percentage of 58 to 62%. Carcass conformation of rusa stags showed significantly (p<0.05) higher forequarters portion than hindquarters for medium (mean weight, 40.8 kg) and large (mean weight, 50.0 kg) carcass categories. The large carcass category was significantly (p<0.05) bigger in hindquarters portion (47.3% vs. 45.4%) than the medium carcass category. This study showed that medium and large carcass categories are more suitable for boneless cuts since the muscles were larger than small carcasses and easy for deboning. Stag carcasses showed higher proportion of the musculature in the high-priced areas of the carcass such as in round cuts. Bone-in cuts are more suitable for small carcasses since the muscles were smaller and difficult to debone (mean weight, 30.5 kg). About 90% of total deer carcasses in the small carcass category were developed into retail bone-in cuts (excluding 9.9% of breast, shank and trimming). The carcass characteristics and cutability information derived from this study can be used as a basis for a venison marketing strategy for deer farming and production in the tropics.

• Asian-Australasian Journal of Animal Sciences
• /
• 제17권4호
• /
• pp.569-582
• /
• 2004

Current growth in the deer industry is 20% per annum as the demand increases for venison in Europe, including the increased use in Asia of antlers as a natural medicine by humans. The deer industry in Australia has developed rapidly, but farm profitability has fluctuated markedly. The knowledge on deer farming has largely been adopted from New Zealand (NZ) and the United Kingdom (UK) although the environmental conditions in these deer growing countries differ markedly from Australia. The practice used for weaning is one of the key factors influencing the profitability of the industry. However, a wide range in weaning dates are practised by farmers leading to the question of whether deer should be weaned after mating to reduce the stress during weaning or should they be weaned in the pre-rut period to allow does to recover their body condition for the next reproduction cycle. This review examines the effect of weaning time on the performance of does and hinds and the subsequent growth rate of the fawns and calves. Gaps in knowledge of weaning procedures and nutritional management for early weaned deer are identified.

• 대한한의학방제학회지
• /
• 제24권4호
• /
• pp.323-333
• /
• 2016

Objectives : The purpose of this study was to investigate musk deer in taxonomic status and genus species. We investigated the characteristic of musk deer for medicinal usages. Methods : To identifications of musk deer on the taxonomic status and genus species, the literary investigation were conducted on the Korean, China, and Japan pharmacopoeia and published herbal books, CITES Species Lists too. Results : Musk deer placement in a separate family status is the Moschidae. M. chrysogaster Hodgson and M. sifanicus Przewalski was the same species. So, Alpine musk deer revised M. chrysogaster Hodgson[=M. sifanicus Przewalski]. Geographic distribution of M. moschiferus L. divided Sibirica group and himalaica group. Group himalaica contains three subspecies: Korean musk deer(M. moschiferus parvipes Hol.), Chinese musk deer(M. chrysogaster Hodgson), and Himalayan musk deer(M. leucogaster Hodgson). The genetic divergence between M. moschiferus L. and other species was clearly distinguished from the others. M. berezovskii Flerove was less than the others. However, the divergence among M. chrysogaster Hodgson, M. fuscus Li, and M. leucogaster Hodgson were quite low. Musk deers are mostly distributed around the high-plateau. Moschus were from Nepal, Bhutan, Russia, China. Forest musk deer(M. berezovskii Flerove) farming was conducted in China from 1950s. In the Korean hebal pharmacopoeia, Moschus include l-muscone($C_{16}H_{30}O$ : 238.40) over 2% for quantitative test. Conclusions : There are three species of musk deer, Siberian musk deer(M. moschiferus L.), forest musk deer(M. berezovskii Flerove), and Alpine musk deer(M. chrysogaster Hodgson) for medicinal usages.

• Asian-Australasian Journal of Animal Sciences
• /
• 제7권3호
• /
• pp.347-355
• /
• 1994

Thirty farmers, representing three major deer counties in Kyung-Kee province and 50 farmers scattered in Chung-Buk province were interviewed to determine the current status of the Korean deer industry. Items surveyed were general information, farmed deer breeds. farm facilities, feeding and nutrition, hygiene and disorder incidence, velvetting, income sources, products and their sale, management problems and herd size control. The 888 deer farmed in Kyung-Kee province included spotted deer (Cervus nippon. 69.4%), red deer (Cervus elaphus, 6.1%), wapiti (Cervus elaphus canadensis, 12.2%), spotted $\times$ red deer hybrids (6.2%), red deer $\times$ wapiti hybrids (4.6%). and fallow deer (Dama dama, 1.5%). Poor information on feeding was evidenced by wide variation among farms of daily feed supply and ratios of forage to concentrate, and poor nutritional considerations according to physiological status of deer. Hygiene needed more attention. The incidence of diseases and disorders was high: enteritis (73.3% in Kyung-Kee province), fractures (60.0%), and dystocia (56.7%). The major source of farm income was velvet antler and its blood. To improve productive efficiency, attention should be given to improving farm facilities, simplified product marketing, developing standard feeding system, and economic grazing system.

• Journal of Ecology and Environment
• /
• 제45권2호
• /
• pp.88-96
• /
• 2021

Background: Sika deer, Cervus nippon, were originally introduced to South Korea from Japan and Taiwan for commercial farming purposes. Unfortunately, they were released into the wild during religious events and have since begun to impact the native ecosystem and species endemic to South Korea. The study of activity patterns can improve our understanding of the environmental impact of non-native species and their association with sympatric species. Using camera traps, we studied the diel and seasonal activity patterns of non-native sika deer and quantified the temporal overlap with sympatric mammalian species in the Muljangori-oreum wetlands of Hallasan National Park, South Korea. Results: A total of 970 trap events were recorded for five mammalian species from nine locations during the camera-trap survey. Siberian roe deer (Capreolus pygargus tianschanicus) had the highest number of recorded events (72.0%), followed by sika deer (Cervus nippon) (16.2%), wild boar (Sus scrofa) (5.0%), Asian badger (Meles leucurus) (4.5%), and the Jeju weasel (Mustela sibirica quelpartis) (2.0%). Sika deer had bimodal activity patterns throughout the year, with peaks throughout the spring-autumn twilight, and day and night time throughout the winter. Relating the daily activity of sika deer with other mammalian species, roe deer expressed the highest degree of overlap (Δ₄ = 0.80) while the Asian badger demonstrated the lowest overlap (Δ₄ = 0.37). Conclusions: Our data show that sika deer are a crepuscular species with seasonal variations in daily activity patterns. Additionally, we identified the temporal differences in activity peaks between different mammals in the Muljangori-oreum wetlands and found higher degree of overlap between sika deer and roe deer during twilight hours.

• 한국축산시설환경학회지
• /
• 제9권2호
• /
• pp.123-130
• /
• 2003

본 연구에서는 우리나라 양록가에 대한 일반현황 및 사육현황을 파악하고, 사료조달현황 및 양록 경영 현황, 양록 산업의 당면과제 등을 조사 분석하여 양록가 및 정부시책에 필요한 기초 자료를 제시하고자 하였으며 그 결과는 다음과 같다. 1. 조사농가의 경영주 연령은 40대 이상이 84％로 대부분이었으며, 20대는 1％에 불과하였는데 이는 젊은층의 농업기피 현상과 무관하지 않다고 추측된다. 경영주의 학력은 대졸이상이 53％로 다른 농업분야에 비하여 비교적 높았으며, 양록업 종사전의 직업은 원예, 공직 등이 대부분으로 양록업의 국제 경쟁력을 확보하기 위해서는 이들에 대한 전문교육이 필요한 것으로 판단된다. 경영형태는 부업형태가 53％로 가장 많았으며, 전업형태는 전에 비하여 상당히 감소하였는데 이는 녹용의 개별 판매 외에는 별다른 판매방법을 갖고 있지 못한 양록가들이 전업형태를 유지하는 것에 대한 위험부담 기피현상 때문이라 생각된다. 양록업 종사 동기는 다른 가축에 비하여 더럽지 않고(95％), 소득수준이 높으며(75％), 노동력이 적게 들기 때문에(51％) 택하는 것으로 나타났다. 2. 조사농가의 대부분이 꽃사슴과 엘크를 사육하고 있는 것으로 대답하였으며, 꽃사슴 및 레드디어는 감소한 대신 엘크사육은 크게 증가한 것으로 나타났는데 이는 녹용 생산량과 밀접한 관계가 있는 것으로 생각되어 앞으로도 이런 추세는 계속되리라 생각된다. 사슴의 확보방법은 자가 생산(51％), 외부구입(30％) 등이었으며 사슴의 외부 구입 시에는 유통업자를 통한 구입이 대부분으로, 이에 대해 많은 양록가들이 불만족을 표시하여 공신력 있는 기관이나 단체의 역할이 필요한 것으로 생각된다. 3. 양록가들이 양록 현장에서 느끼는 가장 어려운 점 중의 하나는 사료조달에 관한 것으로, 주 사료로는 많은 양록가들이 일반 배합 사료를 구입하여 먹이는 것으로 조사되었으며, 사슴 전용 사료 이용은 28％에 불과하여 우리나라 실정에 알맞은 전용 사료의 개발이 필요한 것으로 판단된다. 조사료로는 주로 볏짚, 알팔파건초, 섬유질사료, 떡갈잎 등을 먹이는 것으로 나타나 조사료의 대부분이 수입에 의존하는 품목인 바 우리나라 고유의 조사료 개발에 대한 연구가 필요한 것으로 생각된다. 4. 양록업을 통한 조수입은 3천만원 이하가 대부분(80％) 이었으며, 양록 생산비 중 사료비가 차지하는 비중이 57％로 사료의 대부분을 수입에 의존하고 있는 우리나라의 현실을 감안할 때 사료비 절감을 위한 대책들이 시급히 강구되어야 한다. 5. 양록업의 당면과제 및 애로점에 대해서는 사슴 및 녹용을 이용한 다양한 가공품 개발 미흡, 녹용판매 및 사료조달의 어려움, 과학적 사양관리 체계 개발 미비 등을 지적하여 정부와 학계의 합리적인 정책 수립 및 체계적인 연구가 필요한 것으로 생각된다.

• Agricultural and Biosystems Engineering
• /
• 제7권1호
• /
• pp.18-26
• /
• 2006

In-field site-specific nitrogen (N) management increases crop yield, reduces N application to minimize the risk of nitrate contamination of ground water, and thus reduces farming cost. Real-time N sensing and fertilization is required for efficient N management. An 'on-the-go' site-specific N management system was developed and evaluated for the supplemental N application to com (Zea mays L.). This real-time N sensing and fertilization system monitored and assessed N fertilization needs using a vision-based spectral sensor and controlled the appropriate variable N rate according to N deficiency level estimated from spectral signature of crop canopies. Sensor inputs included ambient illumination, camera parameters, and image histogram of three spectral regions (red, green, and near-infrared). The real-time sensor-based supplemental N treatment improved crop N status and increased yield over most plots. The largest yield increase was achieved in plots with low initial N treatment combined with supplemental variable-rate application. Yield data for plots where N was applied the latest in the season resulted in a reduced impact on supplemental N. For plots with no supplemental N application, yield increased gradually with initial N treatment, but any N application more than 101 kg/ha had minimal impact on yield.