• Journal of Veterinary Science
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• 제19권6호
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• pp.846-849
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• 2018

A group of benign Theileria species, which are often referred to as T. orientalis/T. buffeli/T. sergenti group, has low pathogenicity in cattle. Herein, we report on Theileria spp. in cattle on a farm from China. Based on phylogenetic analysis of the major piroplasm surface protein gene sequences, we detected 6 genotypes that were categorized as Types 1, 2, 3, 4, and 5 as well as an additional Type 9 genotype. The new epidemiological features of the T. orientalis/T. buffeli/T. sergenti parasites in China indicate a greater diversity in the genetics of these species than had been previously thought.

• Animal Bioscience
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• 제37권4호
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• pp.591-599
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• 2024

Objective: Sumba Ongole (SO) cattle are valuable breed due to their important role in the development of Indonesian cattle. Despite rapid advances in molecular technology, no genomic studies on SO cattle have been conducted to date. The aim of this study is to provide genomic profile related to the population diversity, admixture, and demographic trends of SO cattle. Methods: Genomic information was gathered from 79 SO cattle using the Illumina Bovine SNP50 v3 Beadchip, and for comparative purposes, additional genotypes from 209 cattle populations worldwide were included. The expected and observed heterozygosity, inbreeding coefficient, pairwise fixation indices between-population, and Nei's genetic distance were examined. Multidimensional scaling, admixture, and treemix analyses were used to investigate the population structure. Based on linkage disequilibrium and effective population size calculations, the demographic trend was observed. Results: The findings indicated that the genetic diversity of SO cattle was similar to that of other indicine breeds. SO cattle were genetically related to indicines but not to taurines or Bali cattle. The study further confirmed the close relationship between SO, Ongole, and Nellore cattle. Additionally, a small portion of the Ongole mixture were identified dominant in the SO population at the moment. The study also discovered that SO and Bali cattle (Bos javanicus) could have been ancestors in the development of Ongole Grade cattle, which corresponds to the documented history of Ongolization. Our finding indicate that SO cattle have maintained stability and possess unique traits separate from their ancestors. Conclusion: In conclusion, the genetic diversity of the SO cattle has been conserved as a result of the growing significance of the present demographic trend. Consistent endeavors are necessary to uphold the fitness of the breed.

• Asian-Australasian Journal of Animal Sciences
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• 제6권3호
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• pp.389-394
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• 1993

A study on housing and management of dairy cows was conducted in three villages. All activities of husbandry related to the housing and the condition of the cows were observed and farmers were interviewed using a questionnaire. The main type of housing was a tie stall mostly in the back yard area with a gable or shed type roof. Inside the shed the temperature ranged from 17 to $29^{\circ}C$ and the relative humidity ranged from 62 to 73%. Drainage and manure handling was poor which lead to poor cleanliness of the stables and animal skins. The floor space was mostly wide and the roof level was low (less than 2.5 m). The slope of the floor (1-3%) was sufficient, the roughness of the floor was of medium quality. The shape and size of the feed trough was good with a surface of mostly irregular forms. Concentrate was mixed with water and offered in liquid form in pails made from plastic or from parts of rubber car tires. Hoof length was too long which could lead to unstable position and self injury. It is concluded that the housing conditions of dairy cattle need to be improved in order to improve the condition of the animals and the production performance.

• Asian-Australasian Journal of Animal Sciences
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• 제2권3호
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• pp.402-403
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• 1989

• Asian-Australasian Journal of Animal Sciences
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• 제17권9호
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• pp.1246-1254
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• 2004

Two separate trials were designed to determine effects of dietary level of whole flaxseed (WFS) on fatty acid composition of serum, and subcutaneous, perirenal, intermuscular, and intramuscular adipose tissues of Korean Hanwoo cattle. Twentyone bulls (trial 1) and 15 cows (trial 2) were assigned to diets containing 0, 10 or 15% WFS. Relative treatment effects were similar between bulls and cows. The proportion of C18:3 in serum and to a lesser extent in adipose tissues were increased by dietary inclusion of WFS, reflecting supplemented lipid composition of WFS that escaped ruminal biohydrogenation. Animals fed WFS had a lower proportion of saturated fatty acids in serum and adipose tissues than animals fed diets without WFS, while the opposite trend was observed in unsaturated fatty acids with little differences between two WFS groups. WFS-fed animals had higher proportions of C18:1, 18:2, 18:3, 20:3, and 22:3 and lower proportions of C12:0, 14:0, 16:0 and 18:0 in intramuscular fat than animals fed diets without WFS. Furthermore, feeding WFS increased proportions of both $\omega$-3 and $\omega$-6 fatty acids but decreased the ratio of $\omega$-6/$\omega$-3 substantially. In conclusion, feeding WFS can be an effective method of increasing absorption of unsaturated fatty acids, and subsequent deposition in adipose tissues.

• 한국초지조사료학회지
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• 제28권3호
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• pp.237-244
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• 2008

본 연구는 사료작물 작부체계에 따른 액상분뇨 시용수준이 호밀과 호밀-레드 클로버의 생산성 및 지력증진에 미치는 영향을 조사하기 위한 것으로, 경기도 광주시 곤지암에서 2년간 수행 되었다. 작부체계(호밀단작, 호밀-레드 클로버 혼작)를 주구, 우분액비의 시용수준(0,150, 300 kg/N/ha)를 세 구로 하여 분할구 배치법 3반복으로 실험하였다. 파종량은 호밀-레드 클로버 혼작시 호밀 130 kg/ha, 레드 클로버 20 kg/ha을 매년 파종했으며, 호밀 단작시 150 kg/ha를 파종하여 수행하였다. 호밀단작과 호밀-레드 클로버 혼작에서 건물 생산량은 차이가 나타나지 않았으나 우분액비 시용이 증가함에 따라 그 생산성은 증가하였다(p<0.05). 호밀단작과 호밀-레드 클로버 혼작에서 조단백질 및 TDN 함량은 차이가 나타나지 않았으나 우분액비 시용이 증가함에 따라 조단백질 함량은 증가 하였다(p<0.05). 그러나 TDN 함량은 시용 수준 증가에 따른 영향이 거의 나타나지 않았다. NDF 및 ADF 함량은 작부체계와 우분액비 시용수준의 증가에 따라 거의 영향이 나타나지 않았다. 토양유기물 함량은 시험 시작 전 토양보다 시험 후 토양에서 현저하게 증가하였으며, 작부체계에 의한 영향은 나타나지 않았다. 그러나 우분액비 시용이 증가함에 따라서 현저하게 증가하였다(p<0.05).

• 한국초지조사료학회지
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• 제19권2호
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• pp.141-146
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• 1999

우리나라 기후조건하에서 액상발효 우분의 시용시기(봄, 가을, 봄/가을 분시)와 시용수준(0, 50, 100, $200kgN\;ha^{-1}$)을 달리 했을 때 토양중의 $NO_3^-$ 함량에 대하여 연구한 결과는 다음과 같다. 1. 액상발효 우분의 시용시기는 토양중 $NO_3^-$ 함량에 영향을 미치지 않았다. 2. 액상발효 우분의 시용수준 증가는 $NO_3^-$ 함량을 증가시켰지만 평균 $3.6mg\;l^{-1}$ 에 불과하였다. 3. 토양의 층별 $NO_3^-$ 함량은 0~20cm 깊이에서는 분뇨시용 수준과 비례하여 증가하였고 그 함량도 평균 $28.9mg\;l^{-1}$에 달하였지만, 40~60cm층에서는 시용 수준에 관계없이 $7.5{\sim}8.3mg\;l^{-1}$으로 매우 낮았다.

• 대한수의사회지
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• 제25권6호
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• pp.368-378
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• 1989

The blood chemical values were examined from 92 healthy Korean native cattle (72 females and 20 males) in the area of KangwonDo. The results obtained are summarized as follows. 1. There were shown the range and the meam values of total protein$(6.44{

• 한국유기농업학회지
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• 제7권2호
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• pp.89-97
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• 1999

농업과 가축생산에서 상품생산의 원리를 통하여 노동의 공간분배를 관찰할 수 있다. 환경적인 요인에 적응이 잘되면 생산량의 증대와 효과적인 생산을 가져올 수 있다. 농장에서 이윤을 최대화하기 위하여 발생되는 조건에 밀접하게 일치되는 생산을 하도록 노력하여야 한다. 가축생산에서는 이미 잘 알려진 데로 사료생산에 밀접하게 연결되어 있다. 경제연구와 요인분석에 의하여 경제성있는 축산경영을 하는데 두 가지 집단(요인)이 지배적이라는 사실을 발견한다. 첫 번째로, 곡물의 재배지역이다. 그리고 두 번째로, 사료작물 생산형태(사료 및 초지재배지역 및 생산량)이다. 최근에는 환경적인 요인들은 저평가되는 경향이 있다. 중앙집권적인 행정제도의 결과로 인하여 차별화되는 효과는 활동을 못하게 되고, 그리고 동일하다는 개념이 강조되었다. 그와 같은 결과는 오늘날에 관찰될 수 있다. 예를 들어서 초지와 사료작물의 재배가 적당한 지역에 우유와 비육생산은 감소되고 있다. 옥수수와 돼지사육 지역에서도 유사한 현상이 발생되고 있다. 주로 초지경영에서 지역적 환경요인을 이용하지 못하는 현상을 발견할 수 있다. 초지의 합리적인 이용이 축산경영에서 중요하다는 것이다. 그리고 초지의 이용은 경제성있는 생산뿐만 아니라 생태적인 안정성을 유지하기 위하여 가축생산에서 대단히 중요하다.

• 대한수의사회지
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• 제24권2호
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• pp.92-97
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• 1988

One hundred eighteen cattle in the slaughter houses of kyeong ki-do were examined for Sarcocystis cruzi using macroscopic and microscopic method of detection. Sausage-shaped Sarcocystis were detected from the heart, diaphragm, tongue, masseter, liver, kid