• 제목/요약/키워드: Animals

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Comparative Studies on the Utilization of Glucose in the Mammary Gland of Crossbred Holstein Cattle Feeding on Different Types of Roughage during Different Stages of Lactation

  • Chaiyabutr, N.;Komolvanich, S.;Preuksagorn, S.;Chanpongsang, S.
    • Asian-Australasian Journal of Animal Sciences
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    • 제13권3호
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    • pp.334-347
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    • 2000
  • The present experiment was carried out to study the utilization of glucose in the mammary gland of crossbred Holstein cattle during feeding with different types of roughage. Sixteen first lactating crossbred Holstein cattle which comprised eight animals of two breed types, Holstein Friesian${\times}$Red Sindhi ($50{\times}50=50%$ HF) and Holstein Friesian${\times}$Red Sindhi ($87.5{\times}12.5=87.5%$ HF). They were divided into four groups of 4 animals each of the same breed. The utilization of glucose in the mammary gland was determined by measuring rates of glucose uptake and the incorporation of glucose into milk components in both groups of 50% HF and 87.5% HF animals feeding on either hay or urea treated rice straw. In early lactation, there were no significant differences of the total glucose entry rate and glucose carbon recycling among groups of crossbred animals feeding on either hay or urea treated rice straw. During lactation advance, the total glucose turnover rates and recycling of carbon glucose of crossbred HF animals feeding on urea treated rice straw were markedly higher than those of crossbred HF animals feeding on hay as roughage, whereas there were no significant changes for both groups of crossbred animals feeding on hay. The percentages and values of non-mammary glucose utilization showed an increase during lactation advance in the same group of both 50% HF and 87.5% HF animals. The percentage of glucose uptake for utilization in the synthesis of milk lactose by the mammary gland was approximately 62% for both groups of 87.5% HF and by approximately 55% for both groups of 50% HF animals feeding on either hay or urea treated rice straw. Intracellular glucose 6-phosphate metabolized via the pentose phosphate pathway accounted for the NADPH (reducing equivalent) of fatty acid synthesis in the mammary gland being higher in 87.5% HF animals during mid-lactation. A large proportion of metabolism of glucose via the Embden-Meyerhof pathway in the mammary gland was more apparent in both groups of 50% HF animals than those of 87.5 % HF animals during early and mid-lactation while it markedly increased for both groups of 87.5% HF animals during late lactation. It can be concluded that utilization of glucose in the mammary gland occurs in a different manner for 50% HF and 87.5% HF animals feeding on either hay or urea treated rice straw. The glucose utilization for biosynthetic pathways in the mammary gland of 50% HF animals is maintained in a similar pattern throughout the periods of lactation. A poorer lactation persistency in both groups of 87.5% HF animals occurs during lactation advance, which is related to a decrease in the lactose biosynthetic pathway.

한·중 양국 동물의 상징적 의미의 비교연구 (A comparative study: symbolic meaning of animals between Korea and China)

  • 박민수
    • 비교문화연구
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    • 제21권
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    • pp.271-288
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    • 2010
  • In their everyday life, people form social phenomena and relations through the shapes and habits of animals. Therefore, animals contain the idea of the way of life of certain nations, spiritual and cultural feelings, and the symbolic meaning which can be recognized between the members of the unique nation. The symbolism of animals varies depending on different nations, because the adages are the essence of the language including their culture, thought, custom, and life. Examining their own adages can be one of the ways to find out what the animals symbolize in different nations. Another reason is that they are the dictionaries, reflecting their own way of thinking and traditional values, so to speak. The research shows that, between Korean and Chinese adages, it is in a similar frequency, using materials such as mammals, birds, fishes, reptiles, and insects. The adages are focused on the 12 animals which is familiar to both nations, a rat, an ox, a tiger, a rabbit, a dragon, a snake, a horse, a lamb, a monkey, a rooster, a dog and a boar. We compared the symbolism, the surface meanings in adages, and the figurative meanings of these animals in Korea and China. As a result, it is found that some are almost the same in usage. However, some are totally different such as expressions related to the animals, the cultural differences and clear understanding. It is necessary to do comparative researches in a detailed and various way by studying the issues derived from verbalism.

Intravenous Orexin Reduces LH Secretion in Castrated Camelus Dromedaries Fed a Sub-maintenance Diet

  • Khazali, Homayoun
    • Asian-Australasian Journal of Animal Sciences
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    • 제23권1호
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    • pp.41-46
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    • 2010
  • It has been shown that orexin has an inhibitory effect on gonadotropin secretions in non-ruminant animals. The goal of this study was to determine whether orexin affects LH, and FSH secretions in the camel, as a pseudo-ruminant animal, under different dietary energy content. Sixteen castrated camels were randomly divided into 4 groups. Animals in groups 1 and 2 were fed 100% and animals in groups 3 and 4 were fed 50% energy content in their diet for 20 days. After 20 days, animals in groups 1 and 3 received infusions of 1 $\mu{g}$ orexin and groups 2 and 4 received infusions of 2 $\mu{g}$ orexin into their jugular vein. Blood samples were collected from the jugular vein every 20 minutes from 4 h before the first infusion of orexin until 4 h after the last orexin infusion. Lower dietary energy intake and infusions of 2 $\mu{g}$ but not 1 $\mu{g}$ orexin significantly (p<0.01) decreased the mean plasma concentrations and pulse amplitudes of LH of the animals. Infusion of 1 and 2 $\mu{g}$ orexin did not change the secretions of LH of the animals fed NE. Different energy dietary intake and infusion of 1 and 2 $\mu{g}$ orexin did not change the mean plasma concentrations of FSH of the animals in all groups. Infusions of 1 and 2 $\mu{g}$ orexin significantly (p<0.01) decreased the glucose levels of animals fed LE but not in NE fed animals. Additionally, plasma glucose levels of the LE-fed animals in groups 3 and 4 were significantly (p<0.01) lower than those of the animals in groups 1 and 2 fed NE diet. The results of this experiment indicated that orexin may negatively affect LH and FSH in camels with negative energy balance, but not in those with positive energy balance.

Use of Tumor Necrosis Factor Receptor (TNFR)-Knockout Mice to Probe the Mechanism of Chemically-Induced Asthma

  • Karol, Meryl H.;Matheson, Joanna M.;Lange, Robert W.;Lemus, Ranulfo;Luster, Michael I.
    • Toxicological Research
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    • 제17권
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    • pp.305-307
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    • 2001
  • Toluene diisocyanate (TDI) is widely used in the manufacture of polyurethanes and is a recognized cause of occupational asthma. Although extensive investigations have been undertaken, the molecular mechanism(s) of the disease is still unclear. We hypothesized that inflammatory cytokines are required during both the sensitization and elicitation phases of the disease and have utilized TNF-R knock-out (KO) mice to address the hypothesis. Black C57 TNFR knock-out mice were exposed to TDI by sc injection and challenged by inhalation of 100 ppb TDI vapor. Control animals included: wild type C57 animals, sham-exposed animals that were challenged with TDI, and animals that were injected with anti-TNF antibodies prior to sensitization and again prior to challenge. Total IgE was increased in the knock-out animals compared with the wild type sensitized and challenged animals whereas TDI-specific IgG antibodies did not differ significantly in KO and wild type animals. There was less inflammation in the nares and trachea in KO animals compared with the wild type animals exposed to TD1 as well as less goblet cell hyperplasia and epithelial damage. Airway reactivity was assessed in animals treated with anti-TNF$\alpha$ antibody and found to be substantially reduced compared with that in sensitized and challenged animals. These results indicate that TNF$\alpha$ plays a role in the immunologic and physiologic responses and in airways inflammation in this animal model and suggests a role for TNF in occupational asthma due to TDI.

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동물물리치료 (Animals Physical Therapy)

  • 김진웅;배수찬
    • 대한정형도수물리치료학회지
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    • 제8권2호
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    • pp.45-55
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    • 2002
  • This article review the animals physical therapy. It is so called veterinary physical therapy. The animals physical therapist is working to physical therapy for animals in veterinary clinical field. The veterinary medicine has not veterinary rehabilitation medicine or physical therapy for animals, also physical therapy field in Korea. So, This research will explain about animals physical therapy of Korea and other countries' by journals and internet information and suggest the future of the animals physical therapist. Finally, The veterinary physical therapy is not used to veterinary clinical field in now. But, The veterinary physical therapy will desire to the view of medical serve and economy by the host of animals and clinical veterinarian the future. Animal physical therapy is a new and rapidly developing field of health care for animals. The benefits of physical therapy have long been recognized in humans. More recently, work in the veterinary field has shown the same benefits of physical therapy to be true for animal patients. Performing orthopaedic or neurological surgery, or fitting a human patient with a cast or splint, and then discharging the patient is an outdated approach. In such cases, physical therapy is clearly warranted. Similarly, recent research has shown that post-surgical rehabilitation and therapy after injuries significantly improves the functional outcomes for animals. Physical Therapy is a healthcare profession directed at evaluating, restoring and maintaining physical function and movement. Working with the owner, veterinarian and often other healthcare professionals, a physiotherapist helps your animal to achieve and maintain optimal health and well-being. Equipped with a specialized university Bacheloriate education and intensively educated in Anatomy, Physiology, Biomechanics, Histology, Neurology, and Pathology, PT's are able to assess, diagnose and treat movement and function. Physical Therapy, Sports Medicine and Rehabilitation are recognized sciences applied to both humans and animals. The goals of physiotherapy are to relieve pain, restore range of motion/movement, improve function, prevent injuries and expand the physical potential of the patient. Once in the field, physical therapists actively continue their education to keep up to date on the latest treatments and technologies. Via continuing education courses, physiotherapists can learn how to apply their unique and specialized knowledge to other animal species.

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Effects of Allium Vegetables on Energy Stores and Utilization in Exercising Rats

  • Kong, Eun-Young;Cho, Youn-Ok
    • Preventive Nutrition and Food Science
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    • 제9권1호
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    • pp.39-44
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    • 2004
  • This study investigated the effect of allium vegetable intake on the storage and utilization of energy substrates before, during, and after exercise in tissues of rats. Ninety rats were fed either a control diet or a diet with added Allium sativum (AS, garlic), Allium cepa (AC, onion), Allium fistulosum (AF, spring onion), or Allium tuberosum (AT, Chinese chives) for 4 weeks and were then subdivided into 3 groups: before-exercise (BE); during-exercise (DE); after-exercise (AE). The DE group was exercised on treadmill for 1 hour just before being sacrificed at the end of 4th week of the dietary treatment rats in the AE group were allowed to recuperate for 2 hours after being exercised like the DE group. The levels of glycogen (GLY), triglyceride (TG) and protein (PRO) were compared in liver and skeletal muscle. In the AS diet animals, the level of liver GLY was significantly higher than those of control animals in the BE, DE and AE groups. The level of muscle TG also tended to be higher in BE, but lower in AE than in control animals. In AC animals, the level of muscle GLY was significantly lower than those of control animals in BE, DE and AE. The level of muscle TG also tended to be higher than those of control animals in BE and DE but tended to be lower in AE. In AF animals, the level of muscle GLY was significantly lower than those of control animals in BE, DE and AE. The level of muscle TG was also significantly lower than those of control animals in BE, DE and AE groups. In AT animals, the level of muscle GLY was significantly lower than those of control animals in BE, DE and AE. These results suggest that Allium sativum diets enhance the capacity to store fuel before as well as during exercise and increases the potential to utilize the stored fuel during exercise.

강원도내 야생동물의 부상실태 조사 (Survey on the Actual Condition of Injured Wildlife Animals in Gangwon-Do)

  • 김종택;윤선주;김현철;박인철
    • 한국임상수의학회지
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    • 제21권2호
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    • pp.122-128
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    • 2004
  • This research was conducted to investigate the actual condition of injured wild animals in Gangwon-do between January and December in 2002. The subject of this study was the wounded wild animals on the receipt of the governmental and the civil organizations for medical treatment. Especially, the natural monuments among the wounded were included in this research. 363 cases in birds and 274 cases in mammals were saved from injuries. In the case of the natural monuments, 140 and 7 cases got help in birds and mammals, respectively. Wild animals were injured particularly in summer and the ultimate causes were trauma and dehydration. More than 50% out of the animals under medical treatment from the organizations were dead. It was clear that most causes of the animal injuries were artificial owing to the breakdown of the ecosystem. Consequently, the consistent observation on the control system of the wild animals will be needed. And it will be also necessary to increase research works and the nationwide public city activities on the wild animals.

오음의 사상의학적 음성분석과 고찰 (A study about five-sounds(Gong, Sang, jiao, zhi, yu) of Sasang constitutional sound analysis)

  • 김달래
    • 사상체질의학회지
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    • 제15권1호
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    • pp.50-59
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    • 2003
  • Purpose Five animals sounds which are come under five sounds(Gong, Sang, jiao, zhi, yu) which are compared with the musical scale. It is looking for similarity between five animals' sounds and the musical scale. Methods 녹음 record 1 ig machine 1. Five animals (cattle, horse, pheasant, pig, sheep) sounds has been recording on tape. 2. That was transfer to CSL(computerized speech lab) 3. That was analysed to pitch, formant 1,2,3. energy pitch 4. That analysed result (Pitch, formant 1,2,3. energy ratio) of five animals are calculated and compared with the five musical scale(five sounds) Result The ratio of five animals sounds is not consistent with the musical scale in any five item (pitch, formant 1,2,3. energy). Conclusion 1.The five musical scale has no similarity with the five animals sounds 2.The five sound is supposed to oriented form theoretical back ground of five-going not have no relative with the five animals sounds

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Approaches to Improving Production Efficiencies of Transgenic Animals

  • Tojo, Hideaki
    • 한국가축번식학회지
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    • 제24권4호
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    • pp.343-346
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    • 2000
  • Transgenic animals are very useful for scientific, pharmaceutical, and agricultural purposes. In livestock, transgenic technology has been used forth genetic alteration of farm animals, the production of human proteins inlarge quantities in the milk of transgenic farm animals (Clark et al., 1989; Ebert et al., 1991; Kimpenfort et al., 1991; Wall et al., 1991; Kimpenfort et al., Well et al,m 1991; Hill et al., 1992; Velander et al., 1994; Chen et al.), and the generation of animals with organs suitable for xenotransplantation (Pinkert, 1994; Chen et al., 1999). (omitted)

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Xylazole inhibits NO-cGMP pathway in fetal rat nerve cells

  • Wang, Xinyu;Wu, Yue;Liu, Lin;Bai, Hui;Zhang, Zhiheng;Zhao, Mingchao;Ma, Tianwen;Song, Xiaopeng;Jia, Lina;Lv, Liangyu;Yu, Yue;Xu, Xinyu;Chen, Hong;Gao, Li
    • Journal of Veterinary Science
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    • 제23권1호
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    • pp.16.1-16.13
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    • 2022
  • Background: Xylazole (Xyl) is a veterinary anesthetic that is structurally and functionally similar to xylazine. However, the effects of Xyl in vitro remain unknown. Objectives: This study aimed to investigate the anesthetic mechanism of Xyl using fetal rat nerve cells treated with Xyl. Methods: Fetal rat nerve cells cultured for seven days were treated with 10, 20, 30, and 40 ㎍/ mL Xyl for 0, 5, 10, 15, 20, 25, 30, 45, 60, 90, and 120 min. Variations of amino acid neurotransmitters (AANTs), Nitric oxide-Cyclic GMP (NO-cGMP) signaling pathway, and ATPase were evaluated. Results: Xyl decreased the levels of cGMP and NO in nerve cells. Furthermore, Xyl affected the AANT content and Na+-K+-ATPase and Ca2+-Mg2+-ATPase activity in nerve cells. These findings suggested that Xyl inhibited the NO-cGMP signaling pathway in nerve cells in vitro. Conclusions: This study provided new evidence that the anesthetic and analgesic effects of Xyl are related to the inhibition of the NO-cGMP signaling pathway.