• 제목/요약/키워드: Thirst Level

검색결과 41건 처리시간 0.027초

Significance of Hypovolemia in Feed Intake Control of Goats Fed on Dry Feed

  • Sunagawa, Katsunori;Prasetiyono, Bambang W.H.E.;Shinjo, Akihisa
    • Asian-Australasian Journal of Animal Sciences
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    • 제14권9호
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    • pp.1267-1271
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    • 2001
  • The objective of this study was to examine the significance of feeding induced hypovolemia (decrease in plasma volume) in controlling the feed intake of goats fed on dry feed. In order to alleviate hypovolemia with feeding, a 2 h intravenous infusion (16-18 ml/min) of artificial saliva or mannitol solution was begun 1 h prior to feeding and continued until 1h after the start of the 2 h feeding period. In comparison with no infusion (NI), cumulative feed intake was increased by 41% with artificial saliva infusion (ASI) and by 45% with mannitol infusion (MI) by the completion of the 2 h feeding period. Both infusion treatments (ASI and MI) were significantly different (p<0.05) from the NI treatment in terms of the cumulative feed intake. The cumulative feed intake between the ASI and MI treatments was not significantly different (p>0.05). No infusion treatment (NI) had the lowest cumulative feed intake (929 g DM), whereas MI had the highest (1345 g DM), after completion of the 2 h feeding period. Generally, infusion treatments also increased the rate of eating at all time points after feeding was commenced. Following the first 30 mins of feeding, the rate of eating decreased sharply, and subsequently declined gradually in all treatments. Compared to the NI, both ASI and MI significantly (p<0.05) decreased thirst level (water intake for 30 mins after the completion of the 2 h feeding period) by approximately 13%. However, the thirst level caused by ASI and MI was not significantly different (p>0.05). Both ASI and MI decreased the plasma concentrations of osmolality and total protein, and hematocrit at 1 h after infusion. The results suggested that the thirst sensation in the brain could be produced by feeding induced hypovolemia. Moreover, the results indicate that hypovolemia is one of the factors controlling the feed intake of goats fed on dry feed.

Plasma Osmolality Controls Dry Forage Intake in Large-type Goats

  • Thang, Tran Van;Sunagawa, Katsunori;Nagamine, Itsuki;Ogura, Go
    • Asian-Australasian Journal of Animal Sciences
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    • 제24권8호
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    • pp.1069-1085
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    • 2011
  • In large-type goats that were fed on dry forage twice daily, dry forage intake was markedly suppressed after 40 min of feeding had elapsed. The objective of this study was to clarify whether or not increases in plasma osmolality and subsequent thirst sensations produced by dry forage feeding suppress dry forage intake. Eight large-type male esophageal- and ruminal-fistulated goats (crossbred Japanese Saanen/Nubian, aged 3 to 6 years, weighing $72.3{\pm}2.74$ kg) were used in two experiments conducted under sham feeding conditions. The animals were fed ad libitum a diet of roughly crushed alfalfa hay cubes for 2 h from 10:00 to 12:00 h during two experiments. Water was withheld during feeding in both experiments but was available for a period of 30 min after completion of the 2 h feeding period. In experiment 1, an intraruminal infusion of artificial parotid saliva (RIAPS) in the control replenished saliva lost via the esophageal fistula and an intraruminal infusion of hypertonic solution (RIHS) in the treatment was carried out in order to reproduce the effects of changing salt content due to feed entering the rumen. In experiment 2, the RIHS control was conducted in the same manner as the RIHS treatment of experiment 1. The treatment group consisted of RIHS-with an intravenous infusion of artificial mixed saliva (VIAMS) treatment that was carried out for 3 h to prevent increases in plasma osmolality during feeding. The results of the RIHS treatment in experiment 1 showed that ruminal fluid osmolality increased and then an increase in plasma osmolality was observed. This resulted in the production of thirst sensations and the reduction of cumulative dry forage intake to 43.3% (p<0.05) of the RIAPS control. The results of the RIHS-VIAMS treatment in experiment 2 indicated that ruminal fluid osmolality was the same as the RIHS control but plasma osmolality significantly decreased, and thirst level was markedly reduced. This caused a significant increase of 31.4% (p<0.05) in cumulative dry forage intake in the RIHS-VIAMS treatment compared to the RIHS control. These results indicate that increases in ruminal fluid osmolality during dry forage feeding indirectly suppresses dry forage intake by causing an increase in plasma osmolality and subsequently inducing thirst sensations. The results of the present study suggest that marked decreases in dry forage intake after 40 min of feeding are caused by increases in plasma osmolality and subsequent thirst sensations produced by dry forage feeding.

Effects of Intraruminal Saliva Flow on Feed Intake in Goats Fed on Alfalfa Hay Cubes

  • Sunagawa, Katsunori;Nakatsu, Yoshifumi;Nishikubo, Yoriko;Ooshiro, Takeshi;Naitou, Kouta;Nagamine, Itsuki
    • Asian-Australasian Journal of Animal Sciences
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    • 제15권12호
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    • pp.1738-1746
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    • 2002
  • Research was carried out to ascertain whether or not the volume of saliva flowing into the rumen regulates dry forage intake in ruminants. Goats with a parotid fistula were fed roughly crushed alfalfa hay cubes, concentrated beef cattle feed and $NaHCO_3$ wice daily (10:00-12:00, 16:00-18:00). Except for the days on which experiments were conducted, the animals were free access to drinking water. The animals were intraruminally infused every day prior to the morning feeding period with parotid saliva collected from the parotid fistula over a 24 h period. The present experiment consisted of three treatments, non-infusion (NI), intraruminal infusion of parotid saliva (RSI), and intraruminal infusion of warm water (RWI). In the RSI treatment, approximately 4-5 kg of parotid saliva (280-290 mOsm/l) collected over a 24 h period was intraruminally infused 1 h prior to the commencement of morning feeding. In the RWI treatment, parotid saliva was substituted for warm water ($36^{\circ}C$). After infusions, the animals were fed on roughly crushed alfalfa hay cubes for 2 h. During feeding, eating and saliva secretion rates were measured. Blood samples were also periodically collected from the jugular vein. After 2 h feeding, water intake was measured for 30 min. These measurements were used to define thirst levels. On the day of the experiment, the animals were not access to drinking water during the morning feeding. It is thought that rumen fill in RSI and RWI treatments was higher than the NI treatment. In comparison with the NI treatment however, cumulative feed intake increased by 39.3% with RSI treatment and by 45.9% with RWI treatment after completion of the 2 h feeding period. After 2 h feeding, thirst level in the RSI treatment showed only a 10% decrease compared to the NI treatment, but thirst level in the RWI treatment decreased 49.8%. Despite the significant differences in thirst levels between RSI and RWI treatments, the cumulative feed intake in both treatments was similar. When comparing accumulated saliva secretion volumes 2 h after feeding, volumes in the RSI treatment were significantly 35.9% lower than the NI treatment while volumes in the RWI treatment were unchanged. However, the volumes of saliva and fluid flowing into the rumen were greater in both RSI and RWI treatments when compared to the NI treatment. The results indicate that the amount of saliva flowing into the rumen is a factor regulating feed intake in ruminants fed on dry forage.

The Main Suppressing Factors of Dry Forage Intake in Large-type Goats

  • Thang, Tran Van;Sunagawa, Katsunori;Nagamine, Itsuki;Kishi, Tetsuya;Ogura, Go
    • Asian-Australasian Journal of Animal Sciences
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    • 제25권3호
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    • pp.341-352
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    • 2012
  • In large-type goats that were fed on dry forage twice daily, dry forage intake was markedly suppressed after 40 min of feeding had elapsed. The objective of this study was to determine whether or not marked decreases in dry forage intake after 40 min of feeding are mainly caused by the two factors, that is, ruminal distension and increased plasma osmolality induced thirst produced by dry forage feeding. Six large-type male esophageal- and ruminal-fistulated goats (crossbred Japanese Saanen/Nubian, aged 2 to 6 years, weighing $85.1{\pm}4.89kg$) were used in two experiments. The animals were fed ad libitum a diet of roughly crushed alfalfa hay cubes for 2 h from 10:00 to 12:00 am during two experiments. Water was withheld during feeding in both experiments but was available for a period of 30 min after completion of the 2 h feeding period. In experiment 1, saliva lost via the esophageal fistula was replenished by an intraruminal infusion of artificial parotid saliva (RIAPS) in sham feeding conditions (SFC) control, and the treatment was maintained under normal feeding conditions (NFC). In experiment 2, a RIAPS and non-insertion of a balloon (RIAPS-NB) control was conducted in the same manner as the SFC control of experiment 1. The intraruminal infusion of hypertonic solution and insertion of a balloon (RIHS-IB) treatment was carried out simultaneously to reproduce the effects of changing salt content and ruminal distension due to feed entering the rumen. The results of experiment 1 showed that due to the effects of multiple dry forage suppressing factors when feed boluses entered the rumen, eating rates in the NFC treatment decreased (p<0.05) after 40 min of feeding and cumulative dry forage intake for the 2 h feeding period reduced to 43.8% of the SFC control (p<0.01). The results of experiment 2 indicated that due to the two suppressing factors of ruminal distension and increased plasma osmolality induced thirst, eating rates in the RIHS-IB treatment were, as observed under NFC, reduced (p<0.05) and cumulative dry forage intake for the 2 h feeding period decreased to 34.0% of the RIAPS-NB control (p<0.01). The combined effects of ruminal distension and increased plasma osmolality accounted for 77.5% of the suppression of dry forage intake 40 min after the start of dry forage feeding. The results indicate that ruminal distension and increased plasma osmolality induced thirst are the main factors in the suppression of dry forage intake in large-type goats.

소양인 당뇨병환자에 양격산화탕을 투여한 증례 (Clinical Study about the Diabetes Mellitus Patients Administration of Yangkyuksanwha-tang)

  • 정성일;김종원
    • 동의생리병리학회지
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    • 제16권6호
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    • pp.1308-1313
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    • 2002
  • Backgroud and Purpose ; I intented to be helpful to treat diabetes through a clinical study of effect of soyangin Yangkyuksanwha-tang(凉膈散火湯). Methods : I studied 5 patients with upper diabetes who were diagnosed by Soyangin at department of Sasang constitutional Medicine in Dongeui Oriental Hospital during 1 year from August. 2001 to July. 2002. and then I investigated the clinical symptoms of the diabetics and analyzed level of examination after administration of Yangkyuksanwha-tang. Results and Conclusion ; Yangkyuksanwha-tang was administered to five diabetic patients, So-yang-in for 8 weeks. The symptoms such as frequent urination(P<0.05), thirst with frequent drinking water(P<0.01) have improved after the treatment. As results, level of FBS(P<0.01), total protein(P<0.05) and blood pressure(P<0.05) significantly decreased after administration of Yangkyuksanwha-tang.

Effect of Parotid Saliva Secretion on Dry Forage Intake in Goats

  • Sunagawa, Katsunori;Nakatsu, Yoshifumi;Nishikubo, Yoriko;Ooshiro, Takeshi;Naitou, Kouta;Nagamine, Itsuki
    • Asian-Australasian Journal of Animal Sciences
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    • 제16권8호
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    • pp.1118-1125
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    • 2003
  • Research was carried out to clarify whether a suppression of dry forage intake during the early stages of feeding in ruminants is caused by feeding induced hypovolemia which is produced by the accelerated secretion of parotid saliva. Goats with a parotid fistula were fed roughly crushed alfalfa hay cubes, commercial ground concentrate feed and $NaHCO_3$ twice daily (10:00-12:00, 16:00-18:00). The animals were free access to drinking water all day prior to, during and after experiments. The animals were intraruminally infused every day prior to the morning feeding period with parotid saliva collected from the parotid fistula over a 24 h period. The present experiment consisted of two treatments, non-infusion (RNI) and intraruminal infusion of parotid saliva (RSF). In the RSF treatment, 4-5 kg of parotid saliva (280-290 mOsm/l) collected over a 24 h period was intraruminally infused 1 h prior to the commencement of the morning feeding. During feeding, eating and parotid saliva secretion rates were measured. Blood samples were also periodically collected from the jugular vein. During and after 2 h feeding, water intakes were measured, respectively. These measurements were used to define thirst levels. It is thought that rumen fill in the RSF treatment was higher than the RNI treatment. Plasma osmolality in the RSF treatment increased in the first half of the 2 h feeding period due to the intraruminal infusion of parotid saliva. Therefore, parotid saliva secretion rates in the RSF treatment were lower than the RNI treatment for 30 min period from 30 to 60 min after the commencement of feeding. On the other hand, plasma total protein concentration and hematocrit in the RSF treatment decreased by 3.2 and 3.3% prior to the commencement of feeding due to the intraruminal infusion of parotid saliva. In the first half of the 2 h feeding period, plasma total protein concentration and hematocrit in the RSF treatment showed a tendency to decrease compared to the RNI treatment. Thirst level in the RSF treatment during feeding was approximately 31.3% less than the RNI treatment. Upon the completion of the 2 h feeding period, cumulative feed intake in the RSF treatment was significantly larger (19.7%) than the RNI treatment. The results suggest that a suppression of dry forage intake during the early stages of feeding in goats is partly caused by feeding induced hypovolemia, which is produced by the accelerated secretion of parotid saliva.

당뇨 합병증에 대한 구치료의 임상적 연구 (Clinical Study of Moxibustion on The Complication of Diabetes Mellitus)

  • 이현민;조훈석;신우진;서상호;박동일;홍상훈;김종원
    • 동의생리병리학회지
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    • 제18권1호
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    • pp.294-300
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    • 2004
  • The purpose of this study was to investigate the effects of oxibustion on complications of Diabetes Millitus. We collected 23 patients with glycosurea complications in Songeui Oriental Hospital from April, 2003 to July, 2003, and then expremented Moxibustion, medical examinations and laboratory test for 4 weeks. At the symptons change : Among the symptons which the number over 5 persons of patients is reserved, dysaesthesia of limbs, neuralgic pain, urinary frequent urination, dpontaneous perspiration, thirst, decrease of body weight and malaise showed the improvement over 60%(n=23). Level of FBS was don't have the significant meaning however showed the tendency of the desent, and level of HbA1c significantly decreased after treatment(P&0.001)(n=19).

태음인(太陰人) 당뇨병(糖尿病) 환자에게 버섯 요구르트를 투여한 임상보고 (A Clinical Study of administration of Mushroom yogurt on The Taeumin Diabetes Mellitus Patients)

  • 이현민;조훈석;전수형;김종원
    • 사상체질의학회지
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    • 제16권2호
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    • pp.139-151
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    • 2004
  • 1. Objectives The purpose of this study was to investigate the effects of administration of Mushroom yogurt on the Diabetes Millitus paitients. 2. Methods We collected 24 Taeumin patients with glycosurea in Dongeui Oriental Hospital, and then adminisrtation of Mushroom yogurt, medical examinations and questionnaire test of symptons for 13 weeks. 3. Results (1) At the symptoms change : Subjects of glycosurea clincal symptoms questionnarie which showed improvement above 50 percents were 'I have to urinate frequently' and 'I feel severe thirst'. (n=22) (2) Level of FBS significantly decreased at the inspection of 5 weeks 9 weeks 11 weeks afterwards(P-value=0.008, P-value=0.002, P-value=0.022), Level of HbA1c significantly decreased at the inspection of 13weeks afterwards(P-value=0.000).(n= 24) 4. Conclusions We have concluded that these effects must be useful in the clincal study of the Sasang constitutional treatment on Diabetes Mellitus Patients.

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Deprivation of Esophageal Boluses and Dry Forage Intake in Large-type Goats

  • Van Thang, Tran;Sunagawa, Katsunori;Nagamine, Itsuki;Kato, Seiyu
    • Asian-Australasian Journal of Animal Sciences
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    • 제23권9호
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    • pp.1174-1183
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    • 2010
  • In goats fed on dry forage twice a day, an esophageal fistula was used to investigate the physiological factors present in the marked suppression of dry forage intake that occurs after 40 min of feeding. The animals used in this study were five large-type male esophageal- and ruminal-fistulated goats. Roughly crushed alfalfa hay cubes with any large remaining chunks removed were used as feed for this research. The study was conducted under both normal feeding conditions (NFC) and sham feeding conditions (SFC). In the NFC control, the esophageal fistulae were closed by plugs and the animals ate dry forage in the normal manner. In the SFC treatment, before starting the experiment the plugs for closing the esophageal fistula were removed and the cannulae for collecting boluses were fitted into the fistulae. Therefore, the esophageal boluses were removed via an esophageal fistula before they entered the rumen. In the NFC control, eating rates sharply decreased in the first 40 min of feeding and were subsequently maintained at low levels. However, eating rates in the SFC treatment remained high after 40 min of the feeding period had elapsed and the goats ate continuously during the 2 h feeding period. In comparison with the NFC control ($1,794{\pm}203.80\;g$/2 h), cumulative dry forage intake in the SFC treatment ($3,182{\pm}381.69\;g$/2 h) was 77.4% greater (p<0.05) upon conclusion of the 2 h feeding period. In the SFC treatment, cumulative bolus output ($6,804{\pm}469.92\;g$/2 h) was about twofold the cumulative dry forage intake due to cumulative salivary secretion volume ($3,622{\pm}104.13\;g$/2 h) upon conclusion of the 2 h feeding period. The result indicates that large amounts of secreted saliva during dry forage feeding act in conjunction with consumed feed to form the ruminal load responsible for ruminal distension. The increased plasma total protein concentrations were higher in the SFC treatment than in the NFC control. However, plasma and ruminal fluid osmolalities increased in the NFC control during and after feeding but were mostly unchanged in the SFC treatment. In comparison with the NFC control ($3,440{\pm}548.04\;g$/30 min), thirst level in the SFC treatment ($1,360{\pm}467.02\;g$/30 min) was 60.5% significantly less (p<0.05) upon conclusion of the 30 min drinking period. The results of the present study indicate that In the second hour of the 2 h feeding period, dry forage intake is regulated by factors produced when boluses enter the rumen.

고려인삼과 당뇨병: 세포와 동물 및 인체실험을 통한 고려인삼의 당뇨병에 대한 효능 (Korean Ginseng and Diabetes: An Insight into Antidiabetic Effects of Korean Ginseng (Panax ginseng C. A. Meyer) in Cultured Cells, Animal Models and Human Studies)

  • 서성호;박건국;박종대
    • 생약학회지
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    • 제51권1호
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    • pp.1-29
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    • 2020
  • Diabetes mellitus, commonly known as diabetes, is a group of metabolic disorders characterized by high blood sugar levels over a prolonged period. Diabetes has been found to show many acute complications such as cardiovascular disease, stroke, chronic kidney disease, foot ulcer and damage to eyes. Korean ginseng (Panax ginseng) has been traditionally known to normalize the functional deficiencies of the lung, spleen and stomach, and thus improve the secretion of body fluids, thereby quenching thirst, suggesting it to be effective in the treatment of diabetes. Experimental studies (in vitro and in vivo) have recently shown that Korean ginseng and its extracts exhibit antidiabetic effects, and also insulin secretion and sensitizing effects related to blood glucose control. Moreover, clinical trials on antidiabetic effects of Korean ginseng have been reported to show blood glucose control, improvement of insulin resistance, reduction of postprandial blood glucose level and improvement of serum lipids (TG, TC, LDL-C). These will be critically examined by means of in vitro studies, cell experiment, animal models and human trials with a focus on understanding of molecular mechanisms.