• Title/Summary/Keyword: New zealand white rabbits

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Four-Week Intravenous Toxicity Studies of EPO(erythropoietin) in Rabbits (토끼에서 EPO(erythropoietin)의 4주간 정맥 반복투여 독성시험에 관한 연구)

  • 제정환;남정석;양재만;이석만;강병철;이학모;박재학;송동호;유선희
    • Toxicological Research
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    • v.13 no.1_2
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    • pp.139-147
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    • 1997
  • Four-week toxicity of EPO(erythropoietin) was investigated using New Zealand White rabbits according to the established regulations of Korean National Institute of Safety Research. Rabbits were administered intravenously seven days per week for 28 days with dosage of 0, 80, 400 and 2000IU/kg B. W./day. Animals administered with EPO showed no significant changes of body weight, water consumption and feed consumption, and no clinical signs and death. They were not significantly different from the control group in hematological and serum biochemical analysis, urinalysis, prothrombin time, and partial thromboplastin time. In this study, we concluded that EPO had no toxic effect in the New Zealand White rabbits when they were administered intravenously below 2000IU/ kg B.W./ day for 28 days.

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Skin Irritation Study of the Syndella Gel, Topical Drug Containing Deproteinised. Dialysate of Calf′s Blood and Micronomicin Sulfate Rabbits (토끼에서 신델라 겔(송아지의 제단백혈액추출물: 황산 미크로노마이신=20:1 혼합물)의 피부자극성시험)

  • 남석우;이영진;고영권;장만식;최완수;김규봉;우태욱;한정환;홍성렬
    • Biomolecules & Therapeutics
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    • v.4 no.4
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    • pp.415-418
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    • 1996
  • This study was conducted to investigate the skin irritation toxicity of Syndella gel, a combination topical drug containing a deproteinised dialysate of calf's blood and micronomicin sulfate in the ratio of 20 to 1, in New Zealand White rabbits. In the primary skn irritation test with male New Zealand White rabbits, there was no treatment-related effect on clinical sign, nd body weight was not significantly changed. The Primary Irritation index (PII) was 0.33, indicating that Syndella gel was a mildly irritating formulation.

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Eye Irritation, Skin Irritation and Skin Sensitization Tests for Aloewhite in Animals (Aloewhite의 안점막 및 피부에 대한 국소자극시험)

  • 김형식;곽승준;김규봉;이승기;박현선;홍채영;안미영;조태형;오선택
    • Toxicological Research
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    • v.12 no.1
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    • pp.53-58
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    • 1996
  • Eye irritation, primary skin irritation and skin sensitization tests for Aloewhite were tested in New Zealand White rabbits and Hartley guinea pig. In primary skin irritation test of male New Zealand White rabbits, body weights were not significantly changed and Primary Irritation Index (PII) was O.47, indicating Aloewhite as mildly irritating material. In ocular irritation test, any injury on iris, conjunctival membrane, and cornea in New Zealand White rabbits was not observed. No injuries of the ocular mucous membrane were also recorded. Skin sensitization was tested in guinea pig after intradermal and epicutaneous induction and graded 1 with zero % sensitization rate. These results indicate that Aloewhite was not considered to be irritant in test organs of animals.

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Survey of Corneal Thickness, Endothelial Cell and Intraocular Pressure in New Zealand White Rabbits (뉴질랜드 흰 토끼의 각막 두께, 내피세포 및 안압에 관한 조사)

  • Chang, Hwa-Seok;Lee, Dae-Yeoup;Kang, Eun-Hee;Lee, Jae-Hoon;Cho, Yang-Kyeung;Kim, Man-Soo;Kim, Hwi-Yool
    • Journal of Veterinary Clinics
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    • v.27 no.4
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    • pp.411-414
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    • 2010
  • Rabbit's cornea is the most common thing that used for researches in ophthalmology, so many experimentations have done. The purpose of this study was to survey the corneal pachymetry, tonometry and specular microscopy in New Zealand white rabbits. Three months old male rabbits ($2.9{\pm}0.2\;kg$) were examined with contact the specular microscope to evaluate the endothelial cell density, coefficiency of variation and the percentage of hexagonal cells in the central cornea. For the pachymetry, ultrasonic pachymeter was used for central cornea in each twenty rabbits, and tonometry was performed forty rabbit's eyes to evaluate the intraocular pressure. Corneal endothelial cell density in New Zealand white rabbit was $3304{\pm}354\;cell/mm^2$. Coefficiency of variation was $45.8{\pm}2$ and the percentage of hexagonal cells in the central cornea was $44.4{\pm}11%$. The pachymetry of cornea was $346.1{\pm}21\;{\mu}m$ and tonometry of eye was $14.3{\pm}2\;mmHg$. It is considered that normal New Zealand white rabbit's pachymetry, specular microscopy and tonometry were useful basic data of rabbit's cornea for research and clinic in veterinary ophthalmology.

Skin and Eye Irritation Test of Bovine Somatotrophine-sustained Release (BST-SR) in Rabbits (토끼에게 소성장 홀몬-서방형 제형(BST-SR)의 피부 및 안점막 자극에 관한 연구)

  • 강경선;최경철;신동진;김형욱;조재진;이영순
    • Journal of Food Hygiene and Safety
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    • v.6 no.3
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    • pp.171-177
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    • 1991
  • According to the Established Regulations of National Institute of Safety Research, the skin-irritation test of BST-SR (Lucky Ltd.) was perfonned for seven days in New Zealand White Rabbits. During treatment periods no significant clinical symptom was observed. Significant changes such as erythema, scar tissue and edema were not shown on the applicating sites. According to Primary Irritation Index of Draize, skin irritation rate was assessed as "Zero". The eye irritation of BST-SR (Lucky Ltd.) was examined in nine New Zealand White rabbits, based on the Established Regulation of National Institute of Safety Research. 0.1 ml of test material was dropped on right eye, and after 20~30 seconds, three rabbits' eyes were cleaned with wann saline for 1 minute. Other six rabbits' eyes were left uncleaned. The untreated left eyes were negative control. The lesions of cornea, iris and conjuntiva were assessed by the Grade table (from the Regulation of National Institute of Safety Research), and it is concluded that BST-SR has no eye-irritation.

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Effect of Feeding Head Lettuce, Water Spinach, Ruzi grass or Mimosa pigra on Feed Intake, Digestibility and Growth in Rabbits

  • Nakkitset, Supharoek;Mikled, Choke;Ledin, Inger
    • Asian-Australasian Journal of Animal Sciences
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    • v.21 no.8
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    • pp.1171-1177
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    • 2008
  • The performance of growing rabbits fed Ruzi grass (Brachiaria ruziziensis), head lettuce (Lactuca sativa) residue, Mimosa pigra and water spinach (Ipomoea aquatica) was studied in an experiment using 64 rabbits (4 males and 4 females per treatment) of 2 breeds, New Zealand White and a crossbred between New Zealand White and native breed. The rabbits had an average initial weight of 668 g, were about 6 weeks old and were housed in individual pens. The foliages were fed ad libitum and a commercial concentrate was fed at a restricted level of 2% of body weight on a dry matter (DM) basis. In the digestibility experiment, the rabbits, 4 per foliage and males only, were fed the same foliages as in the growth experiment but without concentrate. Daily weight gain was lower in the group fed Ruzi grass, 14.8 g/d (p<0.001) compared to 17.6, 18.5 and 18.4 g/d for head lettuce, Mimosa pigra and water spinach, respectively. Feed intake and feed conversion ratio were lowest for the rabbits fed water spinach, 66 g DM/d and 3.6 kg DM/kg live weight, respectively. The New Zealand White breed had a higher daily gain than the crossbred rabbits (p<0.05), 18.0 and 16.7 g/d, respectively. There were no significant differences in feed intake, growth or feed conversion ratio due to sex. The digestibility coefficients of DM, organic matter, crude protein, crude fiber, neutral detergent fiber and acid detergent fiber were significantly lower (p<0.001) in the rabbits fed Ruzi grass. Breed and sex had no effect on digestibility. In conclusion, feeding head lettuce residue, Mimosa pigra and water spinach resulted in higher growth rate and digestibility than feeding Ruzi grass and can be recommended as alternative feeds.

Eye Irritation, Skin Irritation and Skin Sensitization tests for Aloewhite in Animals

  • Kim, Hyung-Sik;Kwack, Seung-Jun;Kim, Kyu-Bong;Lee, Seung-Ki;Park, Hyun-Sun;Hong, Che-Young;Ahn, Mi-Young;Jo, Tea-Hyung;Oh, Sun-Tack
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1996.04a
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    • pp.250-250
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    • 1996
  • Eye irritation, primary skin irritation and skin sensitization tests for Aloewhite were tested in New Zealand White rabbits and Hartley guinea pig. In primary skin irritation test of male New Zealand White rabbits, body weights were not significantly changed and primary Irritation Index(PII) was 0.47, indicating Aloewhite as mildly irritating material, In ocular irritation test, any injury on iris, conjunctival membrane, and cornea in New Zealand White rabbits was not observed. No injuries of the ocular mucous membrane were also recorded. Skin sensitization was tested in guinea Peg after intradermal and epicutaneous induction and graded I with zero % sensitization rate. These results indicate that Aloewhite was not considered to be irritant in test organs of animals.

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Skin Irritation of Natural Dyes Extracted from Onion (Allium cepa) (양파로부터 추출한 천연염료의 피부자극성 시험)

  • 배순이;오태광;박승춘
    • Toxicological Research
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    • v.13 no.1_2
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    • pp.161-165
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    • 1997
  • This study was conducted to investigate the skin irritation by transdermal administration of the three dyes. These dyes were originated from onion by using extraction method. By the order of extraction from onion, A-dye was obtained from onion by using water at 90-100$\circ$C. B-dye was extracted from A-dye with ethylacetate. After ethylacetate extraction from A-dye, the lower layer named as C-dye. Twenty-four New Zealand white rabbits were divided into three groups. The each groups was consisted of two subgroups according to high dose (extracted dyes) and low dose (the 100-fold dilutions of A-, Band C-dye). In primary skin irritation test of male New Zealand White rabbits, body temperature and weights were not significantly changed and blood cells were positioned in normal blood cell ranges of health rabbits. Primary irritation index was "0" in the test and control sites of all animals used in this study. By the results obtained in the present test, all dyes were evaluated as a non-irritant on the basis of the criteria of Draize.of Draize.

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Eye Irritation, Skin Irritation and Skin Sensitization Tests for Nonspecific Immunostimulator BARODON® (비특이 면역증강제 BARODON® 의 안점막 및 피부에 대한 국소자극시험)

  • ;;;;;;Nguyen Ba Tiep
    • Toxicological Research
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    • v.19 no.1
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    • pp.39-44
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    • 2003
  • Two local irritation and skin sensitization studies of nonspecific immunostimulator, $BARODON^{\circledR}$ were carried out with New Zealand White rabbits and Hartley guinea pigs. In skin irritation test of male New Zealand White rabbits, body weights were not significantly changed and there were no responses after treatment for 24 or 72 hours and the Primary irritation index (P.1.1.) was '0'. And, in the eye irritation test, there were chemosis in some of rabbits. One of 3 rabbits in washing group was detected chemosis after 24 and 72 h following treatment and 2 of 6 rabbits in non-washing group were detected chemosis after 24h and 7 days following treatment. Therefore, total score is '4' after 24 h and '2' after 72 h following treatment by conforming article "some blood vessel are clearly hyperemic" . However evaluation value is non-irritant because M.O.I. (Mean ocular irritation index) score is below during the all experimental period and no significance through individuals and exposure time. In skin sensitization, the score of skin reaction was graded 1 with 0% sensitization rate. Taken together, these results indicate that $BARODON^{\circledR}$ may be non-irritant material. material.

Effect on Blood Lipids and Lipoproteins of A Supplement of Korean Pinenut Oil, rich in 5-Olefinic Acids, in Normocholesterolemic New Zealand White Rabbits (한국산 잣기름이 정상토끼의 혈중 지방질 및 지단백질의 대사에 미치는 영향)

  • 윤태헌
    • Journal of Nutrition and Health
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    • v.27 no.4
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    • pp.323-335
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    • 1994
  • The present study was carried out in normocholesterolemic New Zealand white(NZW) rabbit, to evaluate the effect of dietary supplementation with Korean pinenut oil, on plasma lipids, plasma lipoproteins, liver lipids and platelet aggregation. NZW rabbits were fed for 80 days on a commercial chow diet supplemented with 5% of energy as fats(soybean oil or pinenut oil) or 10% of energy as fats(soybean oil or pinenut oil). A control group was fed a commercial stock diet. There were no significant effects of pinenut oil on plasma free cholesterol, HDL-cholesterol, triglycerides, glucose and lecithin-cholesterol acyltransferase, as compared with those obtained from rabbits fed the soybean oil diet. After 80 days, the concentration of plasma free fatty acid in only the pinenut oil group was significantly decreased by about 50% relative to the control diet. At the end of the dietary treatment, liver triglycerides and phospholipids were significantly decreased in the pinenut oil group, compared to the how diet, whereas the soybean oil-consuming rabbits had only significantly decreased phospholipid levels. Cholesterol contents of liver were unaffected by type of dietary fat. At the end of 80 days, a diet containing pinenut oil resulted in a decrease in apolipoprotein B and the apo B/apo AI ratio as compared with the stock diet or soybean oil diet. Platelet aggregation induced by collagen or arachidonic acid was depressed significantily in pinenut oil diet.

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