Ramírez MH, Trigo TF Correa GP, Castillo JH, Mercado GMC

Language: English/Spanish
References: 21
Page: 337-343
PDF size: 492.68 Kb.

ABSTRACT

In this study 36 pregnant uteri obtained from a slaughterhouse were investigated; 4 of them contained embryos in the first third of gestation, 26 were in the second third, and 6 uteri in the last one. From each embryo and fetus collected, the liver and lung were macerated, and positive hemagglutination was detected in fetuses on the second third of gestation from 7 uteri. From these fetuses only 2 were positive to the viral identification using a hyperimmune serum against porcine parvovirus (PPV), while only in 8 fetuses from 13 uteri measuring more than 14 cm, antibodies against PPV were detected. From the results obtained, it is concluded that PPV is capable to infect the embryos or fetuses on different stages of gestation in pregnant sows, and also that PPV can affect just some piglets in the same uterus causing different clinical manifestations.

REFERENCES

1. Hunter RHF, Physiological factors influencing ovulation, fertilization, early embryonic development and estabishment of pregnancy in pigs. Br Vet J 1977;133:461-470.

2. Dhindsa DS, Dziuk PJ. Effect on pregnancy in the pig after killing embryos or fetuses in one uterine horn in early gestation. Anim Sci 1968;27:122-126.

3. Dhindsa DS, Dziuk PJ. Influence of varying the proportion of the uterus occupied by embryos on maintenance of pregnancy in the pig. J Anim Sci 1968;28:668-672.

4. Hebert B, Dubuc R, Bergeron J, Marsolais G, Tijssen P. Molecular basis of pathogenesis and tropism differences among porcine parvovirus strains. Proceedings of the 14^th Congress International Pig Veterinary Society; 1996 July 7-10; Bologna, Italy. Bologna, Italy: International Pig Veterinary Society, 1996:122.

5. Mengeling WL. Porcine parvovirus. In: Leman AD, Glock RD, editors. Diseases of swine. Ames (IA): Iowa State University Press, 1981:352-365.

6. Bergeron J, Jetté R, Montpetit C, Marsolais G, Descoteaux JP, Tijssen P. Specific detection of porcine parvovirus strains. Proceedings of the 12^th International Pig Veterinary Society Congress; 1992 August 17-20; The Hague, Netherlands. The Hague, Netherlands: International Pig Veterinary Society, 1992:99.

7. Lenghaus C, Forman AJ, Hale CJ. Experimental infection of 35, 50 and 60 day old pig foetuses with porcines parvovirus. Austr Vet J 1978;54:418-422.

8. Lucas MH, Cartwright SF, Wrathall AE. Genital infection of pigs with porcine parvovirus. J Comp Path 1970;84:347-350.

9. Mengeling WL. Porcine parvovirus: frequency of naturally occurring transplacental infection and viral contamination of fetal porcine kidney cell cultures. Am J Vet Res 1975;36:41-44.

10. Mengeling WL, Paul PS. Reproductive performance of gilts exposed to porcine parvovirus at 56 or 70 days of gestation. Am J Vet Res 1981;42:2074-2076.

11. Sandri GP. Porcine parvovirus (PPV) vaccination of sows, a field trial. 12th Proceedings of the 12^th International Pig Veterinary Society Congress; 1992 August 17-20; The Hague, Netherlands. The Hague, Netherlands: International Pig Veterinary Society, 1992:100.

12. Mengeling WL, Cutlip RC. Reproductive disease experimentally induced by exposing pregnant gilts to porcine parvovirus. Am J Vet Res 1976;37:1393-1400.

13. Vannier P, Cariolet R, Tillon JP. Serological survey of a PPV infection in a pig herd. Circumstances of the onset of the reproductive disorder: Proceedings of the 7^th International Pig Veterinary Society Congress; 1982 July 26-31; Mexico (DF). Mexico (DF): International Pig Veterinary Society 1982:190.

14. Chaniago TD, Watson DL, Owen RA, Johnson RH. Immunoglobulins in blood serum of foetal pigs. Austr Vet J 1978;54:30-33.

15. Gjsedal F. Age determination of swine foetus. Acta Vet Scan 1972;40:1-29

16. Brugh M Jr. A simple method for recording and analysing serogical data. Avian Dis 1978;22:362-365.

17. Fisher RA, Yates F. Statistical tables for biological, agricultural and medical research. 6^th ed. England (UK): Longman Harlow, 1974.

18. Mengeling WL, Cutlip RC. Pathogenesis of in utero infection: experimental infection of five week-old porcine fetuses with porcine parvovirus. Am J Vet Res 1975;36: 1173-1177.

19. Joo HS, Donaldson-Wood CR, Johnson RH. Rapid diagnostic techniques for detection of parvovirus infection in mummified foetues. Austr Vet J 1976;52:51.

20. Musilova J, Kubicek O, Kubickuva S. Porcine parvovirus-diagnosis by using DNA probe. Proceedings of the 12^th International Pig Veterinary Society Congress; 1992 August 17-20; The Hague, Netherlands. The Hague, Netherlands: International Pig Veterinary Society, 1992:98.

21. Mengeling WL, Paul PS, Brown TT Jr. Trasplacental infection and embryonic death following maternal exposure to porcine parvovirus near time of conception. Arch Virol 1980;65:55-62.