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1

The course and control of coccidiosis in goats

100%
Balicka-Ramisz A., Pilarczyk B., Osipowic V. S.
Annals of Animal Science
|
2004
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tom 04
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nr 1
2

Comparison of several methods to define the infection rate of honey bee colonies with chalkbrood

86%
Bienkowska M., Pohorecka K.
Pszczelnicze Zeszyty Naukowe
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1998
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tom 42
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nr 2
3

Variant abiotic factors and the infection of Fasciola gigantica larval stages in vector snail Indoplanorbis exustus

72%
Singh N., Kumar P., Singh D. K.
Journal of Biology and Earth Sciences
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2012
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tom 02
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nr 2
4
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Tan spot - the most harmful wheat leaf disease in Latvia

72%
Bankina B.
Acta Agrobotanica
|
2005
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tom 58
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nr 1
Tan spot (Pyrenophora tritici-repentis) is one of the most important wheat diseases in Latvia. Significant spreading of this disease was observed from 1998. Field experiments were carried out at the Research and Training Farm „Peterlauki” of the Latvia University of Agriculture, during 1998-2003. Development of diseases was observed on 14 winter wheat varieties, dynamics of development was investigated on 'Donskaja polukarlikovaja' and 'Stava'. Assessments of the disease severity were carried out on the upper three leaves each week from the start of stem elongation to full ripening. Tan spot was observed at the stage of stem elongation in 2003, and only after flowering in 1999. Increase of the disease severity was slow until stage of milk ripeness, and only in late stages of wheat development sharp increase of the disease was observed. Total rate of infection (through the session of vegetation) was very slow (0,01-0,19), but during ripening rate achieved 0,5-0,6. The main reason of so unequal development of the disease seems changes in amount of infection sources. Other possible reason of rapid increase of the disease development is the relationship between leaf age and susceptibility to the disease. Further research is necessary for better understanding of tan spot life cycle.
5

Studies on coccidiosis in cattle in North-West Poland

72%
Pilarczyk B., Balicka-Ramisz A., Ramisz A.
Electronic Journal of Polish Agricultural Universities. Series Animal Husbandry
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2000
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tom 03
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nr 1
The studies were carried out in the North -West part of Poland. The investigation was conducted on 292 specimens of the Holstein cattle with added 50% of HF.The extensity and intensity of the coccidia infection were determined by means of the Willis-Schlaaf's and McMaster's methods. Six species of coccidia were found : E. bovis, E. auburnensis, E. zürni, E. ellipsoidalis, E. subspherica and E. cylindrica. Twenty seven per cent of dairy cows and 49.6 per cent of calves were infected . Number of oocysts per gram of feces in calves ranged form 333 to 2237. Observations on the dynamics of the coccidia invasion in calves during a yearly cycle exhibited the existence of two peaks; a vernal and an autumnal ones.
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