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Adrenergic and cholinergic innervation of the chicken pancreas

100%

Ulas M. , Penkowski A. , Lakomy M.

Folia Morphologica

2003

tom 62

nr 3

243-246

The distribution, as well as the morphological characteristics of adrenergic and cholinergic nerve fibres was studied in the pancreas of the hen and the cock. The presence of numerous adrenergic and moderately numerous cholinergic structures was revealed in the organ. They were seen as nerve fibre bundles or single nerve fibres located in the vicinity of blood vessels and exocrine ducts, as well as the cells of the exocrine and endocrine pancreas. Single TH- and ChAT-positive nerve cell bodies were also found in the organ under study.

The effect of a feeding and rearing system on the physicochemical properties of pork

75%

Karpiesiuk K. , Kozera W. , Bugnacka D. , Penkowski A. , Falkowski J. , Wozniakowska A. , Jarocka B.

tom 24

nr 3

The effect of increased ozone concentrations in the air on selected aspects of rat reproduction

75%

Jedlinska-Krakowska M. , Gizejewski Z. , Dietrich G. J. , Jakubowski K. , Glogowski J. , Penkowski A.

Polish Journal of Veterinary Sciences

2006

tom 09

nr 1

Five-month-old male rates were exposed to 0.5 ppm ozone for 50 days, 5 hours a day. A week before the completion of ozone exposure, a biological test was performed to determine the fertilization rate and the survival rate of newborns in both ozone-exposed and control animals. After 50 days, the rats were sacrificed with an overdose of halotane, and testes were collected to assess the morphology and motility of spermatozoa. Neither the morphology of spermatozoa nor motility parameters determined by the CASA (computer-assisted sperm analysis) system showed statistically significant differences between ozone-exposed and control males. The number of successful matings and the survival rate of newborns per litter within one year postpartum were also similar in both groups. However, sperm concentration was by 17% lower in ozone-exposed rats, compared with the control animals.