خيارات البحث
النتائج 51 - 60 من 669
Determination of clostebol residues in the urine of slaughter animals using liquid chromatography–tandem mass spectrometry النص الكامل
2024
Matraszek-Żuchowska Iwona | Kłopot Alicja | Grzelak Justyna | Zdonek Paulina
Synthetic anabolic hormones, which may pose a potential risk to human health, should not be used in fattening food-producing animals. Because of the hormonal effects they cause, growth-promoting compounds are banned by legislation in the EU for use in animal husbandry. Consequently, all EU member states are required to conduct monitoring tests on the content and residues of these compounds in prescribed biological matrices to ensure the safety of food consumers. The aim of this research was to develop a liquid chromatography–tandem mass spectrometry method for the detection of the residue of one such anabolic hormone, clostebol in food animal urine.
اظهر المزيد [+] اقل [-]Fatal Sarcoptes scabiei and Demodex sp. co-infestation in wolves (Canis lupus) at the Białowieża National Park, Poland – is it a consequence of climate change? النص الكامل
2024
Krzysiak Michał K. | Świątalska Agnieszka | Plis-Kuprianowicz Elwira | Konieczny Andrzej | Bakier Sławomir | Tomczuk Krzysztof | Larska Magdalena
In winter 2021/2022, a wolf population in the primeval Białowieża Forest in Poland was struck by an outbreak of severe mange caused by mixed infestations of Sarcoptes and Demodex mites. We present an epidemiological analysis of this mange which caused significant morbidity and mortality.
اظهر المزيد [+] اقل [-]Distribution and neurochemical characterisation of neurons containing neuregulin 1 in the enteric nervous system within the porcine small intestine النص الكامل
2024
Puchała Łukasz | Gonkowski Sławomir | Rytel Liliana | Wojtkiewicz Joanna | Grzegorzewski Waldemar Jarosław
The enteric nervous system (ENS) in the wall of the gastrointestinal tract is complex and comprises many neurons, which are differentiated in terms of structure, function and neurochemistry. Neuregulin 1 (NRG 1) is one of the neuronal factors synthesised in the ENS about the distribution and functions of which relatively little is known. The present study is the first description of the distribution of NRG 1 in the ENS in various segments of the porcine small intestine.
اظهر المزيد [+] اقل [-]Application of a liposomal subunit vaccine in chickens for reduction of Campylobacter gut colonisation النص الكامل
2024
Łasica Anna | Godlewska Renata | Gubernator Jerzy | Jakubiak-Augustyn Anna | Majewski Paweł | Wyszyńska Agnieszka
Campylobacter are the most common cause of food poisoning, which manifests itself in diarrhoea of varying severity. Additionally, because of the increasing number of people with immune deficiencies, more frequent serious complications of Campylobacter infections are being observed. The main source of infection is the consumption of contaminated poultry meat, which is a consequence of the insufficiency of current hygiene and biosecurity to control Campylobacter or eliminate it from the poultry food chain.
اظهر المزيد [+] اقل [-]Analysis of the role of Dirofilaria repens macrophage migration inhibitory factors in host–parasite interactions النص الكامل
2024
Karabowicz Justyna | Długosz Ewa | Bąska Piotr | Pękacz Mateusz | Wysmołek Magdalena Elżbieta | Klockiewicz Maciej | Wiśniewski Marcin
Dirofilaria repens is a zoonotic parasitic filarial nematode that infects carnivores and occasionally humans. Knowledge of the host–parasite molecular interactions enabling the parasite’s avoidance of the host immune response in subcutaneous dirofilariasis remains limited. Parasitic orthologues of host macrophage migration inhibitory factor (MIF) are molecules potentially involved in this process.
اظهر المزيد [+] اقل [-]Effect of central administration of indomethacin on anandamide-induced GnRH/LH secretion in the hypothalamus of anoestrous ewes النص الكامل
2024
Tomaszewska-Zaremba Dorota | Tomczyk Monika | Wojtulewicz Karolina | Bochenek Joanna | Pałatyńska Kinga | Herman Andrzej Przemysław
It is suggested that cannabinoids (CBs) may disturb reproduction through action on hypothalamic gonadotropin-releasing hormone (GnRH) neurons directly or indirectly through intermediates such as prostaglandins. The study aimed to determine the influence of intracerebroventricular (i.c.v.) injection of the endogenous cannabinoid anandamide (N-arachidonoylethanolamine – AEA), alone or with the prostaglandin synthesis inhibitor indomethacin (IND), on GnRH/luteinising hormone (LH) secretion. The purpose of the research was to clarify the role of endocannabinoids and their interaction with prostaglandins in the regulation of reproduction at the level of the hypothalamus and pituitary in anoestrous sheep.
اظهر المزيد [+] اقل [-]Murine hepatic proteome adaptation to high-fat diets with different contents of saturated fatty acids and linoleic acid : α-linolenic acid polyunsaturated fatty acid ratios النص الكامل
2024
Liput Kamila P. | Lepczyński Adam | Poławska Ewa | Ogłuszka Magdalena | Starzyński Rafał | Urbański Paweł | Nawrocka Agata | Jończy Aneta | Pierzchała Dorota | Pareek Chandra S. | Gołyński Marcin | Woźniakowski Grzegorz | Czarnik Urszula | Pierzchała Mariusz
Some health disorders, such as obesity and type 2 diabetes, are associated with a poor diet and low quality of the fat in it. The type and duration of the diet have an impact on the liver. This investigation uses the proteomic approach to identify changes in the mouse liver protein profile in adaptation to high-fat diets with different saturated fatty acid contents and linoleic acid (18:2n-6) to α-linolenic acid (18:3n-3) fatty acid ratios.
اظهر المزيد [+] اقل [-]The Effects of Propolis-Incorporated Nanofibers Produced by the Electrospinning Method on Skin Wounds in Rats النص الكامل
2024
Bulut, Osman | Sorucu, Ali | Dümbek, Tolga Meriç | Avcı, Zehra
Electrospinning is a widely used process in various industries to create polymeric fibers with unique properties. In the context of wound healing, electrospun nanofibers can mimic the extracellular matrix structure, promote tissue regeneration, and enhance the wound healing process. Propolis, a natural substance with various biological properties, has shown potential in promoting healthy skin and wound healing. It has antioxidant, anti-inflammatory, antibacterial, antifungal, and antiviral effects. The study was conducted on male Wistar albino rats. The rats were divided into three group. The nanopropolis group received nanopropolis applied once daily, while the ethanol extracted propolis group received applied once daily. The control group did not receive any application after the wound was formed. The researchers evaluated the wound sizes throughout the study period. Macroscopically, a gradual healing was observed in all three groups. On the 11th day, the wounds in the nanopropolis and propolis groups healed completely, while the wounds in the control group healed on the 14th day. When the wound sizes were analyzed, the nanopropolis group showed a significant decrease in wound size compared to the control group. Histopathological analysis was performed on the wound samples collected at the end of the study. Microscopically, it was observed that the epidermis layer was more regular in the propolis and nanopropolis groups compared to the control group. In conclusion, the results of this study suggest that propolis-incorporated nanofibers produced by electrospinning (nanopropolis) have a positive effect on wound healing compared to propolis alone and the control group. The nanopropolis group showed a significant reduction in wound size and improved histopathological parameters. These findings highlight the potential of nanopropolis in promoting wound healing and tissue regeneration.
اظهر المزيد [+] اقل [-]Poisoning Plants in Cats and Dogs النص الكامل
2024
Dural, Ebru | Ince, Sinan
Today, cats and dogs are common pets among domestic animals. These animals are exposed to many diseases or poisonings in their lives. In cases of poisoning, plants have an important role. In this respect, it should not be forgotten that plants at home or outside can cause poisoning in animals. In this review, some plants that can pose a potential danger to cats and dogs, their properties, and the treatment options that can be made with clinical signs in case of poisoning are mentioned.
اظهر المزيد [+] اقل [-]Possibility of Using Bee Bread (Perga) as an Alternative Feed Additive in Poultry Nutrition النص الكامل
2024
Gümüş, Fatih | Karslı, Mehmet Akif
Livestock industry has an indispensable position in providing a source of protein for humans. It is vital for the future of humanity to produce healthy animal products for the needs of the increasing world population and to offer them for consumption day by day. However, so as to meet the request of animal products rapidly, industrialization has been increased by developing mass production methods, these changes in the sector have worried by some consumers and reservations have even increased with disinformation. Depending on this possible food safety and public health concern, people have become conscious of nutrition with natural products in progress of time and new searches have been embarked. On the other hand, due to the prohibition of the inclusion of antibiotics as feed additives in animal nutrition diets, alternative feed additives to antibiotics have been researched in order to increase performance and eliminate diseases. The fact that the quality and health of products such as meat, milk, eggs obtained from livestock are directly related to nutrition provides a better understanding of the value of feed and feed additives. Indeed, it is seen that the popularity of honey bee product bee bread, which has been known to be used as a curative product since ancient times, has increased in recent years in treatment with bee products called apitherapy. Concordantly, the use of bee bread as an alternative feed additive in animal health and nutrition has become increasingly common in recent years. In this review, it is aimed to give information about the possibility of using bee bread (perga), which has been shown by scientific studies to be natural and rich ingredient, as an alternative feed additive in poultry nutrition.
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