1,721,004 research outputs found
Effects of feeding different lipid sources on hepatic histopathology features and growth traits of broiler chickens
Full text linkThe effects of different dietary lipid sources on growth traits and hepatic histopathology of broiler chick-ens were investigated. Hubbard strain one-day old chickens (n = 120) were kept in pens and were fedone of the three corn-soybean meal-based diets until 49 days of age. The dietary treatments consisted of2.5% added oil or fat from three sources as follows: SFO diet containing sunflower oil; LRD diet containinglard, and EVOO diet containing extra-virgin olive oil. Dietary oil or fat type improved significantly bodyweight and gain as well as feed efficiency in birds fed EVOO compared to those fed the other treatments.Based on our findings, after the whole experimental feeding period it was possible to observe relevantinjuries to the liver of the chicks fed with lard, whereas the hepatic histopathological changes appearedless marked or absent in the chicks fed vegetable oils from sunflower or olive. Thus, we can conclude thatdietary lipid source affected chicks performance and hepatic histopathology especially when chicks feddiet containing animal fats; whereas feeding extra-virgin olive oil supported positively growth traits anddid not result in hepatic histopathological effects
From the tropics to the Adriatic: Coolia Monotis Meunier, Ostreopsis Lenticularis Fuknyo andproracentrum mexicanum tafall, toxic algae in sea water and marine organisms along the coasts of provincia Bari
No full textCyclooxygenase – 1 and – 2 Expression Urothelial Carcinomas of the Urinary Bladder in Cows
No full textAnatomo-pathological consequences of Mycotoxins contamination in rabbits feed
No full textMycotoxins are secondary metabolities produced by certain filamentous microscopic fungi, which occur naturally in the environment and may persist in animal feed. In addition to the pathological effects associated with gross and histological changes, a mycotoxin contaminated diet may lead to feed refusal, poor feed conversion and diminished body weight gain which are responsible for great economical losses.The present review summarizes the pathological lesions caused by the most widespread mycotoxins, aflatoxins and ochratoxin, potentially hazardous ingredients of rabbit feed
In vitro elicitation of intestinal immune responses in teleost fish: Evidence for a type IV hypersensitivity reaction in rainbow trout
No full textIn fish the gut immune system has been the subject of few investigations until now. Here, we provide novel morphological and immunological data on the gut isolated from rainbow trout Salmo gairdneri. The pyloric (P) and terminal (T) segments of trout gut, when morphologically examined, evidenced lymphocytes and macrophages (MO) loosely dispersed in the intestinal mucosa and in the lamina propria in the absence of typical Peyer's patches-like structures. Furthermore, incubation of P and T sections with Candida albicans (Ca) and functional analysis of supernatants generated some interesting results. In fact, active supernatants, when compared with controls, exhibited cytokine-like activities attributable to the presence of interferon (IFN)-gamma and migration inhibiting factor (MIF), respectively. In particular, IFN-gamma-like activity gave rise to an enhancement of Ca phagocytosis by MO, whereas MIF inhibited MO migration in agarose. Taken together, these in vitro data suggest that the gut-associated lymphoreticular tissue in fish possesses the appropriate armamentarium to mount a type IV hypersensitivity response when challenged by microbial antigens.In fish the gut immune system has been the subject of few investigations until now. Here, we provide novel morphological and immunological data on the gut isolated from rainbow trout Salmo gairdneri. The pyloric (P) and terminal (T) segments of trout gut, when morphologically examined, evidenced lymphocytes and macrophages (MØ) loosely dispersed in the intestinal mucosa and in the lamina propria in the absence of typical Peyer's patches-like structures. Furthermore, incubation of P and T sections with Candida albicans (Ca) and functional analysis of supernatants generated some interesting results. In fact, active supernatants, when compared with controls, exhibited cytokine-like activities attributable to the presence of interferon (IFN)-γ and migration inhibiting factor (MIF), respectively. In particular, IFN-γ-like activity gave rise to an enhancement of Ca phagocytosis by MØ, whereas MIF inhibited MØ migration in agarose. Taken together, these in vitro data suggest that the gut-associated lymphoreticular tissue in fish possesses the appropriate armamentarium to mount a type IV hypersensitivity response when challenged by microbial antigens. Copyright © Informa Healthcare
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