This study was conducted because of influence of prebiotics (alphamune) and symbiotic (biomin) on histometrical development of small intestine and lymphatic tissue of caecal tonsil have been not reported on broiler chicken. In this study, different parts of small intestine and caecal tonsil, which is a major area of gut associated lymphatic tissue (GALT) in chicken were selected. One hundred an...

Background: Bacterial diseases in cultured fish are considered the main problem to aquaculture system. Skin is the structure that covers the body in fish. Skin histopatological alterations were used to assess the effects of Aeromonas hydrophila exposure on the yellowfin seabream )Acanthopagrus latus(. Methods: In this regard, 90 A. latus were exposed to sublethal concentrations of A. hydrophil...

background: the main part of ovary is consisted of follicles which certain drugs may cause change in them. objectives: the purpose of this study was to investigate the effects of methylphenidate on ovarian follicle of mice, treated by ritalin before puberty. methods: 40 immature female mice at 3 weeks of age were divided into 4 groups, consisting of one control and 3 experimental groups. the ex...

in this research,  300  pairs of lymph nodes; prescapular, prefemoral and popliteal were collected from lori – bakhtiari sheep in shahrekord abattoir. the specimens divided in two age groups (6 -12 month and 13 – 18 months) and then length, width and thickness of them were recorded using by caliper. for histological studies, lymph nodes were processed through routine tissue preparation techniqu...

in this research thirty specimens of duodenum of lori-bakhtiari sheep from abattoir were collected. the specimens were selected from male healthy sheep and aged 1 years. after collecting them and determining of three parts of duodenum (cranial, descending and ascending parts), the lengths of them were measured. for histological studies, each part of duodenum divided to two centimeter pieces and...

the major lymphoid tissues in teleost fish are the kidneys, thymus, spleen and mucosa-associatedlymphoid tissue including the skin, gills and intestine. the head of kidney (pronephros) is an importanthaematopoietic organ and has morphological similarities with the bone marrow in higher vertebrates. in thisstudy, during 12 months from august 2002 to july 2003, 120 grass carp (10 fish/month) were...

benign prostatic hyperplasia (bph) is a common disease in human that gradual overgrowth of the prostate gland leads to impinge on the urethra with impairment in urinary function. numerous plants improve uncontrolled growth of the prostate gland and improve urinary tract symptoms associated with bph. in this study, 25 healthy adult male wistar rats were divided randomly in five groups: g1 (contr...

esophagus having different tissues has a special role in the gastrointestinal tract. among different species, layers of the esophagus, have a substantial difference. also, diameter of esophagus varies in different parts of it.the information of histological structure of rabbit and guinea pig esophagus is still incomplete. therefore, the present study was conducted. therefore, for review and com...