JOURNAL OF VETERINARY CLINICAL RESEARCH
Year:2011 | Volume:2 | Issue:4 (8)|Papers Count:8

The objective of this experiment was to compare the reproductive efficacy and cost-effectiveness of management program involving timedAI after Presynch-Ovsynch protocol (PO) with insemination at detected estrus. PO protocol is used to increase pregnancy rate and decrease days open and culling for sub-fertility. According to different results of some investigations on the efficacy of this protocol this study was designed to re-evaluate this protocol.In this experiment, 808 dairy cows of a commercial dairy herd in Tehran, randomly allotted to 2 experimental groups: Control group (n: 404) and treatment group (n: 404). Cows in the treatment group synchronized with the PO protocol. In control group artificial insemination has been done after observation of estrus based on AM-PM rule. Statistical analysis showed that Days Open in treatment group was significantly better than control group (P=0.0005). Conception rate did not differ significantly between the PO and control groups (P>0.05). First service conception rates were lower in cows synchronized (31.2% vs.36.4%). At 200 Days in Milk fewer cows in control group were pregnant than cows in PO group (74.5% vs.86.63%) (P<0.05). The results of this study demonstrated that PO program can improve days open and reproductive performance. Days open and culling rate were the major cost factor and PO protocol was economically superior.

Parkinson's disease is a neuropath logical disorder involving the degenaration of dopamineric of subestancia nigra. The loss of dopaminergic neurons results in complex motor syndrome. In this study the neuroprotective effect of Petroselinum hortense Hoffm aqueous extract in a 6-hydroxydopamine-induced parkinson's disease model in rats were investigated. 72 male Wistar rats were divided into 6 groups: (1) Sham (normal saline was injected in the left SNC), (2) 6-OHDA (injection of 6-hydroxydopamine into left SNC), (3) 6-OHDA+captopril (5 mg/kg), (4) 6-OHDA+Petroselinum hortense (5 mg/kg), 6-OHDA+Petroselinum hortense (20 mg/kg) and 6-OHDA+Petroselinum hortense (100mglkg). Petroselinum hortense extracts or captoprils was daily injected intra-peritonialy, since6 days before surgery to 1 day after modeling operation.The behavioral test (Quantitation of rotational behavior) and histopathological study was assessed 2 weeks after the lesion. The results suggested that the use of Petroselinum hortense aqueous extract could prevent the progress of behavioral symptom and dopaminergic neurodegeneration related to parkinson's disease induced by 6-hydroxydopamine in rats models.

The composition of the diet can influence morphological features of intestines which may lead to changes in digestion and absorption of nutrients. The present study evaluates the histomorphometric changes of small intestine due to soy bean meal single feeding in adult cocks. Twenty, 70-week-old, healthy Road Island Red cockerels were purchased and after a week of adaptation, divided into 2 equal groups and fed either soy bean meal or control diet. Feeding was gradually and by adding the experimental food to the commonly used diet through 16 days and then fed only with experimental diets for 21 days. At the end of second period of treatment, all animals were weighted and sacrificed. Small intestine was removed from the bodies immediately after death; transverse sections were successively cut with 2cm intervals and fixed in 10% buffered formalin. The sections were stained with Hematoxillin-Eosin and PAS, then studied under light microscope. Height and width of villi and depth of crypts were measured by linear graticule. Goblet cell number per unit area was counted by a lattice graticule.Data were analyzed using Student's t-test. The result showed that, Number of goblet cells and crypt depth of duodenum, as well as villus height and crypt depth and goblet cells number in the jejunum increased significantly, while villus height in the ileum decreased significantly in soy bean fed cocks as compared to control. In conclusion, soy bean meal could be used as a single feed with high protein content for cocks.

This research was conducted in 1389 on 10 trout rearing farms in West Azarbaijan province. Five examination groups were considered respectively, according to their weight range: (1-5), (5-20), (20-150), (150-300) and up to 1000 grn. (breading fish) randomly caught and examined. Carbohydrate percentage of feed samples which used in these farms (starter, fingerling, grower, market and breeding) respectively: (14±0.8), (19.1±0.8), (21±0.9), (24±0.8), (24±1) was calculated with weight percentage method. Hepatosomatic index (HSI) was determined in all of the specimens. Percentage of relative liver weight to total fish weight in examination group was calculated.This ratio of the weight groups was respectively: (10.8±0.05), (1.5±0.02), (1.8±0.09), (1.92±0.05) and (2.3±0.06).Statistical analysis shows significant increase in liver weight from fingerling to breading (p<0.05). Microscopic observations revealed degenerative changes in hepatocytes, including cloudy swelling and appearance vacuoles of glycogen in liver cells in test groups particularly in breading fish.No obvious changes observed in larval group (group examl). This survey continued with 15 breeding fish (exam group5) for four weeks in a controlled condition. This group cultured with the half amount of daily feed required with diet containing (12±1 %) of Carbohydrate in water with temperature range of 11±1 oc. Histopathological examination of this group in which were fed with lower levels of carbohydrates did not revealed any change in cumulative lesions of liver glycogen than those fed with high level of carbohydrate.

The present investigation was performed in order to determine the tick species of sheeps in Qazvin province, from Octobr 2009 to September 2010. Overall 1800 sheeps of both sexes were examined for tick infestation. Results showed that 63 sheeps (3.5%) were infested by ticks. The highest percentage of tick infestation was observed during june 2010, while the lowest percentage was observed during February 2010. During the study, 228 ticks collected from sheeps and the identified species were Rhipicephalus bursa (22.37%), Rhipicephalus sanguineus (11.84%), Dermacentor marginatus (16.23%), Hyaloma anatolicum anatolicum (10.53%), Hyaloma asiaticum asiaticum (4.82%), Hyaloma anatolicum excavatum (13.6%), Hyaloma marginatum marginatum (15.35%), Haemaphisalis punchtata (1.36%) and Haemaphisalis sulcata (3.95%).Distribution of ticks over different parts of the body surface according to their frequency were 24.12% on Ear and surrounding areas, 42.11% on tail region, 19.74% on inguinal region and 14.03% on axillary region.

The purpose of this study was to determine the bacterial contamination of urine in apparently healthy Azerbaijani buffalos brought to Urmia abattoir, Iran. A total of 120 urine samples were taken directly from bladder of slaughtered Azerbaijani buffalos (62 male, 58 female). Females divided into two age groups: under 3 years of age (n=36) and above 3 years of age (n=22). The samples were inoculated on MacConkey and blood agars and examined for aerobic bacteria. Results show that, only 8 out of the 120 urine samples (6.67%) were positive for bacterial growth. The isolated bacteria were Staphylococcus intermedius in 3 samples (37.5%), Bacillus cereus in2 samples (25%), Bacillus subtilis in 2 samples (25%), Escherichia coli in 2 samples (25%) and Pseudomonas aeruginosa in 1 sample (12.5%). Regarding urine contamination, there were no significant differences neither in sex nor in age between groups (p>0.05). The result of this study showed that bacterial contamination of urine can occur in clinically normal Azerbaijani buffalos.

Rhabdomysarcoma is a neoplasia that arising skeletal muscles. This tumor is rarely found in domestic animals.In spring 2011, cadaver of a 4 year-old female doberman dog with history of weakness, anorexia, lethargy, respiratory distress and bradycardia was referred for autopsy. Sudden death was occurred while walking after 3 days intravenous administration of Gentamycin, Necropsy findings on macroscopic view revealed a large number of irregular yellowish-brown nodules with soft consistency with overall dimensions of 12x5x4 cm in the mediastinum area.On microscopic view, many large polyhedral neoplastic cells while has mitotic division, granular cytoplasm with infiltration of eosinophilic cells were visible. Immunohistochemistry studies, Tumor cells were positive reactions with desmin and vimentin markers. Tumor has metastasis to thelungs and kidneys. According to results of the histopathology and immunohistochemistry, rhabdomyosarcoma tumor was confirmed.According to our knowledge, this is the first report of a rare rhabdomyosarcoma tumor in the doberman dog in Iran.

There are many forms of congenital anomalies (malformations) in animals. In this reports, the clinical and radiological diagnosis of additional jaw is presented in a female Holstein calf that was referred to specialized veterinary polyclinic of Islamic Azad University of the Shahrekord. Lateral view radiography showed an additional lower jaw (mandible) with additional teeth and tongue which separated from the main jaw and no osseous connection with main jaw or other facial bones were seen. Patient returned to its normal life after surgical removal of abnormal ectopic mandible.