جستجوی مقالات مرتبط با کلیدواژه « بره » در نشریات گروه « دامپزشکی »

The aim of this study was to evaluate the use of Artemisia leaves on yield, hematological parameters and worm infestation. For this purpose, 20  female Kurdish lambs with average weight of 30±5 kg and 5-6 months old were used in a completely randomized design with 2 treatments and 10 replicates for 30 days. Treatments were: 1- control (diet without artemisia), 2- basal diet + 20 g of artemisia, where artemisia was mixed with basal diet and given to the lambs of this group. In order to determine the effect of Artemisia leaves on hematological parameters and worm infestation, blood sampling and fecal sampling were performed on days zero, 15 and 30, respectively. The number of white blood cells on day 0 was the highest in the control treatment (P <0.05). The percentage of lymphocytes on the 15th day was significantly affected by the treatments and increased with the addition of artemisinin leaves (P <0.05). Also, with the addition of artemisinin leaves, the mean number of phagocytic masses on the 30th day increased significantly (P <0.05). On day 0, parasitic infection was highest in the control group (P <0.05) and with the addition of artemisinin leaves, worm parasites decreased numerically on the 15th and 30th days but were not significant. In general, the results showed that the addition of artemisinin increased the percentage of lymphocytes and the average number of phagocytic mass and was effective in reducing worm infection in the studied periods.

Hydrocephalus is a nervous system disorder characterized by increased intracranial pressure and head enlargement. Increased intracranial pressure is a direct consequence of fluid accumulation in the ventricular system. This condition can affect almost all animal species, including domestic animals such as cattle, sheep, goats, dogs, and cats.A lamb that was born by caesarean section and had hydrocephalus abnormality was evaluated biometrically and anatomically after dying in the dissection hall of the Faculty of Veterinary Medicine, as well as cerebrospinal fluid culture was evaluated in the department of microbiology and mycology.The results of this study showed that this abnormality did not have a bacterial or fungal cause, so it is very likely that it can be caused by the issue of nutrition and contamination in the feeding of the mother sheep, or a lack of micronutrients, or a viral factor.Cognitive and physical defects can occur as a result of hydrocephalus. The pathophysiology of hydrocephalus is unclear. While the circulation theory is widely accepted as a hypothesis for the development of hydrocephalus, there is a lack of sufficient proof in clinical situations and in experimental settings. However, there is increasing evidence that osmotic gradients are responsible for the water content of brain ventricles, similar to their presence in other water-permeable organs in the body. Therefore, brain disorders that result in excess macromolecules in the ventricular CSF alter the osmotic gradient and lead to hydrocephalus.

Investigation of cryptosporidiosis in lambs in Gonabad city, Khorasan Razavi provinceSummary Cryptosporidium is an enteric zoonotic protozoan that causes cryptosporidiosis in humans and animals. To investigate the infection of lambs in Gonabad city (located in the southeast of Khorasan Razavi province) with Cryptosporidium, fecal samples were collected from the rectum of 138 lambs of 5 to 60 days old from some sheep herds in different villages of this city. Stool samples were mixed with potassium bichromate 2.5% and transported in a cool box to the to the laboratory. Age, sex, breed, rectal temperature, presence of other animal species and herd size were recorded. Fecal smear was prepared and stained with modified Ziehl-Neelsen method. Results showed that 19 samples out of 138 were positive (13.8%). There was no statistically significant difference between the protozoan infection with age, sex, fecal consistency, body temperature, breed and herd density (P>0.05).This study showed that the prevalence and intensity of Cryptosporidium infection in Gonabad city is significant, so this parasite should be considered a potential threat to the livestock economy and human health.

The purpose of this project is to investigate the genetic resistance of Ghezel and Ghezel-Romanov lamb to gastrointestinal parasites in East Azerbaijan province. For this study, were used 10 male and female Ghezel lambs and 10 male and female Ghezel-Romanov lambs. The anti parasitic drug was administered on day of the test and then 2 weeks later. The studied traits included: Famacha test, hematocrit test, fecal score and number of nematode eggs per gram of feces. Data were analyzed using SAS software in a completely randomized design. The results showed that the Famacha test was significant in male and female Ghezel and Ghezel-Romanov mixed breeds (p<0.05). number of nematode eggs in male and female Ghezel-Romanov lambs had a significant decrease compared to Ghezel lambs (p<0.05). number of parasite eggs in Ghezel-Romanov lambs was lower than Ghezel breed, in which male Ghezel-Romanov lambs had the lowest number of parasite eggs (16.2) (p<0.05). Crossbreeding of Ghezel and Romanov increases the relative resistance to gastrointestinal nematodes in terms of traits measured in this study.

In March 2020, three 5-15 day old mixed breed lambs were referred to the University of Tehran Veterinary Hospital. The farmer complained of 20% mortality rate (42 heads) in 4-17 day old lambs of his flock that they were exclusively breastfed. In observation and clinical examination, recumbency, depression, weakness, 40 ° C temperature ,abomasal dilation with fluid, tachypnea, tachycardia and hyperemia of the mucosa were recorded. After clinical examination, the lambs were examined by hematology and then necropsied under sterile conditions. In hematologic examination, normocytic-normochromic anemia, leukopenia, lymphopenia, left shift, the presence of schistocytes, keratocytes, myelocytes and metamyelocytes were observed. In necropsy, there were abomasal petechiae hemorrhages, coffee grain-like blood masses in the contents of the abomasum and pale kidneys. The direct gram smear from the abomasum had a large number of positive gram rods. All organs were subjected to aerobic and anaerobic bacterial cultures. Clostridium perfringens type A and non-pathogenic E coli were isolated from the abomasum and intestine of patients. The highest antibiotic susceptibility of Clostridium perfringens A isolate was to ceftiofur and ceftriaxone antibiotics. This study showed that Clostridium perfringens A may be involved in the pathogenesis of abomasitis in lambs. . . . . . .

This study was conducted to investigate the hematological and biochemical changes caused of Eimeria ahsata during to 42 days of post-infaction. Twelve Lori-Bakhtiari lambs were provided and randomly divided into the Two groups after confirmation of their healthy. The animals in the experiment group were orally infected with 1× 10 5 sporulated oocysts Eimeria ahsata. From day 7 post-infection, the faeces were sampled separately on a daily basis and the number of oocysts per gram of faeces (OPG) were counted by McMaster method and were recorded for each lamb. The blood sampling recording was done on days 7, 14, 21, 28, 35 and 42 post-infection. The blood samples containing EDTA were examined for hematological and sample without EDTA, after centrifugation and isolation of serum, were examined for analysis of the biochemical parameters. The serum levels of ALB (Albumin), ALP (alkalin phosphatase), ALT (alamin aminotransferase), AST (aspartate aminotransferase), GGT (gamma glutamyltransferase), PRO (protein total) and CBC (Cell Blood Counter) were measured. the highest rate of oocyst excretion was observed in 32-33 days after infection. The CBC findings indicated that the mean number of lymphocytes and neutrophils were increased in the infected group compared to the control group on day 28 post-infection and The activity of ALB, ALP, ALT, AST, GGT enzymes as well as PRO showed no significant different between two groups Based on the results of the present study. Amongst the hematological, biochemical factors and OPG and CBC only showed significant difference between the control and the infected groups.

Small ruminants are one of the main sources of income for rural farmers. Nutrition is one of the most important factors affecting income sustainability in this industry.  This study was designed to investigate the effects of different level of Bio-Rumina as a probiotic supplement on performance, growth and blood metabolites of Farahani lambs. Lambs were divided into three groups including: Group 1: control (no supplementation ), treatment 1: one gram of Bio-Rumina supplementation (low level), treatment 2: two gram of Bio-Rumina supplementation (high level).The results of this study showed that high level of Bio-Rumina supplementation had negative effects on serum concentration of liver enzymes (alkaline phosphatase) and glucose. These effects were similar to Hormesis (biphasic) effects  which lambs receiving Bio-Rumina in high level had lower average daily gain, final body weight and feed efficiency compared with other groups. However, low level of Bio-Rumina supplementation had  positive effects on the final body weight of the lambs. In general, Bio-Rumina supplementation in low level could improve performance and final body weight in Farahani lambs.

Transfer of immunoglobulin from mother to baby through placenta or colostrum is called passive transfer (PT). The ruminant placenta is a syndesmochorial type and is a barrier against the transfer of maternal immunoglobulins from the blood to the infant. Therefore, in ruminants, the inability to transmit colostrum immunoglobulins is called Failure of Passive Transfer (FPT). This study aimed to determine the percentage of FPT in lambs and kids in Garmsar County and the effect of factors such as race, gender, mother's age, mother's parturition and type of livestock (lamb or kid) on FPT. This study was performed on 101 healthy 2-4 day-old lamb and kid in 10 herds of sheep and goats in Garmsar County. After examination, confirmation of clinical health, sex, age, race, birthday time, number of mothers, parturition, maternal age and newborn weight, 3 ml of sterile blood was obtained from the jugular vein. These samples were immediately referred to the lab in without anticoagulant tube and adjacent to the ice. The biuret method and Zn-sulfate turbidity test were determined on the level of total protein and immunoglobulin G serum. The results of this study revealed 50/50% occurrence of FPT in the lambs and kids understudy, the relationship between race and sex with the incidence of FPT, and the lack of relation between maternal age, mother's parturition and type of livestock with the incidence of FPT.

Abomasal hypomotility plays an important role in pathogenesis of some abomasal disorders such as abomasal bloat which has the same serious side effects associated with using synthetic drugs for its treatment, such as diarrhea and antibiotic resistance. To decreasing these side effects, administration of herbal medicine is a good way.

To determine the effect of oral administration of turmeric aqueous extract on rate of abomasal emptying rate in neonatal lambs.

This study was conducted on twelve five-day-old Sangsari-female-lambs (average weight 3 kg). All lambs received five oral treatments, including saline (30 ml), erythromycin (400 mg), turmeric 200 mg/kg, turmeric 250 mg/kg, and turmeric 300 mg/kg, respectively. At 0, 30, 60, 90, 120, 150, 180, and 240 minutes after each treatment, plasma samples of lambs were taken. The rate of abomasal emptying was determined with acetaminophen absorption test.

Treatment with erythromycin and three different doses of aqueous extract of turmeric (200, 250, 300 mg/kg) increased the rate of abomasal emptying in comparison to the negative control treatment, significantly (P<0.05). The stimulatory effect of erythromycin on abomasal emptying was higher than aquatic extract of turmeric, significantly (P<0.05). No clinical side effects were observed following the administration of erythromycin and turmeric in lambs.

This study showed that aqueous extract of turmeric has a stimulatory effect on lamb's abomasal emptying but more studies are needed on the effect of this plant’s components on abomasal emptying.

Pica is one of the disorders that has high potential for inducing various damages such as poisoning, digestive accumulation, botulism, weakening of the immune system, weight loss, etc. in ruminants farms and for years, the researcher has encountered this problem in lambs. The present study was conducted to compare the effect of Microvit supplementation and Ferrodrop oral drops on the primary parameters of homogram and serum minerals in 20-days-old healthy and with Pica lams. This clinical trial was performed on 10-headed 20-days-old lambs mixed-breed without Pica and 10-headed 20-day-old lambs mixed-breed with Pica. Both groups received 2 types of oral therapy including Microvit supplementation (7 days, 0/5 g / l of consuming water) and oral furuderap drops (4 days, 300 mg/day in consuming milk). Before starting treatment and after each treatment, blood and serum samples were taken from lambs and sent to the laboratory for determination of CBC and serum mineral elements. Data were analyzed by SPSS statistical software using repeated measures ANOVA at 95% confidence level. In patients with Pica blood Hb, MCV and MCHC and serum iron was less than nonpatients (p0/05), and Pica was not treated in patients (p>0/05). Treatment with furuderap increased the blood Hb, MCV and MCHC and serum iron levels, significantly and Pica was treated in patients (p

Abomasal hypomotility plays an important role in pathogenesis of some abomasal disorders such as abomasal bloat that there are same serious side effects associated with using synthetic drugs for its treatment, such as diarrhea and antibiotic resistance and for decreasing these side effects, administration of herbal medicine can be appropriate approach. Evaluating effect of Folus fruit aqueous extract on lamb,s abomasal emptying is goal of this study. This study was conducted on twelve five-day-olds Sangsari-female-lamb (average weight 4 kg). lambs received five oral treatments including salin (30ml), Eeythromycin (400 mg), Folus (700 mg/kg), Folus (750 mg/kg) and Folus (800 mg/kg), respectively Acetaminophen absorption test was used to evaluating the rate of abomasal emptying. After drawing relational model between plasma Acetaminophen concentration and time with regression method showed that treating with erythromycin and three different doses of aqueous extract of Folus fruit (700, 750, 800 mg/kg) increased the rate of abomasal emptying in comparison to the negative control, significantly (P<0.05). No clinical side effects were observed following the administration of erythromycin and Folus in lambs. This study showed that aqueous extract of Folus fruit has a stimulatory effect on lamb's abomasal emptying but more studies are needed on the effect of this plant components on abomasal emptying.

Abomasal hypomotility plays an important role in pathogenesis of some abomasal disorders such as abomasal bloat that there are same serious side effects associated with using synthetic drugs for its treatment, such as diarrhea and antibiotic resistance and for decreasing these side effects, administration of herbal medicine can be appropriate approach. Evaluating effect of Bunium persicum L on lamb,s abomasal emptying is goal of this study. This study was conducted on twelve five-day-olds Sangsari-female-lamb (average weight 4 kg). lambs received five oral treatments including salin (30ml), Eeythromycin (100 mg/kg), Carwey (0.4 gr/kg), Carwey (0.6 gr/kg) and Carwey (0.8 gr/kg), respectively. Acetaminophen absorption test was used to evaluating the rate of abomasal emptying. After drawing relational model between plasma Acetaminophen concentration and time with regression method showed that treating with erythromycin and different levels of aqueous extract of Carwey seed (0.4, 0.6 and 0.8 g/kg) increased the rate of abomasal emptying in comparison to the negative control, significantly (P<0.05). The stimulatory effect of erythromycin on abomasal emptying was higher than aquatic extract of Carwey seed, significantly (P<0.05). No clinical side effect were observed following the administration of erythromycin and Carwey in lambs. This study showed that aqueous extract of Carwey seed has a stimulatory effect on lamb's abomasal emptying but more studies are needed on the effect of this seed,s components on abomasal emptying.

The effects of selenium supplements were investigated on blood glutathione peroxidase activity (GPX), selenium, copper, zinc, iron and weight gain. Twelve female Makuei breed, aged nearly 2 months old and weighed approximately 20 kg was studied for 63 days in 3 groups of control, nano selenium particles (NanoSe) and sodium selenite (NaSe). Mean concentrations of GPX, Cu and Fe were high in NanoSe but the differences were not significant. Among sampling time, it was significant constantly for GPX and Se, occasionally for Cu and Zn but not for weight gain. The percentages of weight gain based on birth weight in groups control, Nano SE were 34.2%, 38.9% and 36.3%, respectively, all were not different among groups and sampling times. The individual comparison of parameters in 40 lambs among groups showed differences for GPX, Se and Cu (P<0.01). Correlations were found between weight/Fe, weight/GPX weight/Se, Zn/Fe and GPX/Se in NanoSe. In conclusion, Se supplements increases GPX activity and Se in which the increases in NanoSe was regular and continues. Se supplements showed no negative effects on Cu, Zn and Fe but caused partially increase in weight gain. NanoSe revealed the correlations between weight gain, GPX, Fe and Se and was priority to NaSe. Thus, the effects of NanoSe in reduce the oxidative stress and increased weight gain was appropriate and probably reasonable option to NaSe administration in lambs.

Pre-pubertal nutrition managements are considered essential for animal health, optimizing production and reproductive performance in livestock.
In this study, the effects of dietary low and high energy and protein provisions on body growth, blood metabolites and inherent safety index were investigated in pre-pubertal Kurdish female lambs.
We fed 40 healthy Kurdish female lambs (30±8.6 days old and weighing 10.2±3.4 kg) were randomly divided into one of two experimental diets in pre-weaning period: high energy and protein (HEP, 2.50 Mcal ME/kg dry matter (DM) and 148 g CP/kg DM) or low energy and protein (LEP, 2.02 Mcal ME/kg DM and 87 g CP/kg DM). At the time of weaning, one half of lambs from each group was randomly separated and assigned to HEP or LEP. So there were four treatment groups in post-weaning period: H-H (HEP pre- and post-weaning); H-L (HEP pre-weaning and LEP post-weaning); L-H (LEP pre-weaning and HEP post-weaning) and L-L (LEP pre and post-weaning, control group). Treatment effects on dry matter intake, milk intake, serum metabolite profiles, inherent safety index and growth were examined.
Pre-pubertal plane were significantly affected above mention parameters at post- weaning period (P It has been observed that diet energy and protein and body energy reserves are much important regulators of growth and health indicators in Kurdish female lambs.

Cryptosporidium parvum is an enteric pathogen of a broad range of animals including ruminants. It is also important in terms of public health due to its transmission from animals to humans. The purpose of the present study was to determine the infection rate of this parasite in lambs raised in farms of Jovein area as a center of sheep production in khorasan-razavi province. At first, some sheep flocks were selected randomly, then fecal samples were collected from the rectum of 300 lambs with the age of 10 days to two months during four seasons between summer 1393 to spring 1394 (July 2014 to May 2015). After recording the sampling time, age, sex, and presence or absence of clinical signs of diarrhea in studied lambs, the samples were transported to the parasitology laboratory. Smears were prepared and stained by modified Ziehl-Neelsen method and examined by light microscopy using magnification of 100× (oil immersion). The results of 150 cases of diarrheic and 150 cases of non- diarrheic stools showed that the infection rate is 3% (9 positive samples). Two (1.3%) and 7 (4.6%) positive samples belonged to diarrheic and non- diarrheic lambs, respectively. The Chi-square test revealed no statistically significant correlation between the protozoan infection rate with diarrhea, age, sex and season of sampling. Although the cryptosporidium infection rate in lambs were relatively low in Jovein area, but sheep should not be overlooked as a possible source of infection that could threaten public health.

The objective of the present study was to study the comparative effect of administering selenium nanoparticles and sodium selenite in pregnant ewes on the blood serum levels of thyroxin in newly born lambs. For this purpose, twenty, four-month pregnant ewes within the same age were used. During the 21 days leading up to birth, supplementation of selenium nanoparticles (Se NPs) with dosages of 0.05 and 0.10 mg/kg B.W. were respectively fed to treatment groups 1 and 2. And supplementation with sodium selenite with dosage of 0.1 mg/kg B.W. was fed to treatment group 3. At the same time the control group was fed distilled water in equal volume. The ewes were monitored under accurate laboratory and clinical examination until the time of delivery. Neonatal lamb serum thyroxin level was measured at the day zero (birth day) and also at the 7th day. The results indicated that serum thyroxin level of neonatal lambs of treated groups 1 and 3, decreased significantly at 7 days' age in comparison to the birth day (p values less than 0.006 and 0.001, respectively). Results also showed that serum thyroxin level of group 2 offspring lambs on the day 0 was significantly less than that in group 1 (p=0.003). It was concluded that the physiological function of selenium nanoparticles was dose dependent, and the 0.05 mg/kg B.W. dosage of Se NPs induced similar effects like 0.1 mg/Kg B.W. of sodium selenite, which resulted in increasing serum level of thyroxin at the day of birth.  Conflict of interest: None declared.