Shahid Chamran University of Ahvaz
Iranian Veterinary Journal
1735-6873
2676-704X
10
1
2014
05
01
Effects of early age feed restriction and thermal conditioning on growth and carcass characteristics in broiler chickens subjected to heat stress
5
12
FA
maryam
aalaee
I do not have the institutional
maryam.aalaee@yahoo.com
Mohammed Hussain
shahir
Department of Animal Science, Faculty of Agriculture ,Zanjan University
shahir_m@znu.ac.ir
Morteza
mamouei
Department of Animal Science,Faculty of Animal Science and Food Technology, Ramin University
mamouei_m@yahoo.com
somayeh
sallary
Department of Animal Science,Faculty of Animal Science and Food Technology, Ramin University
somayehsallary@yahoo.com
The most poultry production in the world is dedicated to dry and tropical regions that these areas have long days with high temperature over 30<sup>0</sup>C. In these regions the most important problem is heat stress which could cause less production and more mortality in the flock. In this study the useful effects of early age thermal conditioning and feed restriction to improve performance of broiler chicks under summer heat stress were investigated. Three hundred chicks (cobb 500) were randomly divided into 4 treatments, with 5 replicates (15 chicks) for each treatments in completely randomized block design. Treatments include thermal conditioning group (TC), feed restriction group (FR), feed restriction-thermal conditioning group (TCFR) and control group (C). The groups TC and TCFR were exposed to thermal conditioning (38±2 C, for 24 h) at third day and the FR and TCFR groups were exposed to feed restriction for seven hours (10 am to 5 pm) at 7-14 days. Thyroid hormones were measured at 26<sup>th</sup> and 40<sup>th</sup> days. Results showed that, thermal conditioning group improved weight gain in comparison with control (p<0.05). Although, All the mentioned treatments had not significant effect on feed intake and feed conversion ratio. Thermal conditioning group increased concentration of T3 and T3/T4 ratio at 26 day of age (p<0.05). The concentration of T3 and T3/T4 ratio at 26 day of age decreased and T3 concentration increased at 40 day of age in feed restriction group, (p<0.05). Therefore, thermal conditioning at 3 day of age, improved performance of broiler chickens through changes in thyroid hormone metabolism in the whole breeding period.
Heat stress,Feed restriction,Thermal conditioning,Thyroid hormones,broiler chickens
https://www.ivj.ir/article_5256.html
https://www.ivj.ir/article_5256_3183c930ddecc1f40c6a46c874962b17.pdf
Shahid Chamran University of Ahvaz
Iranian Veterinary Journal
1735-6873
2676-704X
10
1
2014
05
01
Effect of soy milk on histomorphometric changes of cerebellum in neonatal ovariectomized rats
13
22
FA
مینا
تجلی
دانشگاه شیراز
mtadjalli6@yahoo.com
مهناز
طاهریان فرد
دانشگاه شیراز
mtaherianf@yahoo.com
محمد ابراهیم
آستانه
دانشگاه شیراز
meastane@sums.ac.ir
Soy milk contains isoflavones that comprise the phytoestrogen families. The phytoestrogens are molecules derived from plants that have estrogen-like activity. They have structural similarities with mammalian estrogen. This study was done to investigate effect of soy milk on histomorphometric changes of cerebellum in neonatal ovariectomized rats. For this study, 30 female rats (one-day-old) were kept in standard laboratory conditions. Then 20 rats (one-week-old) were randomly selected and underwent surgical removal of the ovaries (OVX). Five rats were served for sham surgery, and the rest of 5 rats were considered as control study. The three OVX groups were treated on 14 days of age by soy milk (0.75 ml/kg), 1.5 ml/kg and 3 ml/kg respectively 2 times per day. At the end of two months, all rats were euthanized, blood samples were collected and the cerebellum was dissected and fixed in 10% formalin. Serial sections were obtained from prepared blocks and stained by H&E that were studied by light microscopy. Cerebellar histomorphological features included; measuring the thickness of the granular, molecular layers and Purkinje cells size in cerebellum gray matter, counting the cell number in these layers, estimating the thickness of the white matter, comparison of gray matter to the white matter in the cerebellum. According to this study, low estrogen level due to ovariectomized infant rats have reduced the thickness and cell number in most layers of the cerebellum. But, feeding high level of soy milk to ovariectomized infants induced high serum concentrations of 17-β estradiol that subsequently increased thickness and cells numbers of the cerebellum. Therefore the soy milk can be used as a source of synthetic hormone replacement.
Histomorphometric study,Ovariectomized,Rat,Soy milk,cerebellum
https://www.ivj.ir/article_5257.html
https://www.ivj.ir/article_5257_47ea083131c1cee7a9a3a5ab30dd3977.pdf
Shahid Chamran University of Ahvaz
Iranian Veterinary Journal
1735-6873
2676-704X
10
1
2014
05
01
The effect of different forms of magnesium oxide in anesthesia of common carp fingerlings by ketamine
23
29
FA
bakhtiyar
heidari
فارغ التحصیل دکتری دامپزشکی، دانشگاه شهید چمران اهواز
bakhtiyar.heidari@gmail.com
رحیم
پیغان
استاد بخش آبزیان دانشکده دامپزشکی ، دانشگاه شهید چمران اهواز
peyghan2014@gmail.com
امین
اسماعیلی راد
فارغ التحصیل دکتری دامپزشکی ، دانشگاه شهید چمران اهواز
amin_vet66@yahoo.com
حسین
نجف زاده ورزی
دانشیار بخش فارماکولوژی، دانشکده دامپزشکی دانشگاه شهید چمران اهواز
najafzadehvarzi@gmail.com
سراج
بیتا
دانشجوی دکتری تخصصی بهداشت آبزیان
bitaf79@gmail.com
مهدی
پور مهدی بروجنی
استاد یار بخش بهداشت مواد غذایی ، دانشکده دامپزشکی دانشگاه شهید چمران اهواز
pourmehdim@yahoo.com
By increasing demand of aquaculture industry to good and safe anesthetics drugs for fish farming and hatchery practices, investigation for finding new anesthetic drug is necessary. Ketamine is one of anesthetics drugs which have many applications in veterinary medicine. The purpose of this study was to investigate the effect of magnesium oxide nanoparticle and magnesium oxide on anesthesia with ketamine in common carp. For this purpose, 120 common carp fingerling (in 8 groups) were exposed to different concentrations of magnesium oxide nanoparticles (12.5, 25 and 50 ppm) in basic concentration of ketamine (100 ppm), Time of anesthesia and recovery from anesthesia were recorded. Results showed that, there were significant differences between the groups in duration of anesthesia induction and recovery. The use of ketamine anesthesia with nano-magnesium oxide reduced the time of anesthesia in comparison with ketamin anesthesia alone. According to results, by increasing the concentration of magnesium oxide, duration of anesthesia decreased accordingly. The combination of low concentrations of nano-magnesium oxide with ketamine reduced recovery of anesthesia in comparison with the control, but in higher concentration of magnesium oxide, recovery time increased proportionally. In conclusion, the best effective concentration for a safe anesthesia in common carp determined as 25 ppm magnesium oxide with 100 ppm ketamine.
Magnesium oxide,Ketamine,anesthesia,Common carp
https://www.ivj.ir/article_5258.html
https://www.ivj.ir/article_5258_4adf3d22e09ba2c414cc37b3fe62e95b.pdf
Shahid Chamran University of Ahvaz
Iranian Veterinary Journal
1735-6873
2676-704X
10
1
2014
05
01
Evaluation of counterimmunoelectrophoresis method for detection of somatic circulating antigen of Fasciola gigantica in bovine sera
30
36
FA
Mohamad Hossein
Razi Jalali
Academic member of Shahid Chamran University
mh.jalali@scu.ac.ir
مسعود
قربانپور
0000000203014577
عضو هیات علمی
m.ghorbanpoor1967@gmail.com
مهدی
پورمهدی بروجنی
عضو هیات علمی
pourmehdim@yahoo.com
وجیهه
خدادادیان
دانش آموخته دانشگاه شهید چمران اهواز
khodadadian@yahoo.com
Diagnosis of fasciolosis is based on antibody or antigen detection in serum. Antigen detection provides early diagnosis of infection. With counterimmunoelectrophoresis (CIEP) antibody or antigen existence can be detected in less than 3 hours. This study assessed this test for diagnosis of <em>Fasciola gigantica</em> antigen in cattle. For this purpose <em>Fasciola gigantica</em> were collected from liver of infected slaughtered cattle. Somatic antigen was prepeared from collected parasites and was injected into 2 healthy rabbits for production of hyperimmuniune sera. For evalution of CIEP totally 60 negative and 100 positive sera were collected from slaughtered cattle. All sera were evaluated for diagnosis of fasciollosis by CIEP for detection of circulating antigen of <em>Fasciola gigantica</em>. 92 from 100 infected cattle sera were positive and 60 uninfected cattle sera were negative in CIEP. Sensitivity and specifity of CIEP for detection of <em>Fasciola gigantica</em> antigen were 100% and 92% respectively. It is concluded that CIEP has acceptable sensitivity and specifity for rapid and early diagnosis of <em>Fasciola gigantica</em>.
Counterimmunoelectrophoresis,Fasciola gigantica,Cattle
https://www.ivj.ir/article_5259.html
https://www.ivj.ir/article_5259_3aa15af573ea266231a3b67f70fd2a73.pdf
Shahid Chamran University of Ahvaz
Iranian Veterinary Journal
1735-6873
2676-704X
10
1
2014
05
01
Evaluation of the serum Manganese, molybdenum, Iron, copper and macro-minerals in dairy Holstein cows
37
47
FA
Naser
Norouzi
Vet Practitioner
ali_ramin75@yahoo.com
AliGholi
Ramin
associate professor
ali_ramin75@yahoo.com
Siamak
ASri-Rezaie
Clinical sciences, Vet. College, Urmia University
s.asri@mail.urmia.ac.ir
Monitoring levels of serum mineral concentrations in cows is important for assessing the effect of contamination on animal health and safety of animal origin products in human nutrition. Thus the concentrations of the serum macro and micro minerals and their interrelationships in 200 Holstein dairy cows including 20 dairy herds were evaluated in Urmia, Iran. Sera were measured to determine the manganese (Mn), molybdenum (Mo), iron (Fe), copper (Cu), calcium (Ca), magnesium (Mg), phosphorus (P), chloride, sodium and potassium concentrations by atomic absorption, auto analyzer and flame photometer machines using appropriate commercial kits. Mean Mn, Mo, Fe and Cu were 15.45, 0.59 ng/ml, 65.6, 40.2 µg/dl and Ca, P, Mg, sodium, potassium and chloride were 1.91, 1.25, 1.22, 134.2, 3.57, 82.4 mmol/l, respectively. Mean concentration of the minerals among the herds, except for sodium, were significantly different (P<0.01). There were significant relationships between Mn/Mo, Mn/Cu, Mn/Ca, Mo/Fe, Mo/Cu, Mo/Ca and Mo/Mg, of which Mo demonstrated the greatest and strongest correlations with the other minerals. The relationships among trace elements and macro-minerals were mostly negative, while Mn and Mo were positive. In conclusion, serum Mn concentration in Urmia dairy cows is likely low but Mo, Cu and Fe are approximately normal. Herd variations in the serum minerals of dairy herds were clear. The presence of negative correlations among minerals indicates their competition effect with each other, while Mn and Mo support each other. Thus, simultaneous studies of elements will improve the production and reproduction performance by supplying Mn or other mineral supplementation according to their competition or supporting characteristics in dairy food with emphasis on Mn, Ca and phosphorus.
Blood,Micro and Macro minerals,Cow
https://www.ivj.ir/article_5260.html
https://www.ivj.ir/article_5260_a1c8e635a39480102640170a30be1515.pdf
Shahid Chamran University of Ahvaz
Iranian Veterinary Journal
1735-6873
2676-704X
10
1
2014
05
01
Effect of purple coneflower (Echinacea purpurea) extract on the performance and cellular and humoral immune responses of broilers under immunosuppressive condition
48
58
FA
Mohammad
Roostaei Ali Mehr
دانشگاه گیلان
roostaei@guilan.ac.ir
محدثه
میرباذل
دانشگاه گیلان
mirmohadmir@yahoo.com
محمود
حقیقان
دانشگاه گیلان
Haghighian@guilan.ac.ir
The experiment was conducted by using of 240 chicks to determine the effect of purple coneflower extract on the performance and immune responses under immunosuppressive condition. The extract of purple coneflower was added in the levels of 0 (E<sub>0</sub>), 1 (E<sub>1</sub>) and 2.5 ml (E<sub>2.5</sub>) to drinking water from 6 to 42 d. At 14, 15, 16, 34, 36, 38 and 40 d in each level of purple coneflower, half of chicks were treated by 9.9 mg/kg oral cyclosporine (C<sub>+</sub>) and other chicks were not treated (C-). The treatments were E<sub>0</sub>C<sub>-</sub>, E<sub>0</sub>C<sub>+</sub>, E<sub>1</sub>C<sub>-</sub>, E<sub>1</sub>C<sub>+</sub>, E<sub>2.5</sub>C<sub>-</sub>, E<sub>2.5</sub>C<sub>+</sub>. Cellular immune responses were assayed by injection of 0.1 ml Phytohaemagglutinin-P (PHA-P) (0.2 mg/ml) in the skin fold of wings at 16 d and thickness of skin were measured after 24 and 48h. To investigate humoral immune responses a 25% SRBC suspension (0.1 ml) were injected in the breast muscle at 33 d and titers IgG and IgM anti SRBC was determined by haemagglutination test at 34, 36, 38 and 40 d. Results indicated that the feed conversion ratio was lower for 1 ml (1.49) purple coneflower than control (1.62) purple coneflower (P2.5C<sub>+ </sub>thanE<sub>0</sub>C<sub>+ </sub>andE<sub>1</sub>C<sub>+ </sub>but it was lower thanE<sub>1</sub>C<sub>- </sub>andE<sub>2.5</sub>C<sub>- </sub>(P<0.05). Therefore, adding 2.5ml/l purple coneflower extract to drinking water improve cellular and humoral immune responses under immunosuppressive condition.
Purple Coneflower extract,cyclosporine,Cellular and humoral immune response,performance,broiler
https://www.ivj.ir/article_5261.html
https://www.ivj.ir/article_5261_95629f6823f677d0b0ea1896a565f235.pdf
Shahid Chamran University of Ahvaz
Iranian Veterinary Journal
1735-6873
2676-704X
10
1
2014
05
01
Molecular study of Yersinia ruckeri distribution, the causative agent of yersiniosis in some farmed rainbow trout of Iran
59
67
FA
مهدی
سلطانی
گروه بهداشت و بیماری های آبزیان، دانشکده دامپزشکی دانشگاه تهران-قطب علمی بهداشت و بیماریهای آبزیان دانشگاه تهران
dr.m.soli.1343@googlemail.com
شلاله
موسوی
گروه بهداشت و بیماریهای آبزیان دانشکده دامپزشکی دانشگاه تهران
sh_mousavi@ut.ac.ir
حسینعلی
ابراهیم زاده موسوی
گروه بهداشت و بیماریهای آبزیان دانشکده دامپزشکی دانشگاه تهران -قطب علمی بهداشت و بیماریهای آبزیان دانشگاه تهران
hmosavi@ut.ac.ir
سید سعید
میرزرگر
گروه بهداشت و بیماریهای آبزیان دانشکده دامپزشکی دانشگاه تهران
zargarm@ut.ac.ir
علی
طاهری میرقائد
گروه بهداشت و بیماریهای آبزیان دانشکده دامپزشکی دانشگاه تهران
mirghaed@ut.ac.ir
شفیق
شفیعی
گروه بهداشت و بیماریهای آبزیان دانشکده دامپزشکی دانشگاه تهران
shafiei_sh@ut.ac.ir
پولین
شهره
گروه بهداشت و بیماریهای آبزیان دانشکده دامپزشکی دانشگاه تهران
poulin_shohreh@yahoo.com
سمیرا
محمدیان
گروه بهداشت و بیماریهای آبزیان دانشکده دامپزشکی دانشگاه تهران
<em> Yersinia ruckeri</em> is the causative agent of yersiniosis, one of the most serious bacterial diseases in rainbow trout culture industry with high economic losses. Outbreaks of clinical forms of the disease have been considerable in Iranian rainbow trout farms. This study was aimed to evaluate the molecular epidemiology of yersiniosis caused by <em>Y. ruckeri</em>, affected farmed trout in Mazandaran (22 farms), Tehran (18 farms), Lorestan (6 farms) and Zanjan (6 farms) provinces during 2011to 2013. Furthermore, biotyping and sequencing of the recovered Iranian isolates was performed. Totally, 34 <em>Y.</em> <em>ruckeri</em> isolates were identified in Mazandaran (14 farms), Tehran (17 farms) and Zanjan (3 farms). All isolates were strongly positive in latex bacterial agglutination using monoclonal antibody to <em>Y. ruckeri</em>. Also, all isolates were identified as biotype 1 showing motility and having lipase activity. In addition, all isolates showed high sequencing similarity (99%). These biochemical, serological and molecular studies all together confirmed the increasing distribution of yersiniosis casued by <em>Y. ruckeri</em> biotype 1 in farmed trout in Iran and so require preventive measures.
Yersinia ruckeri,Yersiniosis,rainbow trout,Iran
https://www.ivj.ir/article_5262.html
https://www.ivj.ir/article_5262_bf5f359d7f76a6a97cca356304de0b5b.pdf
Shahid Chamran University of Ahvaz
Iranian Veterinary Journal
1735-6873
2676-704X
10
1
2014
05
01
Parasitic contaminationof Mudskipper (Boleophthalmus dussumieri) in coastal waters of Banddar- Abbas
68
76
FA
Ayoob
solaimani
دانشگاه هرمزگان
aiobsolimani85@yahoo.com
Ehsan
Kamrani
Hormozgan university
ezas47@gmail.com
ایرج
موبدی
Tehran University
mohammadaho@gmail.com
Mehdi
zamanirad
Azad University, Olum tahghighat-Tehran
dr_zamanirad@yahoo.com
Sonja
Kleinertz
University Giessen, Germany.
sonja_kleinertz@yahoo.de
The present study was conducted to investigate the ecology of the ectoparasites and gastrointestinal parasites of Mudskipper fish in coastal waters of Bandar- Abbas from late Dec 2011 to Jun 2012. 69 specimens of fish species (<em>Boleophthalmus dussumieri</em>) were collected and transported to the laboratory. The isolated parasites were fixed in 4% formalin and preserved in 70% ethanol. Three species of endoparasites (<em>Quadrigyrus</em><em> </em>(<em>Acanthogyrus</em>)<em> </em><em>persicus </em>(Acanthocephala), Termatoda, Trypanorhyncha (cestode)) and one species of protozoa (trichodina) were separated from intestine and gill of hosts, respectively.The results indicated that the highest average intensity and abundance of <em>Quadrigyridae </em>which was first isolated from Mudskipper, was observed in June, and the highest average intensity of Termatoda and Trypanorhyncha was observed in March and April. A positive correlation was obtained between the <em>Q. persicus</em> abundance and the host’s total length. At present study <em>Quadrigyrus</em><em> </em>(<em>Acanthogyrus</em>)<em> persicus</em> was recorded as new species of parasite. Also, this study showed that some factors: such as seasonal variation and the total length of the host affect on the abundance and intensity of gastrointestinal parasites.
Parasite,Mudskipper,Boleophthalmus dussumieri,Quadrigyrus persicus,Bandar- Abbas
https://www.ivj.ir/article_5263.html
https://www.ivj.ir/article_5263_b9db47e79c66418a229eedc4a2f09507.pdf
Shahid Chamran University of Ahvaz
Iranian Veterinary Journal
1735-6873
2676-704X
10
1
2014
05
01
Evaluation of sperm quality in phenylhydrazine-induced hemolytic anemia impacts on mice and protective role of crocin
77
84
FA
ali
kalantari
Tehran University
ali.kalantari.histology@gmail.com
Rasoul
Shahrooz
urmia university
rasoul_shahrooz@yahoo.com
Abas
ahmadi
Urmia university
a.ahmady@urmia.ac.ir
Hasan
Malekinejad
Urmia University
hassanmalekinejad@yahoo.com
Hemolytic anemia and its produced hypoxia can cause a dysfunction in the testis and spermatogenesis. Iron delivered from hemolysis of erythrocytes can also stimulate oxidative stress. In this study, the aim of this study was to investigate the protective effect of crocin on sperm quality in animals that were exposed against hemolytic anemia induced by phenylhydrazine. Forty nine male and adult mice (20-25g) were grouped within 7 groups. First group was control and treated with normal saline, and test groups were nominated as 2, 3, and 4 and were treated with phenylhydrazine 2, 4, and 6 mg/100g/48 h (i.p.). Animals in groups 5, 6, and 7 were treated with crocin (200 mg/k/day, i.p.) in addition of 2, 4, and 6 mg/100g/48 h phenylhydrazine IP. After 35 days, semen samples were collected from tail of epididymis and the sperm quality parameters including sperm total count, motility, viability, nuclear maturity, and DNA damage were examined. Results showed that phenylhydrazine – induced hemolytic anemia resulted in a remarkable reduction in sperm total count, motility, percentage of viability, percentage of sperm with intact DNA and increased the number of immature sperms, while those groups which were treated with crocin showed significant (P<0.05) improvement in sperm quality parameters. The results may suggest a protective effect of crocin against the phenilhydrazine-induced anemia, which attribute to its antioxidant effects.
Hemolytic anemia,hypoxia,Tissue iron,Phenyl hydrazine,Crocin,sperm quality
https://www.ivj.ir/article_5264.html
https://www.ivj.ir/article_5264_d53ecede9af7e67715dec6503a258cf6.pdf
Shahid Chamran University of Ahvaz
Iranian Veterinary Journal
1735-6873
2676-704X
10
1
2014
05
01
Effectiveness comparison of 3 step injection LHRH-a2+PG with carp pituitary extract (2 step injection) in reproduction function of Barbus sharpeyi
85
95
FA
تکاور
محمدیان
دانشجو
tak.mohammadian@gmail.com
مالک
سیلاوی
دانشجو کارشناسی ارشد
silavi@yahoo.com
احمد رضا
حسینی
هیئت علمی دانشگاه جیزفت
hosseini.j@gmail.com
s
r
کارشناسی ازشد سازمان دامپزشکی
msilavi@yahoo.com
اسماء
محمدی
دانشجوی دکتری تخصصی
asma.m@gmail.com
بختیار
حیدری
دانش آموخته دکتری عمومی دامپزشکی
bakhtiyar.heidari@gmail.com
<em> Barbus sharpeyi</em> of Cyprinidae family is an endemic fish of the province Khuzestan. The Iranian Fisheries Organization (Shilat) produces millions fry (1–5 gr) to restock the horalazim and lagoon Shadgan population annually. The objective of this study was to assay the effectiveness of LHRH-α2 hormone combined with carp pituitary extract (3 steps injection) and carp pituitary extract (2 steps injection) on reproduction index in <em>Barbus sharpeyi</em> including: spawning success, latency period, weight of stripped egg mass/weight of stripped egg mass remnant ovaries, and fertilization success. 200 fish were divided into 10 groups (180 fish treated with LHRH-α2 hormone combined with carp pituitary extract (3 steps injection) to different concentration and 20 carp pituitary extract (2 steps injection) 4.5 mg kg<sup>-1</sup> b.w.). The results showed that the LHRH-α2 hormone combined with carp pituitary extract in three steps injection (Second treatment with 8µg/kg LHRH-α2 in step one, 0.5 mg/kg PG in step two and 3mg/kg PG in step three have excess steps than two step injection lead to higher Latency period, spawning success (72%) and weight of stripped egg mass/weight of stripped egg mass (8.67% average) and fertilization success (77.85%) and spawning rate in comparison with method 2 steps injection (P<0.05). Therefore, it can be concluded that LHRH-α2 hormone combined with carp pituitary extract (3 steps injection) is more effective than CPE (2 steps injection) for spawning induction in<em> Barbus sharpeyi</em> specially Second treatment have suitable concentration for artificial breeding<em>.</em>
Barbus sharpeyi,Induce Spawning,LHRH-α2 hormone,carp pituitary extract,Injection method
https://www.ivj.ir/article_5265.html
https://www.ivj.ir/article_5265_abbecaec34b8d3011788469cba2e6533.pdf
Shahid Chamran University of Ahvaz
Iranian Veterinary Journal
1735-6873
2676-704X
10
1
2014
05
01
Evaluation of reproductive parameters in different programs of CIDR insertion and eCG injection in Mahabadi does during nonbreeding season
96
102
FA
Reza
Masoodi
دانشکده کشاورزی و منابع طبیعی دانشگاه تهران
reza.masoodi@gmail.com
Hamid
Kohram
دانشکده کشاورزی و منابع طبیعی دانشگاه تهران
hamid_kohram@yahoo.com
Mehdi
Lotfi
دانشکده کشاورزی و منابع طبیعی دانشگاه تهران
m.lotfi66@yahoo.com
Mokhtar
Ghaffari
دانشکده کشاورزی و منابع طبیعی دانشگاه تهران
arazghaffari@ut.ac.ir
The objective of this study was to evaluate the best period of progesterone treatment and the time of eCG injection during estrous synchronization in nonbreeding season in Mahabadi does. During nonbreeding season, 103 Mahabadi does, weighing 57.5±0.45 Kg, 2-4 years old, were used in the trail. These does randomly assigned to 6 groups. The control group (n=10) exposed to Mahabadi bucks without any treatments. The group C9-e7of does (n=26) were synchronized using CIDR for a period of 9 days and injected 300 IU eCG at day 7. In groups C17-e15 (n=16) and C17-e17 (n=16), CIDR inserted for 17 days and eCG injected at days 15 and 17, respectively. The groups C19-e17 (n=17) and C19-e19 (n=18) synchronized by CIDR for 19 days and received 300 IU eCG at days 17 and 19, respectively. Estrus detected one day after CIDR removal, then, the does were mated with Mahabadi bucks. The reproductive parameters were analyzed by ProcGenmod using SAS 9.1. The highest mating, kidding and fecundity rates were obtained in group C17-e17 and the highest estrus detection rate and litter size were achieved in group C19-e17 that were significantly higher than control group (P0.05). In all reproductive parameters measured, there were not significantly differences (P>0.05) between C9-e7 group and the other treatment groups of does. Furthermore, the short treatment period of progesterone insertion using in group C9-e7 compared with the other groups, will suggest that this group could be recommended for estrous synchronization program in nonbreeding season of Mahabadi does.
Estrous synchronization,Mahabadi does,CIDR,ECG
https://www.ivj.ir/article_5266.html
https://www.ivj.ir/article_5266_9a071191d3a21ce008c8efe12f10ad1d.pdf
Shahid Chamran University of Ahvaz
Iranian Veterinary Journal
1735-6873
2676-704X
10
1
2014
05
01
Seroepidemiological survey of bluetongue disease in sheep in Khuzestan province
103
111
FA
Sh
N
مهدی
پورمهدی بروجنی
استاد/دانشگاه شهید چمران اهواز
pourmahdim@scu.ac.ir
M
H
m
S
masoudrs@yahoo.com
Bluetongue is an infectious and non-contagious disease of domestic and wild ruminants, caused by bluetongue virus. This virus is a member of the genus Orbivirus and family Reoviridae. Clinical signs are usually detected in fine wool breeds of sheep and include fever, facial oedema, hyperemia and ulceration of oral mucosa, coronitis, lameness, abortion and death. The aim of this study was to evaluate the prevalence of bluetongue infection and association of this organism with host and environmental determinants in sheep in Khuzestan province. Serum samples from 556 sheep were randomly collected in Ahvaz, Hendijan, Baghmalek, Shadegan and Dezfool cities and were examined by ELISA assay. Seroperevalence rate of bluetongue was 55.9 % (95% CI: 51.8-60%). Logistic regression showed that the odds of infection was increased with increase of age (OR: 1.17 and 95% CI: 1.06-1.29). Relative frequency of infection was higher in male sheep than female sheep (P>0.05) and odds of infection in male sheep than females was 1.29 (95% CI: 0.71-2.37). Prevalence rate were in sheep with and without history of abortion 47.8% and 55.7% respectively (P>0.05) and odds of infection in sheep with history of abortion than healthy sheep was 0.63 (95%CI: 0.27-1.46). Prevalence rate in Ahvaz, Hendijan, Baghmalek, Shadegan and Dezfool were 50.2%, 12.5%, 60.5%, 82.8% and 85.7% respectively(P<0.001) and 33.5% of fluctuation of disease was justified by geographical location. This study confirms that bluetongue virus exists in Khuzestan province. According to local weather conditions and facility of vector-borne diseases, prevention and control measures should be considered by health authorities.
Epidemiology,Bluetongue virus,ELISA,Sheep,Khuzestan
https://www.ivj.ir/article_5267.html
https://www.ivj.ir/article_5267_5993f587f458b36f2d0c7b4937912e2c.pdf