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1.
为了从线粒体基因水平筛选广西地方鸡种质资源DNA条形码,研究利用混合池基因组DNA为模板,利用PCR和直接测序技术,对6个广西地方鸡品种和1个商业化肉鸡品种线粒体上6个基因的SNP进行了分析。结果显示:16 S rRNA在7个品种中都未发现SNP,其他5个基因在7个品种中存在SNP。其中广西三黄鸡、广西麻鸡和龙胜凤鸡SNP位点的百分比相似,南丹瑶鸡和东兰乌鸡SNP位点的百分比相似,而霞烟鸡与艾维茵肉鸡SNP位点的百分比相似。研究结果为进一步开发广西地方鸡品种的DNA条形码奠定了基础。  相似文献   

2.
为探讨广西地方鸡品种遗传关系及群体遗传结构,利用21对荧光标记微卫星引物对广西三黄鸡(SH)、霞烟鸡(XY)、广西麻鸡(GXM)、南丹瑶鸡(NDY)、龙胜凤鸡(LSF)、灵山香鸡(LSX)、凌云乌鸡(LYW)、东兰乌鸡(DLW)和六画山鸡(LHS)等广西地方品种的平均等位基因数(NA)、观察杂合度(Ho)、期望杂合度(He)、多态信息含量(PIC)、品种的杂交情况和群体间的遗传距离进行分析,构建了基于NJ和UPGMA的进化树。结果显示:广西9个地方品种的平均等位基因数为5.26～8.86;观察杂合度最高的是XY,而期望杂合度最高的是GXM;多态信息含量最高的是GXM,最低的是LHS。除了LHS的PIC小于0.5外,其它品种均高于0.5;品种归属分析显示,NDY、LSF、LSX和LHS 4个品种的归属比率都为100%;XY、GXM、LYW和SH。9个品种中SH、XY、LSX和DLW处于Hardy-Weinberg不平衡。群体进化树分析显示,龙胜凤鸡和六画山鸡是一个相对独立的类群,其余7个品种聚为一个较为复杂的大类群。结果表明,广西大部分地方鸡品种的保种效果较理想,保种方案可行,广西地方品种形成与品种所处的地理环境可能存在某种联系。  相似文献   

3.
研究旨在检测不同肉鸡群体中鱼腥味基因FMO3关键位点c.984 AT基因型分布情况,为后续开展鱼腥味基因与鸡肉品质研究提供参考。试验群体包括8个地方品种、2个引进品种和2个专门化品系,采用PCR-RFLP和测序方法进行检测。结果表明:麻黄鸡、惠阳胡须鸡和各专门化品系均无TT基因型个体,且惠阳胡须鸡个体全部为AA基因型(非鱼腥味易感基因型);TT基因型个体在不同地方品种的频率由高到低依次为丝羽乌骨鸡(39.66%)、文昌鸡(18.95%)、清远麻鸡(11.11%)、霞烟鸡(10.84%)、广西三黄鸡(7.04%)和杏花鸡(4.55%);TT型个体在引进品种隐性白为5.26%、Ross308为1.67%。由此可见,除丝羽乌骨鸡和文昌鸡外,其他品种中鱼腥味综合征易感个体(TT基因型)频率均不高。  相似文献   

4.
本试验旨在研究影响鸡蛋鱼腥味的FMO3基因 T329S突变在11个中国地方鸡种中的分布.所选的11个地方鸡种包括:北京油鸡、河北柴鸩、固始鸡、溧阳鸡、如皋鸡,太湖鸡、淮南麻黄鸡、丝羽乌骨鸡、东乡绿壳蛋鸡、文昌鸡、藏鸡,采用PRC-RFLP方法对FM03基因及基因型频率进行检测.试验结果表明东乡绿壳蛋鸡全部表现为TT基因型,不表现鱼腥味综合症,具有较好的蛋品质;而其他10个地方鸡种中均有SS基因型的鱼腥味综合症易感个体,其中北京油鸡SS基因型频率最高,为8.8%,藏鸡的SS基因型频率最低,为0.7%.地方鸡种中鱼腥味综合症易感基因型频率都不高,可以通过PCR-RFLP的方法予以剔除.  相似文献   

5.
本试验旨在研究影响鸡蛋鱼腥味的FMO3基因T329S突变在11个中国地方鸡种中的分布。所选的11个地方鸡种包括:北京油鸡、河北柴鸡、固始鸡、溧阳鸡、如皋鸡、太湖鸡、淮南麻黄鸡、丝羽乌骨鸡、东乡绿壳蛋鸡、文昌鸡、藏鸡,采用PRC-RFLP方法对FMO3基因及基因型频率进行检测。试验结果表明东乡绿壳蛋鸡全部表现为TT基因型,不表现鱼腥味综合症,具有较好的蛋品质;而其他10个地方鸡种中均有SS基因型的鱼腥味综合症易感个体,其中北京油鸡SS基因型频率最高,为8.8%,藏鸡的SS基因型频率最低,为0.7%。地方鸡种中鱼腥味综合症易感基因型频率都不高,可以通过PCR-RFLP的方法予以剔除。  相似文献   

6.
本试验旨在研究鱼腥味敏感基因(FMO3)T329S突变位点在河北太行鸡群体中的等位基因及基因型频率分布情况。根据Gen Bank中公布的鸡FMO3基因序列设计引物,采用PCR-RFLP方法对河北太行鸡T329S位点进行检测。结果显示:河北太行鸡群体中,AA(野生型)、AT(杂合型)和TT(突变型)基因型频率分别为0.8194、0.1672和0.0134。该多态位点处于Hardy-Weinberg平衡状态(P0.05)。结果表明:河北太行鸡群体中存在TT基因型鱼腥味综合征易感个体,其基因型频率不高,可以通过PCR-RFLP的方法予以剔除。  相似文献   

7.
试验旨在研究鱼腥味敏感基因(FMO3)T329S突变位点在五华三黄鸡群体中的等位基因及基因型频率分布情况。采用PCR-RFLP方法对五华三黄鸡群体进行T329S位点检测。结果显示:五华三黄鸡群体中,AA(野生型)、AT(杂合型)和TT(突变型)基因型频率分别为88.79%、11.21%和0,A和T的基因频率分别为95.24%、5.60%。χ^2分析表明该多态位点处于Hardy-Weinberg平衡状态(P>0.05)。表明五华三黄鸡中鱼腥味综合征易感基因型频率不高,但也应通过分子辅助选育技术予以剔除。进一步分析发现在不同的鸡群中FMO3基因T329S突变位点的分布差异较大,可能与选育历史相关。  相似文献   

8.
蛋重和蛋形指数是地方鸡育种过程中蛋品质测定的两个重要性状,会一定程度影响孵化成绩。为探究广西6个地方鸡品种蛋重和蛋形指数的变化规律及其与孵化成绩的关系,将广西三黄鸡(SH)、霞烟鸡(XY)、广西麻鸡(GXM)、南丹瑶鸡(NDY)、龙胜凤鸡(LSF)、东兰乌鸡(DLW)6个地方鸡品种与作为对照的来航鸡(LH)比较,在相同的饲养条件下,对其整个产蛋期的蛋重和蛋形指数及对应孵化成绩进行分析研究。结果显示,广西地方鸡品种的蛋重随着产蛋周龄的增加而增加,产蛋后期显著高于产蛋前期(P0.05),蛋形指数随着产蛋周龄的增加呈上升趋势。来航鸡的蛋重显著高于广西地方鸡(P0.05)。应用判别分析可对本研究6个地方品种受精蛋的孵化情况进行预测和预选。该研究为广西地方品种蛋重和蛋形指数的选种选育提供理论依据。  相似文献   

9.
试验对大恒优质鸡S07品系开展FMO3基因的筛查,了解影响鸡蛋鱼腥味的FMO3基因T329S位点突变的分布情况,为进一步提高该品系的综合性能提供数据基础。采用PCR-RFLP方法对FMO3基因及基因型频率进行检测的结果表明,鱼腥味综合征易感基因型(TT)个体频率不高,仅为1.2%,可以通过分子辅助选择技术予以剔除。  相似文献   

10.
鸡含黄素单氧化酶(FMO3)基因突变可导致鸡蛋出现鱼腥味,因此称为鱼腥味基因。研究旨在采用PCR-RFLP方法检测63个拉萨白鸡个体中FMO3基因T329S突变位点的基因及基因型频率分布,为提高该群体的蛋品质提供数据。结果显示:拉萨白鸡群体中,AA、AT和TT(鱼腥味综合症易感基因型)基因型频率分别为90.48%、9.52%和0,A和T的基因频率分别为95.24%、4.76%。该位点基因型分布处于Hardy-Weinberg平衡状态。拉萨白鸡群体中T等位基因的频率为4.76%,虽然鱼腥味综合征易感个体(TT基因型)期望频率很低,但应该通过分子辅助选择技术予以剔除。  相似文献   

11.
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12.
Pharmacokinetics and milk levels of ceftriaxone were studied in healthy and endometritic cows following single intravenous administration. The drug was detected up to 8 h of dosing in plasma of healthy and endometritic cows and the drug disposition followed three-compartment open model. The values of Vdarea, AUC, t1/2β, ClB, MRT and P/C ratio were 0.50 ± 0.19 L.kg−1, 62.2 ± 23.3 μg.ml−1.h, 1.02 ± 0.07 h, 0.30 ± 0.09 L.kg−1.h−1, 1.55 ± 0.25 h and 0.52 ± 0.27, respectively, in healthy and 1.55 ± 0.52 L.kg−1, 37.0 ± 17.1 μg.ml−1.h, 1.56 ± 0.25 h, 0.56 ± 0.14 L.kg−1.h−1, 2.14 ± 0.34 h and 1.44 ± 0.60, respectively, in endometritic cows. The drug was detected in milk for 36 h after administration. For MIC90 of 0.5 μg.ml−1 the most appropriate dosage for ceftriaxone, would be 9.0 mg.kg−1 repeated at 6 h intervals for the treatment of endometritis in cows.  相似文献   

13.
This study aimed to evaluate the exogenous progesterone (P4) effect on the luteal function from Day 16 to Day 21 of the oestrous cycle in inseminated goats with unknown pregnancy status. A total of 54 does passed through a short progestin-based synchronization protocol and, on Day 16 of the following oestrous cycle, 27 does received a new P4 device which was retained until Day 21. Blood samples were collected daily from all does during this period, as well as on Day 24. Pregnancy diagnoses were performed on Day 30. Serum P4 values from 26 animals (GNPSP: Group of non-pregnant does with second sponge: n = 8; GNPNSP: Group of non-pregnant does without second sponge: n = 6; GPSP: Group of pregnant does with second sponge: n = 5; GPNSP: Group of pregnant does without second sponge: n = 7) were determined by radioimmunoassay commercial kits. No P4 differences were found between groups (GNPSP: 3.1 ± 2.8; 1.7 ± 1.8; 0.4 ± 1.0; and 0.0 ± 0.0 vs. GNPNSP: 4.4 ± 1.8; 3.0 ± 2.2; 0.8 ± 0.8; and 0.0 ± 0.0 or GPSP: 4.2 ± 1.0; 3.4 ± 0.6; 3.3 ± 1.6; 3.2 ± 0.9; 3.6 ± 1.2; 3.5 ± 1.3; 2.7 ± 1.3 vs. GPNSP: 4.4 ± 1.6; 3.6 ± 1.5; 3.7 ± 1.5; 3.8 ± 1.4; 3.2 ± 1.2; 3.1 ± 1.2; 3.6 ± 1.1; D16, D17, D18, D19, D20, D21, D24, respectively) or for the interaction of group and time. In conclusion, a second progestogen device had no effect on luteolysis or early pregnancy in the following oestrous cycle.  相似文献   

14.
Seventy crossbred ewe lambs, born from Pelibuey (PB) dams mated with five sire breeds: White Dorper × PB (WD × PB), Black Head Dorper × PB (BHD × PB), Ile de France × PB (Ile × PB) Katahdin × PB (KT × PB) and Pelibuey (PB × PB), were used to determine age and weight to puberty, follicular populations during prepubertal development, ovulation rate at first ovulation and function of the first corpus luteum (FCL). Ewe lambs were maintained under grazing conditions and were supplemented with 300 g head− 1 day− 1 of a concentrate with 14% CP and 3.0 Mcal ME kg− 1 of DM. From 145 days of age, monthly observations were performed by endoscopy to monitor follicular populations and luteal structures. Ovarian follicles were classified according to size into small (≥ 1 and < 3 mm), medium (≥ 3 and ≤ 4 mm) and large (> 4 mm). Additionally, weekly observations by ultrasonography were performed in four ewes per genotype to assess follicular populations. Luteal function from first ovulation was determined by circulating concentrations of progesterone. Ovulation rate was not affected by genotype (P > 0.05). All breed groups had the same pattern of follicular populations, where most of follicles were small, followed by medium and a small proportion of large follicles. Maximum diameter of follicles was similar for all genotypes during prepubertal development (P > 0.05), with an average range of 3.9 ± 0.20 to 4.4 ± 0.20 mm. The BHD × PB reached puberty at the youngest age of 240.9 ± 13.0 days, compared to all other genotypes (P < 0.05), 259.1 ± 11.7 for WD × PB, 279.3 ± 9.6 for KT × PB and 289.0 ± 15.3 days for PB × PB and 308.6 ± 11.9 days for Ile × PB ewe lambs. Ile × PB had greater weight to first ovulation (31.5 ± 1.19 kg) as compared to other breed groups (P < 0.01). The largest percentage of FCL was for KT × PB ewes (100%) (P < 0.05), followed by BHD × PB (88.9%), PB × PB (83.3), WD × PB (78.6%) and Ile × PB (77.8%). There were no differences in ovulation rate attributable to type of lambing from which ewe lambs came from (P > 0.05). BHD × PB ewe lambs reached puberty at an earlier age than other in this study. KT × PB ewe lambs had the highest percentage of FCL in their first ovulation. Breed of sire Ile de France increased weight to puberty and decreased FCL at first ovulation. In conclusion, the BHD × PB ewe showed puberty at an earlier age than other genotypes, while the KT × PB had the highest percentage of functional corpus luteum in their first ovulation. Ewe lambs coming from single lambings reach puberty at a heavier weight than those coming from multiple lambings. The ovulation rate in the first ovulation of ewe lambs is not affected by genotype and type of lambing.  相似文献   

15.
Summary Standard haematological values have been calculated for female Holstein and Brown Swiss cattle kept at high altitudes in the Andean Sierra. Overall mean values were 5·9 × 1012 l–1 for the red cell count, 0·321l–1 for the packed cell volume, 9·6 gdl–1 for the haemoglobin concentration, 55·0 femtolitres for the mean corpuscular volume, 30·5 gdl–1 for the mean corpuscular haemoglobin concentration and 16·7 pg for mean corpuscular haemoglobin. Red cell indices tended to be higher in Holstein cattle than in Brown Swiss kept at the same altitude and were higher in cattle kept at higher altitudes. Mean white cell parameters were 9·7 × 109 l–1 for total white cells, 2·6 × 109 l–1 for neutrophils, 0·086 × 109 l–1 for bands, 6·3 × 109 l–1 for lymphocytes, 0·7 × 109 l–1 for eosinophils, 0·073 × 109 l–1 for monocytes and 0·001 × 109 l–1 for basophils.
Parametros Hematologicos En Vacas Pardo Suizas Y Holstein Mantenidas A Gran Altitud
Resumen Se calcularon los valores hematológicos estandar de vacas de raza Holstein y Pardo Suiza mantenidas a altitudes elevadas en los Andes. Los valores medios fueron 5·9 × 1012l–1 para la concentración de eritrocitos, 0·321l–1 para el valor hematocrito, 9·6 gdl–1 para la concentración de hemoglobina, 55·0 femtolitros para el volumen corpuscular medio, 30·5 gdl–1 para la concentración corpuscular media de hemoglobina y 16·7 pg para la hemoglobina corpuscular media. La concentración de eritrocitos tendió a ser superior en vacas Holstein que en vacas Pardo Suizas mantenidas a la misma altitud y fue mayor en animales mantenidos a altitudes superiores. Los parámetros leucocitarios medios fueron 9·7 × 109l–1 para la concentración de leucocitos totales, 2·6 × 109l–1 para la de neutrófilos, 0·086 × 109l–1 para la de neutrófilos en banda, 6·3 × 109l–1 para la de linfocitos, 0·7 × 109l–1 para la de eosinófilos, 0·073 × 109l–1 para la de monocitos y 0·001 × 109l–1 para la de basófilos.
Parametres Hematologiques Chez Les Bovins Brown Suisse Et Holstein En Altitude Elevee
Résumé On a calculé les valeurs hématologiques standard pour les vaches Holstein et Brown Suisse élevées dans les hautes altitudes de la sierra andine. En général, les valeurs moyennes ont été de 5,9 × 1012l–1 pour la numération des hématies, 0,321l–1 pour l'hématocrite, 9,6 gd l–1 pour la concentration en hémoglobine, 55,0 femtolitres pour le volume globulaire moyen, 30,5 gdl–1 pour la concentration corpusculaire moyenne en hémoglobine et 16,7 pg pour l'hémoglobine globulaire moyenne. Les indices globulaires ont tendance a être plus élevés chez les Holsteins que chez les Brown Suisses élevées à la même altitude et a être plus élevées pour les bovins élevés à des altitudes plus hautes. Les paramètres moyens pour les leucocytes ont été 9,7 × 109l–1 pour la numération leucoytaire totale, de 2,6 × 109l–1 pour les neutrophiles, de 0,086 × 109l–1 pour les bandes, de 6,3 × 109l–1 pour les lymphocytes, de 0,7 × 109l–1 pour les éosinophiles, de 0,073 × 109l–1 pour les monocytes et de 0,001 × 109l–1 pour les basophiles.
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16.
Four growing pigs (initial liveweight 25.9 ± 0.54 kg, final liveweight 43.0 ± 1.06 kg) were used to study the effect of dietary lysine level on nutrient digestibility, whole-body protein turnover, plasma insulin-like growth factor-I (IGF-I), growth hormone (GH), insulin, glucose, and urea nitrogen (PUN). Four diets, containing 7.0 g (L1), 9.5 g (L2), 12.0 g (L3) and 14.5 g (L4) lysine per kg diet respectively, were formulated as experimental treatments. The animals and diets were allocated in a 4 × 4 Latin square design. Nitrogen (N) metabolism and whole-body protein turnover were measured by classical method and single-dose 15N end-product method, respectively. The blood samples were taken at the end of each experimental period. Results showed that N retention (NR) and N biological value (NBV) were significantly increased from L1 to L4 (P < 0.05). However, differences in NR and NBV between L2, L3 and L4 were not significant (P > 0.05). There was no significant difference on dry matter (DM) digestibility, organic matter (OM) digestibility and N digestibility between different treatments (P > 0.05). Whole-body protein synthesis, protein degradation and protein accretion increased markedly from L1 to L2 (P < 0.05), but did not increase further from L2 to L4. Whole-body protein accretion (y, g/kg W0.75/d) increased with dietary lysine (x, g/kg) in a quadratic manner: y = − 0.09x2 + 2.12x − 5.14 (r2 = 0.96, n = 4, P < 0.05).The results also showed that differences in plasma IGF-I, GH, glucose and PUN concentration between different treatments were not significant (P > 0.05). Plasma insulin concentration (y, μIU/ml) was increased with dietary lysine (x, g/kg) in a quadratic manner: y = 0.23x2 − 4.10x + 32.25 (r2 = 0.99, n = 4, P < 0.05), but it was not found that plasma insulin concentration was related to NR. A significant correlation was found between NR (y, g/d) and plasma IGF-I (x, ng/ml): y = − 3.1 × 10− 3x2 + 1.31x − 122.28 (r2 = 0.99, n = 4, P < 0.05).It was concluded that dietary lysine level had a significant influence on NR and whole-body protein turnover but not on plasma IGF-I and GH concentration. Plasma IGF-I may be an important factor controlling N metabolism of growing pigs. Further research was needed to study the mechanism.  相似文献   

17.
In this study the disposition kinetics and plasma availability of moxifloxacin in Muscovy ducks after single intravenous (i.v.), intramuscular (i.m.) and oral (p.o.) administrations of 5 mg kg?1 b.wt. were investigated. The concentrations of moxifloxacin in the plasma were measured using high-performance liquid chromatography (HPLC) with fluorescence detection on samples collected at frequent intervals after drug administration. Following intravenous injection, the decline in plasma drug concentration was bi-exponential with half-lives of (t1/2α) 0.22 ± 0.10 h and (t1/2β) 2.49 ± 0.26 h for distribution and elimination phases, respectively. The volume of distribution at steady-state (Vdss) was 1.02 ± 0.14 l kg?1 and the total body clearance (Cltot) was 0.32 ± 0.11 l kg?1 h?1, respectively. After intramuscular and oral administration of moxifloxacin at the same dose the peak plasma concentrations (Cmax) were 2.38 ± 0.43 and 2.11 ± 0.36 μg ml?1 and were obtained at 1.47 ± 0.26 and 1.83 ± 0.16 h (Tmax), respectively, the elimination half-lives (T1/2el) were 3.14 ± 0.42 and 2.63 ± 0.44 h, respectively, and AUC0–24 were 15.87 ± 2.35 and 14.52 ± 2.37 μg ml?1 h?1, respectively. The systemic bioavailabilities were 96.36 ± 11.54% and 86.79 ± 12.64%, respectively. In vitro plasma protein binding percent was 32%. We concluded that moxifloxacin might be clinically interesting alternative for the treatment of most sensitive bacterial infections in Muscovy ducks.  相似文献   

18.
Summary Leptospira interrogansserotypes pomonaand icterohaemorrhagiaewere isolated from the kidneys of Rattus norvegicustrapped on pomonainfected piggeries.The isolation of pomonafrom one of 111cultured kidneys, although of interest, strongly suggests that this rat does not play an important part in the epidemiology of infection by this serotype. Kidney tubular degeneration, focal mononuclear infiltrations and fibroplasia are morphological traces which remain after an attack of leptospirosis. The high percentage (48.6)of these lesions found in the rat kidneys examined does not seem to be related to serotype pomonabut to icterohaemorrhagiae.The importance of this last serotype in swine in the Cauca Valley has yet to be assessed.
Leptospirosis En Colombia: Aislamiento DeLeptospira SPP. De Riñones De Ratas Pardas (Rattus Norvegicus) Atrapadas En Porquerizas Infectadas
Resumen Se aislóLeptospira interrogans serotipospomona eicterohaemorrhagiae de riñones deRattus norvegicus atrapadas en porquerizas infectadas porpomona. El aislamiento depomona de 1/111 riñones cultivados, aunque de interés, sugiere que esta rata no desempeña parte importante en la epidemiología de las infecciones por este serotipo.Degeneración tubular renal, infiltración mononuclear focal y fibroplasia son huellas morfológicas que quedan después de un ataque de leptospirosis. El alto porcentaje (48.6) de estas lesiones encontradas en los riñones de las ratas examinadas no parece estar relacionado con el serotipopomona sino con elicterohaemorrhagiae. La importancia de este último seroptipo en cerdos en el Valle del Cauca no se ha evaluado todavía.
Leptospiroses En Colombie: Isolement DeLeptospira SPP. De Reins De Rats Bruns (Rattus Norvegicus) Captures Dans Des Porcheries
Résumé Les sérotypespomona eticterohaemorrhagiae deLeptospira interrogans ont été isolés de reins deRattus norvegicus capturés dans des porcheries infectées de (pomona?). L'isolement depomona sur une seule des 111 cultures de rein effectuées, bien qu'interessant, suggère fortement que ce rat ne joue pas un rôle important dans l'épidémiologie de l'infection par ce sérotype.La dégénerescence tubulaire des reins, des infiltrations ponctuelles par des monocucléaires et l'aspect fibreux constituent les traces morphologiques qui demeurent après une attaque de leptospirose. Le pourcentage élevé (48,6) de ces lésions trouvées dans les les reins des rats examinés semble être plus en rapport avec le sérotypeicterohaemorrhagiae qu'avec le sérotypepomona. L'importance du sérotypeicterohaemorrhagiae chez le porc de la Cauca Valley est encore à vérifier.
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19.
Summary Microfilariae of three genera, namelyElaeophora böhmi, Onchocerca cervicalis andParafilaria multipapillosa were recovered from blood samples of equidae in Tehran, Iran. These microfilarial infections in equidae are reported for the first time from Iran.
Infestacion Filaroidea De Equinos En El Area De Teheran, Iran
Resumen Microfilarias de tres géneros,Elaeophora bohmi, Onchocerca cervicalis andParafilaria multipapillosa se aislaron de la sangre de equinos en el area de Teherán, Irán. Este es el primer reporte de la infestación filaroidea de equinos en Irán.
Filariose Des Equides Dans La Region De Teheran En Iran
Résumé Les microfilaires des genresElaeophora böhmi, Onchocerca cervalis etParafilaria multipapillosa ont été trouvées dans des échantillons de sang d'équidés de la région de Téhéran en Iran. C'est la première fois qu'un tel parasitisme des équidés est constaté en Iran.
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20.
Summary A serological survey of cattle in Mali was carried out to determine the prevalence of antibody activity toBabesia bovis andB. bigemina. It was found that the level ofB. bovis infection as indicated by antibody activities was too low to be of immediate concern. However, the serological prevalence ofB. bigemina was high and this may indicate a potential disease problem. It was also found that when zebu and N'Dama cattle grazed together the N'Dama were twice as likely to have positive titres toBabesia as were the zebus.
Prevalencia Serologica De Babesiosis Bovina En Mali
Resumen Se llevó a cabo un análisis serológico en Malí, para detectar la prevalencia deBabesia bovis yBabesia bigemina. Se encontró, que la prevalencia serológica deB. bovis es baja para considerar la enfermedad una amenaza inmediata. Sinembargo, la prevalencia deB. bigemina fué alta, un problema potencial. Tambien se encontró, que cuando el ganado Cebu y N'Dama pastorea junto, el N'Dama presenta el doble de títulos serológicos deB. bigemina.
Frequence Serologique De La Babesiose Bovine Au Mali
Résumé Une enquête sérologique sur le bétail au Mali a été effectuée pour déterminer la fréquence de l'activité des anticorps àBabesia bovis etB. bigemina. On a trouvé que le degré d'infection àB. bovis tel qu'indiqué par les réactions anticorps était trop faible pour constituer un souci immédiat. Cependant la fréquence sérologique deB. bigemina était élevée, ce qui peut indiquer un problème pathologique potentiel. On a aussi noté que lorsque les zébus et les N'Dama broûtaient ensemble, les N'Dama avaient deux fois plus de chance d'avoir des titres positifs àBabesia que ne l'avaient les zébus.
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