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Pub Date : 2021-06-30 DOI: 10.37940/ajvs.2021.14.1.2
K. Odhaib, M. Alallawee, Zainab A. H. Al-Mousawi
The purpose of this review is to summarize the effectiveness, modes of action and commercial application of herbal plants and their derivatives as growth promoters for animal. As described in literature, the increase in the growth of farming prices and feed costs for small ruminant in general, led to increases difficulties in production of livestock. To dissolve this issue, several studies concentrated on new alternative of feed resource, but others have tried to enrich milk products and meat by rising polyphenol compounds content to their by introductions of herbal plants in sheep and goat feed. Currently, consumers demand safety and the quality of feeding. Since antibiotics can be leave residues in ruminant tissues, that could induce subsequent emergence of resistant strains of microorganisms capable of endangering the health of livestock and human. This scenario has given the impetus to explore alternatives to antibiotics in animal nutrition. Consequently, as replacement for the synthetic growth promoter’s antibiotics, natural products like herbs and spice as natural feed additives come to the attention to enhance physiological functions. So, the use of feeds containing bioactive compounds such as thymol, flavonoids, saponins, limonene, thymoquinone, essential oils and others which concentrated in different parts, such as leaves, roots and seeds that can be used for these purpose in animal feed and responsible for the healthy animal product. Furthermore, one of the hot points in the advanced research is the stability of animal product against the oxidative deterioration process that limits the shelf life.
本文综述了中草药及其衍生物作为动物生长促进剂的有效性、作用方式和商业应用。正如文献中所述,农业价格和小型反刍动物饲料成本的增长普遍导致牲畜生产困难增加。为了解决这个问题,一些研究集中在新的饲料资源替代品上,但其他研究试图通过在绵羊和山羊饲料中引入草药植物来提高多酚化合物的含量,从而丰富乳制品和肉类。目前,消费者要求饲料的安全性和质量。由于抗生素可能会残留在反刍动物组织中,这可能会导致随后出现能够危害牲畜和人类健康的耐药微生物菌株。这种情况推动了在动物营养中探索抗生素的替代品。因此,作为合成生长促进剂的抗生素的替代品,草药和香料等天然产品作为天然饲料添加剂以增强生理功能而受到关注。因此,使用含有生物活性化合物的饲料,如百里酚、类黄酮、皂苷、柠檬烯、百里醌、精油和其他浓缩在不同部位的物质,如叶、根和种子,这些物质可用于动物饲料中的这些目的,并对健康的动物产品负责。此外,高级研究的热点之一是动物产品对限制保质期的氧化降解过程的稳定性。
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引用次数: 1
Liverfluke Coprological Cross-Sectional Survey in Cattle, Sheep and Goats in Sharazur District Kurdistan- Iraq 库尔德斯坦-伊拉克Sharazur地区牛、绵羊和山羊肝吸虫粪学横断面调查
Pub Date : 2021-06-30 DOI: 10.37940/ajvs.2021.14.1.3
K. Ali, H. Marif, N. Kakarash, H. O. Mohammed
Cross-sectional coprological survey was conducted to know the prevalence of liver flukes in cattle, sheep and goats in Sharazur district Kurdistan- Iraq from June 2018 to March 2020. Parasitological examination of fecal samples collected from 685 animals from several field (280 sheep, 245 goats and 160 cattle) was done by using sedimentation method (Fecal Egg Count Reduction Test- FECRT). We revealed that an overall Fasciola species prevalence were (49.48%). Liver fascioliasis was documented highly in sheep (55.71%), followed by cattle (47.5 %) and goats (43.67%). Risk factors such as age and sex showed a significant effects on the prevalence of liver flukes (P<0.05). A higher prevalence rate was noticed and identified in animals older than 3 years old (57.66%) and it was higher than those found in middle age (47.71%) and in young animals (31%). The prevalence of female Fascioliasis was (52.74%) and higher than male Fasciolasis which was (40%).
为了解2018年6月至2020年3月伊拉克库尔德斯坦Sharazur地区牛、绵羊和山羊肝吸虫的流行情况,进行了横断面血清学调查。采用沉降法(粪蛋计数减少试验- FECRT)对从多个野外采集的685只动物(280只绵羊、245只山羊和160头牛)的粪便样本进行了寄生虫学检查。调查结果显示,我市片形吸虫种群总体流行率为49.48%。绵羊(55.71%)、牛(47.5%)和山羊(43.67%)的肝片吸虫病发生率最高。年龄、性别等危险因素对肝吸虫患病率有显著影响(P<0.05)。3岁以上动物患病率较高(57.66%),高于中年动物(47.71%)和幼龄动物(31%)。女性片形吸虫患病率为52.74%,高于男性片形吸虫患病率(40%)。
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引用次数: 0
Selenium Enriched Yeast Modifies the Effects of Methandienone in Male Rabbits on the HPA Axis and Adrenal Gland Oxidative Stress 富硒酵母修饰甲二烯酮对家兔HPA轴和肾上腺氧化应激的影响
Pub Date : 2020-12-16 DOI: 10.37940/ajvs.2020.13.2.8
S. Abed, T. Al-Azawi
The aim of this study was to investigate the changes caused by anabolic androgenic steroids (methandienone) in the hypothalamic adrenal axis (HPA) and oxidative status in adrenal glands and a protective role role by using organic selenium (high-selenium yeast) in adult male rabbits which treated with Methandienone in combination with selenium. A total of 20 intact male rabbits were divided into four equal groups (n = 5 for each group):a control group receiving distilled water, the AAS group (T1) receiving Methandienone (oral dose of 0.35 mg / kg.B.W.),the selenium group (T2) receiving high-selenium yeast (3 μg/ kg B.W orally)and the combination group (T3) getting both methandienone and selenium. The dosing every day for 60 days. . The hormones β-endorphin, ACTH and cortisone were measured in serum during two periods, 30 and 60 days of the experiment and the expression levels of Nuclear factor erythroid-2 and related factor-2 (Nrf2) and Translocater protein (TSPO) genes were measured in adrenal gland. a significant increase in beta-endorphin and ACTH and a decrease in cortisone were found in both 30 and 60 day periods in the AAS group (T1) compared with another groups (control, T2 and T3). On the other hand, T3 group shows a decrease in serum β-Endorphin and ACTH and no significant changes in cortisone in both periods .These changes were a compared with to AAS group. Moreover, there is a significant increased in revers transcription (mRNA) of Nrf2 factor and TSPO genes in AAS group(T1) as compared with other groups (T2 and T3). In addition, we observed a significant decrease in levels of Nrf2 and TSPO mRNA in the selenium-yeast group compared to the AAS group (T1). In conclusion, these results showed that organic selenium (high selenium yeast) has a positive effect (protective role) against oxidative damage to the adrenal gland caused by AAS with no effect on the adrenal steroidogenesis, which are affected by AAS.
本研究旨在探讨有机硒(高硒酵母)对甲二烯酮联合硒对成年雄性家兔下丘脑肾上腺轴(HPA)和肾上腺氧化状态的影响及其保护作用。选取20只健康雄性家兔,随机分为4组,每组5只,分别为对照组、AAS组(T1)、高硒酵母组(T2)(口服剂量为0.35 mg / kg B.W)、甲二烯酮组(T3)和甲二烯酮组(T3)。每天给药,连续60天。在实验第30和60天测定血清β-内啡肽、ACTH和可的松激素水平,测定肾上腺核因子-2及其相关因子-2 (Nrf2)和易位蛋白(TSPO)基因的表达水平。与其他组(对照组,T2和T3)相比,AAS组(T1)在30和60天期间均发现β -内啡肽和ACTH显著升高,可的松显著降低。另一方面,T3组两期血清β-内啡肽和ACTH水平均下降,可的松水平无明显变化,与AAS组比较差异无统计学意义。此外,AAS组(T1) Nrf2因子和TSPO基因的逆转录(mRNA)较其他组(T2和T3)显著升高。此外,与AAS组相比,硒酵母组Nrf2和TSPO mRNA水平显著降低(T1)。综上所述,有机硒(高硒酵母)对AAS引起的肾上腺氧化损伤具有积极的保护作用,而对AAS影响的肾上腺甾体生成无影响。
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引用次数: 0
Estimation of Genetic Diversity in Four Genetic Groups of Local Kurdish Chicken Using RAPD-PCR 用RAPD-PCR技术估算当地库德鸡四个遗传群的遗传多样性
Pub Date : 2020-12-16 DOI: 10.37940/ajvs.2020.13.2.9
A. Shaker, Q. Ameen, R. Al-Obaidi, Sehand K Arif, Sirwan Sleman, B. Nore, H. Hermiz, S. Kirkuki, Taher R. Al-Khatib
The current study conducted to detect the genetic diversity between four genetic groups of Kurdish local chicken using RAPD-PCR technique. Ten random markers used to amplified DNA were selected for genotyping the four lines. One hundred twenty four polymorphic bands were amplified, the bands size ranged between (2500 and 100 bp). The primer (OPA-05, OPA-18) produced maximum number of polymorphic bands, while primers named (OPA-16) produced minimum number of polymorphic bands. The (WNFS) genetic group showed the highest number of amplified fragments (55) for both male and female (30), (25) respectively. While (BBN) genetic group showed the lowest number of amplified fragments (20) for both male and female (7), (13) respectively. According to the results obtained from the current study, it can be conclude that the four genetic groups differ genetically. Moreover the results will help the breeders to study new selection strategies between the four genetic groups.
本研究利用RAPD-PCR技术检测了库尔德地方鸡四个遗传群之间的遗传多样性。选择10个用于扩增DNA的随机标记对4个品系进行基因分型。扩增出124条多态条带,条带大小在2500 ~ 100 bp之间。引物OPA-05、OPA-18产生的多态性条带数最多,引物OPA-16产生的多态性条带数最少。(WNFS)遗传组在雄性和雌性中扩增片段数最多,分别为55个和25个。而(BBN)遗传组扩增片段数最少,男性为20个,女性为7个,女性为13个。根据目前的研究结果,可以得出结论,这四个遗传群体在遗传上是不同的。此外,研究结果将有助于育种者研究四个遗传群体之间新的选择策略。
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引用次数: 0
Using of Saccharomyces Cerevisiae and Lactobacillus Acidophilus as Probiotic Against Salmonella Enterica Serovar Typhimurium Isolated from Poultry 应用酿酒酵母和嗜酸乳杆菌作为益生菌抗禽源伤寒沙门氏菌
Pub Date : 2020-12-16 DOI: 10.37940/ajvs.2020.13.2.10
Nawar A. Jasim
The study aimed to determine the effect of S. cerevisiae and L. acidophilus as probiotic against S. typhimurium isolated from poultry, for this purpose (50) fecal samples were collected from poultry to isolated S. typhimurium, while fermented milk used for isolation of Lactobacillus acidophilus. Results of current study showed that S. typhimurium isolated in rate of 6%. In-Vivo adhesion Index test showed high ability of L. acidophilus to adhesion on rat intestine endothelium in compare with Saccharomyces cerevisiae .The inhibitory zone occurred by S.cerevisiae filtrate, L. acidophilus filtrate, (S .cerevisiae and L. acidophilus mixture) filtrate were (10, 16, 19 mm) respectively. The results of experimental study showed that high activity of (S.cerevisiae and L. acidophilus mixture) filtrate in protect experimental animals. Main pathological changes occurred by S.typhimurium were infiltration of inflammatory cells.
本研究旨在确定酿酒酵母和嗜酸乳杆菌作为益生菌对从家禽中分离出的鼠伤寒杆菌的影响,为此(50)从家禽中收集粪便样本以分离出鼠伤寒杆菌,而发酵乳用于分离嗜酸乳杆菌。目前的研究结果表明,鼠伤寒沙门氏菌的分离率为6%。体内粘附指数试验表明,与酿酒酵母相比,嗜酸乳杆菌对大鼠肠内皮的粘附能力较高。酿酒酵母滤液、嗜酸乳杆菌滤液、(酿酒酵母和嗜酸乳杆菌混合物)滤液的抑菌带分别为(10,16,19mm)。实验研究结果表明,酿酒酵母和嗜酸乳杆菌的混合物滤液具有较高的保护实验动物的活性。鼠伤寒杆菌的主要病理变化为炎性细胞浸润。
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引用次数: 0
Innate and Adaptive Immunity in Fish: A Review 鱼类的先天免疫和适应性免疫
Pub Date : 2020-12-16 DOI: 10.37940/ajvs.2020.13.2.1
Enas Mustafa, S. Al-Taee
The fish inhabitant in an aquatic environment so it persists exposure to pathogen and stressor factors so they have a developing immune system similar to that in high vertebrate with some differences points. Head Kidney considered the main and primary hematopoietic organs while spleen, thymus and gut-associated lymphoid tissue represented secondary hematopoietic organs. The immune system divided to the innate immune system doesn’t have a memory of previous responses, non-specific cellular as natural killer cells, dendritic cells, neutrophils, basophils and eosinophils with non-specific component these involve complement, lysosomes and acute-phase protein, if the pathogen persists the specific, memory adaptive immunity would be stimulation which composed of two subunits humeral and natural antibodies act for invading extracellular pathogen and the second subunits which are cytokines and T-lymphocyte act for kill intracellular bacterial, parasitic and viral infection. Both subunits (innate and adaptive) of the immune system act each together in the hosts to prevent microorganism’s infection and reducer the environmental stressors and give fish immune status. It is concluded from this article review that fish, like mammalians, have an advanced immune system that plays a role in fish resistance to pathological factors and maintaining fish health.
鱼类生活在水生环境中,因此持续暴露于病原体和压力源因素,因此它们的免疫系统与高等脊椎动物的免疫系统相似,但存在一些差异。头肾被认为是主要和主要的造血器官,而脾脏、胸腺和肠道相关淋巴组织则是次要的造血器官。被分为先天免疫系统的免疫系统对以前的反应没有记忆,非特异性细胞如自然杀伤细胞、树突状细胞、中性粒细胞、嗜碱性粒细胞和嗜酸性粒细胞具有非特异性成分,这些成分涉及补体、溶酶体和急性期蛋白,如果病原体持续特异性,记忆适应性免疫是由两个亚基组成的刺激,肱骨和天然抗体起入侵细胞外病原体的作用,第二个亚基是细胞因子和T淋巴细胞起杀死细胞内细菌、寄生虫和病毒感染的作用。免疫系统的两个亚基(先天和适应性)在宿主中共同作用,以防止微生物感染,减少环境压力,并赋予鱼类免疫状态。本文综述表明,鱼类和哺乳动物一样,具有先进的免疫系统,在抵抗病理因素和维持鱼类健康方面发挥作用。
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引用次数: 1
Prophylactic Effect of Ethanolic Extract of Saussurea Costus Roots Against Hepato- Renal Toxicity Induced by Diazinon in Chickens 雪莲根乙醇提取物对二嗪农致鸡肝肾毒性的预防作用
Pub Date : 2020-12-16 DOI: 10.37940/ajvs.2020.13.2.4
Alaa Hamad, M. Kadhem
The study was performed to investigate the prophylactic role of Saussurea costus roots in the functional and histological changes caused by diazinon in the liver and kidneysin chickens. 18 chickens were used of Arbor Acres strain at 54 days of age and 1300-1500 gm average of body weight was used for this purpose. The birds were divided into 3 groups equally (6chicken in each groups), Group 1: served as a control negative received distilled water 1 ml. Group 2: served as a positive control group, received diazinon at a dose of 0.2 mg/kg/day. Group 3: were given an ethanolic extractof Saussurea costus at dose 300 mg/kg, then after one hour administrated diazinon at the dose of 0.2 mg/kg/day, this group served as a prophylactic group. The doses were given orally once daily for 4 weeks.The results of group 2 showed clinical signs such as ruffled feathers, salivation, diarrhea, breathing from the mouth, teary eyes, drooping of wings. The body weights of the chickens and weights of the liver and kidneys of group 2 significantly declined (p≤ 0.05) compared with groups 1 and 3. There was a significant decrease (p≤ 0.05) in WBC count, lymphocyte, total protein, albumin, GSH, SOD, CAT, and GPX levels, while a significant increase (p≤0.05) in heterophil, ALT, AST, creatinine, urea, uric acid, and MDA compared with group 1. The gross examination of the liver and kidney of group 2 were pale, easily crumbles and smaller than that of group 1. Histopathological changes of the liver of group 2 including congested and dilated central vein, vacuolated cytoplasm of hepatocytes, focal necrotic tissue filled with inflammatory cells, thickening of the bile duct, thickening wall of the portal artery. fibroblast in portal area, dilated sinusoid. Histopathological changes of the kidney including dilatation of renal tubule, hemorrhage, and atrophy in the glomerulus. we concluded that administration of ethanolic extractof Saussurea costus resulted in amelioration of the morphological changes in diazinon treated chickens, improved parameters and restored the parameters to near normal compared with group 1. These results revealed that Saussurea costus roots acts as an antioxidant substance and has a hepatic and renoprotective effect against toxicity induced by diazinon.
本研究旨在探讨肋毛雪莲根对二嗪农引起的鸡肝脏和肾脏功能和组织学变化的预防作用。使用Arbor Acres品系的18只54日龄的鸡,并为此目的使用1300-1500克的平均体重。将这些鸟平均分为3组(每组6只),第1组:作为对照阴性,接受1ml蒸馏水。第2组:作为阳性对照组,接受剂量为0.2mg/kg/天的二嗪农。第3组:给予肋雪莲乙醇提取物300mg/kg,1小时后给予二嗪农0.2mg/kg/天,作为预防组。每天口服一次,持续4周。第2组的结果显示出临床症状,如羽毛褶皱、流涎、腹泻、口腔呼吸、流泪、翅膀下垂。与第1组和第3组相比,第2组鸡的体重以及肝脏和肾脏的重量显著下降(p≤0.05)。与第1组相比,WBC计数、淋巴细胞、总蛋白、白蛋白、GSH、SOD、CAT和GPX水平显著降低(p≤0.05),而嗜异性、ALT、AST、肌酸酐、尿素、尿酸和MDA水平显著增加(p≤0.05%)。第2组的肝脏和肾脏的大体检查比第1组苍白、容易破碎且较小。第2组肝脏的组织病理学变化包括中央静脉充血扩张、肝细胞细胞质空泡化、充满炎症细胞的局灶性坏死组织、胆管增厚、门动脉壁增厚。门区成纤维细胞,窦扩张。肾脏的组织病理学变化,包括肾小管扩张、出血和肾小球萎缩。我们得出的结论是,与第1组相比,给予雪莲乙醇提取物改善了二嗪农处理的鸡的形态学变化,改善了参数并使参数恢复到接近正常。这些结果表明,肋毛雪莲根是一种抗氧化物质,对二嗪农的毒性具有肝脏和肾脏保护作用。
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引用次数: 1
Ameliorative Effect of Ethanolic Extract of Petroselinum Crispum Against Gentamicin-Induced Nephrotoxicity in Rabbits Male 油麻乙醇提取物对庆大霉素所致家兔雄性肾毒性的改善作用
Pub Date : 2020-12-16 DOI: 10.37940/ajvs.2020.13.2.5
Sarah Hussain, M. Kadhem
The experiment was conducted to investigate the protective effect of Petroselinum crispum leave extracted against gentamicin-induced nephrotoxicity in male rabbits by studying the body weight, clinical signs, haematological and biochemical parameters, gross lesion and histopathological changes. Twenty four rabbits male were used and divided into 4 groups. Group 1: rabbits served as a negative control, received distilled water 1 ml(orally). Group 2: rabbits served as a positive control group, received gentamicin at a dose of 80 mg/kg/day intramuscular for 15 days. Group 3: rabbits received gentamicin at a dose of 80 mg/kg/day then after one hour treated with ethanolic extract of Petroselinum crispum at dose 125 mg/kg orally for 15 days. Group 4: rabbits received gentamicin at a dose of 80 mg/kg/day then after one hour treated with ethanolic extract of Petroselinum crispum at dose 250 mg/kg orally for 15 days.The results of the gentamicin treated group( positive control group) showed clinical signs such as loss of body weight, loss of appetite and rough hair with hematuria. The body weight a significantly declined (p≤ 0.05) compared other groups. There was a significant decrease (p≤ 0.05) in WBC count, lymphocyte, GSH, SOD, CAT, and GPX levels, while it recorded a significant increase (p≤0.05) in weights of the kidneys, neutrophils, creatinine, urea, and MDA. Histological studies showed several kidney pathological changes such as pale colour, enlargement in size and weight and easy from detaching as opposed to negative control group. On the other hand, the group treated with ethanolic extractof Petroselinum crispum at dose 125 mg/kg induced improved of parameters as recorded significant increased(P ≤ 0.05) in body weight, WBC count, lymphocyte, GSH, SOD, CAT, and GPX, while significant decreased (P ≤ 0.05) in weights of the kidneys, neutrophils, creatinine, urea, and MDA compared with the positive control group whereas rabbits treated with ethanolic extract of Petroselinum crispum at dose 250 mg/kg restored the parameters and histological changes of the kidney to near normal status compared with the negative control group. These results showed that the dose-detected Petroselinum crispum extract (250mg / kg) acts as potential curative effect against gentamicin-induced nephrotoxicity in male rabbits.
本实验通过对雄性家兔体重、临床体征、血液学及生化指标、大体病变及组织病理学变化的研究,探讨了石竹叶提取物对庆大霉素所致肾毒性的保护作用。选取24只雄性家兔,分为4组。第一组:家兔作为阴性对照,给予蒸馏水1 ml(口服)。第二组:兔为阳性对照组,给予庆大霉素80 mg/kg/d肌内注射,持续15 d。第三组:给予庆大霉素80 mg/kg/d, 1 h后给予石竹醇提物125 mg/kg口服,连用15 d。第4组:给予庆大霉素80 mg/kg/d, 1 h后给予石竹醇提物250 mg/kg口服,连续15 d。庆大霉素治疗组(阳性对照组)临床表现为体重减轻、食欲不振、毛发粗糙并伴有血尿。与其他各组相比,体重显著下降(p≤0.05)。WBC计数、淋巴细胞、GSH、SOD、CAT、GPX水平显著降低(p≤0.05),肾脏重量、中性粒细胞、肌酐、尿素、MDA水平显著升高(p≤0.05)。组织学研究显示,与阴性对照组相比,肾脏颜色苍白,大小和重量增大,易脱落等多种病理改变。另一方面,125 mg/kg剂量的石竹叶乙醇提取物组大鼠的体重、WBC计数、淋巴细胞、GSH、SOD、CAT和GPX均显著升高(P≤0.05),肾脏、中性粒细胞、肌酐、尿素、GPX显著降低(P≤0.05)。与阴性对照组相比,250 mg/kg剂量的石竹醇提物使肾脏各项参数和组织学变化恢复到接近正常状态。结果表明,剂量检测的石竹提取物(250mg / kg)对庆大霉素引起的雄性家兔肾毒性有潜在的治疗作用。
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引用次数: 0
Cadmium Toxicity and some Target Organs: A Review 镉毒性与某些靶器官研究进展
Pub Date : 2020-12-16 DOI: 10.37940/ajvs.2020.13.2.2
A. Farhan, S. T. Jasim
Cadmium is dangerous pollutant in environment because it is difficult to excrete out of the body. It causes disease in humans and animals. When the body absorbs large quantities of cadmium or when constantly exposed to small quantities, it is toxic to the body. Cadmium affects many parts of the body, the most important of which are the liver, kidneys, lungs, and testes. Both the liver and the kidney are considered organs to excrete toxins, such as heavy metals. Therefore, they are most influenced by cadmium. This study focuses on the toxicity of cadmium in the liver, kidneys, lungs and testes and its toxic effects on the histological, cellular, and functional level of each organ. We will discuss the mechanism through which cadmium causes damage to the organs of the body and the interaction that results from it.
镉是环境中的危险污染物,因为它很难排出体外。它会引起人类和动物的疾病。当身体吸收大量镉或经常接触少量镉时,对身体有毒。镉影响身体的许多部位,其中最重要的是肝脏、肾脏、肺部和睾丸。肝脏和肾脏都被认为是排出重金属等毒素的器官。因此,它们受镉的影响最大。本研究的重点是镉对肝脏、肾脏、肺部和睾丸的毒性及其对每个器官的组织学、细胞和功能水平的毒性影响。我们将讨论镉对身体器官造成损害的机制以及由此产生的相互作用。
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引用次数: 0
Histological and Histometrical Features of the Mammary Gland in Immature and Lactating Local Breed Ewes (Ovis aries) 未成熟和哺乳期地方品种母羊(绵羊)乳腺的组织学和组织计量学特征
Pub Date : 2020-12-16 DOI: 10.37940/ajvs.2020.13.2.14
D. A. Abood, A. Talab
Twelve samples of mammary glands (6 immature and 6 lactating ewes) were used for this study. Specimens of glands were immediately dissected and fixed in 10% formalin sol. The specimens were processed according to paraffin technique, sectioned at 5-6µm and stained by hematoxylin and eosin, Masson's Trichrom stains. In both immature and lactating ewes the mammary glands were covered by skin. In immature ewes the mammary quarter was composed of few mammary lobes that separated by very thick inter lobar adipose tissue. The lactating quarter was composed of huge mammary lobes and lobules without adipose tissue. In immature the lobe was consisted of few small lobules that composed of few of mammary alveoli while the lactating lobes had large sizes lobules and each had large alveoli which lined by tall cuboidal cells and supported by fibrous tissue and myo epithelial cells. In both immature and lactating ewes, the gland and teat cisternae were showed many of mucosal folds which lined by pseudo stratified columnar epithelium and supported by fibrous connective tissue. The teat cisterna of both immature and lactating was composed three layers; mucosal cisterna, fibro muscular layer and skin. The teat canal was lined by pseudo stratified squamous epithelium and the sub epithelial connective tissue showed well developed venous sinus and fibro muscular. Statistical analysis was revealed significant differences between the values of all parameters of immature and lactating ewes. Apparent surface areas of the lobe in immature and lactating were 122143.063±23.21 µm2 & 992541.188±33.81 µm2 respectively. Surface areas of lobule in immature and lactating were 1042.938±21.02 µm2 & 91565.977±25.60 µm2 respectively. Surface areas of alveoli in immature and lactating were 994.238±11.39 µm2 & 4584.270±19.26 µm2 respectively. Epithelial heights of alveoli in immature and lactating were 10.290±1.01 µm & 23.012±2.81 µm respectively. Thickness of inter lobar tissue in immature and lactating ewes 677.393±23.67 µm and 361.401±10.86 µm respectively. Thickness of inter lobular connective tissue in immature and lactating were 112.969±±11.48 µm and 90.281±9.81 µm respectively.
本研究使用了12个乳腺样本(6只未成熟母羊和6只泌乳母羊)。立即解剖腺体标本,并将其固定在10%福尔马林溶胶中。根据石蜡技术对标本进行处理,在5-6µm处切片,并用苏木精和伊红、Masson’s Trichrom染色。未成熟和哺乳期母羊的乳腺都被皮肤覆盖。在未成熟的母羊中,乳腺的四分之一是由很少的乳腺叶组成的,这些乳腺叶被非常厚的叶间脂肪组织分隔开。泌乳区由巨大的乳腺叶和小叶组成,没有脂肪组织。未成熟时,小叶由几个小小叶组成,这些小叶由几个乳腺肺泡组成,而哺乳期的小叶有大尺寸的小叶,每个小叶都有大肺泡,肺泡由高大的立方细胞排列,并由纤维组织和肌上皮细胞支撑。在未成熟和哺乳期的母羊中,腺体和乳头池都显示出许多粘膜褶皱,这些褶皱由假复层柱状上皮排列,并由纤维结缔组织支撑。未成熟和哺乳期的乳头池由三层组成;粘膜池、纤维肌层和皮肤。乳头管内衬假复层鳞状上皮,上皮下结缔组织显示静脉窦和纤维肌发育良好。统计分析显示,未成熟母羊和泌乳母羊的所有参数值之间存在显著差异。未成熟和哺乳期的肺叶表观表面积分别为122143.063±23.21µm2和992541.188±33.81µm2。未成熟和哺乳期小叶表面积分别为1042.938±21.02µm2和91565.977±25.60µm2。未成熟和哺乳期肺泡表面积分别为994.238±11.39µm2和4584.270±19.26µm2。未成熟和哺乳期肺泡上皮高度分别为10.290±1.01µm和23.012±2.81µm。未成熟和泌乳母羊的叶间组织厚度分别为677.393±23.67µm和361.401±10.86µm。未成熟和哺乳期小叶间结缔组织厚度分别为112.969±11.48µm和90.281±9.81µm。
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