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EFFICACY ASSESSMENT OF BEETROOT EXTRACT IN REGULATING IRON DEFICIENCY ANEMIA IN ANEMIC RATS 甜菜根提取物调节贫血大鼠缺铁性贫血的疗效评价
Pub Date : 2023-03-01 DOI: 10.57041/pjs.v75i1.826
Z. A. Ali, A.Bilal
Objective: Comparison of beetroot extract and iron supplement (Iberet Folic) effects on iron andhaemoglobin levels among iron deficient anaemic rats.Methodology: In this study a natural source of iron, beetroot extract, and iron supplement (Iberetfolic) was administrated to phenyl-hydrazine induced anaemic rats for 21 days. Beetroot was firstdried, powdered, then extracted by ethanol.Results: The beetroot in current experimental study showed improvements in haemoglobin, red bloodcells, and iron serum as mean values of 23.8±0.69 g/dL, 15.16 ±0.54 106 /μL, and 31.5 ±1.5 μg/dL,respectively. As compared to beetroot, minor changes could be seen in mean values of haemoglobin,red blood cells, and serum iron of iron supplemented anaemic rats as; 22.4 ±0.443 g/dL, 13.69 ±0.5106 /μL, and 30.1 ±0.9 μg/dL, correspondingly.Conclusion: The Beetroot extract in this study presented as a viable replacement to the conventionallocal iron supplement.
目的:比较甜菜根提取物和铁补充剂(Iberet Folic)对缺铁贫血大鼠铁和血红蛋白水平的影响。方法:在本研究中,将天然铁源、甜菜根提取物和铁补充剂(Iberetfolic)给予苯肼诱导的贫血大鼠21天。首先将甜菜根干燥,制成粉末,然后用乙醇提取。结果:本实验中甜菜根对血红蛋白、红细胞和铁血清的改善作用,平均值分别为23.8±0.69 g/dL、15.16±0.54 106 /μL和31.5±1.5 μ dL。与甜菜根相比,补铁的贫血大鼠血红蛋白、红细胞和血清铁的平均值变化较小;分别为(22.4±0.443)g/dL、(13.69±0.5106)g/dL、(30.1±0.9)g/dL。结论:本研究中甜菜根提取物可作为常规局部补铁剂的可行替代品。
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引用次数: 0
PREVALENCE AND CHEMOTHERAPY OF COCCIDIAL INFECTIONS IN BROILERS IN MUZAFFARABAD 穆扎法拉巴德肉鸡球虫感染的流行及化疗
Pub Date : 2023-03-01 DOI: 10.57041/pjs.v75i1.820
Z.H.Awan, M.A.A.Shah, M.A.Zafar, A.A.Farooq, M.Shoaib, M.Kamran, M.F.Iqbal, R.Hussain, M.A.Khan, M.A.Javid, T.Mukhtar, Murtaz-ul-Hassan, S.G. Mohyuddin
The present study was performed to know the prevalence of coccidiosis and efficacyof anti-coccidial drugs in the capital city of Muzaffarabad, Azad Kashmir, Pakistan. A total of 573broiler birds of different age groups were sampled from the study area farms and processedaccordingly. Fecal flotation and McMaster egg counting techniques were used for Oocystidentification and counting, respectively. Postmortem of birds was performed to know the lesions and type of coccidiosis present in the birds. Drug trial was also carried out to evaluate the efficacy of anti-coccidial drugs available in the study area market. An overall 19.37% (111/573) prevalence of Coccidiosis was observed in study area. Among different age groups, broilers below three weeks ofage were found more susceptible to infection. During summer season higher prevalence was recorded.Different risk factors were found associated with coccidial infection in the study area. Fiveanticoccidial drugs available in the market have been found effective with different efficacy level.Among the anticoccidial drugs used during the present investigation, Sulphadimerazine 86% hadshown better effect. Besides these anticoccidial drugs, a herbal plant locally known as Sumbal was alsoused and found potent against Coccidiosis. This is a good alternate choice used in field conditionsalong with synthetic anti-coccidial for the treatment and control of coccidiosis. It was deduced thatprevalence of coccidiosis recorded in study area was comparatively lower than prevalence recorded inother parts of the world. Furthermore, Sulphadimerazine 86% have shown comparatively betterefficacy than other drugs.
本研究旨在了解巴基斯坦首都穆扎法拉巴德、阿扎德克什米尔地区球虫病的流行情况和抗球虫药物的疗效。从研究区农场共抽取573只不同年龄段的肉鸡,并进行相应处理。卵囊鉴定采用粪浮法,计数采用麦克马斯特计数法。对鸟类进行尸检,以了解鸟类中存在的病变和球虫病类型。还进行了药物试验,以评价研究地区市场上可用的抗球虫药物的疗效。研究区球虫病总患病率为19.37%(111/573)。在不同的年龄组中,三周龄以下的肉鸡更容易感染。在夏季,发病率较高。在研究地区发现不同的危险因素与球虫感染相关。市面上的五种抗球虫药物均有不同的疗效。在本研究中使用的抗球虫药物中,磺胺二嗪86%的疗效较好。除了这些抗球虫药物外,还使用了一种被当地称为松巴尔的草药植物,并发现它对球虫病有很强的抑制作用。在田间条件下与合成抗球虫药一起治疗和控制球虫病是一种很好的替代选择。结果表明,研究区球虫病的流行率低于世界其他地区。此外,磺胺二嗪86%的疗效相对优于其他药物。
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引用次数: 0
HISTOPATHOLOGICAL CHANGES IN THE UTERUS OF INFERTILE SLAUGHTERED BUFFALOES 屠宰的不育水牛子宫的组织病理学改变
Pub Date : 2023-03-01 DOI: 10.57041/pjs.v75i1.830
M. Ihtisham ul huq, A.A.Channa, R.Yousaf, N.Ullah, R.Khan, M.H.Ali, G.Abbas, B.Khan
Agribusiness is the foundation of Pakistan's economy as it contributes 18.9 percentto the nation's GDP. Buffalo is a significant investor with a populace of 38.8 million heads. Theprofitable characteristics of Nili Ravi wild ox are inimitable with some other buffalo breeds on theplanet, while the conceptive qualities are still nadir. The most widely recognized regenerative issuesexperienced are postponed time of pubescence, helpless estrus articulation, low ripeness with AI,deferred baby blues anestrous, and irregularity. These attributes have made it amazingly hard toincrease quick hereditary advancement in this variety. Conceptive biotechnologies assume a key job inbreed improvement by bypassing these obstacles. For this study eighty animals were selected andslaughtered due to reproductive issues and reproductive tracts were collected from the slaughterhouseand observe the tract grossly (texture and shape, any exudate, ovarian structures). Then cut the uterinetissue sample with the size of 2 × 2 × 2cm was fixed in formalin 10% for histopathology. Afterprocessing microscopy was performed to find histopathologic changes (Endometrial epithelium,uterine gland, and inflammatory cells and caruncles status). The grading of animals is labeled asNormal (-), Mild (+), Moderate (++), and Severe (+++) on basis of the degree of infection. The whiteside test was negative for 40% of samples while 60% of animals are positive with different degrees ofaffection. Endometrial epithelium erosion is absent in 31.43% of animals while 68.67% of animalshave erosions. Atrophy of uterine glands was absent in 41.43% of animals while 58.67% of animalscontained atrophy of glands. 11.43% of animals were negative for inflammatory cells while 88.66% ofanimals were positive for inflammatory cells. 20% of animals had normal caruncles while 80% ofanimals had swelled caruncles. Discharge was collected for the white side test from the cervix. 62.86%of animals had serious discharge while 37.14% of animals had a purulent discharge. The color andtexture of the tract are divided into two categories pale and pale reddish with swelling. 54.74% had apale color while 45.26% had a pale and reddish with swelling. In conclusion, 60% of animals wereaffected by endometritis including mild, moderate, and severe. Histopathological parameters and thenature of exudate also showed a significant relationship with endometritis which was indicated by thewhite side test. The treatment of endometritis should be done after the white side test beforeinsemination. In this way, we can improve reproductive performance and conception rate. Furtherstudies are warranted to perform the culture sensitivity test and treat the animals with intra-uterine andsystemic antibiotic therapy.
农业综合企业是巴基斯坦经济的基础,占全国GDP的18.9%。布法罗是一个重要的投资者,拥有3880万人口。尼利拉维野牛的盈利特征是地球上其他水牛品种无法模仿的,而概念质量仍然是最低的。最常见的再生问题是:发育期推迟、发情无力、AI的低成熟度、婴儿忧郁期推迟、月经不调和不规则。这些特性使得在这个品种中增加快速遗传进步变得异常困难。通过绕过这些障碍,概念性生物技术承担了近交改良的关键工作。本研究选择80只因繁殖问题而屠宰的动物,从屠宰场收集生殖道,并粗略观察生殖道(质地和形状,任何渗出物,卵巢结构)。切取子宫组织标本,尺寸为2 × 2 × 2cm, 10%福尔马林固定,进行组织病理学检查。后处理显微镜检查组织病理学变化(子宫内膜上皮、子宫腺、炎症细胞和结节状态)。根据感染程度将动物分为正常(-)、轻度(+)、中度(++)和重度(+++)。怀特塞德测试对40%的样本呈阴性,而60%的动物在不同程度的影响下呈阳性。31.43%的动物没有子宫内膜上皮糜烂,68.67%的动物有糜烂。41.43%的动物未见子宫腺萎缩,58.67%的动物有子宫腺萎缩。11.43%的动物炎性细胞阴性,88.66%的动物炎性细胞阳性。20%的动物有正常的结节,而80%的动物有肿胀的结节。从子宫颈收集分泌物进行白侧试验。62.86%的动物有严重分泌物,37.14%的动物有脓性分泌物。尿路的颜色和质地分为两类:苍白和淡红色伴肿胀。54.74%为淡黄色,45.26%为淡红色伴肿胀。总之,60%的动物受到子宫内膜炎的影响,包括轻度、中度和重度。组织病理学参数和渗出物的性质也显示与子宫内膜炎有显著关系,这是白侧试验所指示的。子宫内膜炎的治疗应在授精前进行白侧检查后进行。这样可以提高生殖性能和受孕率。进一步的研究需要进行培养敏感性试验,并对动物进行子宫内和全身抗生素治疗。
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引用次数: 0
EMPLOYEE AND EMPLOYERS ROLE IN ENSURING SAFE WORKING ENVIRONMENT BY MAINTAINING HEALTH AND SAFETY AT WORKPLACE 雇员和雇主通过维护工作场所的健康和安全,在确保安全工作环境方面的作用
Pub Date : 2023-03-01 DOI: 10.57041/pjs.v75i1.828
M. Asad, A. Ali, A. Mushtaq, R. Ullah
The area of occupational health and safety encompasses efforts to ensure thephysical, mental, and emotional well-being of workers worldwide. Every human organization hasgenuine reasons to be concerned about its employees' health and safety. Management should place ahigh value on health and safety programs for workers since they have the potential to save lives,continue strengthening, and decreased costs. This article's purpose is to research and assess thecompany's safety procedures, strategies, and policies. The goal of an industry's safety managementprogram is to create a workplace in which every employee can do their job without risk to their healthor safety.
职业健康和安全领域包括努力确保全世界工人的身体、精神和情感健康。每个人类组织都有真正的理由关心员工的健康和安全。管理层应该高度重视工人的健康和安全计划,因为它们有可能挽救生命,继续加强和降低成本。本文的目的是研究和评估该公司的安全程序、策略和政策。行业安全管理计划的目标是创造一个工作场所,让每个员工都能在没有健康或安全风险的情况下工作。
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引用次数: 0
RESPONSE OF CHICKPEA GENOTYPES TO DROUGHT STRESS IN PETRI DISH ENVIRONMENT 鹰嘴豆基因型对培养皿环境干旱胁迫的响应
Pub Date : 2023-03-01 DOI: 10.57041/pjs.v75i1.818
J. Gul, Midrarullah, S.H.Shah
Chickpea (Cicer arietinum L.), an important leguminous crop has a dwindling croparea everyday due to climate change, and the overall yield has declined. In a controlled conditionexperiment, four distinct levels of drought were applied to ten different varieties of chickpeas in a petridish using polyethylene glycol (PEG) @ 0, 10, 20, and 30%. As differentiating factors, germinationrate, plumule, and radicle lengths were used. The experiment's results showed that, at 0% PEG, KK-2and Punjab-2008 demonstrated the highest germination rates (99%), while the lowest (0%)germination rates at (30% PEG) were recorded for Chattan and KK-1 genotypes. At 0% polyethyleneglycol (PEG), Chattan and Punjab-2008 had the maximum plumule (0.70 cm) and radicle (7.47 cm)lengths, respectively and with increasing drought they got reduced. Thus, it may be inferred thatdrought impacted negatively but its impact can be lessened by adopting genotypes that are droughtresistant.
鹰嘴豆是一种重要的豆科作物,由于气候变化,鹰嘴豆的种植面积日益减少,总体产量下降。在一项受控条件实验中,在培养皿中使用聚乙二醇(PEG) @ 0、10、20和30%,对十种不同品种的鹰嘴豆施加四种不同程度的干旱。以发芽率、胚芽和胚根长度作为区分因素。试验结果表明,在PEG为0%时,kk -2和Punjab-2008的发芽率最高(99%),而Chattan和KK-1的发芽率最低(0%)。在0%聚乙二醇(PEG)条件下,Chattan和Punjab-2008的子芽和胚根长度最大,分别为0.70 cm和7.47 cm,随着干旱程度的增加,子芽和胚根长度减小。因此,可以推断,干旱的影响是负面的,但其影响可以通过采用抗旱基因型来减轻。
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引用次数: 0
PRINCIPAL COMPONENT ANALYSIS OF KAIL SHEEP BASED ON BODY MEASUREMENTS 基于体型测量的鹌鹑羊主成分分析
Pub Date : 2023-02-03 DOI: 10.57041/pjs.v74i4.801
Z. H. Kuthu, Z.Ahmed, M.Nawaz, G.Bila, M.Zubair, I.Ahmed, F.A.Kiani, M. Ikram
The information on principal component analysis (PCA) of kail sheep was generated using 16 different morphomteriacal traits. A total of 368 Kail sheep individuals were selected from different ecological zone of Azad Jammu Kahmir during the summer of 2020. The coefficient of correlation between these traits were found highly correlate with other morphometric traits of this breed. The PC extract two components and explaning total variance of 67 % and 60% respectively. PC1 has high variance while PC2 high association eith these traits. The application of PC analysis in kail sheep reduce the number of factor and variable a draw a more informative information about morphometric traits. These component can be used in breeding and conservation programme of this breed.
利用16个不同的形态物质性状对开山羊进行主成分分析(PCA)。2020年夏季,在Azad Jammu Kahmir不同生态区选取了368只凯尔羊。这些性状之间的相关系数与该品种的其他形态计量性状高度相关。PC提取了两个分量,解释总方差分别为67%和60%。PC1与这些性状的相关性较高,而PC2与这些性状的相关性较高。PC分析的应用减少了因子和变量的数量,得到了更多的形态计量性状信息。这些成分可用于该品种的育种和保护计划。
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引用次数: 0
EFFECT OF SUPPLEMENTATION OF MINERALS ON THE PRODUCTIVE AND REPRODUCTIVE PERFORMANCE OF LACTATING CATTLE AND BUFFALO 补充矿物质对泌乳牛和水牛生产和繁殖性能的影响
Pub Date : 2023-02-03 DOI: 10.57041/pjs.v74i4.803
M. Tariq, G.Abbas, S.Ahmad, R.Mustafa, H.Sultan, M.Abdullah, I.Hussain, M.Arshad, U.Bashir Cheema, S.U.Hassan
A significant part of a complete dairy feeding program is the mineral-vitamin component. Physiologically, minerals are involved in reproduction, lactation, cow/calf health during pregnancy and cow recovery after calving and general herd health. Highly productive dairy animals have much greater needs for minerals and vitamins than low-producing.Concentrations of minerals andvitamins in feeds can be extremely variable. Dairy animals commonly need 3 vitamins and 17 mineral for their optimal productivity. Even the deficiency of any of these can result in health, reproduction and milk production problems. The antioxidant, vitamin E and carotene are beneficial in reducing mastitis. Vitamins (D, E, C and carotene) and minerals (Cu, Zn, and Se) are needed for enhanced immune response.Almost all the members of B.comlex group, C vitamin K2 are synthesized in rumenbut ruminant diet should contain sufficient cobalt for B12 synthesis. Vitamin A is neither synthesized in the body nor contributed by bacteria and it is the only vitamin, which may be deficient supply under many conditions. Therefore its supply seems to be critical.Vitamin E content of forage is highly variable and is effective in reducing gossypol toxicity. Generally it is assumed that the dairy animals with functional rumen do not develop deficiency. Different research reports suggest the need for supplemental biotin, thiamin and niacin for dairy cattle. Pre-partum anionic diets should be supplemented to avoid Milk fever. High phosphorus diets do not improve milk production or reproduction but there is environmental concern from use of excess P. Manganese has its role in ovulation and fertility of dairy animals. Grazing dairy animals should have access to high quality freechoice mineral mixtures. Mineral and Vitamin supplementation should especially be managed before the periods of increased trace mineral demand such as calving, joining, dry-off and growth.
一个完整的乳制品喂养计划的重要组成部分是矿物质维生素成分。从生理上讲,矿物质与繁殖、哺乳、怀孕期间奶牛/小牛的健康、产犊后奶牛的恢复以及牛群的总体健康有关。高产奶牛比低产量奶牛对矿物质和维生素的需求要大得多。饲料中矿物质和维生素的浓度变化很大。奶牛通常需要3种维生素和17种矿物质才能达到最佳生产效率。即使缺乏其中任何一种,也会导致健康、生殖和牛奶生产问题。抗氧化剂、维生素E和胡萝卜素对减轻乳腺炎有益。维生素(D、E、C和胡萝卜素)和矿物质(铜、锌和硒)是增强免疫反应所必需的。复合体b族、C族、维生素K2几乎所有的成员都是在瘤胃中合成的,但反刍动物的日粮中应含有足够的钴以供B12的合成。维生素A既不能在体内合成,也不能由细菌贡献,它是唯一的维生素,在许多情况下可能会供应不足。因此,它的供应似乎至关重要。饲料中维生素E含量变化很大,可有效降低棉酚毒性。一般认为,具有功能性瘤胃的奶牛不会出现缺乏症。不同的研究报告表明,奶牛需要补充生物素、维生素a和烟酸。产前应补充阴离子饮食,避免乳热。高磷饲粮不能提高产奶量或繁殖能力,但过量磷的使用对奶牛的排卵和生育有一定的影响。放牧的奶牛应该有机会获得高质量的自由选择矿物混合物。矿物质和维生素的补充尤其应在微量矿物质需求增加的时期(如产犊、加入、干干和生长)之前进行。
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引用次数: 0
GIS BASED FREQUENCY DISTRIBUTION OF WINGLESS INSECTS INFESTING DOMESTIC POPULATION OF DOGS IN LAHORE, PUNJAB, PAKISTAN 基于Gis的无翅昆虫在巴基斯坦旁遮普省拉合尔侵害家养犬群的频率分布
Pub Date : 2023-02-03 DOI: 10.57041/pjs.v74i4.796
R. M. Siddique, A.Iqbal, M.Arshad, J.U.Rehman, G.Abbas, M.A.Munir, T.Fatima, F.Siddique, N.Iqba, U.Mehboob
The intent of the present study was conducted (January, 2020 to December, 2020) to estimate the prevalence of wingless insects in dog population and to identify the potential risks factors in selected areas of Lahore, Punjab, Pakistan. Results of the study revealed an overall prevalence of wingless insects 50.16% (1204/2400) in dogs of study area. Among various insects, fleas were found predominant (28.5%; 684/2400; P<0.05) as compared to lice (21.66%; 520/2400). Among the reported species 4 were wingless insects (Ctenocepahlides (Ct.) felis, Ct, canis, Linognathus setosus and Trichodectes canis). Breed, age and sex of host were not found to be related with risk factors (P>0.05) affecting incidence of wingless insects. These inscets effect different body parts differently as highest prvelance was noted at neck (15%) and back (11.5%) followed by abdomen (10%) and ear (7.4%).Prevelence of the ectoparasites was found to be 6.2% at forelegs and 4% in congenital area, 4% around the shoulder and 6% around the hind legs, however, tail area was minimally affected (1.2%). Prevelance of Ct. felis was noted to be 35.96, Ct. canis 68.43%, Linognathus setosus 21.1% and Trichodectes canis 78.8%. Town wise incidences were found to be highest in Shalimar Town (62.91%) followed by Wagha Town (59.58%), Aziz Bhatti(59.16%), Data Ganj Bakhsh (55.41%), Nishtar Town (46.66%), Samanabad (44.3%), Iqbal Town (43.6%), Ravi Town (42%), Lahore Cantonment (41.6%) and Gulberg (40.4%). Rate of ectoparasites infestation was observed higher (P<0.05) in stray dogs (80.36%) followed by guard dogs (63.7%), hunting dogs (37.5%) and pet dogs (35.66%). Amongst the different seasons, rainy season showed higher lice prevalence (26.1%; 157/600), fleas (37.8%; 227/600), as compared to summer season and spring. Though, summer season was found to be unfavourable for the increase of almost all these insects. Comparative results of blood profile revealed significant difference (P<0.05) between non-infested and infested dogs, in the sort of lower value of infested/infected animals. To control the prevelance and ultimate effect of wingless insects on dog population applicable a well planned and control startegies as well as extension facilities should be arranged. Pet owners should be provided awareness about the significance of controlling the wingless insects to keep the pets and owner healthy.
本研究于2020年1月至2020年12月在巴基斯坦旁遮普省拉合尔选定地区进行,目的是估计犬类中无翅昆虫的流行情况,并确定潜在的危险因素。研究结果显示,研究区犬类无翅昆虫总患病率为50.16%(1204/2400)。各类昆虫中以蚤类为主,占28.5%;684/2400;P0.05)影响无翅昆虫的发病率。这些昆虫对不同身体部位的影响不同,最高的是颈部(15%)和背部(11.5%),其次是腹部(10%)和耳朵(7.4%)。前肢、先天性、肩周、后肢周围分别有6.2%、4%、6%的体表寄生虫,而尾部受影响最小(1.2%)。Ct的患病率。费利斯的年龄为35.96岁。狗68.43%,狗毛虫21.1%,狗毛虫78.8%。城镇发病率最高的是Shalimar镇(62.91%),其次是Wagha镇(59.58%)、Aziz Bhatti(59.16%)、Data Ganj Bakhsh(55.41%)、Nishtar镇(46.66%)、Samanabad(44.3%)、Iqbal镇(43.6%)、Ravi镇(42%)、Lahore Cantonment(41.6%)和Gulberg(40.4%)。流浪犬体外寄生虫感染率最高(80.36%),其次为看守犬(63.7%)、猎犬(37.5%)和宠物犬(35.66%)。不同季节中,雨季虱率最高(26.1%);157/600),跳蚤(37.8%;227/600),与夏季和春季相比。然而,人们发现夏季对几乎所有这些昆虫的增加都不利。血谱比较结果显示,未感染犬和感染犬在感染/感染动物低值类型上差异有统计学意义(P<0.05)。为了控制无翅昆虫对犬类的流行和最终影响,应制定周密的控制策略和安排推广设施。应让宠物主人了解控制无翅昆虫的重要性,以保持宠物和主人的健康。
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引用次数: 0
USHER SYNDROME AND ITS GENETIC CHARACTERIZATION Usher综合征及其遗传特征
Pub Date : 2023-02-03 DOI: 10.57041/pjs.v74i4.802
A. Mahmood, F.Mahmood, M.N.Faisal, A.Mahmood, H.Muzaffar, M.Mahmood, G.Abbas, T.Mahmood, M. Arshad
Usher syndrome is defined as an autosomal recessive disorder which is caused by a mutation in any one of at least 10 genes resulting in a combination of hearing loss and visual impairment. The loss of hearing is caused by a defect in the inner ear, whereas degeneration of the retinal cells called retinitis pigmentosa (RP), results in loss of vision. Based on severity and age whensigns and symptoms appear, there are three clinical subtypes of Usher syndrome (characterized as Usher I, II, and III). People suffering from Usher I are deaf by birth and during the first decade of life, they begin to lose their vision. Balance difficulties are also exhibited by them. Patients with Usher II have hearing loss but they are not deaf by birth. They also lose their vision later on. They do not show problems with balance. People having Usher syndrome III lose their vision and hearing gradually but they are not born deaf; they may or may not show difficulties with balance. In this review, those mouse models for usher syndrome will be discussed in which homologue of humans was identified first and a model called, “mouse model” was based upon gene defects in the human beings.
Usher综合征被定义为一种常染色体隐性遗传病,由至少10种基因中的任何一种突变引起,导致听力损失和视力障碍。听力的丧失是由内耳的缺陷引起的,而视网膜细胞的退化被称为视网膜色素变性(RP),导致视力的丧失。根据症状和体征出现的严重程度和年龄,Usher综合征有三种临床亚型(特征为Usher I, II和III)。患有Usher I的人出生时耳聋,在生命的前十年开始失去视力。平衡困难也表现在他们身上。Usher II型患者听力受损,但并非天生失聪。之后他们也会失去视力。他们没有表现出平衡方面的问题。患有Usher III型综合症的人逐渐丧失视力和听力,但他们并非天生失聪;他们可能会也可能不会表现出平衡方面的困难。本文将对首次发现人类同源物和基于人类基因缺陷建立的小鼠模型进行综述。
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引用次数: 0
EFFECT OF XYLO-OLIGOSACCHARIDE AND XYLANASE SUPPLEMENTATION ON GROWTH PERFORMANCE, CARCASS CHARACTERISTICS, NUTRIENT DIGESTIBILITY, AND INTESTINAL HISTOLOGY OF BROILERS 添加低聚木糖和木聚糖酶对肉鸡生长性能、胴体特性、营养物质消化率和肠道组织学的影响
Pub Date : 2023-02-03 DOI: 10.57041/pjs.v74i4.800
S. A. Afzal, U.Farooq, M.F.Khalid, S.L.Butt, G.Abbas
The present study was conducted to investigate the effect of xylo-oligosaccharide and xylanase supplementation on growth performance, carcass characteristics, nutrient digestibility, and intestinal histology of broilers. Six hundred day-old chicks (ROSS-308) were divided into four experimental groups (i.e. T1, T2, T3, and T4). Each experimental unit had six replicates of 25 chicks/replicate. Following treatments were offered: T1= positive control (PC, commercial diet); T2=negative control (NC, basal diet); T3= NC+Signis®; T4= NC+XOS+Xylanase. The experiment was conducted from 1 to 35 days of broiler age and during this trial data regarding growth performance (feed intake, weight gain) was recorded and the feed conversion ratio was calculated. At the end of the experiment, 2 birds from every replicate were randomly selected and slaughtered to get data on carcass characteristics and giblet's weight. Intestinal tissues (duodenum, jejunum, and ileum) were also collected for histological analysis. Digestibility data was collected toward the end of the experiment to estimate nutrient digestibility. The data so generated were analyzed using the General Linear Model procedure of SPSS, 18.0, and the mean was compared using Tukey’s test. Results showed that duringthe starter phase, the effect of the treatments was non-significant for mortality and feed conversion ratio whereas a significant effect was observed for body weight gain and feed intake. Treatment C had significantly higher feed intake whereas for body weight treatments C and D had significantly higher body weight than positive and negative control groups. During the grower phase, the effect of the treatment was significant for mortality where treatments C had significantly higher mortality comparedwith all other treatments. The effect of the treatments was significant on body weight gain during the grower phase where treatment D had a significantly higher body weight compared with treatment The effect of the treatments was non-significant on the feed intake and feed conversion ratio. During the finisher phase, the effect of the treatments was significant on mortality where treatment D had the highest mortality followed by treatment A. Treatments C B and C showed no mortality during thefinisher phase of the study. The effect of the treatments was significant on FCR during the finisher phase. Treatments B and C had significantly poor FCR compared with treatment A while treatment D had non-significant differences with all other treatments. The effect of the treatments was nonsignificant for body weight and feed intake during the finisher phase. For carcass characteristics and intestinal histology, none of the treatments showed any significant difference. Keeping in view the dataon growth performance we concluded that the supplementation of these enzyme energy contents of the feed can be decreased without affecting the performance of the broilers.
本试验旨在研究饲粮中添加低聚木糖和木聚糖酶对肉鸡生长性能、胴体特性、营养物质消化率和肠道组织学的影响。600日龄鸡(ROSS-308)分为T1、T2、T3、T4 4个试验组。每个试验单元设6个重复,每个重复25只鸡。分别给予以下处理:T1=阳性对照(PC,商品日粮);T2=阴性对照(NC,基础日粮);T3 =数控+价格®;T4 =数控+装置+木聚糖酶。试验于肉鸡日龄1 ~ 35日龄进行,记录生长性能(采食量、增重)数据并计算饲料系数。试验结束时,每个重复随机选取2只鸡屠宰,测定胴体性状和仔猪体重。收集肠组织(十二指肠、空肠和回肠)进行组织学分析。在试验结束前收集消化率数据,以估计营养物质的消化率。所得数据采用SPSS 18.0通用线性模型程序进行分析,均数比较采用Tukey检验。结果表明,在发育期,各处理对死亡率和饲料系数影响不显著,但对增重和采食量有显著影响。处理C的采食量显著高于对照组,而体重处理C和D的体重显著高于阳性和阴性对照组。在生长阶段,处理对死亡率的影响是显著的,其中处理C的死亡率明显高于所有其他处理。各处理对生长阶段体重增加的影响显著,其中D处理的体重显著高于其他处理,而对采食量和饲料系数影响不显著。在结束阶段,治疗对死亡率的影响是显著的,其中治疗D的死亡率最高,其次是治疗a。治疗C、B和C在研究的结束阶段没有显示死亡率。各处理对肥育期FCR的影响显著。治疗B和C与治疗A相比FCR明显差,而治疗D与所有其他治疗无显著差异。各处理对肥育期体重和采食量的影响不显著。在胴体特征和肠道组织学方面,各处理均无显著差异。从肉鸡生长性能的数据来看,在不影响肉鸡生产性能的情况下,可以降低饲粮中这些酶能含量。
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Pakistan journal of science
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