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Effect of corn grain in a wet soya waste based total mixed ration silage on goat performance 湿豆渣中添加玉米籽粒对山羊生产性能的影响
Pub Date : 2021-07-17 DOI: 10.47253/JTRSS.V6I2.569
M. M. Rahman, Mohd Shahmi Hakimi Mazlishah, W. Khadijah, R. Abdullah
The utilisation of wet soya waste as feed is low due to difficulties of storage and transportation,which needs to reach normal technical standard and comprehensive utilisation. The aim of thisstudy was to investigate the effect of cracked corn grain as a source of moisture absorbent andenergy in a wet soya waste based total mixed ration silage on goat performance. Ten growing goatswere assigned to two feeding treatment groups for 84 days. Goats in Group 1 received Napier grass(Pennisetum purpuerum) ensiled with 30% soya waste (w/w) and 8% molasses (w/w) (T1) ascontrol, and Group 2 received same grass ensiled with 30% soya waste (w/w) and 15% crackedcorn grain (w/w) (T2). All goats received their respective silage ad libitum after 2 months offermentation. The pH in T1 silage was 4.1, while pH in T2 silage was 4.0. Goats fed T2 diet showedhigher intakes of dry matter, organic matter and metabolisable energy than those of goats fed T1diet, while it was observed vice versa for neutral detergent fibre intake. However, there was nodifference in average daily gain and feed conversion ratio between two treatment diets. Results ofthis study indicate that cracked corn grain, as a source of moisture absorbent and energy, can beused successfully in wet soya waste based total mixed ration silage for growing goats.
湿豆渣作为饲料,由于储运困难,利用率较低,需要达到正常的技术标准和综合利用。本试验旨在研究在湿豆渣为基础的全混合日粮青贮中添加玉米籽粒作为吸湿剂和能量源对山羊生产性能的影响。将10只生长山羊分为两组,饲喂84 d。组1饲喂以30%大豆废料(w/w)和8%糖蜜(w/w)青贮的纳皮草(Pennisetum purpuerum)作为对照(T1),组2饲喂以30%大豆废料(w/w)和15%玉米颗粒(w/w)青贮的相同草(T2)。饲喂2个月后,山羊自由饲喂青贮饲料。T1青贮pH为4.1,T2青贮pH为4.0。T2饲粮的干物质、有机物和代谢能采食量均高于t1饲粮,中性洗涤纤维采食量则相反。两种饲粮的平均日增重和饲料系数无显著差异。结果表明,玉米籽粒作为吸湿剂和能量来源,可以成功地用于生长山羊湿豆渣全混合日粮青贮。
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引用次数: 0
Brine shrimp lethality test of various Cinnamomum iners (Lauraceae) barks extracts 不同桂皮提取物的盐水对虾致死试验
Pub Date : 2021-07-17 DOI: 10.47253/JTRSS.V6I2.573
I. Wahab, Mohammad Faizul Hussain
Cinnamomum iners (Lauraceae) is a traditional plant that widely used to relieve headache, breathingand appetite problems. This plant has been used over the centuries on several illnesses with bacterialsymptoms such as fevers, digestive ailments and coughs. However, lack of scientific studies havebeen conducted to identify its toxicity. Thus, an evaluation on the toxicity of this plant extracts iscrucial to support its therapeutic claims as well as to ensure that there was no side effects toconsumers. Various extracts from C. iners barks were screened for their toxicity against brineshrimp using the brine shrimp lethality test. All extracts exhibited very high LC50 (50% lethalconcentration) values greater than 1mg/ml (1000 ?g/ml) with the hexane extracts showed thehighest toxicity to the brine shrimp with LC50 value of 1306.79 ?g/ml, while the lowest toxicitywas the ethyl acetate extract at 3370.13 ?g/ml. This finding corroborates the traditional uses of thisplant and could be developed as another alternative natural sources in treating various diseases.
肉桂(樟科)是一种传统植物,广泛用于缓解头痛、呼吸和食欲问题。几个世纪以来,这种植物一直被用于治疗发烧、消化系统疾病和咳嗽等几种细菌症状的疾病。然而,缺乏科学研究来确定其毒性。因此,对这种植物提取物的毒性进行评估对于支持其治疗主张以及确保对消费者没有副作用至关重要。采用盐水对虾致死试验,筛选了不同提取物对盐水对虾的毒性。所有提取物的LC50(50%致死浓度)值均大于1mg/ml (1000 μ g/ml),其中己烷提取物对卤虾的毒性最高,为1306.79 μ g/ml,乙酸乙酯提取物的毒性最低,为3370.13 μ g/ml。这一发现证实了这种植物的传统用途,可以作为治疗各种疾病的另一种替代天然来源。
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引用次数: 0
Effects of parity and body condition score (BCS) on oestrus expressions and post breeding reproductive performance of Katjang crossbred goat 胎次和体况评分(BCS)对加江杂交山羊发情表达和繁殖性能的影响
Pub Date : 2021-07-17 DOI: 10.47253/JTRSS.V6I2.567
Intan Sofienaz Ahmad Fuad, K. Mat, N. Rusli, H. Harun
This experiment goal was to identify the effect of parity and body condition score (BCS) on oestrusexpressions (OE), post breeding reproductive performance (PBRP) of Katjang crossbred andchanges of progesterone (P4) concentration. Twenty-four does were treated with 14 dayssynchronisation followed by visual observation of oestrus expressions (standing heat (SH),mounted by other buck but not standing (MBNS), vocalization (VC), tail swaging (TW), andsniffing of the genital of other buck (SGB)) and blood sampling twice daily up to 72 hours followingControl Internal Drug Release (CIDR) removal. PBRP data was recorded for evaluation whichincluded pregnancy rate (PR), abortion rate (AR), mortality rate (MR), litter size (LS), litter birthweight (LBW) and gestation length (GL). Result revealed that there was no significant effect(P>0.05) of parity and BCS on OE, PBRP and progesterone concentration except for birth weightwhich had been affected by parity. Based on observation of OE of SH, it was found that accuracyof pregnancy prediction was up to 50%. Analysis of OE established reliability of OE in wassequence from SH>SGB>TW>MBNS>VC and onset of oestrus began approximately 33h post toCIDR removal. Analysis of PBRP shown parity?2 had heavier birth weight in single litter size thanparity?3 which was associated with no MR. Progesterone concentration indicated all of the doeswere on oestrus and highly susceptible as early as 48 h post to CIDR removal. In conclusion, thisstudy demonstrated that both non-genetic factors; parity and BCS are very poor in determining theeffect of OE, PBRP and P4 concentration due to limitation of sample size and greater influences ofexternal factors such as weather, extreme environmental condition and farm management. It isrecommended to improve program in future by focusing on enhancing the fertilization rate andreducing embryonic loss for optimum conception rate.
本试验旨在探讨胎次和体况评分(BCS)对加江杂交母羊发情表达(OE)、种后繁殖性能(PBRP)及孕酮(P4)浓度变化的影响。24只母鹿进行14天的同步处理,随后观察发情表达(站立热度(SH),被其他雄鹿骑着但不站立(MBNS),发声(VC),摇尾(TW),和嗅闻其他雄鹿生殖器(SGB)),并在控制内药物释放(CIDR)去除后72小时内每天两次采血。记录PBRP数据,包括妊娠率(PR)、流产率(AR)、死亡率(MR)、产仔数(LS)、产仔出生重(LBW)和妊娠期长(GL)。结果显示,胎次和胎龄对OE、PBRP和孕酮浓度均无显著影响(P>0.05),但出生体重受胎次影响较大。通过对孕激素OE的观察,发现妊娠预测准确率可达50%。OE分析证实OE的可靠性,OE的顺序为SH>SGB>TW>MBNS>VC,并且在cidr去除后约33h开始发情。PBRP分析显示平价?2胎重的出生体重比胎重?3,与无mr孕酮浓度相关,表明所有的大鼠都处于发情期,早在48 h后就对CIDR去除非常敏感。总之,本研究表明,非遗传因素;由于样本量的限制以及天气、极端环境条件和农场管理等外部因素的影响较大,parity和BCS在确定OE、PBRP和P4浓度的影响方面非常差。建议今后在提高受精率和减少胚胎丢失方面进行改进,以达到最佳受精率。
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引用次数: 2
The classical mechanics engineered of Bambusa vulgaris and Schizostachyum brachycladum 竹材和短枝裂竹的经典力学工程
Pub Date : 2021-07-17 DOI: 10.47253/JTRSS.V6I2.561
M. S. Sulaiman, S. F. M. Ramle, R. Hashim, O. Sulaiman, M. Amini, J. G. Boon
Physical and mechanical properties of Bambusa vulgaris and Schizostachyum brachycladum wereinvestigated. The sample were classified into two different ages which are young and mature foreach culm of bamboo. The aim of this study to investigate the physical properties such as density,basic density, moisture content, water absorption and thickness swelling. Other than that, themechanical properties also help to determine their flexural test for modulus of rupture (MOR) andmodulus of elasticity (MOE). The method used to analyse physical and mechanical properties werefollowing the ISO standard. From this study, young Bambusa vulgaris has indicated the highercontent of moisture content, water absorption and thickness swelling with 67.66%, 2.69% and34.03%, respectively while mature Schizostachyum brachycladum has shown the higher value inbasic density, density, and flexural test for MOR and MOE with 876.33 kg/m3, 1084.49 kg/m3, 317.01 N/mm2 and 122986.18 N/mm2, respectively.
研究了竹材和短枝裂竹的物理力学特性。每根竹竿的样品可分为幼龄和成熟期两个不同的年龄。本研究的目的是研究密度、基本密度、含水率、吸水率和厚度膨胀等物理性能。除此之外,机械性能也有助于确定其断裂模量(MOR)和弹性模量(MOE)的弯曲测试。用于分析物理和机械性能的方法遵循ISO标准。从本研究中可以看出,幼竹的含水率、吸水率和厚度膨胀率分别为67.66%、2.69%和34.03%,而成熟的短枝裂竹的碱性密度、密度和MOR、MOE的弯曲试验值分别为876.33 kg/m3、1084.49 kg/m3、317.01 N/mm2和122986.18 N/mm2。
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引用次数: 6
Groundwater quality assessment of domestic shallow dug wells in parts of Tanah Merah district, Malaysia 马来西亚Tanah Merah地区部分家庭浅挖井的地下水质量评价
Pub Date : 2021-07-17 DOI: 10.47253/JTRSS.V6I2.562
Kishan Raj Pillai Mathialagan, Hafzan Eva Mansor, Aina Mardhiya, Zakiyah Ainul Kamal, Mohammad Muqtada Ali Khan
Groundwater resources have become an important fresh water supply due to its increasing demandsfor agricultural, drinking and industrial uses. Groundwater is often contaminated by the process ofindustrial development and suburbanization that has gradually advanced over time without anyconcern for environmental consequences. The objective of this study is to analyse the groundwaterquality of shallow dug wells in parts of Tanah Merah district by conducting quality assessment ofgroundwater using WHO and MHO guide lines. Groundwater samples were collected from dugwells uniformly spread out across the study area to investigate the major ion chemistry of thegroundwater as well as physical parameter. The major ion being investigated are sodium,magnesium, calcium, potassium, sulphate, nitrate, chloride and bicarbonates. Various methods havebeen were employed to determine the major ions concentration in the samples such as atomicabsorption spectrophotometer for cations, gravimetric method for sulphates, titration method forchloride and bicarbonates and colorimetric method for nitrate ion. From the analysed data’s, mostwells are safe for drinking purpose although quite a small amount of ion concentration has surpassedthe permissible limit set by WHO and MOH. The graphical presentation of major ion chemistryaids in identifying two types of groundwater. Ionic species such as Na-K-HCO3 and mixed typewaters are likely to occur in the groundwater system. The analysed major ions concentrationsindicates that majority of the shallow dug wells reported adequate or lower values compared topermissible limit which are safe and can be utilized for various domestic purposes includingdrinking. Several recommendations has been suggested to proliferate the groundwater quality suchas strictly monitoring and supervising the dissipation of waste such as pesticides, industrial effluentand domestic sewage into the aquifer.
由于农业、饮用水和工业对地下水的需求不断增加,地下水资源已成为一种重要的淡水供应。地下水经常受到工业发展和郊区化过程的污染,这些过程随着时间的推移而逐渐推进,而没有考虑到环境后果。本研究的目的是利用世界卫生组织和世界卫生组织的指导方针对地下水进行质量评估,分析Tanah Merah地区部分浅挖井的地下水质量。地下水样本从均匀分布在研究区域的钻孔中收集,以研究地下水的主要离子化学和物理参数。研究的主要离子有钠、镁、钙、钾、硫酸盐、硝酸盐、氯化物和碳酸氢盐。测定样品中主要离子浓度的方法有:原子吸收分光光度计测定阳离子,重量法测定硫酸盐,滴定法测定氯化物和碳酸氢盐,比色法测定硝酸盐离子。从分析的数据来看,尽管有相当少量的离子浓度超过了世界卫生组织和卫生部规定的允许限度,但大多数井是安全的。主要离子化学的图解有助于识别两种地下水。地下水系统中可能存在Na-K-HCO3等离子种和混合型水。分析的主要离子浓度表明,大多数浅挖井报告的值与允许限值相比足够或更低,这是安全的,可以用于各种家庭用途,包括饮用。为了提高地下水水质,提出了一些建议,如严格监测和监督农药、工业废水和生活污水等废物向含水层的排放。
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引用次数: 2
Background concentration of indoor air quality in hostel rooms during varying conditions 不同情况下旅舍室内空气质素的本底浓度
Pub Date : 2021-07-17 DOI: 10.47253/JTRSS.V6I2.571
N. R. Awang, Amzar Shahir Ridzuan, Mohamad Haris Zainol
The indoor air pollutants in student hostel room during eight different conditions were evaluated.One minute interval of TVOC, CO2, CO, O3 concentrations, temperature and relative humidity weremeasured inside a vacant hostel room of Universiti Sains Malaysia. Four fan speeds of 0, 1, 3 and5 and the installed window being open and close were selected as the basis to determine thecondition inside the hostel room. Result suggested that the concentrations of indoor air pollutantswere below the maximum permissible values outlined by Industrial Code of Practice on Indoor AirPollutants except for O3, with maximum concentration are 576 ppb (TVOC), 666 ppm (CO2), 4.4ppm (CO) and 90 ppb (O3). The hourly trend of TVOC and CO2 concentrations with peakconcentrations were observed in the morning (8 a.m.) due to outdoor traffic emission which greatlyinfluenced the indoor pollutants variation. Meanwhile, O3 showed some delay in time to reach peakconcentrations that were observed at 4 p.m. and 5 p.m. Result indicate that the conditions set upwere incapable in the regulation of indoor pollutants variation since these pollutants are moredependent with the source of emission and destruction factors.
对8种不同条件下的学生宿舍室内空气污染物进行了评价。在马来西亚圣士大学一个空置的宿舍房间内,每隔一分钟测量TVOC、CO2、CO、O3浓度、温度和相对湿度。风机转速为0、1、3和5,安装的窗户是打开和关闭的,这是确定宿舍房间内状况的依据。结果表明,除O3外,室内空气污染物浓度均低于《室内空气污染物工业操作规程》规定的最大允制值,最大浓度分别为576 ppb (TVOC)、666 ppm (CO2)、4.4ppm (CO)和90 ppb (O3)。TVOC和CO2浓度的逐小时变化趋势主要出现在上午(8点),室外交通排放对室内污染物变化有较大影响。与此同时,臭氧在下午4点和5点达到峰值的时间有所延迟。结果表明,由于室内污染物对排放源和破坏因子的依赖性较强,所设置的条件无法调节室内污染物的变化。
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引用次数: 0
Synthesis of silica/carbon composite from agricultural waste as heterogeneous acid catalysts to produce dioxolane moieties from a biodiesel-derived waste compound 以农业废弃物为原料合成二氧化硅/碳复合材料,作为非均相酸催化剂,从生物柴油衍生的废弃物化合物中生产二恶烷基团
Pub Date : 2021-07-17 DOI: 10.47253/JTRSS.V6I2.565
S. M. Al-Amsyar, Nur Hanisah Zubir, Nur Azila Abdullah, Nur Aqilah Saleh, Anis Amalina Amir Nurddin Fakri, Nurul Aqilah Mohd Razib, Afifa Nadiera Tarmidi, H. K. Adli, N. A. Ibrahim, M. Aurifullah
Silica/carbon composites from the carbonization of rice husk have been employed to act asheterogeneous Brønsted acid catalysts. These composites have been used to catalyze theacetalization of phenylacetaldehyde, vanillin, and 2-acetonaphthone with propylene glycol toproduce hyacinth, vanilla, and orange blossom scent fragrances. As the carbonization temperaturesaffect the physicochemical properties and hence their catalytic activity, several characterizationtechniques and data manipulation have been performed to understand the correlations. Acid densityand hydrophilicity has been proved to play a crucial part to obtain an optimized yield of desiredproducts.
采用稻壳炭化制备的硅/碳复合材料作为非均相Brønsted酸催化剂。这些复合材料已被用于催化苯乙醛、香草醛和2-乙萘酮与丙二醇的缩醛化反应,以生产风信子、香草和橙花香味。由于炭化温度会影响其物理化学性质,从而影响其催化活性,因此采用了几种表征技术和数据处理来了解其相关性。酸密度和亲水性已被证明是获得最佳产率的关键因素。
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引用次数: 0
Nutrient composition of Blaptica dubia (Order: Blattodea) as an alternative protein source 作为一种替代蛋白质来源的黑藻的营养成分
Pub Date : 2021-07-17 DOI: 10.47253/JTRSS.V6I2.568
Pei Yee Lam, Nurul Syazwani Abdul Latif, K. Thevan, P. V. Rao, Wan Zahari Wan Muhamed
Blaptica dubia is a cockroach that used as feed for most reptiles and amphibians because of itnutritive value. Its alternative protein sources can replace the current high priced imported animalfeed such as fishmeal, soybeans and meat. It has potential as an animal feed and minimize highlivestock farming cost of the farmers. A study was conducted to determine the nutritionalcomposition (moisture, ash, crude protein, chitin and fat) of B. dubia in different growth stages.Moisture and ash determine using AOAC protocol, protein using Kjeldahl method, chitin usingchemical treatment and fat analysis using soxhlet extraction method. The proximate analysis ofadults and nymph of B. dubia contained 59.06-62.70% moisture, 2.47-4.17% ash, 47.50-54.32%crude protein, 3.83-5.58 % chitin and 35.49-44.22% fat on dry weight. Thus, the tested feed pelletscould be an alternative protein source as the animal feed especially in pet industry.
蟑螂是一种蟑螂,由于其营养价值,被用作大多数爬行动物和两栖动物的饲料。它的替代蛋白质来源可以取代目前高价的进口动物饲料,如鱼粉、大豆和肉类。它有潜力作为一种动物饲料,并最大限度地减少农民的高牲畜养殖成本。研究了双歧杆菌不同生长阶段的营养成分(水分、灰分、粗蛋白质、几丁质和脂肪)。水分和灰分采用AOAC法测定,蛋白质采用凯氏定氮法测定,几丁质采用化学处理,脂肪采用索氏提取法测定。粗蛋白质含量为47.50 ~ 54.32%,几丁质含量为3.83 ~ 5.58%,脂肪含量为35.49 ~ 44.22%。因此,所测试的饲料颗粒可作为动物饲料的替代蛋白质来源,特别是在宠物工业中。
{"title":"Nutrient composition of Blaptica dubia (Order: Blattodea) as an alternative protein source","authors":"Pei Yee Lam, Nurul Syazwani Abdul Latif, K. Thevan, P. V. Rao, Wan Zahari Wan Muhamed","doi":"10.47253/JTRSS.V6I2.568","DOIUrl":"https://doi.org/10.47253/JTRSS.V6I2.568","url":null,"abstract":"Blaptica dubia is a cockroach that used as feed for most reptiles and amphibians because of itnutritive value. Its alternative protein sources can replace the current high priced imported animalfeed such as fishmeal, soybeans and meat. It has potential as an animal feed and minimize highlivestock farming cost of the farmers. A study was conducted to determine the nutritionalcomposition (moisture, ash, crude protein, chitin and fat) of B. dubia in different growth stages.Moisture and ash determine using AOAC protocol, protein using Kjeldahl method, chitin usingchemical treatment and fat analysis using soxhlet extraction method. The proximate analysis ofadults and nymph of B. dubia contained 59.06-62.70% moisture, 2.47-4.17% ash, 47.50-54.32%crude protein, 3.83-5.58 % chitin and 35.49-44.22% fat on dry weight. Thus, the tested feed pelletscould be an alternative protein source as the animal feed especially in pet industry.","PeriodicalId":17457,"journal":{"name":"Journal of Tropical Resources and Sustainable Science (JTRSS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76872783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Comparative study of hatchability rate and egg quality between different strains of Japanese Quail (Coturnix japonica) 不同品系日本鹌鹑的孵化率和蛋品质比较研究
Pub Date : 2021-07-17 DOI: 10.47253/JTRSS.V6I2.564
M. A. Wahab, K. Mat, M. M. Nor, M. Adam, Muhammad Syazwan Ramli, N. Rusli, C. H. Hasnita, Raja Ili Airina Raja Khalif
The objectives of this study were to determine morphology of Japanese quail strains andhatchability rate and egg quality between commercial strain which is Poultry Progress Institute(IKTA) strain and White Texas strains of Japanese Quail (Coturnix japonica) rear in Malaysia. Atotal of 300 quails were randomly picked and the breastbone length, chest girth, body weight,body length, shank length and drum length were measured for the morphology. Then, 270 eggs ofCommercial and White Texas strains were used to test the hatchability rate (n=150) and eggquality (n=120). The ratio of the parents of the quails between male and female of each type ofstrain were 1:3. The cleanliness, shape, weight, and texture of the eggshell were observed,weighed and measured. The eggs were incubated for 17 days (37.6 °C, 65% humidity). The shapeindex, egg weight, egg volume and eggshell surface were weighed and measured for the exteriortrait of eggs. For interior trait, the albumen index, Haugh units, and internal quality units (IQU)were measured. Significant findings were observed in all of the features (P<0.05), except for thewing length in morphology. For hatchability rate, there was a high significant in the percentage ofhatchability of incubated eggs, hatchability of fertile eggs and smoothness texture of the eggshell.In egg quality there was high significant in Haugh unit but low significant internal quality unit.The significant variability might be due from the genetic information that inherited from theparents. The IKTA and White strains were not the same in morphology, hatchability rate andinterior trait of eggs but same exterior trait of eggs. In conclusion, this research is important ingiving information about Japanese quail strain in Malaysia and more genetic study should be donein the future to determine good strain and increase understanding about quail strain.
本研究的目的是比较家禽进步研究所(IKTA)商品品系和马来西亚白德克萨斯日本鹌鹑品系的形态、孵化率和蛋品质。随机选取鹌鹑300只,测定其胸骨长、胸围、体重、体长、胫长、鼓长等形态学指标。然后,选用商品品系和白德克萨斯品系270只蛋,分别测定孵化率(n=150)和蛋品质(n=120)。各品系的亲本雌雄比例为1:3。观察、称量和测量蛋壳的清洁度、形状、重量和质地。孵育17 d(37.6℃,65%湿度)。对蛋的外形性状进行了称量和测定,测定了蛋的形状指数、蛋重、蛋体积和蛋壳表面。内部性状采用蛋白指数、哈氏单位和内部品质单位(IQU)测定。除翅长外,其他特征差异均有统计学意义(P<0.05)。孵化率方面,孵化蛋的孵化率、受精卵的孵化率和蛋壳的光滑度均有显著性差异。在蛋品质方面,哈氏单位高显著,内品质单位低显著。这种显著的差异可能是由于遗传自父母的遗传信息。IKTA和White菌株在形态、孵化率和卵的内部性状上不相同,但卵的外部性状相同。本研究为进一步了解马来西亚日本鹌鹑品系提供了重要的信息,今后应开展更多的遗传研究,以确定优良品系,增加对鹌鹑品系的认识。
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引用次数: 1
Potential Application of Murraya koenigii Extract as Antibacterial Agent in Liquid Hand Soap Formulation 锦葵提取物在洗手液配方中的潜在应用
Pub Date : 2021-07-17 DOI: 10.47253/JTRSS.V6I2.570
Ai Yin Loh, K. A. Pahirulzaman
Here we present the efficacies of Murraya koenigii leaves extract as natural antibacterial agents bythe ability to inhibit the growth of Escherichia coli and Staphylococcus aureus. The antibacterialactivities of formulated liquid hand soap with different concentrations (10, 30 and 50 mg/mL) ofM. koenigii extracts were determined by paper disc diffusion method. M. koenigii leaves extract at10 mg/mL concentration had the ability to inhibit the growth of both test microorganisms. Whereas,for liquid hand soap formulated with 10, 30 and 50 mg/mL M. koenigii extracts, inhibition zoneswere observed on S. aureus assay plates but not on E. coli. Hence, the results suggested that liquidhand soap containing M. koenigii extract had therapeutic potentials to prevent spread of skindiseases caused by S. aureus.
本研究通过对大肠杆菌和金黄色葡萄球菌生长的抑制,研究了龙涎香叶提取物作为天然抗菌剂的作用。研究了不同浓度(10、30、50 mg/mL)的配方洗手液的抗菌活性。采用纸片扩散法测定科尼氏菌提取物含量。10 mg/mL浓度的柯尼希叶提取物对两种微生物的生长均有抑制作用。而含有10、30和50 mg/mL柯尼氏杆菌提取物的洗手液对金黄色葡萄球菌有抑制作用,对大肠杆菌无抑制作用。因此,含柯尼氏分枝杆菌提取物的洗手液具有预防金黄色葡萄球菌引起的皮肤病传播的治疗潜力。
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引用次数: 2
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Journal of Tropical Resources and Sustainable Science (JTRSS)
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