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Supplementation of Black Soldier Fly (Hermetia illucens) on Activity and Capacity Phagocytic Macrophage of Laying Hens 添加黑兵蝇对蛋鸡吞噬巨噬细胞活性和容量的影响
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2019-12-31 DOI: 10.14334/jitv.v24i4.2025
A. Irawan
Black Soldier Fly are natural antibiotics. It is expected that the use of BSF larvae in poultry rations as an alternative source of conventional protein will contribute to improving the immune status and maintaining animal health, thereby reducing the use of antibiotic growth promoters (AGPs). This study aimed to evaluate the effect of the best type of BSF protein for determining the health status of laying hens based on the activity and capacity of macrophage phagocytosis on the non-protein A bacterium Staphyllococcus aureus. Results of this study indicated that the BSF extract (P3) has the highest phagocytic capacity value. This result proves that the BSF extract can induce macrophage cells to optimally process bacterial cells or foreign phagocyte particles. The highest average activity value, and phagocytic capacity of peritoneal macrophages was resulted from BSF extract (P3), respectively was 91.34 ± 0.38% and 22.84 macrophage-1 bacteria.
黑兵蝇是天然抗生素。预计在家禽口粮中使用BSF幼虫作为常规蛋白质的替代来源将有助于改善免疫状态和维持动物健康,从而减少抗生素生长促进剂(AGPs)的使用。本研究旨在通过巨噬细胞对非蛋白A金黄色葡萄球菌的吞噬活性和吞噬能力来评价最佳型BSF蛋白对蛋鸡健康状况的影响。本研究结果表明,牛蒡子提取物(P3)的吞噬能力值最高。结果表明,牛蒡子提取物可诱导巨噬细胞对细菌细胞或外来吞噬细胞颗粒进行最佳加工。BSF提取物(P3)对腹腔巨噬细胞的平均活性值和吞噬能力最高,分别为91.34±0.38%和22.84个巨噬细胞。
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引用次数: 1
Rhizopus oligosporus Activity in Crude Extract and Powder Form to Reduce Aspergillus flavus and Aflatoxin Contamination in Corn 粗提取物和粉末形式的根霉寡孢菌活性降低玉米黄曲霉和黄曲霉毒素污染
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2019-12-31 DOI: 10.14334/jitv.v24i4.2078
E. Kusumaningtyas, -. Masrianti, F. Fitrya
Rhizopus oligosporus (RO) in isolate culture was known to reduce contamination toxigenic mold Aspergillus flavus (AF) and aflatoxin B1 in chicken feed. Application in culture form was not effective. The aim of this research was to evaluate RO activities in extract and inoculum form to reduce contamination of AF and aflatoxin B1 in corn. RO was harvested from agar plate, blended, added with water (ratio 1:1 (w/v)) and centrifuged. Supernatant was filtered using Whatman 41. Inoculum was made by inoculation RO in soy powder and incubated at 28oC for 5 days. Inoculum was dried at 40oC for 24-28 hours. Assay was conducted by addition extract or inoculum to corn. Extract and corn ratio were 1:1 (v/w), while inoculum doses were 5, 25, 50, 1000 dan 200 g/kg corn. Assay for aflatoxin B1 was done using kit ELISA aflatoxin. The result of this research showed that extract was able to reduce AF contamination up to 1 log 10, while the less concentration of inoculum which able to inhibit AF up to 6 log 10 was 100 g/kg corn. Extract RO 125 and 250 mL/kg corn was able to reduce aflatoxin contamination by 93.69 % and 85.84 %. Inoculum at dose 5 and 100 g/kg corn was able to reduce aflatoxin 57.58% and 85%. Based on the result, it could be concluded that RO in extract or inoculum form was able to reduce contamination of AF and aflatoxin B1 in corn. Rhizopus as inoculum was easier to be applied than in extract form.
分离培养的寡孢根霉(RO)可以减少鸡饲料中的污染毒霉菌黄曲霉(AF)和黄曲霉毒素B1。以培养形式应用效果不佳。本研究的目的是评估提取物和接种物形式的反渗透活性,以减少玉米中AF和黄曲霉毒素B1的污染。从琼脂平板上收获RO,混合,加水(比例为1:1(w/v))并离心。上清液用Whatman 41过滤。通过在大豆粉末中接种RO制成接种物,并在28℃下培养5天。接种物在40℃下干燥24-28小时。通过向玉米中添加提取物或接种物进行测定。提取物和玉米的比例为1:1(v/w),接种量为5、25、50、1000和200 g/kg玉米。用试剂盒ELISA法测定黄曲霉毒素B1。该研究的结果表明,提取物能够将AF污染减少到1 log 10,而能够抑制AF的较低浓度的接种物为100g/kg玉米,接种物的浓度达到6 log 10。反渗透125和250mL/kg玉米提取物对黄曲霉毒素的污染分别减少了93.69%和85.84%。接种5和100g/kg玉米对黄曲霉毒素的抑制率分别为57.58%和85%。根据研究结果,可以得出结论,提取物或接种物形式的RO能够减少玉米中AF和黄曲霉毒素B1的污染。根霉作为接种物比提取物更容易应用。
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引用次数: 1
Assessment of Genetic Relationships between Growth Traits and Milk Yield in Egyptian Buffaloes 埃及水牛生长性状与产奶量的遗传关系评价
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2019-12-31 DOI: 10.14334/jitv.v24i4.2034
Ibrahim Abu El Naser
Data in this study were collected from live body weight records and milk yield for the first three lactations of Egyptian buffaloes maintained at the Mahallet Mousa Experimental Station of Animal Production Research Institute, relying on 987 records of Egyptian buffaloes spread over 16 years. These data were analyzed to estimate genetic parameters using animal model. Overall means in kilograms of BW, WW, W18, WFC, 1stMY, 2ndMY and 3rdMY were 36.56, 96.95, 322.02, 462.09, 1561.53, 1755 and 1837.71, respectively. Direct additive heritability (h2a) for mentioned traits were 0.31, 0.22, 0.24, 0.27, 0.23, 0.23 and 0.17, respectively. Corresponding computation of maternal heritability (h2m) for same traits were 0.39, 0.34, 0.22, 0.40, 0.29, 0.31 and 0.21, respectively. Evaluation of genetic correlations among different all studied traits were positive and ranged from 0.07 to 0.83, while phenotypic correlations were positive and ranged from 0.02 to 0.55. Accuracy of (PBV's) varying from 62 to 76, 62 to 83 and 41 to 77% for sires, cows and dams, successively; pointing out the genetic improvement could be achieved through any pathway of them. Higher direct and maternal heritability for BW and WFC and genetic correlations between first three lactations milk yield and each of BW and WFC higher than genetic correlations between first three lactations milk yield and WW and W18. Therefore, it is appropriate to select buffalo female calves for live body weight at birth than for live body weights at other ages.
本研究中的数据来自动物生产研究所Mahalet Mousa实验站保存的埃及水牛前三次泌乳的活体重记录和产奶量,依赖于16年来987份埃及水牛的记录。使用动物模型对这些数据进行分析以估计遗传参数。BW、WW、W18、WFC、1stMY、2ndMY和3rdMY的总平均值(千克)分别为36.56、96.95、322.02、462.09、1561.53、1755和1837.71。上述性状的直接加性遗传力(h2a)分别为0.31、0.22、0.24、0.27、0.23、0.23和0.17。相同性状的母体遗传力(h2m)的相应计算值分别为0.39、0.34、0.22、0.40、0.29、0.31和0.21。所有研究的不同性状之间的遗传相关性评估为正,范围为0.07至0.83,而表型相关性为正,为0.02至0.55。父系、奶牛和母系的(PBV’s)准确度依次为62至76、62至83和41至77%;指出遗传改良可以通过它们的任何途径实现。BW和WFC的直接遗传力和母体遗传力较高,前三个泌乳期产奶量与BW和WFC之间的遗传相关性高于前三个哺乳期产奶率与WW和W18之间的遗传关联。因此,选择出生时的活体重比选择其他年龄的活体重更合适的水牛母牛犊。
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引用次数: 5
Characterisation of M2e Antigenicity using anti-M2 Monoclonal Antibody and anti-M2e Polyclonal Antibodies 使用抗M2单克隆抗体和抗M2e多克隆抗体表征M2e的抗原性
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2019-09-24 DOI: 10.14334/JITV.V24I3.1987
Sumarningsih Sumarningsih, S. Tarigan, Hemmatzadeh Farhid, J. Ignjatovic
Matrix 2 ectodomain (M2e) protein is a potential antigen for detection of influenza A virus infection in vaccinated poultry (DIVA test). However the M2e antigenicity and immune response it induces in either humans or animals are poorly understood. Seventeen M2e peptides and sixteen recombinant M2e (rM2e) proteins with amino acid (aa) changes introduced at position 10, 11, 12, 13 14, 16, 18 and 20 were compared by western blot (WB) and enzyme-linked immunosorbent assay (ELISA) using mouse anti-M2 monoclonal antibody (mAb) 14C2, and anti-M2e peptide chicken and rabbit polyclonal antibody (pAb). The mAb 14C had the best discriminating power and indicated that all six positions contributed to the M2e antigenicity. Position 11 was the important immunodominant and affected Mab14C binding to a greatest degree. Changes in the adjacent position 14, 16 and 18 also influenced the binding, and it detected regardless of the method (WB or ELISA), or the antigen used (M2e peptide or rM2e). For chicken pAb and rabbit pAb, the immunodominant aa was position 10 and the antibody reaction was not affected by aa change at 11. The binding of rabbit pAb was also affected by changes at 14 and 16, which confirm the contribution of these positions to the M2e antigenicity. Position 10 was the only important position for the binding of chicken pAb to M2e. Overall, the study showed that the M2e antigenic sites are located between residues 10 – 18 and that aa changes at position 10, 11, 12, 14, 16 and 18 may all affect the antibody binding within the M2e protein.
基质2外结构域(M2e)蛋白是一种潜在的抗原,可用于检测疫苗接种家禽的甲型流感病毒感染(DIVA试验)。然而,M2e抗原性及其在人或动物中诱导的免疫反应尚不清楚。采用小鼠抗m2单克隆抗体(mAb) 14C2和鸡兔抗M2e多肽多克隆抗体(pAb),采用western blot (WB)和酶联免疫吸附试验(ELISA)对17个M2e肽和16个重组M2e (rM2e)蛋白在10、11、12、13、14、16、18和20位引入氨基酸(aa)变化的蛋白进行比较。mAb 14C具有最好的鉴别能力,表明所有6个位点都参与了M2e抗原性。11号位点是重要的免疫显性位点,对Mab14C结合影响最大。相邻位置14、16和18的变化也影响了结合,无论采用WB或ELISA方法,或使用抗原(M2e肽或rM2e),都能检测到。鸡pAb和兔pAb的免疫优势位点为第10位,第11位的aa变化不影响抗体反应。兔pAb的结合也受到14和16位点变化的影响,这证实了这些位点对M2e抗原性的贡献。位置10是鸡pAb与M2e结合的唯一重要位置。综上所述,研究表明M2e抗原位点位于残基10 - 18之间,而aa在10、11、12、14、16和18位的变化都可能影响M2e蛋白内抗体的结合。
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引用次数: 0
Model of Resources Development in Partnership System of Broiler Farming Business 肉鸡养殖企业合伙制中的资源开发模式
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2019-09-24 DOI: 10.14334/JITV.V24I3.1927
A. Amam, Z. Fanani, B. Hartono, B. Nugroho
Accessibility of resources in theory can affected the development of broiler farming in a region. This research was conducted with the objectives of: 1) to formulate indicators of resource use on the development of partnership system of broiler farming business, and 2) to find the model of the development of resources use accessibility to partnership system of broiler farming business. The research was conducted in August 2017 up to January 2018 in Malang Regency of East Java Province, Indonesia. 100 respondents as partnership system of broiler farmer was participated in this study who was determined by total sampling. The research variables consist of: a) financial resources, b) technology resources, c) physic resources, d) economic resources, e) environmental resources, f) social resources, g) human resources, and h ) business development. The data was analyze used by SEM with SmartPLS 2.0 analysis tool. The results indicate that: 1) The development of partnership system of broiler farming business is directly influenced by the financial resources of 2.421, the physic resources is 1.821, the economic resources 2.445, and the human resources 2.904, but the development of partnership system of broiler farming business direct are not affected by technology resources, environmental resources, and social resources; 2) The development of partnership system of broiler farming business is indirect with quality of human resources is influenced by the financial resources of 2.629, technology resources of 6.092, physic resources of 2.308, and economic resources of 2.312, but the development of partnership system of broiler business is indirectly with the quality of human resources are not influenced by environmental resources and social resources.
从理论上讲,资源的可及性会影响一个地区肉鸡养殖的发展。本研究的目的是:1)制定肉鸡养殖企业合伙制发展的资源利用指标;2)寻找肉鸡养殖企业合伙人制发展的可及资源利用模型。该研究于2017年8月至2018年1月在印度尼西亚东爪哇省马朗县进行。本研究以肉鸡养殖户为研究对象,采用总抽样法对100名被调查者进行调查。研究变量包括:a)财政资源,b)技术资源,c)物理资源,d)经济资源,e)环境资源,f)社会资源,g)人力资源,h)商业发展。通过SEM和SmartPLS 2.0分析工具对数据进行分析。结果表明:1)肉鸡养殖企业合伙制的发展直接受财力2.421、物力1.821、经济资源2.445和人力资源2.904的影响,以及社会资源;2) 肉鸡养殖企业合伙制的发展是间接的,人力资源质量受到金融资源2.629、技术资源6.092、物质资源2.308和经济资源2.312的影响,但是肉鸡企业合伙制的发展与人力资源的质量是间接的,不受环境资源和社会资源的影响。
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引用次数: 4
Plasma Β-Endorphin and Cortisol Profiles around Periparturient Period at Stressful Conditions in Egyptian Buffalo 埃及水牛围产期应激条件下血浆β-内啡肽和皮质醇水平
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2019-09-23 DOI: 10.14334/JITV.V24I3.2003
H. Abed, O. El-Malky, R. S. Mourad, I. S. Al-Gezery
The study determined the level of plasma β-endorphin and cortisol concentrations in peripheral blood circulation of buffalo cows suffering from reproductive disorders (dystocia and retained placenta) and weakness body condition score during periparturient period. Twenty multi-parous Egyptian buffalo cows at late pregnancy period were used for two months before parturition. β-endorphin concentrations were higher in buffalo suffering from reproductive disorders groups. Whereas, β-endorphin concentrations were 134.9±4.8 for retained placenta, 121.3±4.9 for dystocia, 114.2±8.4 for weakness and 113.5±6.5 pg/ml for control. In the closer period around parturition both of plasma β-endorphin and cortisol followed the same trend toward a gradually increased values during -2,-1days and zero time in all groups. A concomitant trend was noticed in β-endorphin and cortisol concentrations in postpartum period with reduce values were observed in all groups after parturition continued for month or more. Buffalo suffering from reproductive disorders were showed a high relative values in β-endorphin and cortisol concentrations. A significant differences (P<0.01) were observed between the experimental groups. Generally, buffaloes suffering reproductive disorders had a clear impact on blood plasma β-endorphin concentration around parturition process.The aim of this study was to determine the relationship between various reproductive disorders as a stress factors with plasma β–endorphin and cortisol in buffalo cows around parturition and changes in these parameters could be used as an objective measure of the stress associated labour. Stress has been hypothesized to be a cause of impaired reproductive efficiency. Stress may cause an overproduction of beta-endorphins and free radicals
该研究测定了患有生殖障碍(难产和胎盘滞留)的水牛外周血循环中血浆β-内啡肽和皮质醇的水平,以及围产期虚弱的身体状况评分。20头妊娠晚期的多胎埃及水牛在分娩前使用了两个月。患有生殖障碍的水牛体内β-内啡肽浓度较高。而保留胎盘的β-内啡肽浓度为134.9±4.8,难产为121.3±4.9,虚弱为114.2±8.4,对照为113.5±6.5 pg/ml。在分娩前后的较近时期,所有组的血浆β-内啡肽和皮质醇都遵循相同的趋势,在-2、-1天和0时间内逐渐增加。观察到产后β-内啡肽和皮质醇浓度呈下降趋势,在分娩持续一个月或更长时间后,所有组的浓度都有所下降。患有生殖障碍的水牛的β-内啡肽和皮质醇浓度相对较高。实验组间比较有显著性差异(P<0.01)。一般来说,患有生殖障碍的水牛在分娩过程中会对血浆β-内啡肽浓度产生明显影响。本研究的目的是确定作为应激因素的各种生殖障碍与水牛分娩前后血浆β-内啡肽和皮质醇之间的关系,这些参数的变化可作为压力相关分娩的客观衡量标准。据推测,压力是生殖效率受损的原因之一。压力可能导致β-内啡肽和自由基的过量产生
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引用次数: 0
Antimicrobial, Antioxidant and Anti-inflammation Activities of Fraction and Single Peptides Derived from Mare Milk Protein 马奶蛋白的抗微生物、抗氧化和抗炎症活性
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2019-09-23 DOI: 10.14334/JITV.V24I3.1976
E. Kusumaningtyas, D. Subekti, D. F. Fitaningtyas
Mare milk protein contains bioactive peptide which beneficial for human and animal health. Peptides in the fraction and single may show different activities.  The objectives of the study were to evaluate antimicrobial and anti-inflammation activities of the fraction and single peptide derived from mare milk protein. Antimicrobial assay was conducted by testing antibacterial and antifungal activities of fraction <3 kDa, peptide HPYFYAPELLYYANK, LVNELTEFAK and LANSLTEFAK against Escherichia coli and Candida albicans. Anti-inflammation effect was detected by interleukin 1-β (IL- 1β) and Tumor Necrosis Factor -α (TNF-α) production in mice after administration of Escherichia coli’s lipopolysaccharide (LPS) and combined with fraction or single peptide. The result showed that antibacterial and antifungal of fraction <3 kDa was higher than all of single peptide. This may because of synergistic interaction among peptide in the fraction which increase the activities. Fraction <3 kDa was also able to decrease production of IL-1β and TNF-α better than single peptide indicated its ability to decrease inflammation. Based on the results, antimicrobial and anti-inflammation activities fraction <3 kDa was better than single peptide. 
马奶蛋白含有对人体和动物健康有益的生物活性肽。部分和单个肽可能表现出不同的活性。本研究的目的是评估从马奶蛋白中提取的部分和单个肽的抗菌和抗炎活性。通过检测<3kDa级分、肽HPYFYAPELLYYANK、LVNELTEFAK和LANSLTEFAK对大肠杆菌和白色念珠菌的抗菌和抗真菌活性来进行抗菌试验。通过小鼠在给予大肠杆菌脂多糖(LPS)后产生白细胞介素1-β(IL-1β)和肿瘤坏死因子-α(TNF-α),并与部分或单个肽结合,检测其抗炎作用。结果表明,<3kDa组分的抗菌活性和抗真菌活性均高于所有单个肽。这可能是因为组分中肽之间的协同作用增加了活性。组分<3kDa也能够比单个肽更好地减少IL-1β和TNF-α的产生,这表明其具有减少炎症的能力。根据结果,<3kDa的抗菌和抗炎活性组分优于单个肽。
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引用次数: 0
Retained placenta in Relation with Blood Components in Egyptian crossbred cattle 埃及杂交牛胎盘残留与血液成分的关系
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2019-09-23 DOI: 10.14334/JITV.V24I3.2002
R. S. Mourad
          The present study was carried out in the veterinary units on 14 normal cows and 32 cows with Retained Placenta. Cows were chosen after about 6 to 12 hours from parturition in Shebin Elkom, Menoufia, Egypt.        Results show that there was very highly significant increase of concentrations of all blood biochemical components, macro elements and micro elements in normal cows than those in retained fetal membranes cows except in globulin, Sodium and Manganese.  On the other hand, plasma concentrations of biochemical components were highly significant between summer and winter in cholesterol, total protein and albumin but it wasn’t significant in glucose, globulin and A/G ratio. Moreover, there was very highly significant in plasma concentration between summer and winter in all macro elements except potassium and Ca/P ratio. Also, there was very highly significant in plasma concentration between summer and winter in all micro elements except Manganese. Meanwhile, plasma concentrations of biochemical components were not significant between parities except in A/G ratio. Furthermore, there was no significant in plasma concentration between summer and winter in all macro elements. But, there was very highly significant (P≤0.01) in plasma concentration of Cu and Cd between summer and winter, and it was significant (P≤0.05) in Fe and Se but, there was no significant in Co, Zn, Mn, and Mo.      The aim of this study was to determine blood plasma constituents and inorganic macro and micro elements in the case of retained placenta in crossbred cattle under Egyptian conditions.
本研究是在兽医单位对14头正常奶牛和32头保留胎盘的奶牛进行的。在埃及梅努菲亚的Shebin Elkom,奶牛在分娩后约6至12小时后被选中。结果表明,除球蛋白、钠和锰外,正常奶牛的所有血液生化成分、常量元素和微量元素的浓度均比保留胎膜奶牛显著增加。另一方面,在夏季和冬季之间,血浆中胆固醇、总蛋白和白蛋白的生化成分浓度非常显著,但在葡萄糖、球蛋白和A/G比率方面不显著。此外,除钾和钙磷比外,所有宏观元素的血浆浓度在夏季和冬季之间都非常显著。此外,除锰外,所有微量元素的血浆浓度在夏季和冬季之间都非常显著。除A/G比值外,各组间血浆生化成分浓度均不显著。此外,在夏季和冬季之间,所有宏观元素的血浆浓度都没有显著变化。但冬夏季血浆Cu、Cd含量有极显著性差异(P≤0.01),Fe、Se含量有显著性(P≤0.05),Co、Zn、Mn含量无显著性差异,本研究的目的是在埃及条件下测定杂交牛胎盘残留情况下的血浆成分和无机宏观和微观元素。
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引用次数: 0
Effect of Adding Insulin Transferrin Selenium (ITS) in the Medium on Maturation and Fertilization Rates of Bali Cattle Oocytes 培养基中添加胰岛素转铁蛋白硒(ITS)对巴厘牛卵母细胞成熟和受精率的影响
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2019-09-02 DOI: 10.14334/JITV.V24I3.2020
H. Iskandar, H. Sonjaya, M. Yusuf
The aim of this study was to determine the effect of adding Insulin Transferrin Selenium (ITS) in the medium on maturation and fertilization rates of Bali cattle oocytes. The ovarium of Bali cows were sliced to produce oocytes, then the collected oocytes were subsequently selected based on their quality. Those oocytes were maturated for 24 hours and then fertilized for 18 hours in the incubators of 5% CO2 with temperature of 38.5ºC. Oocytes were stained using 2% of aceto orcein, and observed under a microscope. This study was divided into four treatments at different addition of ITS in the medium and replicated four times, and analized using a Factorial Complete Randomized Design (CRD)at each treatment. The treatments consisted of P0 as control, P1 (5 ng/ml), P2 (10 ng/ml), and P3 (15 ng/ml). Parameters observed in this study were the stages of oocytes maturation rate that consisted of germinal vesicle (GV), germinal vesicle break down (GVBD), metaphase I (M-I), and metaphase II (M-II), and fertilization rate that consisted of absence of pronucleus (P0), 1 pronucleus (PN1), 2 pronucleus (PN2), and more than two pronucleus (>2PN). The results of this study showed that addition of ITS at 5-15 ng/ml did not effect maturation and fertilization rates of Bali cows oocytes.The conculision of the study is addition of ITS at 5 ng / ml produces the best level of maturation and for the best level of fertilization with addition ITS at 15 ng / ml.
本研究旨在研究在培养基中添加胰岛素转铁蛋白硒(ITS)对巴厘牛卵母细胞成熟率和受精率的影响。对巴厘牛卵巢进行切片生产卵母细胞,并根据卵母细胞的质量进行筛选。卵母细胞成熟24小时后,在5% CO2、38.5℃的培养箱中受精18小时。卵母细胞用2%乙酰胆碱染色,在显微镜下观察。本研究分为4个处理,在培养基中添加不同的ITS,重复4次,在每个处理使用析因完全随机设计(CRD)进行分析。对照组分别为P0、P1 (5 ng/ml)、P2 (10 ng/ml)、P3 (15 ng/ml)。本研究观察的参数为卵母细胞成熟率的分期,包括生发囊泡(GV)、生发囊泡破裂(GVBD)、中期I (M-I)和中期II (M-II),受精率包括无原核(P0)、1个原核(PN1)、2个原核(PN2)和2个以上原核(>2PN)。结果表明,添加5 ~ 15 ng/ml ITS对巴厘牛卵母细胞的成熟率和受精率没有影响。本研究的结论是,添加5 ng / ml的ITS可产生最佳的成熟水平,添加15 ng / ml的ITS可产生最佳的受精水平。
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引用次数: 0
Enhance in-vitro rumen fermentation of Panicum maximum with biological supplements 生物制剂对大穗杨瘤胃发酵的促进作用
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2019-07-16 DOI: 10.14334/JITV.V24I2.1963
S. Chathurika, S. Sujani, A. Manawadu, T. Seresinhe
Recently the utilization of biological feed additives over chemical feed additives in animal feeds have increased. The objective of the present study was to evaluate the effect of supplementing wild guinea grass (panicum maximum) with two plant species, artocarpus heterophyllus (jack leaves; ah) and tridax procumbens (Tp) containing plant secondary metabolites tannin and saponin, respectively and the enzyme product dyadic cellulase (Ce) and yeast (Ye). For each suplement two levels of treatments were tested. In plant-based suplements 20 (Aht1, Tpt1) and 30% (Aht2 and Tpt2) substituted the base substrate. The enzyme was applied as 10 µl (Cet1) and 20 µl (Cet2) and yeast as 4 mg (Yet1) and 6 mg (Yet2). the experimental design was a randomized complete block design (rcbd) and the period of in vitro rumen fermentation incubation was 72 hrs. All treatments significantly (P < 0.05) enhanced the in vitro gas production (Ivgp) compared with the control. Treatments of ah and ce significantly (P < 0.05) improved the in vitro rumen dry matter degradability (ivrdmd). All treatments significantly (P<0.05) suppressed the ruminal protozoa population as compared to the control. Ammonia nitrogen (Nh3-N) production was not significantly (P>0.05) influenced with supplements. in conclusion, treatments enhanced the rumen fermentation in means of enhanced ivgp, ivrdmd and reduced protozoa numbers.
近年来,在动物饲料中,生物饲料添加剂的利用率比化学饲料添加剂有所提高。本研究的目的是评估用两种植物——分别含有植物次生代谢产物单宁和皂苷的异叶artocarpus heterophyllus(jack leaves;ah)和平卧三叉戟(Tp),以及酶产物二元纤维素酶(Ce)和酵母(Ye)补充野生珍珠草(panicum maximum)的效果。对于每一个补充物,测试两个水平的处理。在植物基质中,20(Aht1、Tpt1)和30%(Aht2和Tpt2)取代了基础基质。酶的用量为10µl(Cet1)和20µl(Cet2),酵母的用量为4 mg(Yet1)和6 mg(Yet2)。试验设计为随机完全区组设计(rcbd),体外瘤胃发酵培养时间为72小时。与对照组相比,所有处理均显著提高了体外产气量(Ivgp)(P<0.05)。ah和ce处理显著提高了体外瘤胃干物质降解率(ivrdmd)(P<0.05)。补品对各处理均有显著影响(P<0.05)。总之,处理通过增强ivgp、ivrdmd和减少原生动物数量来增强瘤胃发酵。
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引用次数: 4
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Jurnal Ilmu Ternak dan Veteriner
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