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Genetic Diversity of Mitochondrial DNA Cytochrome b in Indonesian Native and Local Cattle Populations 印尼本地和当地牛群体线粒体DNA细胞色素b的遗传多样性
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2020-06-10 DOI: 10.14334/jitv.v25i2.2496
P. W. Prihandini, A. Primasari, M. Luthfi, J. Efendy, D. Pamungkas
Information on the genetic diversity of native and local cattle in Indonesia is vital for the development of breeding and conservation strategies. This study was aimed to assess the genetic diversity and phylogenetic relationship of the Indonesian native (Bali) and local [(Donggala, Madura, Sragen, Galekan, Rambon, dan Peranakan Ongole Grade x Bali (POBA)] cattle populations. Genomic DNA was extracted from blood samples (n= 75). Partial sequences of mtDNA cyt b , 464 bp, were amplified using the polymerase chain reaction technique (forward primer: L14735 and reverse primer: H15149). Thirty-four reference sequences of Bos taurus , Bos indicus , and Bos javanicus were included in the phylogenetic analyses. A total of 55 polymorphic sites and 13 haplotypes were observed in the whole breeds. No variable sites of mtDNA cyt b were observed in Galekan (kept in BCRS) and Rambon cattle. Overall haplotype diversity and nucleotide diversity were 0.515 ± 0.070 and 0.0184 ± 0.0045, respectively. The highest (0.092) and the lowest (0.000) genetic distances were between Bali and Donggala cattle populations and among Galekan (kept in BCRS), Rambon, and POBA cattle populations, respectively. Both mtDNA network and phylogenetic analyses revealed two major maternal lineages (A and B) of the studied population. Most of the sampled individuals (69.33%, present in haplotype H8-H19) were linked to lineage B, which belonged to the same cluster with Bos javanicus . Overall, most of the Indonesian native and local cattle populations had a considerable genetic diversity and shared a common maternal origin with Bos javanicus .
关于印度尼西亚本地和当地牛的遗传多样性的信息对于制定育种和保护战略至关重要。本研究旨在评估印尼本地(巴厘岛)和当地[(Donggala、Madura、Sragen、Galekan、Rambon、dan Peranakan Ongole Grade x Bali(POBA)]牛种群的遗传多样性和系统发育关系。从血液样本中提取基因组DNA(n=75)。利用聚合酶链式反应技术(正向引物:L14735,反向引物:H15149)扩增了464bp的mtDNA cyt b的部分序列。在系统发育分析中包括了34个牛牛、印度牛牛和爪哇牛牛的参考序列。在整个品种中共观察到55个多态位点和13个单倍型。在Galekan(保存在BCRS中)和Rambon牛中没有观察到mtDNA cyt b的可变位点。整体单倍型多样性和核苷酸多样性分别为0.515±0.070和0.0184±0.0045。遗传距离最高(0.092)和最低(0.000)的分别是Bali和Donggala牛群之间以及Galekan(饲养在BCRS中)、Rambon和POBA牛群之间。mtDNA网络和系统发育分析都揭示了研究种群的两个主要母系谱系(A和B)。大多数采样个体(69.33%,存在于单倍型H8-H19中)与谱系B有关,该谱系与爪哇Bos属于同一集群。总的来说,大多数印尼本地和当地牛种群具有相当大的遗传多样性,与爪哇博斯有着共同的母系血统。
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引用次数: 4
Effects of Silybum marianum Aqueous Extract and L-carnitine on Stereological Changes in Diazinon-Treated Rat Liver 水飞蓟水提物和左旋肉碱对二嗪农处理大鼠肝脏体视学变化的影响
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2020-06-10 DOI: 10.14334/jitv.v25i2.2467
Forough Masoumi, M. Shariati, M. Mokhtari
As an organophosphorus, Diazinon (DZN) impairs liver tissue function by inhibiting acetylcholinesterase and causing oxidative stress. In this study, the effects of Silybum marianum aqueous extract (SMAE) and L-carnitine (LC) on the stereological and histopathological changes of the liver in DZN-treated male rats were investigated. The rats in this study were placed into 9 groups of 8 each containing control, placebo, and a combination of DZN, SMAE, and LC. The animals received SMAE and chemicals orally for 30 days. At last, the liver tissue of all animals was removed. Then, tissue sections from the liver were provided to study the stereological markers including liver volume and weight, hepatocytes’ volume, central venous volume, sinusoidal volume, connective tissue volume, inflammation rate, and a number of the hepatocytes’ nuclei. Also, the sample tissues were evaluated histopathologically. Treatment with DZN significantly reduced the liver volume and weight, hepatocyte volume, central venous volume, sinusoidal volume, and hepatocyte nucleus number compared to placebo and control but it significantly increased the inflammation and volume of liver’s connective tissue. However, co-administration of SMAE and LC with DZN improved liver volume and weight, hepatocyte volume, central venous volume, sinusoidal volume, connective tissue volume, and hepatocyte nucleus number alone compared to the DZN treatment. Liver inflammation was also significantly decreased compared to the DZN treatment but comparing to the placebo and control groups, it increased significantly. Simultaneous administration of SMAE and LC has protective effects on liver tissue and can reduce DZN-induced liver injury in rats.
作为一种有机磷,二嗪农(DZN)通过抑制乙酰胆碱酯酶和引起氧化应激而损害肝组织功能。本实验研究水飞蓟水提物(SMAE)和左旋肉碱(LC)对dzn处理的雄性大鼠肝脏的体视学和组织病理学变化的影响。本研究将大鼠分为9组,每组8只,分别含有对照组、安慰剂和DZN、SMAE和LC的组合。动物口服SMAE和化学药物30天。最后,取出所有动物的肝脏组织。然后,提供肝脏组织切片,研究肝脏体积和重量、肝细胞体积、中心静脉体积、窦体积、结缔组织体积、炎症率和一些肝细胞核的体视学指标。同时,对样本组织进行组织病理学评估。与安慰剂和对照组相比,DZN治疗显著降低了肝脏体积和重量、肝细胞体积、中心静脉体积、窦体积和肝细胞核数,但显著增加了肝脏结缔组织的炎症和体积。然而,与DZN治疗相比,SMAE和LC联合DZN可改善肝脏体积和重量、肝细胞体积、中心静脉体积、窦体积、结缔组织体积和肝细胞核数。与DZN治疗相比,肝脏炎症也明显减少,但与安慰剂和对照组相比,肝脏炎症明显增加。SMAE和LC同时给药对肝组织有保护作用,可减轻dzn诱导的大鼠肝损伤。
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引用次数: 1
Direct and Maternal Genetic Trends for Some Productive and Reproductive Traits in Egyptian Buffaloes 埃及水牛某些生产和繁殖性状的直接和母体遗传趋势
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2020-03-17 DOI: 10.14334/jitv.v25i1.2069
Ibrahim Abu El Naser
This study was done to determine the direct and maternal genetic and phenotypic trends for productive traits such as first lactation milk yield (FLMY, kg), first lactation period (FLP, d) and first lactation daily milk (FLDM, kg), and reproductive traits such as age at first calving (AFC, mo), First days open (FDO, d) and first calving interval (FCI, d). Data were collected over consecutive 25 years (1991 to 2015) of 1104 first lactation of 135 sires and 482 dams maintained at Mahallet Mousa farms of Animal Production Research Institute. Data were analyzed by Animal model to determine genetic parameters for studied traits. Means of FLMY, FLP, FLDM, AFC, FDO and FCI were 1546.5kg, 189d, 7.9kg, 37.9mo, 120.8d and 428d, respectively. The direct heritability (h2a) for same traits were 0.25, 0.18, 0.24, 0.45, 0.18 and 0.19, respectively. Corresponding maternal heritability (h2m) for mentioned traits was 0.12, 0.19, 0.22, 0.25, 0.12 and 0.12, respectively. Genetic correlations (rg) among studied traits were varied between -0.19 to 0.38. Accuracy of predicted breeding value varied between 69 to 94, 0.37 to 94 and 42 to 91% for FLMY, FLP, FLDM, AFC, FDO and FCI of sires, cows and dams, respectively that revealed the genetic improvement could be actualized through each of cows or sires or dams. Additive and maternal genetic, permanent environmental and phenotypic trends were not significant for all studied traits. It indicated that it is important to set up a plan to improve genetic and environmental conditions thus, increasing productivity and realization of high profitability.
本研究旨在确定生产性状的直接和母体遗传和表型趋势,如首次泌乳产奶量(FLMY,kg)、首次泌乳期(FLP,d)和首次泌乳日乳量(FLDM,kg),以及生殖性状,如首次产仔年龄(AFC,mo)、首次开放天数(FDO,d)以及首次产仔间隔(FCI,d)。数据是在动物生产研究所Mahalet Mousa农场连续25年(1991年至2015年)收集的,共有135头父系和482头母系的1104头首次泌乳。通过动物模型对数据进行分析,以确定所研究性状的遗传参数。FLMY、FLP、FLDM、AFC、FDO和FCI的平均值分别为1546.5kg、189d、7.9kg、37.9mo、120.8d和428d。相同性状的直接遗传力(h2a)分别为0.25、0.18、0.24、0.45、0.18和0.19。上述性状的相应母体遗传力(h2m)分别为0.12、0.19、0.22、0.25、0.12和0.12。所研究性状之间的遗传相关性(rg)在-0.19至0.38之间变化。父系、奶牛和母系的FLMY、FLP、FLDM、AFC、FDO和FCI的预测育种值的准确率分别在69%至94%、0.37至94%和42%至91%之间,表明遗传改良可以通过每头牛或父系或母系实现。添加剂和母体遗传、永久环境和表型趋势对所有研究的性状都不显著。它表明,制定一项计划来改善遗传和环境条件,从而提高生产力和实现高利润是很重要的。
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引用次数: 6
Effect of Mix Culture Bacteria and Fungi in Fermented Peanut Hulls-Based Feed Supplement on Physical Quality and In Vitro Rumen Fermentation Parameters 发酵花生壳为基础的饲料中添加菌真菌混合培养物对饲料物理品质和体外瘤胃发酵参数的影响
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2020-03-17 DOI: 10.14334/jitv.v25i1.2079
Dela Ria Nesti, Ahmad Baidlowi, A. Fauzi, Ida Tjahajati
The purpose of this research was to determine the effect of the combination of mix culture bacteria (EM4®:E) and fungi ( Trichoderma viridae :TV) on physical quality and in vitro rumen fermentation parameters of peanut hull-based feed supplements. Basal feed was divided into four treatments, which were: P0 (BF); P1 (E:25%+TV:75%); P2 (E:50%+TV:50%),; and P3 (E:75%+TV:25%); and each treatment had three replications. Feeds were fermented facultative anaerobically for nine days. The observed parameters were physical qualities (color, odor, fungi appearance and pH), and in vitro rumen fermentation parameters (rumen pH, microbial protein content, and total volatile fatty acid content). Data were analyzed using one way ANOVA design, and the significance of differences were tested using Kruskall-Wallis test for the physical qualities data and Duncan’s New Multiple Range Test (DMRT) test for in vitro rumen fermentation parameters. Results showed that the combination of E and TV at different level did not affect odor and the fungi appearance parameters (P≥0.05), however, it significantly affected P≤0.05) color change from blackish (1.64) in P0 to brownish in P1, P2 and P3 of 2.44; 2.69; and 2.80, respectively. The pH also decreased significantly (P≤0.05) by 10.67%.  Treatment also did not affect the rumen pH, microbial protein content, and total volatile fatty acid content (P≥0.05). It is concluded that the combination of the EM4® 25%: Trichoderma viridae 75% on peanut-hull based feed supplement fermentation gives the best result on color and pH fermented feed product without affecting the rumen fermentation process.
本研究的目的是确定混合培养细菌(EM4®:E)和真菌(木霉病毒科:TV)组合对花生壳饲料补充剂的物理质量和体外瘤胃发酵参数的影响。基础饲料分为4个处理,分别为:P0(BF);P1(E:25%+电视:75%);P2(E:50%+电视:50%),;P3(E:75%+TV:25%);每个处理有三次重复。饲料经兼性厌氧发酵9天。观察到的参数是物理性质(颜色、气味、真菌外观和pH)和体外瘤胃发酵参数(瘤胃pH、微生物蛋白质含量和总挥发性脂肪酸含量)。使用单向ANOVA设计分析数据,并使用物理质量数据的Kruskall-Wallis检验和体外瘤胃发酵参数的Duncan’s New Multiple Range test(DMRT)检验来检验差异的显著性。结果表明,不同水平的E和TV组合不影响气味和真菌外观参数(P≥0.05),但显著影响P≤0.05)颜色从P0的黑色(1.64)到P1、P2和P3的褐色(2.44)的变化;2.69;和2.80。pH值也显著降低(P≤0.05)10.67%,和总挥发性脂肪酸含量(P≥0.05)。结果表明,EM4®25%:木霉75%在不影响瘤胃发酵过程的情况下,以花生壳为基础的补料发酵对颜色和pH发酵饲料产品的效果最好。
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引用次数: 2
Effect of N-acetylcystein on ERK Gene Expression in Ovarian Tissue of Acrylamide-Treated Adult Rats N-乙酰半胱氨酸对丙烯酰胺处理成年大鼠卵巢组织ERK基因表达的影响
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2020-03-17 DOI: 10.14334/jitv.v25i1.2161
Marziyeh Naimi, M. Shariati, S. Naeimi, M. Edalatmanesh
Acrylamide (AA) is a toxic and carcinogenic compound produced in cooking process. The purpose of this study is to evaluate the effect of N-acetylcysteine (NAC) on extracellular signal-regulated kinase (ERK) gene expression level and ovarian histopathological changes in AA-treated rats. Thirty-six female adult Wistar rats were randomly divided into 6 groups including control, positive control (+VE Con), negative control (-VE Con), experimental 1 (Exp1), experimental 2 (Exp2) and experimental 3 (Exp3). Twenty eight days after the treatment, ERK gene expression level was measured by real-time PCR method and ovarian histopathological changes were evaluated. The ERK gene expression level was significantly decreased in the +VE Con, Exp1 and Exp2 groups as compared to the control group (p˂0.05), but not in the -VE Con and Exp3 groups (p˃0.05). Histologically, the +VE Con group showed a significant decrease in the number of primary, secondary and Graafian follicles as well as corpus luteum as compared to the control group (p˂0.05), but not in the negative, Exp2 and Exp3 groups (p˃0.05). In the Exp1 group, the number of primary and secondary follicles as well as corpus luteum significantly decreased (p˂0.05), however, the numbers of Graafian follicle and the corpus luteum were significantly increased as compared to the +VE Con group (p˂0.05). The AA was supposed to increase the apoptosis and folliculogenesis degradation in the rat ovarian tissue by decreasing ERK gene expression. Administration of NAC ameliorated the deleterious effects of AA in a dose-dependent manner and improve folliculogenesis by reducing apoptosis level. Thus, the NAC supplement could be helpful in ameliorating animal fertility.
丙烯酰胺(AA)是烹饪过程中产生的有毒致癌物。本研究旨在探讨n -乙酰半胱氨酸(NAC)对aa处理大鼠细胞外信号调节激酶(ERK)基因表达水平及卵巢组织病理学变化的影响。雌性成年Wistar大鼠36只,随机分为对照组、阳性对照组(+VE Con)、阴性对照组(-VE Con)、实验1 (Exp1)、实验2 (Exp2)、实验3 (Exp3) 6组。治疗28 d后,采用实时荧光定量PCR法检测ERK基因表达水平,并观察卵巢组织病理学变化。与对照组相比,+VE Con、Exp1和Exp2组的ERK基因表达量显著降低(p < 0.05),而-VE Con和Exp3组的ERK基因表达量无显著差异(p < 0.05)。组织学上,与对照组相比,+VE Con组原发性、继发性和Graafian卵泡以及黄体的数量显著减少(p小于0.05),但阴性、Exp2和Exp3组无显著减少(p < 0.05)。与+VE Con组相比,Exp1组原发性、继发性卵泡和黄体数量显著减少(p小于0.05),而Graafian卵泡和黄体数量显著增加(p小于0.05)。AA可能通过降低ERK基因表达增加大鼠卵巢组织细胞凋亡和卵泡发生降解。NAC以剂量依赖的方式改善AA的有害作用,并通过降低细胞凋亡水平改善卵泡发生。因此,补充NAC可能有助于提高动物的生育能力。
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引用次数: 1
Effects of Two Different Energy Sources in Total Mixed Diets on the Performances and Blood Metabolites of Lactating Boerka Goats 全混合饲粮中两种不同能量源对哺乳期波尔卡山羊生产性能和血液代谢产物的影响
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2020-03-17 DOI: 10.14334/jitv.v25i1.2196
S. P. Ginting, A. Tarigan, Kiston Simanuhuruk, Antonius, Solehudin
Lactating goats are prone to negative energy status due to increased body fat reserve mobilization to support the high energy requirement of milk production. The study was aimed to investigate the responses of the lactating goat on diets provided in total-mixed ration differing in the energy sources. The experiment was conducted using a total of 35 does having 2-3 parities and an average bodyweight of 30.3±4.48 kg and BCS of 2.5 ± 0.05 on a scale basis of 1 to 5. Animals were allocated to one of five dietary treatments (seven animals/treatment) formulated to be iso-nitrogen dan iso-calory in a total mixed ration. Cassava meal was used as the source of glucogenic energy and bergafat as the main source of lipogenic energy. There were no DM intake differences (P>0.05) between the glucogenic diet (1.49% and 2.28% fat), but significant increases (P 0.05) and ranged from 37 to 43 mg/dl and 39 to 51 mg/dl, respectively. Numerically, however, the blood glucose and urea level linearly increased as the diet becoming more lipogenic due to the increased feed intake. It is concluded that lactating goats offered diets with lipogenic energy sources (7.5% fat content) presented in pelleted total mixed-ration during the entire lactation period had a higher dry matter and nutrient intakes, body weight gain and body condition score compared to those fed diets with glucogenic energy source.
泌乳山羊容易出现负能量状态,因为身体脂肪储备动员增加,以支持牛奶生产的高能量需求。本研究旨在调查泌乳山羊对不同能量来源的全混合日粮的反应。该实验共使用35只母犬进行,共有2-3只母犬,平均体重为30.3±4.48kg,BCS为2.5±0.05,以1-5为标准。动物被分配到五种饮食处理中的一种(七只动物/处理),其配方为总混合日粮中的等氮和等热量。木薯粉作为生糖能量的来源,佛手柑作为主要的生脂能量来源。生糖饮食(1.49%和2.28%脂肪)之间的DM摄入量没有差异(P>0.05),但显著增加(P<0.05),分别为37至43 mg/dl和39至51 mg/dl。然而,从数字上看,血糖和尿素水平线性增加,因为饲料摄入量增加,饮食变得更容易产生脂肪。结果表明,在整个哺乳期,以颗粒总混合日粮形式提供的含脂能量源(7.5%脂肪含量)的泌乳山羊与含糖能量源的泌乳山羊相比,干物质和营养素的摄入量、体重增加和身体状况得分更高。
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引用次数: 3
The Effect of Morinda citrifolia and Arthrospira plattensis Powder on the Performance and Quality of Broiler Duck Carcasses 桑椹叶和节螺旋藻粉对肉鸭胴体生产性能和品质的影响
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2020-03-17 DOI: 10.14334/jitv.v25i1.2053
D. Kurniawan, Citra Dewi Yulia Chistie
This study was aimed to investigate performance and quality of broiler duck carcasses fed with Morinda citrifolia and Arthrospira plattensis. A total of 168 two-week-old broiler duck with an initial average body weight of 463 ± 29.38 g and a diversity of 6.35 % were randomly allotted to 7 experimental groups with 4 replications each with 6 bird per replication. Treatments were T0 (basal diet as a control), T1 (basal diet + 0.2% of Morinda citrifolia powder (MP)), T2 (basal diet + 0.5% of Arthrospira plattensis powde(AP)) , T3 (basal diet + 0.2% of MP+ 0.5% of AP), T4 (basal diet + 0.4% of MP + 0.5% of AP), T5 (basal diet + 0.2% of MP + 0.1% of AP), T6 (basal diet 0.4% of MP + 0.1% of AP). Variables measured were feed intake, body weight gain, feed conversion ratio, carcass percentage, abdominal fat, and visceral organ. Data were analyzed for variance based on a Completely Randomize Design and continued with Duncan’s multiple Range Test for differences. Result showed that the treatments did not affect (P>0.05) on feed intake, body weight gain and feed conversion ratio. The treatments also did not affect (P>0.05) carcass percentage, abdominal fat, and visceral organ. The diet did not significantly improve performance and quality of broiler duck carcasses.
本试验旨在研究加饲马戟叶和节螺旋藻的肉鸭胴体的生产性能和品质。选取初始平均体重为463±29.38 g、多样性为6.35%的2周龄肉鸭168只,随机分为7个试验组,每组4个重复,每个重复6只鸭。处理分别为T0(基础饲粮为对照)、T1(基础饲粮+ 0.2%的马戟叶粉(MP))、T2(基础饲粮+ 0.5%的钢板节螺旋体粉(AP))、T3(基础饲粮+ 0.2%的MP+ 0.5%的AP)、T4(基础饲粮+ 0.4%的MP+ 0.5%的AP)、T5(基础饲粮+ 0.2%的MP+ 0.1%的AP)、T6(基础饲粮0.4%的MP+ 0.1%的AP)。测量的变量包括采食量、增重、饲料系数、胴体率、腹部脂肪和内脏器官。采用完全随机设计对数据进行方差分析,并继续采用Duncan多重极差检验进行差异分析。结果表明,各处理对采食量、增重和饲料系数无显著影响(P < 0.05)。各处理对胴体率、腹部脂肪和内脏器官也无显著影响(P < 0.05)。饲粮对肉鸭胴体生产性能和品质无显著改善。
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引用次数: 0
The productivity of 4th Generation KUB-2 Chicken 第四代KUB-2鸡的生产能力
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2019-12-31 DOI: 10.14334/jitv.v24i4.2033
T. Sartika, S. Iskandar
KUB-2 line of chicken has improved local chicken selected from the KUB-1 chicken line. KUB-2 was selected for more egg production and yellow shank. KUB-1 chicken has 64% various of black feather color, which sometimes tends to have unpreferred dark carcass. Yellow shank color has a positive correlation with the skin color of carcass. As many as 517 pullets of KUB-2 at 4th generation were divided into two groups of 194 pullets of KUB-2kk (yellow shank) and 323 pullets of KUB-2nk non-yellow shank). The chickens were raised intensively in the individual cages for the 24 weeks observation. Variables measured were age at first egg (AFE) bodyweight at first egg (BWFE), egg weight at first egg (EWFE), average egg weight (AEW), average egg production (AEP) during 24 weeks, feed conversion ratio (FCR) of 25-43 weeks of age, and mortality. The result showed that there was no statistically significant different (p>0.05) between KUB-2nk and KUB-2kk respectively for AFE of 156.2 d and 158.1 d, for BWFE of 1788 g and 1808 g, for EWFE of 31.32 g and 31.34 g, for AEP24 of 103.3 eggs or 61.5% and 101.9 eggs or 60.7%, and for FCR25-43 of 3.53 and 3.54. AEW increased with increasing age of hen, the mortality of the whole population was 0.98%.
KUB-2鸡系具有从KUB-1鸡系中选择的改良土鸡。选择KUB-2是为了生产更多的鸡蛋和黄茎。KUB-1鸡有64%的黑色羽毛颜色,有时会有未经处理的深色胴体。胴体黄柄颜色与胴体肤色呈正相关。将第4代的517只KUB-2幼崽分为两组:194只KUB-2kk(黄柄)幼崽和323只KUB-2nk(非黄柄)小崽。将鸡集中饲养在单独的笼子中进行24周的观察。测量的变量包括第一次产卵时的年龄(AFE)、第一次产卵体重(BWFE)、第一个产卵时的蛋重(EWFE)、平均蛋重(AEW)、24周内的平均产蛋量(AEP)、25-43周龄的饲料转化率(FCR)和死亡率。结果表明,对于156.2d和158.1d的AFE,1788g和1808g的BWFE,31.32g和31.34g的EWFE,103.3个蛋或61.5%和101.9个蛋或60.7%的AEP24,以及3.53和3.54的FCR25-43,KUB-2nk和KUB-2kk之间没有统计学上的显著差异(p>0.05)。AEW随着母鸡年龄的增长而增加,整个群体的死亡率为0.98%。
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引用次数: 4
Optimization of BS4 Enzyme production with Different Substrate Thickness and Type of Trays 不同底物厚度和托盘类型对BS4酶生产的优化
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2019-12-31 DOI: 10.14334/jitv.v24i4.2055
T. Haryati, A. P. Sinurat, H. Hamid, T. Purwadaria
BS4 enzyme that is produced from solid substrate fermentation (SSF) on coconut cake with Eupenicillium javanicum BS4 in tray bioreactor has been applied as a feed additive. It increases the nutritional value of animal feedstuff. The BS4 production on SSF may be influenced by the better aeration through the perforated trays or by the thinner substrate. The aim of this research is to optimize the production of BS4 with different substrate thicknesses and types of trays. The trial was carried out using a factorial randomized design (2x2x3) with 6 replicates. The first factor was the type of trays: i.e., non-perforated and perforated tray. The second factor was the thickness of the substrate: i.e., 1.5 and 3.0 cm, while the third factor was the duration of fermentation: i.e. 5, and 7 days. The variables observed were moisture content, dry matter loss (DML), mannanase and saccharification activities, soluble protein content, their specific activities, and yield. Statistical analysis showed no interactions between the three factors, but there were interactions between types of trays and substrate thicknesses, as well as type of trays and incubation times on the mannanase activity and yield of mannanase. The results showed that DML was observed on day 7 were around 31.43- 36.89. The highest mannanase activity was observed on the non-perforated tray with 3 cm thickness on day 7. The saccharification activity towards palm kernel meal was better in the non-perforated tray on day 7 but not influenced by The yield value of mannanase and saccharification activities on a non-perforated tray with 3.0 cm thickness on day 7 was also the highest. Based on energy efficiency and the cost of production, it can be concluded that the optimum condition to produce the BS4 enzyme was observed in the non-perforated tray with 3 cm thickness and fermented for 7 days.
采用托盘式生物反应器,利用javaneupenicillium BS4对椰子饼进行固体底物发酵生产的BS4酶作为饲料添加剂。增加了动物饲料的营养价值。SSF上BS4的生产可能受到通过穿孔托盘的更好的曝气或更薄的基板的影响。本研究的目的是优化不同衬底厚度和托盘类型的BS4生产。试验采用因子随机设计(2x2x3),共6个重复。第一个因素是托盘的类型:即,无孔和穿孔托盘。第二个影响因素是发酵底物的厚度,分别为1.5和3.0 cm;第三个影响因素是发酵时间,分别为5和7 d。观察到的变量包括水分含量、干物质损失(DML)、甘露聚糖酶和糖化活性、可溶性蛋白含量、它们的比活性和产量。统计分析表明,3个因素对甘露聚糖酶活性和产率的影响不存在交互作用,但托盘类型和底物厚度、托盘类型和孵育时间对甘露聚糖酶活性和产率有交互作用。结果显示,第7天DML为31.43 ~ 36.89。第7天,甘露聚糖酶活性在厚度为3cm的无孔托盘上最高。第7天,无孔托盘对棕榈仁粕的糖化活性较好,但不受影响。第7天,3.0 cm厚度的无孔托盘的甘露聚糖酶产率和糖化活性也最高。从能量效率和生产成本两方面考虑,BS4酶的最佳生产条件为在厚度为3cm的无孔托盘中发酵7 d。
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引用次数: 2
The Use of Coffee Husk as Napier Grass Substitution and Its Effect on Madura Cattle Performance 咖啡渣替代Napier草及其对马杜拉牛生产性能的影响
IF 0.5 Q4 VETERINARY SCIENCES Pub Date : 2019-12-31 DOI: 10.14334/jitv.v24i4.2006
A. Sudarman, G. Listiawan, L. Khodijah
This research aimed to evaluate the performance of fattened madura cattle fed on coffee husk as a source of fibre to substitute grasses. Twenty Madura steers aged approximately 1.5 to 2.0 years with initial weight of 165-190 kg were divided randomly into four different experimental diets, namely R0= 90% concentrates +0% coffee husk +10% napier grass, R1= 90 % concentrates +3.33% coffee husk +6.67% napier grass, R2 = 90% concentrate +10% 6.67% coffee husk +3.33% napier grass, R3 = 90% concentrates 90% + 10% coffee husk +0% napier grass. The feed was given at 3% body weight of dry mater. The cows were kept in individual pen for two months. Variables measured were dry mater intake, feed efficiency, average daily gain (ADG), digestibility of feed and income over feed cost. Data obtained were analyzed using analysis of variance based on randomized block design followed by Duncan’s multiple range test. Results showed that dry matter intake, ADG, feed efficiency and feed digestibility of cattle on each treatment of the feed were not significantly different (P > 0.05). Average of dry matter intake and daily gain for R0, R1, R2, and R3 were 6.01, 5.84, 5.73 and 5.62 kg/head/day and 0.88, 0.87, 0.84 and 0.93 kg/head/day respectively. While the average of feed efficiency and DM digestibility for R0, R1, R2, and R3 were 14.64, 14.89, 14.65 and 16.54 % and 84.82, 84.37, 83.47 and 83.30 %, respectively. It is concluded that the used of 10% coffee husk as a source of fibre for substitution of napier grass can be used without negative effect on madura’s cattle performances and tend to give higher values of IOFC on fattening program.
本研究旨在评估以咖啡皮作为纤维替代草的来源饲养的育肥马都拉牛的性能。将20头年龄约1.5至2.0岁、初始体重为165-190 kg的马杜拉牛随机分为四种不同的实验日粮,即R0=90%浓缩物+0%咖啡壳+10%napier草、R1=90%浓缩品+3.33%咖啡壳+6.67%napier草和R2=90%精料+10%6.67%咖啡壳+3.33%napier草,R3=90%浓缩物90%+10%咖啡皮+0%纳皮尔草。给料量为干物质重量的3%。奶牛被单独圈养了两个月。测量的变量包括干物质摄入量、饲料效率、平均日增重(ADG)、饲料消化率和饲料成本收入。所获得的数据采用基于随机区组设计的方差分析进行分析,然后进行Duncan多范围检验。结果表明,各处理牛的干物质摄入量、ADG、饲料效率和饲料消化率无显著差异(P>0.05),R0、R1、R2和R3的平均干物质摄入量和日增重分别为6.01、5.84、5.73和5.62kg/头/天和0.88、0.87、0.84和0.93kg/头/日。R0、R1、R2和R3的平均饲料效率和DM消化率分别为14.64、14.89、14.65和16.54%以及84.82、84.37、83.47和83.30%。得出的结论是,使用10%的咖啡皮作为纤维来源来代替napier草可以对madura的牛的性能没有负面影响,并且在育肥计划中往往给出更高的IOFC值。
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引用次数: 0
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Jurnal Ilmu Ternak dan Veteriner
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