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Application of international committee for animal recording (ICAR) methodology in dairy herd management in south of Russia 国际动物记录委员会(ICAR)方法在俄罗斯南部奶牛群管理中的应用
Q4 Veterinary Pub Date : 2022-07-30 DOI: 10.51227/ojafr.2022.31
S. Oleinik, V. Skripkin, Alexander Ershov, S. Shlykov, R. Omarov
This experiment was conducted to determine the advantages of introducing modern innovative approaches to dairy herd management based on the study and implementation of the methodological of International Committee for Animal Recording (ICAR). This research shows the main directions for introduction to new breeding and the technological model of interaction with breeding farms for breeding dairy cattle. This interaction occurs through the services provision for breeding farms, the control-assistant and expert-boniter services, as well as laboratories for selection control of milk quality and genetic control. The tasks of the control-assistant service included participation in the control milking of cows and individual milk samples picking from each cow and its delivery to the laboratory in a chilled form. Using as the example dairy herd of the black and white breed by studying the dynamics of somatic cells has been showing the effectiveness of different methods for assessing the quality of milk. Implementation of the milk quality regular monitoring during 1-2 months allows bringing the main parameters of milk quality in line with the requirements of national and international ICAR standards. The cow's conformation assessment by animals' linear assessment allows revealing the bull’s prepotent abilities and choosing the right strategy for improving the cow's conformation in the herd. Genetic well-being assessment of cows makes it possible to exclude unwanted individuals with genetic abnormalities and use only healthy animals in breeding. The research purpose was studying the possibility of applying the ICAR method in Russian breeding livestock to improve the dairy herd management system. The research results showed that Implementation of individual veterinary measures for two months allowed reducing the average somatic cell count by 1.85 times and reaching the level recommended by ICAR. The spread of individual indicators also significantly decreased. Therefore, Using the individual monitoring of dairy raw materials quality assessment makes it possible to study the influence of para-typical (climatic) factors on the content of dairy components, as well as to stabilize the quality parameters in terms of the level of somatic cells not higher than 200 thousand cells/cm3.Keywords: Breeding, Dairy cattle breeding, Dairy herd, Genetic resources, Milk quality.
本试验旨在通过对国际动物记录委员会(ICAR)方法的研究和实施,确定在奶牛群管理中引入现代创新方法的优势。本研究指出了奶牛养殖新育种的引进和与养殖场互动的技术模式的主要方向。这种相互作用是通过为养殖场提供服务、控制助理和专家服务以及为选择、控制牛奶质量和遗传控制提供实验室来实现的。控制助理服务的任务包括参与控制奶牛的挤奶和从每头奶牛身上提取牛奶样本并将其以冷冻形式送到实验室。以黑白两种奶牛为例,通过对体细胞动态的研究,证明了不同方法评价牛奶品质的有效性。实施为期1-2个月的牛奶质量定期监测,可以使牛奶质量的主要参数符合国家和国际ICAR标准的要求。通过动物的线性评估对牛的构象进行评估,可以揭示公牛的优势能力,并选择正确的策略来提高牛在群体中的构象。对奶牛进行遗传健康评估,可以排除不需要的具有遗传异常的个体,只使用健康的动物进行育种。本研究的目的是研究在俄罗斯种畜中应用ICAR方法改进奶牛群管理系统的可能性。研究结果表明,实施个体兽医措施两个月,使体细胞平均计数减少1.85倍,达到ICAR推荐的水平。个别指标的扩散幅度也明显缩小。因此,通过对乳制品原料质量评价的单项监测,可以研究非典型(气候)因素对乳制品成分含量的影响,也可以将质量参数稳定在体细胞不高于20万个/cm3的水平。关键词:育种,奶牛育种,奶牛群,遗传资源,牛奶品质
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引用次数: 0
Effect of dietary supplemented cocoa pod husk meal on the reproductive performance of rabbits 饲粮中添加可可豆壳粉对家兔繁殖性能的影响
Q4 Veterinary Pub Date : 2022-07-30 DOI: 10.51227/ojafr.2022.27
P. O. Ozung, K. Anoh, D. Alawa, E. I. Evans, Oluwatosin Oluwamoroti Ohotuowo Kennedy, Jude Ababekong Ubua
This study determined the dietary effect of cocoa pod husk meal (CPHM) on the reproductive performance of rabbits. Twelve iso-nitrogenous (16.05% CP) and iso–caloric (2500.12 Kcal kg-1 ME) diets were formulated. The CPHM was included at 0, 12.5, 25 and 37.5% levels for T1, T2, T3, and T4 raw; T5, T6, T7, T8 fermented and T9, T10, T11, T12 hot–water treated CPHM. Sixty weaned rabbits between 5 and 6 weeks old of both sexes (30 males and 30 females) with mean initial body weight of 606.42±1.30g were used. The rabbits were randomly distributed using a completely randomized design (CRD). The animals were crossed at maturity for reproductive performance evaluation. Total protein concentrations of reproductive parts were determined. Result showed no significant dietary effect on reproductive performance. The 37.5% level recorded zero pregnancy in the raw and hot–water groups. Average gestation period ranged between 30 and 31 days. Average litter size at birth ranged 1 – 4 kittens. Average weaning weight ranged between 475 and 580.25g with the least weight in the raw group. Milk yield ranged between 205.46 and 262.94g. The sperm volume and gonadal sperm reserve recorded significant effect (P<0.05). In the raw and hot–water groups, the sperm volume decreased marginally. The protein concentration in the testes recorded higher significant (P<0.05) values in the control diet and the least value in raw group. The study concluded that fermented CPHM diets performed best at 37.5% level in terms of reproductive performance of rabbits.Keywords: Cocoa, Gonadal sperm reserve, Kindling, Milking, Sperm volume.
本研究测定了可可荚壳粉(CPHM)日粮对家兔繁殖性能的影响。制定了12个等氮(16.05%CP)和等热量(2500.12 Kcal kg-1ME)日粮。CPHM包括在0、12.5、25和37.5%水平的T1、T2、T3和T4原料;T5、T6、T7、T8发酵和T9、T10、T11、T12热水处理的CPHM。使用60只5至6周龄的断奶兔子(30只雄性和30只雌性),平均初始体重为606.42±1.30g。兔子采用完全随机设计(CRD)随机分布。这些动物在成熟时进行杂交,以评估繁殖性能。测定生殖部位的总蛋白质浓度。结果表明,饮食对生殖性能没有显著影响。37.5%的水平记录了生水和热水组的零妊娠。平均妊娠期在30到31天之间。出生时平均产仔数为1-4只。断奶平均体重在475至580.25g之间,其中生组体重最低。产奶量在205.46至262.94g之间。精子体积和性腺精子储备有显著影响(P<0.05)。生水组和热水组的精子体积略有下降。对照组睾丸蛋白质含量显著高于对照组(P<0.05),生组最低。研究得出结论,就兔子的繁殖性能而言,发酵CPHM日粮在37.5%的水平下表现最好。关键词:茧,性腺精子储备,受精,挤奶,精子体积。
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引用次数: 0
Income analysis on broiler chicken farming in partnership system during the COVID-19 pandemic in Tanralili district, Indonesia 2019冠状病毒病大流行期间印度尼西亚Tanralili地区合伙制肉鸡养殖的收入分析
Q4 Veterinary Pub Date : 2022-07-30 DOI: 10.51227/ojafr.2022.28
S. Nurlaelah, Harnianti Harnianti, A. Asnawi, S. Sirajuddin
This study was aimed to determine the income of farmers who carry out a partnership system during the COVID-19 Pandemic in Lekopancing Village, Tanralili District, Maros Regency. The research was conducted on March to April 2021. The type of research used is descriptive quantitative. The sample in this study were farmers who partnered with the X’s company were 2 farmers, the Y’s company were 12 farmers and the Z’s company were 8 breeder. Data was collected through interviews with the help of a questionnaire as the research instrument. The results showed that the COVID-19 pandemic impacted to the incomes of farmers who partnered with companies X, Y, and Z, other than that it influence price fluctuations. The income earned by farmers with partnership patterns on a business scale of 3000 tail is the highest breeder who partners with PT. Z was USD 1,564.63 and USD 0.52/tail/period. As for the business scale of 4000, the highest is PT. Y of USD 2,285.97 and USD 0.76/tail/period.Keywords: Agricultural management, Broiler chicken, Income, Partnership system, Poultry farming.
本研究旨在确定马罗斯县Tanralili区的Lekopancing村在COVID-19大流行期间实施伙伴关系制度的农民的收入。该研究于2021年3月至4月进行。使用的研究类型是描述性定量的。本研究的样本是与X公司合作的农民,有2名农民,Y公司有12名农民,Z公司有8名饲养员。数据的收集是通过访谈,帮助问卷作为研究工具。结果显示,新冠疫情对与X、Y、Z公司合作的农民的收入产生了影响,但对价格波动没有影响。3000尾经营规模的合伙制农户的收入最高,与PT. Z合作的养殖户为1564.63美元/尾/期,0.52美元/尾/期。4000家的业务规模,PT. Y最高为$ 2,285.97,$ 0.76/尾/期。关键词:农业经营,肉鸡,收益,合伙制,家禽养殖
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引用次数: 0
Determining the radium concentration in vegetables and fruits in Al-Najaf, Iraq 伊拉克纳杰夫蔬菜和水果中镭浓度的测定
Q4 Veterinary Pub Date : 2022-07-30 DOI: 10.51227/ojafr.2022.29
Ali Jaafar Azeez, Awsam Abdulsattar Marzaali, A. Abojassim, H. Mraity, Mohammed Dhehyaa Shareef, Haneen Alsafi
Amount of pollution radiation in foodstuffs and feedstuffs are very necessary to measure because it is a direct contact with human and animal health. Therefore, the present investigation is useful for the health and environmental data base. The study included measurement of effective radium-226 content (CRa) in some chosen samples of vegetables and fruits (local and imported) in Najaf governorate. The CRa were measured in samples of vegetables and fruits using Solid State Nuclear Track Detectors (LR-115 Type II). Also, the annual effective dose (AED) associated with the exposure due to annual intake of 226Ra were calculated from ingestion of vegetables and fruits samples for adults. The results were revealed that the average value of CRa in vegetables and fruits samples in the present study was 3.98±1.08 Bq/kg and 1.73±0.11 Bq/kg, respectively. While, the average of AED (mSv/y) for vegetables and fruits samples was 0.067±0.018 and 0.082±0.005, respectively. Also, the results showed that the average value of AED from fruits consumption is larger than in vegetables, but the result is not significant. All results of the CRa and AED of the studied samples had been compared with the worldwide reported value (median). Accordingly, it was found that all findings were lower than that of the recommended limits of the UNSCEAR 2000. Finally, based on present investigations, no health risk expected when considering eating vegetables and fruits of Al-Najaf of Iraq.Keywords: Alpha emitters, Food contamination, Radium-226, Herbal samples, Al-Najaf.
食品和饲料中的污染辐射量是非常必要的测量,因为它与人类和动物的健康直接接触。因此,本研究对健康和环境数据库是有用的。该研究包括测量纳杰夫省一些选定的蔬菜和水果(本地和进口)样本中的有效镭-226含量。使用固态核轨道探测器(LR-115 II型)在蔬菜和水果样品中测量CRa。此外,由于每年摄入226Ra,与暴露相关的年有效剂量(AED)是根据成年人摄入蔬菜和水果样本计算得出的。结果表明,本研究中蔬菜和水果样品的CRa平均值分别为3.98±1.08 Bq/kg和1.73±0.11 Bq/kg。而蔬菜和水果样品的AED平均值(mSv/y)分别为0.067±0.018和0.082±0.005。此外,结果表明,水果消费的AED平均值大于蔬菜,但结果并不显著。研究样本的CRa和AED的所有结果均与全球报告值(中位数)进行了比较。因此,发现所有调查结果都低于2000年联合国辐射科委建议的限度。最后,根据目前的调查,在考虑食用伊拉克纳杰夫的蔬菜和水果时,预计不会有健康风险。关键词:阿尔法辐射源,食品污染,镭-226,草药样本,纳杰夫。
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引用次数: 0
Performance of blackhead Ogaden sheep fed different grasses (Chloris gayana, Pennisetum purpureum, Panicum maximum and Cynodon dactylon) basal diets and the same concentrate mixture 黑头欧加登羊饲喂不同禾草(绿尾草、紫尾草、大头草和狗尾草)基础饲粮和相同精料混合物的生产性能
Q4 Veterinary Pub Date : 2022-07-30 DOI: 10.51227/ojafr.2022.30
M. Ahmed, G. Animut, Guled Hassen, Kawnin Abdimahad
A study was conducted to determine the effect of feeding Rhodes grass (RG; Chloris gayana) as treatment 1 (T1), elephant grass (EG; Pennisetum purpureum as T2), guinea grass (GG; Panicum maximum as T3) and bermuda grass (BG; Cynodon dactylon as T4) supplemented with a similar amount of concentrate mixture (CM; wheat bran (WB) and Noug seed cake (NSC) at 67:33 ratio) on performance and economy of fattening of Blackhead Ogaden sheep. The study consisted of a feeding and digestibility trials of 90 and 7 days long, respectively. Twenty-four intact yearling Blackhead Ogaden sheep with an initial body weight (BW) of 15.83±0.04 kg (mean±SD) were used in a randomized complete block design based on their initial BW with four treatments and six replications. All animals received 300 g dry matter (DM) of CM. Nutrient concentration of RG, EG, GG, BG, NSC and WB were 5.5, 8.8, 7.6, 7.9, 24.3 and 14.0% crude protein (CP), and 83.3, 74.5, 75.4, 81.5, 39.0 and 45% neutral detergent fiber, respectively on DM basis. Intake of DM was 696, 700, 719 and 716 g/day (SEM = 0.004) for T1, T2, T3 and T4, respectively and was lowest for T1 and highest for T3. The CP intake was also lowest for T1 (89 g/day), and similar among the other 3 treatments (99-103 g/day). Digestibility of CP and organic matter were highest for T2, intermediate for T3 and T4 and lowest for T1. Average daily gain was in the order of T2 > T3 = T4 > T1 (27, 63, 50 and 45 g/day (SEM = 13.1) for T1, T2, T3 and T4, respectively); whereas hot carcass weight did not significantly differ among treatments (5.7, 6.4, 6.1 and 6.3 kg (SEM = 0.36) for T1, T2, T3 and T4, respectively). Total return, net income and marginal rate of return were all in the order of T2 > T4 > T3 > T1. Therefore, based on biological performance as well as economic return, sheep fed elephant grass perform better. However, variations in performance and economic return among the four grass species needs to be taken cautiously as part of the difference might have attributed to differences in the stage of maturity of the grasses up on harvest for feeding the lambs.Keywords: Blackhead Ogaden sheep, Digestibility, Feed intake, Performance, Weight gain.
研究了饲喂罗氏草(RG;绿草(Chloris gayana)为处理1 (T1),象草(EG;紫荆草(Pennisetum purpureum),豚草(GG;Panicum maximum为T3)和百慕达草(BG;长齿鲨(Cynodon dactylon, T4)添加等量的精料混合物(CM;麦麸(WB)和诺格籽饼(NSC)以67:33的比例对黑头欧加登羊育肥性能和经济性的影响。试验分为饲养期90 d和消化期7 d。选用24只初始体重为15.83±0.04 kg (mean±SD)的完整黑头欧加登绵羊,按初始体重采用完全随机区组设计,分4个处理,6个重复。所有动物均给予300 g干物质CM。在DM基础上,RG、EG、GG、BG、NSC和WB的营养浓度分别为粗蛋白质(CP)的5.5、8.8、7.6、7.9、24.3和14.0%,中性洗涤纤维的浓度分别为83.3、74.5、75.4、81.5、39.0和45%。T1、T2、T3和T4组DM摄入量分别为696、700、719和716 g/d (SEM = 0.004),其中T1组DM摄入量最低,T3组DM摄入量最高。CP摄入量在T1组也最低(89 g/天),其他3个处理组相似(99-103 g/天)。CP和有机物消化率以T2最高,T3和T4居中,T1最低。平均日增重顺序为T2 > T3 = T4 > T1 (T1、T2、T3和T4分别为27、63、50和45 g/d (SEM = 13.1));而热胴体重在处理间差异不显著(T1、T2、T3和T4分别为5.7、6.4、6.1和6.3 kg (SEM = 0.36))。总收益、净收入、边际收益率依次为T2 > T4 > T3 > T1。因此,从生物性能和经济效益两方面考虑,以象草喂养的羊表现更好。然而,这四种草在性能和经济回报方面的差异需要谨慎对待,因为这种差异的部分原因可能是牧草在饲养羔羊时收获的成熟阶段的差异。关键词:黑头欧登羊,消化率,采食量,生产性能,增重。
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引用次数: 0
Nutrient content and quality of soybean meal waste fermented by Aspergillus ficuum and Neurospora crassa 黄曲霉和粗脉孢菌发酵豆粕废弃物的营养成分和品质
Q4 Veterinary Pub Date : 2022-07-30 DOI: 10.51227/ojafr.2022.32
G. Ciptaan, Mirnawati Mirnawati, Qurrata Aini, M. Makmur
Present research aimed to increase soybean meal waste quality and nutrient by fermentation using different ratio of mixed fungus inoculum (Aspergillus ficuum and Neurospora crassa) and fermentation time. The primary materials were soybean meal waste (SMW), fungus Aspergillus ficuum and Neurospora crassa. The experiment applied a completely randomized design (CRD) with a 3 × 3 factorial pattern and three replications. Two treatments were given in this study, factor A (combination of A. ficuum and N. crassa), comprising of A1 (3:1), A2 (3:2), and A3 (3:3). Factor B (fermentation time) comprising of B1 (5 days), B2 (7 days), and B3 (9 days). The variance analysis exposed a highly significant interaction between factor A and factor B, and those factors also exposed a highly significant effect. The correlation between SMW crude protein and broiler nitrogen retention showed a positive trend, contrary SMW crude fiber content negatively affected crude fiber digestibility. In conclusion, the combination of A. ficuum and N. crassa (3:2) and seven days fermentation period showed optimal results as seen from 28.25% crude protein, 13.77% crude fibre, 61.16 nitrogen retention and 58.76% crude fibre digestibility of fermented SMW.Keywords: Aspergillus ficuum, Crude protein, Digestibility, Fermentation, Neurospora crassa.
本研究旨在通过使用不同比例的混合真菌接种物(Aspergillus ficuum和Neurospora crassa)和发酵时间进行发酵,以提高豆粕废弃物的质量和营养。主要原料为豆粕废弃物(SMW)、真菌黄曲霉(Aspergillus ficuum)和粗脉孢菌(Neurospora crassa)。实验采用完全随机设计(CRD),采用3×3析因模式和三次重复。本研究中给出了两种处理,因子A(A.ficuum和N.crassa的组合),包括A1(3:1)、A2(3:2)和A3(3:3)。因子B(发酵时间),包括B1(5天)、B2(7天)和B3(9天)。方差分析揭示了因子a和因子B之间的高度显著的相互作用,这些因子也暴露了高度显著的影响。SMW粗蛋白与肉鸡氮保持率呈正相关,而SMW粗纤维含量对粗纤维消化率的影响则相反。总之,在7天的发酵期内,A.ficuum和N.crassa(3:2)组合的发酵SMW的粗蛋白含量为28.25%,粗纤维含量为13.77%,氮保持率为61.16%,粗纤维消化率为58.76%。
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引用次数: 1
Breeding strategies of Simien sheep in Simien mountain region of Ethiopia 埃塞俄比亚塞米恩山区塞米恩羊的育种策略
Q4 Veterinary Pub Date : 2022-07-30 DOI: 10.51227/ojafr.2022.25
Talemaw Mulat, Y. Dagnew, Kasahun Desalegn
This study was conducted to characterize the existing sheep breeding strategies as an essential step in designing a breeding program for linking sheep production in the Simien mountain region of Ethiopia. Interview with sheep keepers, direct ranking method of traits, and field observations were carried out in selected districts of Simien mountain region. Sheep kept mainly as a source of income, saving and meat with an index value of 0.27, 0.21, and 0.20 in the Beyeda district whereas the corresponding value for Janamora was 0.26, 0.22, and 0.19, respectively. Mean sheep flock sizes were 14.9 and 16.2 in Beyeda and Janamora districts of Ethiopia. Natural and uncontrolled breeding was common in the Simien mountain region of Ethiopia. Coat color, body conformation, and fast growth rate were important traits in selecting breeding rams in both study districts. Coat color and appearance were selection criteria for breeding ewes in both study districts. It is observed that Simien sheep is highly valued for its tasty meat and produce under low input conditions. However, the survival of Simien sheep is endangered due to uncontrolled breeding, intervention failures in livelihood, and market-oriented agricultural systems. In conclusion, the main breeding objective for sheep production have been defined as increasing meat production and marketed animals and this is driven by market demands. Compared with other local sheep types, Simien was rated highly by both producers and consumers in their tasty meat. These characteristics make the Simien sheep economically more important. Yet Simien sheep need to be conserved as they could serve as a source of safe and tasty products for consumption.Keywords: Breeding practice, Livestock population, Mountain region, Sheep flocks, Simien sheep.
本研究旨在将现有的绵羊养殖策略描述为设计连接埃塞俄比亚西米恩山区绵羊生产的养殖计划的重要步骤。对四面山区部分地区的绵羊饲养员进行了访谈,采用性状直接排序法,并进行了实地观察。绵羊主要作为收入、储蓄和肉类来源饲养,Beyeda区的指数值分别为0.27、0.21和0.20,而Janamora的相应值分别为0.21、0.22和0.19。埃塞俄比亚Beyeda和Janamora地区的平均羊群规模分别为14.9和16.2。在埃塞俄比亚的西米恩山区,自然和不受控制的繁殖很常见。毛色、体型和快速生长率是两个研究区选育公羊的重要性状。毛色和外观是两个研究区繁殖母羊的选择标准。据观察,四面羊因其肉质鲜美和在低投入条件下生产而备受重视。然而,由于繁殖失控、生计干预失败和市场化的农业制度,四面羊的生存受到威胁。总之,绵羊生产的主要育种目标被定义为增加肉类产量和市场动物,这是由市场需求驱动的。与当地其他羊种相比,四面羊的肉质鲜美,受到生产商和消费者的高度评价。这些特性使得四面羊在经济上更加重要。然而,四面羊需要保护,因为它们可以作为安全美味的消费产品的来源。关键词:养殖实践;牲畜种群;山区;绵羊群;四面羊。
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引用次数: 0
A response surface model to predict the profitability of raising small-scale free range domestic pigeon 预测小规模散养家鸽盈利能力的响应面模型
Q4 Veterinary Pub Date : 2022-07-30 DOI: 10.51227/ojafr.2022.24
Partha Samanta, N. Akter, S. Islam, S. Islam, Emran Hossain
The study aimed to investigate the comparative profitability of raising different breeds of small- scale free range domestic pigeon in the Chattogram metropolitan area of Bangladesh. A cross-sectional survey was carried out for a period of three months from July to September 2021 using a structured questionnaire. Results indicated that there were no differences among the performance parameters of the non-descriptive, Gola and Giribaz breeds of pigeon. However, the non-descriptive breeds produced more eggs and thus squabs per year than the Gola and Giribaz. Similarly, the average pause size, feed supply per day and market age were lower in the local breeds compared with Gola and Giribaz. Hatchability percentage of the local breed was higher than the other breeds. Average mortality was moderately higher in the Giribaz. The average flock size was 4.9±0.70 pair. The average annual egg and squab productions were 20.6±1.10 and 10.7±1.00 pairs, respectively. The average daily feed supply was 37.8±1.5 g/bird. The average clutch and pause sizes were 2.0 and 17.3 day, respectively. Average market age, hatchability and mortality were 30.6±0.90 day, 51.4±2.20% and 7.6±1.6%, respectively. Mean feed and housing cost were 1008±24.7 and 443±42.8 Bangladeshi taka (BDT) per pair/year, respectively. Mean market price per pair adult and per squab was BDT 365±18.6 and 130±4.9, respectively. Flock size and pause size had strong positive and negative correlations with annual squab production. There were no significant differences between the net profit of the farms rearing different breeds of pigeon. However, farms raising local breeds had the highest annual net profit (BDT 823/pair) compared with other farms raising Giribaz (BDT 478/pair) and Gola breeds (BDT 319.70/pair). Principal component analysis identified annual egg production and feed cost as the principal eigenvector determining net profit. It was concluded that despite marginal profit, small-scale free range domestic pigeon farming was economically viable for the subsistence of the rural livelihoods.Keywords: Free range, Giribaz, Gola, Pigeon, Profitability.
本研究旨在调查孟加拉国Chattogram大都市区饲养不同品种的小型散养家鸽的相对盈利能力。从2021年7月至9月,采用结构化问卷进行了为期三个月的横断面调查。结果表明,非描述性品种、戈拉品种和吉里巴兹品种的生产性能参数没有差异。然而,非描述性品种每年比Gola和Giribaz生产更多的鸡蛋和乳鸽。同样,与戈拉和吉里巴兹相比,当地品种的平均暂停量、每日饲料供应量和市场年龄也较低。地方品种的孵化率高于其他品种。吉里巴兹的平均死亡率略高。平均鸡群大小为4.9±0.70对。年平均产蛋量为20.6±1.10对,雏鸽产蛋量为10.7±1.00对。平均日供料量为37.8±1.5 g/只。平均孵蛋时间和暂停时间分别为2.0天和17.3天。平均市龄30.6±0.90天,平均孵化率51.4±2.20%,平均死亡率7.6±1.6%。平均饲养成本和饲养成本分别为每对/年1008±24.7和443±42.8孟加拉塔卡(BDT)。每对成虫和乳鸽的平均市场价格分别为365±18.6和130±4.9 BDT。雏群规模和暂停规模与雏鸽年产量呈显著正相关和负相关。饲养不同品种鸽子的养殖场纯利润差异不显著。然而,饲养当地品种的养殖场的年净利润最高(823比特币/对),而饲养吉里巴兹(478比特币/对)和戈拉(319.70比特币/对)的其他养殖场的年净利润最高。主成分分析确定年产蛋量和饲料成本是决定净利润的主要特征向量。结论是,尽管利润微薄,但小规模散养家鸽在经济上是可行的,可以满足农村生计的需要。关键词:散养,Giribaz, Gola,鸽子,盈利能力
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引用次数: 0
Breeding practices and traits preference in dairy cattle in Gedeo agroforestry of Ethiopia 埃塞俄比亚Gedeo农林业奶牛的育种实践和性状偏好
Q4 Veterinary Pub Date : 2022-07-30 DOI: 10.51227/ojafr.2022.33
D. Haile, B. Tesfahun
The study was conducted to identify breeding practices and traits preferences of the dairy cattle producers in the southern part of Ethiopia. Representative sample households were selected by SRS (Simple Random Sampling) techniques. A cross-sectional survey with a structured questionnaire was used to collect the data on the purpose of keeping dairy cattle, herd composition, source of dairy cattle, trait preference, and breeding practices performed by the farmers. The data were analyzed using statistical software SPSS 27, and chi-square was used to compare categorical variables. The herd composition of the Bule district is significantly different from the rest of the districts in the mean number of calves, heifers, and bulls. The Yirgachefe district significantly differs in the mean number of cows compared to other districts. The breed preference of most farmers (81.67%) is cross-bred bulls (Jersey and Holstein Frisian). There are not enough bulls on the farms; only 21.7% of them have a breeding bull, and the primary sources of bulls in the study community are the grazing areas and the neighbors. Respondents preferred artificial insemination (96.1%) to natural mating. Milk yield, appearance, and genotype were important traits in selecting a dam, whereas genotype, appearance, and fast growth rate were the most preferred traits in sire ranking. The farmers' breeding objectives were to improve milk production and increase cash income. Therefore, establishing a village-based mating program for the genetic improvement of dairy cattle in the study area is recommended to overcome the shortage of bulls.
该研究旨在确定埃塞俄比亚南部奶牛生产者的育种做法和性状偏好。采用简单随机抽样(SRS)方法选取具有代表性的样本家庭。采用横断面调查和结构化问卷法,收集了农户饲养奶牛的目的、畜群组成、奶牛来源、性状偏好和养殖方式等方面的数据。数据分析采用SPSS 27统计软件,分类变量比较采用卡方法。在小牛、小母牛和公牛的平均数量上,蓝区牧群的组成与其他地区有显著不同。与其他地区相比,Yirgachefe地区的平均奶牛数量有很大差异。大多数农民(81.67%)的品种偏好是杂交公牛(泽西和荷斯坦弗里斯兰)。农场里没有足够的公牛;种群中有一头繁殖公牛的比例仅为21.7%,种群中公牛的主要来源是牧区和邻近地区。与自然交配相比,受访者更倾向于人工授精(96.1%)。产奶量、外观和基因型是选择公羊的重要性状,而基因型、外观和生长速度是选择公羊的首选性状。农民的养殖目标是提高产奶量和增加现金收入。因此,建议在研究区建立以村庄为基础的奶牛遗传改良配种计划,以克服公牛短缺的问题。
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引用次数: 1
The spreading and molecular characterization of the fungus Saprolegnia parasitica in the water of Al-Diwaniyah river of Iraq 真菌Saprolegnia parasitica在伊拉克Al-Diwaniyah河水中的传播及其分子特征
Q4 Veterinary Pub Date : 2022-07-30 DOI: 10.51227/ojafr.2022.26
Muataz Mohammed AZOOZ AL-ZAMILI, Majid KADHIM ABOUD
The water mold Saprolegnia parasitica is a chief species of oomycetes that affects a wide range of plant, natural ecosystems, fish and the aquaculture industry. The current study aimed to investigate the isolation and identification of some aquatic fungi like Saprolegnia spp. and also molecular characterization of Saprolegnia parasitica in the water of Al-Diwaniyah river of Iraq using the baiting method for isolation and PCR polymerase chain reaction for molecular diagnosis of fungi. A total of 60 samples were taken from three study sites of river: 25 samples of Al-Shafi’iah city bridge (Najaf road) as first site (S1); 25 samples of Hawly Al-Jamiah road bridge, Umm Al-Khail area, as second site (S2); and 10 samples of Al-Orouba bridge as the third site (S3). Molecular diagnosis was carried out by PCR examination using primers for the rDNA gene and its presence in Saprolegnia parasitica, as DNA was obtained at a concentration of 685.4-99.4 μg/μl and a purity of 1.92-1.8. The samples from the first site gave the highest number of 18 isolates (45%), followed by samples from the second site with 14 isolates (35%). The samples from the third site showed a number of 10 isolates (20%). The species S. parasitica was more visible during February 2020 with a number of 17 isolates, and less visible in April 2021, with a number of 3 isolates. In conclusion, the variation in the presence of the types of infectious aquatic fungi Saprolegnia spp. in the Al-Diwaniyah river of Iraq in different sites and months of 2021 showed a high percentage of isolates for Al-Shafi’iah city bridge (Najaf road) site and the highest number of Saprolegnia parasitica in February 2020. There is a need for further examination of oomycetes in different sites of rivers of Iraq in different months.
水霉菌Saprolegnia parasitica是卵菌纲的主要物种,影响广泛的植物、自然生态系统、鱼类和水产养殖业。本研究旨在利用诱饵法分离和聚合酶链式反应对伊拉克Al-Diwaniyah河水中寄生的Saprolegnia等水生真菌进行分子鉴定。共从河流的三个研究地点采集了60个样本:Al-Shafieiah城市大桥(Najaf路)的25个样本作为第一个地点(S1);Umm Al-Khail地区Hawly Al-Jamiah公路桥的25个样本,作为第二个现场(S2);以及10个Al Orouba大桥的样本作为第三个地点(S3)。使用rDNA基因及其在寄生Saprolegnia中的存在的引物通过PCR检测进行分子诊断,因为获得的DNA浓度为685.4-99.4μg/μl,纯度为1.92-1.8。来自第一个位点的样本给出了最高数量的18个分离株(45%),其次是来自第二个位点的14个分离株的样本(35%)。来自第三个位点的样本显示了10个分离株(20%)。寄生S.parasitica在2020年2月更为明显,有17个分离株,而在2021年4月不太明显,有3个分离株。总之,2021年伊拉克Al-Diwaniyah河不同地点和月份的感染性水生真菌Saprolegnia spp.的存在类型变化表明,Al-Shafieiah市桥(Najaf路)地点的分离株比例很高,2020年2月寄生Saprolegia的数量最高。有必要在不同月份对伊拉克河流不同地点的卵菌进行进一步检查。
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引用次数: 0
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Online Journal of Animal and Feed Research
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