Research Aspects in Agriculture and Veterinary Sciences Vol. 1最新文献

{"title":"Study on the Effect of Day Length and Seasonal Variation on Haematological, Biochemical and Hormonal Traits of Indigenous Guinea Fowl (Numida meleagris) in Ghana","authors":"K. Okyere, Kagya-Agyemang James Kwame, Annor Serekye Yaw, Asabere-Ameyaw Akwasi, Kyere Gyeabour Clement, Afua Sarpong Asamoa-Bonsu","doi":"10.9734/BPI/RAAVS/V1/10520D","DOIUrl":"https://doi.org/10.9734/BPI/RAAVS/V1/10520D","url":null,"abstract":"This study was conducted to investigate the effect of day length and season on haematological characteristics, biochemical and hormonal profiles of laying Guinea fowls (Numida meleagris). Four hens and 1 male were each subjected to 12 hours of light and 12 hours of darkness (12L: 12D), 14hours of light and 10 hours of darkness (14L: 10D), 16hours of light and 8 hours of darkness (16L: 8D) and 18hours of light and 6 hours of darkness (18L: 6D). Each group was replicated three times and reared in three seasons (Dry-December-March, Major rains-April-July and Minor rains-August-November) in a 3x4 factorial experiment. Data were analyzed using General Linear Model procedure of SAS. Significantly (p 0.05) in all parameters except prolactin. The findings of this study suggest that daylength of 14-16hrs and major rainy season in Ghana supports adequate haematological, biochemical and hormonal profiles of Guinea.","PeriodicalId":21101,"journal":{"name":"Research Aspects in Agriculture and Veterinary Sciences Vol. 1","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73740481","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}

{"title":"Study on Staphylococcal Species Detected in Digestive Tract of Beavers (Castor fiber) and Their Variability with Properties","authors":"A. Lauková, J. Ščerbová, A. Kandričáková, R. Miltko, G. Bełżecki, M. Simonová","doi":"10.9734/BPI/RAAVS/V1/3229F","DOIUrl":"https://doi.org/10.9734/BPI/RAAVS/V1/3229F","url":null,"abstract":"Objective: Staphylococci from beaver`s gut  (Castor fiber) were analyzed as a contribution in the basic microbiology as well as in the part of beaver`s microbiome study. \u0000Methodology: Free-living beavers (12), both male and female (aged 4-5 years) were caught with a net in north-east part of Poland Wojewodztwo (Provincie) Podlaskie Gmina-Wizajny, GPS:22o 52E:54o22N and placed in wire cages. Sampling was provided in Poland. Sampling of jejunum (12), colon (12) and caecum (6) was followed the ethic rules for animal handling. \u0000Results: Staphylococci detected in jejunum reached amount 2.73 ± 1.16 cfu/g (log 10) on average;  their counts in caecum reached 1.87 ± 0.37 cfu/g on average and in colon 2.89 ± 1.70 cfu/g. After score evaluation using MALDI-TOF mass spectrometry, a high variability in staphylococcal species distribution in beaver`s gut was found; in total, including 18 identified strains, nine species were detected belonging into five clusters; the strains were allotted in the coagulase-negative staphylococcal species. The most frequently detected species were S. hominis and S. haemolyticus (five strains for each). The other species included two strains-S. epidermidis and S. lentus, S. pasteuri, S. cohnii, S. vitulinus, S. warneri, S. xylosus, one strain for each one species. Fifteen strains were deoxyribonuclease and almost haemolysis negative. Ten strains (not depending on the species) showed low-grade biofilm ability formation. Most of  strains were methicillin susceptible with high production of lactic acid. \u0000Conclusion: The study is original contribution in staphylococcal microbiome of beavers and gives opportunity in more detail study of individual strain species.","PeriodicalId":21101,"journal":{"name":"Research Aspects in Agriculture and Veterinary Sciences Vol. 1","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81863904","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}

{"title":"Feasibility of Artificial Insemination Network for Egyptian Buffalo Development: A Literature Reviews","authors":"I. Soliman, A. Mashhour","doi":"10.6000/1927-520X.2019.08.01.2","DOIUrl":"https://doi.org/10.6000/1927-520X.2019.08.01.2","url":null,"abstract":"Literature reviews confirmed that Egypt has a comparative advantage in milk production rather than red meat production, particularly from buffalo. Furthermore, water resources are becoming increasingly scarce, limiting horizontal expansion in fodder acreage. Furthermore, there is fierce competition between food and feed demand on available agricultural land resources. As a result, horizontal expansion in dairy buffalo stock would be impossible. As a result, the only option for buffalo development in Egypt is vertical expansion through increased milk yield to meet the current deficit in domestic milk production. The Egyptian consumer prefers buffalo milk for its color taste and high content of total solids, particularly fat. Buffalo milk is more expensive than cow milk, and its production is increasing faster than cow milk production. The proposed genetic improvement of buffalo milk yield is being accelerated using an artificial insemination (AI) network. A recent study [1], provided evidence that the return of genetic investment in dairy buffalo would be feasible, (IRR = 19.71%)  However, according to official statistics, Egypt has only two AI-centers for buffalo selected buffalo sires, serving four AI-units. As a result, the goal of this study was to assess the feasibility of establishing an AI-network in Egypt by estimating (NPV, IRR, and payback period) and its sensitivity to unfavorable changes that the proposed program may face. The study used a field survey data collected from an AI-unit of the buffaloes’ semen and an AI-Center for raising buffalo sires in Nile Delta. The findings showed that, while the Egyptian economy's average discount rate was 17.5 %, the estimated IRR for one AI-unit was around 35 % under the most likely scenario. A 10% decrease in semen price and a 10% increase in insemination costs would result in IRRs of approximately 28% and 31%, respectively. Under the most likely conditions, the estimated IRR for the AI-center was around 31%. 10% Decrease in Semen Price, and 10% increase in feed costs or in Sire’s price would result in 26%, 30% or 28% respectively. The lowest sale price of semen dose is thus the most effective variable on the IRR. Unfavorable changes, on the other hand, would keep investments with high incentives in establishing a feasible AI-Network for rapidly increasing the dairy buffalo milk yield.","PeriodicalId":21101,"journal":{"name":"Research Aspects in Agriculture and Veterinary Sciences Vol. 1","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76653383","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}