Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2019 ( 2 )

2018 ( 4 )

2017 ( 5 )

2016 ( 11 )

Custom range...

Search Results: 1 - 10 of 1016 matches for " swine. "
All listed articles are free for downloading (OA Articles)
Page 1 /1016
Display every page Item
Brotes epizoóticos de triquinosis en dos criadores de cerdos de la Región Metropolitana, Chile.
Schenone,Hugo; Burgos,Marisol; Ulloa,Marcelo; Acu?a,Pedro; Ojeda,Julio; Silva,José Rolando; Ibá?ez,Oscar; Schenone,Hugo;
Boletín chileno de parasitología , 1999, DOI: 10.4067/S0365-94021999000300014
Abstract: in chile swine trichinosis has presented a progressive decreasing in the last two decades of xx century. t. spiralis pig infection descended from an average of 0.683 per 1000 in 1980-1984 to 0.315 in 1985-1989 andto 0.115 in 1990-1996. in the particular case of metropolitan region this decreasing has been more marked: from an average of 0.058 per 1000 in 1990-1994to 0.003 in 1995-1999. between the end of june 1999 and middle january 2000 in metropolitanregion abattoirs t. spiralis was detected in 15 (4.9%) out of 306 swine from two pigsties located in el monte (e.m.) and padre hurtado (p.h.) 45 and 30 km south-west from santiago. in the same period another four pigs from the same premises were found infected in abattoirs of other regions. during inspection visits it was stated that both pig farms had deficient sanitary conditions. phototrichinoscopy was positive in three out of five rattus norvegicus collected in e.m. in pigsty ph the examination of diaphragm samples of 25 dogs and 17 cats resulted negative. in the premises originating t. spirali infected swine the metropolitan environmetal health service abattoirs progam carries out an epidemiological vigilance consisting in the follow-up of animls destined for slaughteringin order to initiate prophylactic actions oriented to eliminate eventual sources of trichinosis infection for human and rearing pigs
Treatment of Swine Slurry by an Ozone Treatment System to Reduce Odor  [PDF]
A. R. Omer, Paul M. Walker
Journal of Environmental Protection (JEP) , 2011, DOI: 10.4236/jep.2011.27098
Abstract: Development of a technology that can reduce the odor of liquid swine manure during agitation and land application could prove beneficial to the swine industry. The purpose of this study was to evaluate a commercial ozone treatment system for swine slurry under production scale conditions. The facility used for this study was a curtain sided finishing building housing 500 grow–finish market hogs located over a manure pit measuring 12.2 m wide × 25.9 m long × 2.4 m deep with a total pit capacity of 770,142 l, containing 577,607 l. The system evaluated exposes air to ultra-violet light creating O3. The O3 is then injected into slurry at a rate of 851.6 l/min. treating 51,097 l/h. In this study the entire pit contents were treated every 11.3 h. At 0, 24, 48, and 96 h two slurry samples were collected with a 3.05 m probe and six air sample bags were collected via a vacuum pump. No significant differences were detected in slurry samples between time periods. Mean slurry values were 13.6 ± 4.6% solids dry wt., 850 ± 70 mg/l settable solids, 54,200 ± 4384 mg/l total suspended solids, 61,050 ± 12,657 mg/l chemical oxygen demand, 0.86 ± 0.14%N, 0.49 ± 0.27%P, 0.45 ± 0.01%K and dissolved oxygen below detection limits. Ammonia concentrations decreased (P = 0.004) from 0 to 96 h. Odor panelists analyzed air samples for intensity at recognition (IR), offensiveness at recognition (OR), intensity at full strength (IFS) and offensiveness at full strength (OFS). Panelists found OR, IFS and OFS were reduced (P < 0.01) at 48 h and 96 h compared to 0 h and IR was reduced (P < 0.04) at 24 h and 48 h and not at 96 h but trended lower (P = 0.12) at 96 h. The system evaluated significantly improved air quality within the building suggesting that odor emanating from swine buildings and odor generated during land application of slurry should be reduced.
Influencia do período de coleta sobre o volume, motilidade e doses de sêmen em suínos
Castro, Martha Lopes Schuch de;Deschamps, Jo?o Carlos;Meinke, Werner;Siewedt, Frank;Cardelino, Ricardo Alberto;
Ciência Rural , 1996, DOI: 10.1590/S0103-84781996000300020
Abstract: the aim of this experiment was to determine the influence of the collection period on volume (vol), motility (mot) and semen doses (do), and the correlation among the six variables and their repeatibilities. semen samples from ninety (96) boars belonging to landrace (41), large white (31) and duroc (24) breeds were analyzed, taken into account the permanence period (1981 to 1987) of the boars at the artificial insemination center -estrela - rs. the number of semen samples collected were: landrace 7,264, large white 3,589 and duroc, 3,051. year and month of collection had influence (p<0.01) on the variables analyzed. minimum and maximum average values, within each breed, were vol 236.9 and 300.4ml (landrace), 238.1 and 284.1ml (large white) and 150.0 and 201.1ml (duroc): mot 79.2 and 80.3% (landrace), 76.7 and 78.0% (large white) and 77.8 and 79.1% (duroc); do 12.0 and 14.7 (landrace), 10.1 and 13.0 (large white) and 9.1 and 11.9 (duroc), respectively. correlations between vol and do were 0.30 (landrace), 0.36 (large white) and 0.36 (duroc). correlations between vol and mot were close to zero (landrace -0.05, large white 0.03 and duroc 0.01), and between mot and do were 0.08 (landrace), 0.15 (large white) and 0.13 (duroc). repeatibilities were vol 0.49 (landrace), 0.59 (large white) and 0.54 (duroc); mot 0.18 (landrace), 0.27 (large white) and 0.21 (duroc), and do 0.30 (landrace), 0.27 (large white) and 0.39 (duroc).
Linfadenites tuberculóides em suínos abatidos no Estado de S?o Paulo, Brasil: aspectos macroscópicos histopatológicos e pesquisa de micobactérias
Balian,Simone C.; Ribeiro,Pedro; Vasconcellos,Silvio A.; Pinheiro,S?nia R.; Ferreira Neto,José S.; Guerra,José L.; Xavier,José G.; Morais,Zenaide M.; Telles,Maria A. S.;
Revista de Saúde Pública , 1997, DOI: 10.1590/S0034-89101997000400008
Abstract: introduction: as the occurrence of tuberculosis lymphadenitis in swine constitutes a public health risk, especially in immunosuppressed individuals, the distribution of tuberculoid lesions and the presence of micobacteria in lymphonodes and hepatic and muscular tissue in swine for slaughter, in the state of s. paulo, sp (brazil), in the period from 1993 to 1994, were studied. material e método: tuberculous lesions in 60 carcasses of swine, slaughtered at abattoirs during the period 1993-1994, were studied. when macroscopic lesions were observed, a representative sampling of lymphnodes, hepatic and muscular tissues (masseter and diaphragm) were examined using histophatological and micobacterial isolation techniques. results: the macroscopic lesions were found predominantly in mesenteric lymphnodes. the mai complex (m.avium-intracellulare) was isolated mainly in the carcass group that showed lesions and was not found in the control group. microorganisms of the mai complex were not isolated from hepatic and muscular tissues. conclusion: no clear relationship between the type of mycobacteria isolated and the macroscopic lesions observed during the carcass inspection was found.
“Swine flu”: when thinking globally and acting locally is more than just a slogan
Caterina Mammina
Iranian Journal of Microbiology , 2009,
What every Hepatologist should Know about Swine Flu?
Kamran Bagheri Lankarani
Hepatitis Monthly , 2009,
Abstract: As world is witnessing ever fastest growing pandemic, physicians with various specialties should adopt themselves to the new situation (1). Global death toll of swine flu by November 15, 2009, has raised to 6750. Many of those who died or were hospitalized suffered from comorbid conditions which increased either the severity or the risk of acquiring the disease (2). Swine flu may change the course of many chronic diseases. Thus, all physicians in different disciplines should realize and consider the impact of the current pandemic on their daily practice.As the new pandemic flu virus 2009 (H1N1) has been circulating only in the past nine months, there is still not much evidence on the interaction of this pandemic with chronic diseases. However, presumably, much of this interaction is expected to be similar to other circulating influenza type A viruses. But there are clear differences with the current pandemic , for example, near one-third of severe cases had no underlying conditions and their median age was much lower than the usual seasonal flu (3).Hepatologists caring for both acute and chronic liver diseases anywhere in the world would probably see much about this interaction in upcoming months and even years. In this review, we tried to somehow classify our current knowledge on possible interactions between swine flu and various liver diseases. Much of the described effects are from the older evidence mostly related to influenza type A, and as was mentioned before, with expansion of the current pandemic and growing our knowledge about the nature of this new virus, these suggestions might be changed later on.Liver damage by flu virus.Liver damage with influenza virus has been shown in animal models. Indeed, the mouse/influenza B virus is a well-established model for Reye's syndrome with a histological picture resembling human disease including microvesicular steatosis and minimal inflammation (4). The primary infected cells in these animals are hepatocytes with minimal infection of the Kuppfer cells (5). The liver parenchyma infection in mouse model is abortive or non-permissive characterized by the absence of viral replication in the liver and brain and absence of complete viral particles on electron microscopy, despite the presence of viral antigens within the hepatocytes and minimal inflammation in biopsied specimens (6).At least, in animal models the liver damage could be seen even in the absence of virus isolation from the liver. Circulating cytokines and chemokines may contribute to liver damage. Derangement of lipid metabolism secondary to depre
Tihomir Florijan?i?,Damir Rimac,Boris Antunovi?,Albert Marinculi?
Poljoprivreda (Osijek) , 2003,
Abstract: Animal husbandry in Eastern Croatia, especially concerning family husbandries, is well known for its traditional way of swine breeding and processing meat and its products. Higher frequent occurrence of trichinellosis in swine during last decade has resulted in increased number of people reported to be infected. Beside human health, this disease directly threatens swine breeding, as well. If only one animal is found to be trichinellotic, it is necessary to remove harmlessly all the other swine from the same production group. This makes huge economical losses, both for the owner and country itself. Systematic monitoring and persistent practicing of by low regulated trichinellosis eradication and preventive measures during the last three years has significantly reduced number of infected swine, which directly reduced harmful effects on swine breeding and selection.
Meat quality in “in door” and “out door” production systems of poultry and swine  [PDF]
Wagner A. G. Araújo, Luiz F. T. Albino, Nilva K. Sakomura, Pedro V. R. Paulino, Anastacia M. Campos
Open Journal of Animal Sciences (OJAS) , 2011, DOI: 10.4236/ojas.2011.13010
Abstract: The meat quality can be influenced by many interacting factors before and after the slaughter. Currently more sustainable production systems are targeted in general, whether or not they have any effect on meat quality. The sustainability is a condition of agroecology and necessarily im- plies on the animal and plant association and succession. A condition for sustainability is to minimize or even eliminate the use of inputs from processes of chemical synthesis. In the case of pigs and poultry, this is feasible by adopting production systems that allows nutria- ents recycle directly on the soil at levels that do not involve pollution. Although we have the understanding that the general principles of sustainability to be observed are universal, the solution is not simple. For each situation a vi- able alternative must be sought, depending on the social, economic, ecological and cultural realities. In tropical and subtropical climates the production of pigs and poultry outdoors can be an appropriate option. This also leads to nutria- ents recycle and promotes a better energy bal- ance of the system. Among the alternatives that can be taken to introduce differentiating factors in meat production as food is the type of pro- duction system, due to its direct impact on the meat quality. These systems have a direct in- fluence through the consumed food, by the conditions of animal wellbeing, physical activity and the environment provided. The performance and meat quality depend on the interaction of genotypes, rearing conditions, pre-slaughter handling and processing of the meat and the carcass. The influence of the rearing system on the animal performance, on the carcass and finally on the meat is the result of the interactive effects among facilities, feeding level and ge-notype used in the production systems. The production of poultry and pigs more extensively tend to get a final product with its own or- ga-noleptic characteristics, changing the meat de-fault color and content, place of fat deposi- tion and the fatty acid profile deposited on the carcass.
Swine waste as a source of natural products: A carotenoid antioxidant  [PDF]
Lawrence B. Cahoon, Christopher J. Halkides, Bongkeun Song, C. Michael Williams, George R. Dubay, Alexandra Fries, Johanna Farmer, William Fridrich, Charles Brookshire
Agricultural Sciences (AS) , 2012, DOI: 10.4236/as.2012.36098
Abstract: Development of Environmentally Superior Technologies swine waste management has focused on extraction of products with relatively low unit values. Analyses of the bacterial composition of swine waste lagoon samples confirmed the presence of several purple non-sulfur bacteria (PNSB) species known to produce a variety of carotenoids. We examined a carotenoid naturally abundant in North Carolina swine waste lagoons dominated by PNSB. Analytical methods including high performance liquid chromatography (HPLC), mass spectrometry, and nuclear magnetic resonance (NMR) confirmed the identity of the dominant carotenoid as spirilloxanthin, C42H60O2, with 13 conjugated double bonds. This structure confers antioxidant properties as good as those of carotenoids currently marketed as antioxidants. Visual estimates of the “redness” of swine waste lagoon liquids were highly correlated with carotenoid content. Spirilloxanthin concentrations in a lagoon with a strong PNSB bloom were approximately 0.5 grams·m-3. These results support further investigations into the potential for extracting commercially valuable natural products from swine waste lagoons.
Comparison of African Swine Fever Virus Prevalence in Nigerian Indigenous Pig, Its Hybrid and Backcross in an Environment Prone to African Swine Fever  [PDF]
O. O. Oluwole, G. O. Omitogun, M. O. Oladele-Bukola, B. A. Boladuro
American Journal of Molecular Biology (AJMB) , 2016, DOI: 10.4236/ajmb.2016.61006
Abstract: This work investigated on the presence of African swine fever virus (ASFV) in Nigerian Indigenous pig (NIP), its hybrid and backcross using Polymerase chain reaction (PCR) screening method on the extracted DNA and haematological screening from these pig bloods. Pig populations selected from Southwestern Nigeria were used for this study. ASFV infected blood samples collected from the University of Ibadan were used as positive control. White blood cell count was significantly highest in hybrid (31.27 ± 1.79 × 103/μl) and higher in backcross (27.71 ± 2.01 × 103/μl) compared with NIP (18.16 ± 3.01 × 103/μl) for NIP, and while Lymphocyte count was found to be highest in hybrid (86.17% ± 1.95%) and lowest in backcross (56.23% ± 1.17%). The PAS primers (PAS1F: 5’-ATG GAT ACC GAG GGA ATA GC-3’ and PAS2R: 5’-CTT ACC GAT GAA AAT GAT AC-3’) amplified the 278 bp of ASFV in the DNA extracted from NIP, its hybrids and backcross. In conclusion, this study has shown that NIP, its hybrid and backcross have ASFV in their genome in an ASF-prone environment and thus confirming the continuous prevalence of ASF in Southwest Nigeria. This is an on-going research where the severity and virulence of the virus has to be measured.
Page 1 /1016
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.