617 research outputs found
A genealogical survey on the main bloodline of the Australian Cattle Dog in Italy
This paper presents the results of genetic variability analyses using genealogical data on the main genetic bloodline of the Australian Cattle Dog in Italy, a line that has had a significant impact on the development of the breed. All the genealogical data on the progeny and ancestors of one of the first stallions introduced in Italy were considered, i.e. Cattlefarm's Comeback Jack born on 1/2/1997 in Finland. Animals from the bloodline born between 1962 and 2019 were considered. A total number of 1722 animals were found to be from the line which represents the entire population (WP), including the basic population (BP) and the reference population (RP) defined as the animals currently living. A total of 982 animals were in the RP, with the oldest living dogs born in 2004. A total of 854 dogs were inbred. The average inbreeding coefficient (F) in the RP was 5.1%, while the average inbreeding of the inbred animals was 5.8%. The F was < 0.10 in 711 dogs (77.3% of inbred), and > 0.20 in only 36 dogs (3.91% of inbred). Fifteen traced generations were highlighted. A maximum average inbreeding value (6.45%) was observed in the dogs with 11 traced generations. This research highlighted the good genetic variability of this Australian Cattle Dog bloodline thanks to the efficient management of the breeders who in the past introduced some stallions from abroad. Currently, the lines in Italy are not sufficiently high to prevent inbreeding in the new matings, which is becoming frequent. It is, therefore, important to continue to import new stallions for reproduction to expand the genetic variability. However, at the same time, the old lines need to be preserved genetically, aptitudinally and morphologically, as they are an important heritage of the breed in Italy
Larvicidal and pupicidal activity of neem oil (Azadirachta indica) formulation against mosquitoes Aedes albopictus (Skuse, 1894) (Diptera: Culicidae)
The control against mosquitoes should be specifically directed at the larvae. Combating the adults is temporary, ineffective and polluting the environment, while larval treatment is more localised in time and space and is thus less dangerous. The aim of our work is to evaluate the insecticidal activity under laboratory conditions of a new natural anti-mosquito formulation (neem oil, a.i azadirachtin A 0.3%) against Aedes albopictus. The neem oil (azadirachtin A 0.3%) was tested in water at different dosages: 5 mg; 10 mg; 25 mg; 50 mg and 75 mg on larvae at the stages L1-L2, L3-L4 and pupae. Four replicas were conducted. The LD50 and LD90 levels were 14 mg (95%; CI = 5-19 mg) and 70 mg (95%; CI = 27.9-98.1 mg), respectively, for the larvae at the stages L1-L2 and 20 mg (95%; CI = 4.4-24.4 mg) and 30 mg (95%; CI = 3.6-50.4 mg), respectively, for the larvae at the stages L3-L4. Regarding the treatment at the pupal stage, after the first 24h, there is a higher mortality rate compared to the control, showing its effectiveness as pupicidĐ”
Species diversity of soil mites (Acari: Mesostigmata) under different agricultural land use types
Mites are among the most important members of soil arthropod communities, because they are the most diverse in terms of ecological niche and behavior. Due to the sensitivity of soil mites to soil disturbance, their diversity and numbers can be used as ecological indices for assessing disturbances in ecosystems. To determine the effect of land use type on soil mite biodiversity, abundance and biodiversity indices of soil inhabiting mesostigmatic mites were evaluated at eight sites in Saman and Shahrekord, Iran, each site including two adjacent agricultural pieces of land: an orchard and a crop field. The biodiversity of mites was measured by several biodiversity indices and then compared by analysis of variance. The specimens collected belonged to 12 families, 17 genera and 24 species. The biodiversity index values calculated in different months showed that these indices were usually higher in warm months and in orchards than in cold months and crop fields. In the examined crop fields, the diversity index values were lower after harvesting, probably due to soil disturbance by agricultural machinery. There was a significant difference in the Shannon-Wiener's diversity index among different land uses. The maximum and minimum values of this index were recorded at the vine orchard (1.48) and wheat field (0.15) in an elm/wheat site at Shahrekord, respectively. The soil organic matter content was maximum in the vineyard (2.12%) and minimum in the wheat field (0.41%)
Intestinal helminths of red foxes (Vulpes vulpes) in north-west Italy
SummaryA total of 180 foxes (Vulpes vulpes) from an area scarcely investigated of north-west Italy, were examined for intestinal helminths using sedimentation and counting technique (SCT). Faecal samples were submitted to centrifugation with 50 % zinc sulphate used as flotation solution.No fox was found completely negative for intestinal helminths. The most frequently identified nematodes were Uncinaria stenocephala (70.0 %), Molineus legerae (27.2 %), Toxocara canis (26.7 %), Toxascaris leonina (25.6 %), Trichuris vulpis (21.1 %), Aonchotheca putorii (8.9 %), Pterygodermatites affinis (5.6 %). Genus Mesocestoides (81.7 %), family Dilepididae (29.4 %) and Taenia spp. (8.3 %) were the most prevalent cestodes. All foxes were negative for E. multilocularis and E. granulosus. In two foxes trematodes belonging to the family Plagiorchidae were found.The study highlighted that foxes are hosts of intestinal helminths of veterinary and medical importance which may be transmitted to dogs and humans
Taeniid cestodes in a wolf pack living in a highly anthropic hilly agro-ecosystem
The Italian wolf population in human-modified landscapes has increased greatly in the last few decades. Anthropisation increases the risk of transmission of many zoonotic infections and in this context, control of taeniid cestode species needs to be addressed from a One Health perspective. Predator-prey interactions are at the root of taeniid cestode transmission, and the wolf plays a key role in the maintenance and transmission of taeniids. To date, all available data on the taeniids of wolves in Italy refer to populations living in a wild habitat. Between 2018 and 2019, we investigated taeniids in a wolf pack living in a highly anthropic hilly agro-ecosystem. Thirty-eight faecal samples were collected and analysed, 4 of which were also genetically characterised for individual wolves and belonged to three different animals. Samples collected were analysed microscopically and by molecular analysis in order to identify the taeniid species. Taeniid eggs were detected in 34.2% (13/38) of samples. Within samples positive to taeniid eggs only Echinococcus granulosus s.s. and Taenia hydatigena were identified in 26.3% and 10.5% of the samples, respectively. On microscopic examination, Capillaria spp., Ancylostomatidae and Toxocara canis eggs, Crenosoma vulpis larvae, and coccidian oocysts were also found. The combination of low biodiversity of taeniid species with a high occurrence of E. granulosus s.s. recorded in this study could be the consequence of a deeper link occurring between wolves and livestock in human-modified landscapes than in wild settings
Mejora del olmo para resistencia a DED: clones italianos y caracterĂsticas de su madera
In Italy, an elm breeding program to develop Dutch elm disease-resistant trees has been established by cross-breeding Asian elms with indigenous species, in order to produce individuals that combine resistance of the first with growth characteristics and higher degree of environmental adaptability of the second. Thus, the favourable adaptation of Ulmus pumila in Italy has been explored: «San Zanobi» and «Plinio» are two recent results of this research and many others promising clones as «FL090», «FL146», «FL441», «FL568», «FL634», are in the final stage of field testing. The resistance levels of all these clones were significantly higher level of resistance than «Lobel» and «Urban» in several assessments during different years. First technological tests indicate that the wood characteristics of «San Zanobi» and «FL090» clones are comparable to those of elm wood traditionally present on the market, thus highlighting that those clones is likely to satisfy the elm wood demand. The present characterisation needs to be confirmed by further evaluations of mature trees having bigger diameters and allowing industrial trials, still not available so far.En Italia, el programa de mejora genética del olmo para la obtención de árboles resistentes a la grafiosis se ha desarrollado a partir del cruzamiento de olmos asiáticos con especies nativas, y tiene por objetivo producir individuos que combinen la resistencia de los primeros con las características vegetativas y el alto grado de adaptación al ambiente de los segundos. Por esta razón, se ha aprovechado la favorable adaptación de Ulmus pumila en Italia: «San Zenobi» y «Plinio » son dos resultados recientes de estas investigaciones, y otros muchos clones prometedores como «FL090», «FL146», «FL441», «FL568» y «FL634» están en las fases finales de las pruebas de campo. Los niveles de resistencia de todos estos clones fueron significativamente mayores, en diferentes ensayos, que los niveles de resistencia de «Lobel» y «Urban ». Los primeros ensayos tecnológicos han mostrado que las características de la madera de los clones «San Zenobi» y «FL090» son comparables a los de las maderas de olmo tradicionalmente presentes en el mercado, indicando que esos clones pueden probablemente satisfacer las demandas de madera. La actual caracterización debe ser confirmada con nuevas evaluaciones en árboles maduros de mayores diámetros y mediante ensayos industriales aún no disponibles
Anisakid and Raphidascaridid parasites in Trachurus trachurus: infection drivers and possible effects on the hostâs condition
This study investigated the distribution of nematode larvae of Anisakidae and Raphidascarididae (genera Anisakis and Hysterothylacium) in Trachurus trachurus (Linnaeus, 1758) in the Ligurian and central-northern Tyrrhenian Seas. The relationship between the number of parasites and the length and weight parameters of the fish was assessed, and the possible effect of the parasites on the condition factor was evaluated. A total of 190 T. trachurus specimens were collected in July 2019. Parasites were found in 70 individuals. A total of 161 visible larvae were collected in the viscera. Morphological analysis revealed the presence of Anisakis spp. in 55 fish and Hysterothylacium spp. in 15 fish, while 5 fish showed coinfection with both genera. The specimens subjected to PCR (n = 67) showed that 85% of the Anisakis larvae analyzed belonged to the species A. pegreffii, while the remaining 15% belonged to hybrids of A. pegreffii-A. simplex (s.s.). A total of 58% (n = 7) of the Hysterothylacium larvae analyzed belonged to the species H. fabri, while 42% belonged to the species H. aduncum. Our results support the hypothesis that infection with these parasites does not affect the condition of the fish host analyzed, and that body size and depth are major drivers in determining infection levels with Anisakid and Raphidascaridid nematodes
EFFECTS OF DIETARY LINSEED AND SYNTHETIC OR NATURAL ANTIOXIDANTS ON SHELF-LIFE OF PORK
The effects of including extruded linseed in pig diets supplemented with either polyphenol-rich red grape skin extract (3 g kg(-1)) or synthetic antioxidants (200 mg kg(-1) alpha-tocopheryl acetate plus 0.21 mg kg(-1) of selenium) on shelf-life of pork stored in modified atmosphere packaging (MAP) at different oxygen concentrations (0 and 70%) were evaluated. Linseed reduced n-6/n-3 fatty acid ratio in lipids of backfat and loin. Color parameters, pH, weight losse, oxidative stability (TBARS), did not differ between antioxidants neither in raw, nor in cooked, nor in stored muscle. High oxygen concentration in MAP increased TBARS and Delta E, yielding redder meat
The Italian registry of aggressive rheumatoid arthritis -- the GIARA project.
Objective. In 1999, the Italian Society of Rheumatology started a project to determine the prevalence and clinical characteristics of aggressive rheumatoid arthritis (ARA). Methods. For I year, all patients with RA for 2 to 2 to 1.5, female sex, and RF positivity. Conditions other than RA were recorded in about 50% of the patients, and only 30%-40% were taking disease modifying antirheumatic drugs. Conclusion. In an Italian RA population, the GIARA (Gruppo Italiano Artrite Reumatoide Aggressiva) criteria for ARA were met by 15% of the patients with disease duration of 2 years, but erosions were seen in 35%. Upon referral, most of the RA patients were inadequately treated and had other conditions
Xâray Tomography Unveils the Construction Technique of UnâMontuâs Egyptian Coffin (Early 26th Dynasty)
The Bologna Archaeological Museum, in cooperation with prestigious Italian universities, institutions, and independent scholars, recently began a vast investigation programme on a group of Egyptian coffins of Theban provenance dating to the first millennium BC, primarily the 25thâ26th Dynasty (c. 746â525 BC). Herein, we present the results of the multidisciplinary investigation car-ried out on one of these coffins before its restoration intervention: the anthropoid wooden coffin of UnâMontu (Inv. MCABo EG1960). The integration of radiocarbon dating, wood species identifica-tion, and CT imaging enabled a deep understanding of the coffinâs wooden structure. In particular, we discuss the results of the tomographic investigation performed in situ. The use of a transportable Xâray facility largely reduced the risks associated with the transfer of the large object (1.80 cm tall) out of the museum without compromising image quality. Thanks to the 3D tomographic imaging, the coffin revealed the secrets of its construction technique, from the rational use of wood to the employment of canvas (incamottatura), from the use of dowels to the assembly procedure
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