Search results for " SOM"
showing 10 items of 346 documents
Citrus biotechnology
2020
Agricultural crops that can better withstand the changing climatic and pathogen landscape have been produced through natural selection throughout the millennia and, in recent years, through the process of human-assisted plant breeding and selection. However, a lack of genetic diversity in many commercially cultivated crops (due to monoculture) has made them more vulnerable to biotic and abiotic stresses (Esquinas-Alcazar, 2005; Keneni et al., 2012). Citrus, belonging to the Rutaceae family, is one of the most important commercial woody fruit crops in the tropical and subtropical areas of the world. The origin of citrus is traced back to parts of tropical and subtropical Southeast Asia (Wu e…
Cellule somatiche in latte ovino: analisi e applicazione delle curve ROC
2013
Negli ovini da latte le mastiti costituiscono una delle principali cause di perdite economiche per la ridotta produzione e soprattutto per la scarsa qualità tecnologica del latte. Diversi studi hanno dimostrato che il contenuto in cellule somatiche (SCC) del latte può essere impiegato sia come metodo diagnostico sia come criterio di selezione nei programmi di miglioramento genetico per la resistenza alle mastiti. Obiettivo di questo lavoro è stato applicare la metodologia delle Receiver Operating Characteristics curves (ROC) per valutare la capacità diagnostica del SCC nel discriminare le mammelle infette da quelle sane e per individuare un valore soglia discriminante in ovini da latte. In …
Weighted Single-Step Genome-Wide Association Study Uncovers Known and Novel Candidate Genomic Regions for Milk Production Traits and Somatic Cell Sco…
2022
The objective of this study was to uncover genomic regions explaining a substantial proportion of the genetic variance in milk production traits and somatic cell score in a Valle del Belice dairy sheep. Weighted single-step genome-wide association studies (WssGWAS) were conducted for milk yield (MY), fat yield (FY), fat percentage (FAT%), protein yield (PY), protein percentage (PROT%), and somatic cell score (SCS). In addition, our aim was also to identify candidate genes within genomic regions that explained the highest proportions of genetic variance. Overall, the full pedigree consists of 5534 animals, of which 1813 ewes had milk data (15,008 records), and 481 ewes were genotyped with a …
Cellule somatiche ed isolamento di agenti mastidogeni in ovini di razza Valle del Belice
2013
Il conteggio delle cellule somatiche nel latte ovino si è dimostrato un valido strumento per la determinazione dello stato sanitario della mammella. Oggetto del presente studio è stato valutare eventuali relazioni fra il contenuto in cellule somatiche (SCC) e le infezioni mammarie (IMI) negli ovini. L’indagine è stata condotta nel periodo 2006-2012 su n.14072 campioni di latte individuale. In base al tenore i campioni sono state inseriti in 4 classi: 300.000; da 301.000 a 500.000; da 501.000 a 1.000.000 e ≥1.001.000 cellule/ml. Per l’isolamento colturale sono stati seminati 10 μl di latte su piastre di Agar Sangue incubate per 24-48 h a 37 °C in aerofilia e, se necessario, in microaerof…
Ricerche tassonomiche sulle Capparaceae della Somalia: una nuova combinazione nel genere Boscia Lam.
1991
Lo studio dei tipi di Boscia tomentella Chiov. e Maerua mazzocchii (Chiov.) Chiov. ha dimostrato che si tratta di taxa conspecifici, correttamente inquadrabili nel genere Boscia. Sulla base delle regole nomenclaturali, viene quindi istituita la nuova combinazione Boscia mazzocchii (Chiov.) Fici et Kers, comb. nov.
The role of herbaria for taxonomic and distributional studies in Characeae: examples from the Herbarium Mediterraneum Panormitanum (PAL) and the Flor…
2018
Characeae is a taxonomically critical family. Taxonomical uncertainties inevitably affect its distributional data. The role of herbarium specimens, particularly types and original material, is crucial for unravelling taxonomical ‘knots’. Moreover, wet areas have undergone dramatic reduction and modification in the last century and historical herbarium specimens may represent basic documents for the reconstruction of former distributions. Some preliminary data from two different Italian Herbaria are here presented. The Herbarium Mediterraneum Panormitanum (PAL, the standard acronym according to the Index herbariorum, http://sweetgum.nybg.org/ ih) houses four folders of Characeae exsiccata. T…
RIPRISTINO DEI FONDALI DEGRADATI E RECUPERO DEL PAESAGGIO SOMMERSO NELL’AREA MEDITERRANEA
Effects of fish farming waste to sedimentary and particulate organic matter in a southern Mediterranean area (Gulf of Castellammare, Sicily): a multi…
2004
Abstract Carbon and nitrogen stable isotope analysis was used to investigate the dispersion area of waste material coming from fish farming activities in the western Mediterranean. Tests were conducted to see if uneaten feed and faecal material isotopic signals, originating from fish farms, could be detected in particulate organic matter (POM) and sedimentary organic matter (SOM). The detectable dispersion distance (from under cages as far as 1000 m) of cage-derived organic material was also examined. To do this, carbon (δ13C) and nitrogen (δ15N) composition in POM and SOM collected around the cages, in some control areas and in the waste material, was measured. Mean POM δ13C was −22.9±0.2‰…
The use and beauty of ultra-high-resolution seismic reflection imaging in Late Quaternary marine volcaniclastic settings, Napoli Bay, Italy
2019
A Nápolyi-öbölben felvett ultra nagy felbontású egycsatornás (IKB-Seistec™) reflexiós szeizmikus szelvények korábbi geológiai és geofizikai vizsgálatok eredményeivel együtt kivételes, eddig soha nem látott felbontású szeizmikus leképezését nyújtják a Flegrei-mezők és a Somma-Vezúv felszín alá süllyedt késő-pleisztocén–holocén rétegtani felépí - tésének. A szeizmikus szelvényeken látott geometria és gravitációs magvevővel nyert üledékek adatainak összevetéséből Campania partközeli kontinentális talapzatán számos olyan üledékes és vulkáni szerkezet, valamint hidrotermális jelenség került leképezésre, melyek a legutolsó glaciális maximum (kb. 18 000 év) óta keletkeztek. A Pozzuoli-öbölben mért…
Pre-Eruptive Conditions of La Sommata Basalt (Vulcano, Aeolian Islands): Constraints from Experimental Petrology.
2011
One of the most primitive magma of Aeolian Arc is the basalt erupted (about 50 ka B.P.) by the La Sommata scoria cone at Vulcano; this is a silica-undersaturated (ne-normative) low-phyric (10-20 wt. %), Ca-rich (CaO = 13 wt. %) shoshonitic basalt (K2O = 2.28 wt.%) in which olivine phenocrysts host melt inclusions more primitive than whole rock composition and with an ultra-calcic character: CaO/Al2O3 > 1.4 [Métrich and Clocchiatti, 1996; Gioncada et al., 1998; Schiano et al., 2000]. Phenocrysts mainly include olivines (Fo92) and clinopyroxenes (Fs5). Plagioclase microlites (from An79 to An67) are the most abundant groundmass phase (45 wt. %), together with clinopyroxene (Fs11) and olivine (…