Search results for " Breeding"
showing 10 items of 185 documents
Relationship between beta lactoglobulin and subclinical mastitis in Valle del Belice sheep breed
2010
The objective of the following research was to determine the effect of LGB genotypes on subclinical mastitis in Valle del Belice dairy sheep. Ewes were classified as affected or not by subclinical mastitis within a lactation based on i) a positive culture in one of the test-days and ii) more than 750,000 somatic cells. Generalized linear mixed models were fitted to assess the significance of LGB genotypes on MTB and MTC. The LGB genotypes significantly affected MTB (p=0.0387), and showed a tendency on MTC (p=0.1104). Least square means showed that in the analysis for MTB, individuals with genotypes BB and AB had a higher frequency of subclinical mastitis. Moreover, the least square differen…
Effect of somatic cell count level on functional longevity in Valle del Belice dairy sheep assessed using survival analysis.
2009
The objectives of this study were to evaluate the effect of somatic cell count (SCC) on functional longevity and to estimate the heritability of functional longevity using survival analysis in Valle del Belice dairy sheep. A total of 4,880 lactations of 2,190 ewes from 11 flocks were used. In this study, SCC was considered as an indication of subclinical mastitis. In case of clinical cases, identified by the technicians at milking time, test-day weights and milk samples of those ewes were not considered. Somatic cells were analyzed as counts, without any transformation, and were grouped in 3 classes based on the observed SCC maximum (mxSCC). The mxSCC classes, expressed as 103 cells/mL, wer…
Time-to-event analysis of mastitis at first-lactation in Valle del Belice ewes
2007
A time-to-event study for mastitis at first-lactation in Valle del Belice ewes was conducted, using survival analysis with an animal model. The goals were to evaluate the effect of lambing season and level of milk production on the time from lambing to the day when a ewe experienced a test-day with a recorded SCC greater than or equal to 750,000 cells/ml, and to estimate, for this trait, its heritability and the percentage of variation explained by the flock-year of lambing effect. A dataset with 2468 first-lactation records, collected from 1998 to 2003 in Valle del Belice ewes allocated in 17 flocks, was used. The Cox model used included lambing season and total milk yield adjusted for lac…
New colony of little egrets egretta garzetta at trapani saltpans
2016
Breeding on man made structures has never been cited in literature for this species. First records of breeding in windmill in the saltpans of Trapani are here reported.
Metodologia di valutazione della qualità ambientale: applicazione ad aree umide siciliane
1991
Come valutare e classificare le aree naturali A wetland habitat assessment technique (H.A.T.) has been used to screening 16 wetlands of Sicily. H.A.T. uses breeding birds and wintering Anatidae as indicators of habitat quality. Faunal index values are greater for the natural areas using breeding birds. Faunal index value differences between natural and artificial areas are not so evident using wintering Anatidae.
Pilnasiņu zirgi sacīkstēs un vaislā
1932
Tekstu papildina 20 ilustrācijas un 71 tabula.
Fluorescent pseudomonad injectisomes and manipulation of plant defenses : biocontrol versus pathogenic rhizosphere agents
2015
International audience
Thaxtomin A-induced defense responses in Arabidopsis thaliana cells require an early Ca2+ influx
2008
International audience
Genetic and microscopic study of type III secretion system in Pseudomonas fluorescens
2014
National audience
Regulation of the plasticity of longevity upon drought in Medicago truncatula involves the cryptochrome-interacting bHLH49 transcription factor
2021
International audience