22 research outputs found
Naudanlihantuotantoon vaikuttavista geneettisistÀ tekijöistÀ ja ympÀristötekijöistÀ sekÀ kasvun mittaamisesta kenttÀkokeissa
vokKirjasto Aj-
Repeatability of subjective grading in fur animals I. Grading of live foxes (Vulpes vulpes)
Repeatabilities of subjective grading were studied for colour and body size in silver foxes, and for general appearance in various colour types of the fox. Statistically significant differences between scoring times were found for each trait. However, the judge factor had the greatest effect on scores for colour and body size in silver foxes. There were differences between the mean scores in general appearance given for the various colour types. Colour tended to be easier to judge than body size or general appearance. The coefficients of repeatability were 0.74 for colour, 0.55 for body size and 0.57 for general appearance. The repeatabilities among the various judges were 0.68-0.82 for colour and 0.51-0.59 for body size. Among the various colour types the âsilver typesâ seemed to be easier to judge than the âgolden typesâ. The repeatabilities were 0.57 to 0.59 vs, 0.50 to 0.55 for general appearance
Repeatability of subjective grading in fur animals III. Grading of live blue foxes in different environmental conditions
Association between repeatedly scored body size and fur characteristics were studied in live blue foxes. Gradings in cages and outside cages in lamplight and daylight were also compared. Colour tended to be easier and clarity more difficult to evaluate than the other traits. Differences between judges in accuracy of grading were greater than between various grading environments. The grading was more reliable outside cages than within cages. The most uniform results were obtained when the same judge graded the animals in the same environmental conditions
Ihmiseen luottava kettu voi hyvin
Siniketun ja hopeaketun luottavaisuus ihmistÀ kohtaan on kohtalaisesti periytyvÀ ominaisuus. Siten luottavaisuutta voidaan pysyvÀsti edistÀÀ valinnan avulla. Kettujen luottavaisuuden lisÀÀntyminen nÀyttÀÀ parantavan pentutulosta. PelkkÀ luottavaisuus ei kuitenkaan takaa hyvÀÀ turkislaatua.vo
Selostus nautakarjatalouden jatkokoulutuskurssista : The Management and Breeding of Cattle Edinburgh - Aberdeen 7.-20.5.1978
vKirjasto Aj-
Hopeakettujen luottavaisuuden ja aggressiivisuuden perinnölliset tunnus-luvut ja edistymiset luottavaisuuden perusteella valituilla pennuilla ja sii-toselÀimillÀ
ei saatavill
Genetical and environmental factors affecting slaughter traits in beef production experiments in field
vokKirjasto Aj-KLihanaudan teurasominaisuuksiin vaikuttavia perinnöllisiÀ ja ulkoisia tekijöitÀ kenttÀkokeiss
Teurasnaudan kasvukokeet yksityisillÀ tiloilla
Kirjoitus perustuu maataloustutkimuksen pÀivillÀ HelsingissÀ 13.2.1974 pidettyyn esitelmÀÀnvokKirjasto Aj-ktillvÀxtförsök med slaktnöt pÄ privata gÄrda