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Lietuvos juodmargių buliukų kūno matmenų, augimo spartos, skerdenos išeigos ir mėsingumo tarpusavio ryšiai / Lithuanian Black and White breed bulls connexion between body measures, growth speed, carcass output and succulence output and succulenceKučuro, Elicija 16 March 2006 (has links)
The task of research: 1.To analyse and systematic body measures data; 2.to analyse and systematic control slaughter’s data; 3.to count correlation coefficients between different features. Methodology. It was found correlation coefficients between body measures, growth speed, carcass output and succulence. Correlation coefficients were count by using computer program – Excel. And correlation coefficient’s reliability was found by Snedekor. Conclusions: 1.Between separate body measures and growth fastness was determinated some connexion. The biggest correlation coefficients were between body measures and growth fastness in different periods of life r = 0,444 – 0,688 (P< 0,01). 2.The biggest correlation coefficients were determinated between hinder body parts measures and succulence r = 0,493 – 0,694 (P<0,01). 3.Because these high correlation coefficients show the firm belonging between determined features, so to fulfill the selection we need to take it to account. 4.It was noticed, that bulls which were dwars, they had bigger weight in different periods of their growth, instead the lofty ones. 5.The biggest growth fastness for Lithuanian Black and White breed bulls was definited from 12 – 15 months. They distinguished the biggest weight in this period. So, the most effective way to feed up these bulls would be till this period – 12 – 15 months.
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Silosoujamų pašarų kokybės gerinimas, siekiant užtikrinti galvijų sveikatingumą / Silage feed quality improvement in order to maintain the cattle wellnessGrišiūtė, Sandra 05 March 2014 (has links)
Siekiant pagerinti silosuojamų pašarų kokybę ir užtikrinti galvijų sveikatingumą, buvo ištirtas kukurūzų siloso užterštumas, siloso mėginiai paimti iš įvairių Lietuvos vietovių ir įvertintas užterštumas mikroormanizmais ir mikromicetais. Nustatytas mikromicetų jautrumas Vaistinio čiobrelio (Thymus vulgaris), Vaistinio šalavijo (Salvia officinalis) ir Paprastojo raudonėlio ( Origanum vulgare) 100% eteriniams aliejams. Užkonservavus kukurūzų siloso žaliavą laboratorinėmis sąlygomis, po 96 dienų buvo nustatytas eterinių aliejų antigrybinis ir antibakterinis veikimas minėtiems eterininiams aliejams 1:100, 1:200 koncentracijų, Vaistinio čiobrelio ir Vaistinės juozažolės, ekstraktams ir žolelėms. Nustatytos trichotecenų (T–2), deoksinivalenolo (DON), zearalenono (ZON) ir aflatoksino B1 (AFL B1), mikotoksinų koncentracijos Vaistinio čiobrelio, Vaistinės juozažolės, Vaistinio šalavijo ir Paprastojo raudonėlio eterinių aliejų 1:200 koncentracijojose. / In order to assess contamination of corn silage, it´s examples were taken from diffrent locations of Lithuania and established their contamination of microorganisms. Established the sensitivity of fungi for Thyme (Thymus vulgaris), Hyssop (Hyssopus officinalis) ), Salvia (Salvia officinalis), and Oregano (Origanum vulgare), 100% essential oils. In fermented raw corn silage on laboratory conditions after 96 days were established antibacterial and antifungal activity of essential oils in 1:100 and 1:200 concentations, Thyme and Hyssop extraxts and herbs.In mentioned essential ois 1:200 concentrations were established T–2 toksinas, deoxynivalenol ( DON) , zearalenone ( ZON ) and aflatoxin B1 ( AFL B1) mycotoxins concentrations.
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