20.500.12556/DKUM-73995 Vpliv dolžine slame na priraste govejih pitancev na farmi Žipo Lenart The influence of straw lenght on the growth of bulls on the farm Žipo Lenart V letu 2018 smo na farmi Žipo Lenart testirali vpliv dolžine slame na priraste bikov pitancev. V poskusu je bilo vključenih 32 bikov, ki so bili porazdeljeni v štiri bokse tako, da je v vsakem boksu bilo osem bikov. V vseh boksih so biki v osnovi prejemali enak krmni obrok s slamo različne dolžine (2 cm, 3 cm, 5 cm in nerezana slama). Poskus smo izvajali 3 mesece in v tem obdobju izvedli mesečo tehtanje ter merjenje višine vihra in križa. Med skupinami bikov v nobenem obdobju nismo zabeležili statistično značilnih razlik (P ≥ 0,05) ne v masi, višini vihra, višini križa ter ne v dnevnih prirastih. Zraven tega smo spremljali še obnašanje živali, kjer smo beležili katero aktivnost izvaja določena žival v opazovanem času. Bike smo opazovali po v naprej pripravljeni preglednici tri krat na dan po pet minut na žival. Med posameznimi oblikami obnašanja ni prišlo do statistično značilnih razlik (P ≥ 0,05) med skupinami. Statistično značilne razlike (P < 0,05) med skupinami smo opazili pri številu prežvekov na minuto in potrebnem času za en bolus, medtem ko pri številu prežvekov na bolus ne. Presejalni test smo opravili za kontrolo sestave krmnega obroka ter za pomoč pri ugotavljanju, če živali prebirajo krmo. Po opravljenem presejalnem testu ostanka krmnega obroka smo pri skupini krmljeni s 5 cm slamo in kontrolni skupini v vrhnjem in spodnjem situ opazili odstopanja od priporočil in sicer na račun prebiranja krme. In 2018 we tested the influence of cereal straw length on the growth of beef bulls at the Žipo Lenart farm. In the experiment, we tested 32 bulls, which were divided into four cattle pens so that there were eight bulls in each pen. In all pens, bulls basically received the same feed meal with the straw of different lengths (2 cm, 3 cm, 5 cm, and untreated straw). The experiment was carried out for 3 months and during this period, we once a month carried out weighing of the bulls and measuring of the height of withers and the back. No statistically significant differences (P ≥ 0,05) were recorded in bulls during any period, not in weight, not in the height of the withers, height of the back and not in the daily gain. Additionally, we also monitored the behavior of animals, where we recorded which activity is carried out by a particular animal in the observed time. Bulls were observed according to a pre-prepared table three times a day for five minutes per animal. There were no statistically significant differences between individual forms of behavior (P ≥ 0,05) between groups. Statistically significant differences (P < 0,05) between the groups were observed at the number of chews of the cud per minute and the required time for one bolus, while the number of chews of the cud per bolus did not increase. The screening test was carried out to control the composition of the feed and to help determine if the animals are sifting through the feed. Following a screening test of the remainder of the feed, we observed deviations from the recommendations in the groups, fed with 5 cm long straw and in the control group. Those deviations were spotted in the top and the bottom sieve, because of the bulls’ sifting through the feed. biki / dolžina slame / prirasti / prežvekovanje / presejalni test bulls / straw length / growth / chewing / screening test true true false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2019-07-15 20:18:23 2019-08-20 08:30:28 2022-08-10 05:52:43 2019-08-22 03:24:27 2019 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2022-08-20 URN:SI:UM:DK:FDIS2OJK MAG_Veber_Barbara_2019.pdf MAG_Veber_Barbara_2019.pdf 1 A168800217FDFA56585F6F68C424CFC6 71b446062f691c143917910b52668c82770ba1087403283e159efa3b76f91ce7 cfc75dcc-7c10-11eb-bb7a-00155d0001ca 20.500.12556/dkum/65df55c8-af42-42e5-985d-fe1508190ca8 https://dk.um.si/Dokument.php?lang=slv&id=135651 Fakulteta za kmetijstvo in biosistemske vede 0 0 0