TY - JOUR AU - Bøe, Ulla-Britt AU - Gundersen, Nicolai AU - Sletten, Harald AU - Jacobsen, Endre PY - 1982/05/01 Y2 - 2024/03/29 TI - Feed intake, rumenal pH and lactic acid in reindeer during transition to a complete ration added buffer and fat JF - Rangifer JA - Ran VL - 2 IS - 1 SE - Articles DO - 10.7557/2.2.1.422 UR - https://septentrio.uit.no/index.php/rangifer/article/view/422 SP - 31-38 AB - <p>Feed intake, general condition, rumenal pH and lactic acid content was followed during feeding of starved reindeer on a coventional diet (RF-71). The result was a dramatic decrease of rumen pH (pH=5.1 in experiment no. Ill) a few hours after feeding of the coventional diet, but this could be counteracted significantly by addition of buffer (pH=6.4 in experiment no. Ill) of hydrogenated marine oil (pH=6.1 in experiment no. Ill) to the ration. The highest content of the lactic acid in the rumen was 40 mM in animals fed RF-71, whereas addition of buffer or hydrogenated marine oil completely supressed accumulation of this acid.</p><p>Foropptak, pH og melkesyre i vomma hos rein under overgangsforing med kraftfor tilsatt buffer og fett.</p><p>Abstract in Norwegian&nbsp;/ Sammendrag: Forinntak, almentilstand, pH og melkesyreinnhold i vom ble registrert under foring av sultede rein med konvensjonelt kraftfor (reinfor 71 = RF-71). Det ble funnet et sterkt pH-fall i vomma (pH=5.1, fors&oslash;k III) f&aring; timer etter at dyrene startet &aring; spise RF-71. Denne effekten ble redusert ved tilsetting av buffer (pH=6.4, fors&oslash;k III) eller herdet marint fett (pH=6.1, fors&oslash;k III) til dietten. De dyr som ble foret med RF-71 hadde et melkesyreinnhold i vomma p&aring; opp til 40 mM. Tilsetting av buffer eller herdet marint fett til dietten forhindret akkumulering av melkesyre.</p><p>Poron rehunk&auml;ytt&ouml;, p&ouml;tsin pH ja maitohapposis&auml;lt&ouml; siirtym&auml;vaiheen ruokinnassa k&auml;ytett&auml;ess&auml; v&auml;kirehua, johon on lis&auml;tty puskuria ja rasvaa.</p><p>Abstract in Finnish / Yhteenveto: Rehunk&auml;ytto&auml;, yleistilaa, p&ouml;tsin pH:ta ja maitohapposis&auml;lt&ouml;&auml; tutkittiin ruokittaessa n&auml;lkiintyneit&auml; poroja tavanomaisella v&auml;kirehulla (poron 71 = RF-71). Joitakin tuntejaruokinnan aloittamisen j&auml;lkeen havaittiin voimakas p&ouml;tsin pH:n lasku (pH 5.1, koe III). T&auml;m&auml; vaikutus v&auml;heni kun poron nauttiman ravinnon joukkoon lis&auml;ttiin puskuria (pH 6.4, koe III) tai merikaloista valmistettua kovetettua rasvaa (pH 6.1, koe III). RF-71 rehua nauttineiden el&auml;inten p&ouml;tsin maitohapposis&auml;lt&ouml; oli 40 nM. Puskurin tai kovetetun merellisen el&auml;inper&auml;isen rasvan lis&auml;&auml;minen ravintoon ehk&auml;isi maitohapon kasaantumista.</p> ER -