Hay as the feed for reindeer
Authors: Syrjälä-Qvist Liisa 
Published: February 2013

<p>The palatibility, digestibility and nitrogen balance of the diets containing different amounts of hay and concentrates were investigated by four adult male reindeer after 3x3 Latin square design. Three reindeer were kept inside in metabolic cages and one outside in a fence. Hay was dried timothy hay and concentrates were barley and commercial complete feed. The proportion of hay in the diet dry matter in the different diets was intended to be 80, 65 and 50%. The reindeer did not, however, consume their total hay rations and so those proportions were 75, 62 and 49%. The concentrate rations were, instead, consumed completely. The average total dry matter amounts eaten daily increased, when the proportions of concentrate increased in the diet, being in the different diets 14, 15 and 16 g/liveweight kg, where the amount of hay was 10, 9 and 8 g, respectively. The digestibility of the different components was good in all the diets, (66 &mdash; 78%), and there were no significant differences between the diets and animals. The nitrogen balance was negative in all the diets.</p><p>H&ouml; som foder &aring;t renar.</p><p>Abstract in Swedish / Sammandrag: Med ett f&ouml;rs&ouml;k vari ingick fyra fullvuxna renar (3 &mdash; 4 &aring;riga hanar) och som utf&ouml;rdes enligt 3x3 latinsk fyrkant metoden unders&ouml;ktes smaklighet och sm&auml;kbarhet samt N-balans hos dieter, som inneh&ouml;ll olika m&auml;ngder h&ouml; och kraftfoder. Tre av renarna h&ouml;lls s&aring; l&auml;nge f&ouml;rs&ouml;ket varade i sm&auml;ltbarhetsh&auml;ckar inomhus och en var utomhus i inh&auml;gnad. H&ouml;et var timotej och kraftfodret bestod avkorn och industrielt allfoder. H&ouml;ets andel ber&auml;cknad p&aring; fodergivans torrsubstans var pianerad i de olika dieterna till 80, 65 og 50%. Renarna &aring;t dock inte allt det h&ouml;, som ingick i fodergivan utan h&ouml;ets andel blev 75, 62 och 49%. Kraftfodergivan &aring;t djuren d&aring;remot helt och hallet. De totala dagligen konsumerade torrsubstansm&auml;ngderna &ouml;kade d&aring; kraftfodrets andel &ouml;kade och var vid de olika dieterna 14, 15 og 16 g/kg levande vikt. D&auml;rav var h&ouml;ets andel motsvarande 10, 9 og 8 g/kg levande vikt. De olika foderkomponenternas sm&auml;kbarhet i fodergivan var god eller i de olika dieterna 66 &mdash; 78%. I de olika djurens dieter forekom inte heller m&auml;rkbara skillnader. N-balansen var negativ i alla dieter.</p><p>Heina porojen rehuna.</p><p>Abstract in Finnish / Yhteenveto: Eri m&auml;&auml;ri&auml; hein&auml;&auml; ja v&auml;kirehua sis&auml;lt&auml;v&auml;n rehuannoksen maittavuutta ja sulavuutta sek&auml; typpitasetta selvitettiin nelj&auml;ll&auml; t&auml;ysikasvuisella urosporolla 3x3 latinalaisen maliin mukaan j&auml;rjestetyss&auml; kokeessa. Poroista kolme oli kokeen aikana sis&auml;ll&auml; sulavuuskoeh&auml;keissa ja uksi poro ulkona tarhassa. Hein&auml; oli timoteit&auml; ja v&auml;kirehu ohraa ja teollista t&auml;ysrehua. Hein&auml;n osuudeksi rehuannoksen kuiva-aineesta laskettuna suunniteltiin eri dieeteille 80, 65 ja 50%. Porot eiv&auml;t kuitenkaan sy&ouml;neet tarjottua hein&auml;m&auml;&auml;r&auml;&auml;, joten hein&auml;n osuudeksi j&auml;i 75, 62 ja 49%. V&auml;kirehuannoksensa porot s&ouml;iv&auml;t kokonaan. Kuiva-aineen p&auml;ivitt&auml;iset kokonaissy&ouml;ntim&auml;&auml;r&auml;t lis&auml;&auml;ntyiv&auml;t v&auml;kirehun osuuden lis&auml;&auml;ntyess&auml; ollen eri dieeteill&auml; 14, 15 ja 16 g/elopeinokilo, mist&auml; m&auml;&auml;rist&auml; hein&auml;&auml; oli vestaavasti 10, 9 ja 8 g/elopainokilo. Rehuannoksen eri komponenttien sulavuudet olivat hyv&auml;t, eri dieeteill&auml; 66 &mdash; 78% eik&auml; el&auml;inten ja dieettien v&auml;lill&auml; ollut merkitsevi&auml; eroja. Typpitase oli negatiivinen kaikilla dieeteill&auml;.</p>