Effect of Different Level of Psyllium Supplementation to Horse Diet on in vitro Fermentation Parameters and Methane Emission
Öz
The purpose of this
study was to determine the effect of psyllium addition to horse diets on
methane emissions and digestion parameters by in vitro digestion technique using horse feces as inoculum. The
effect of 0 (control group), 5, 10, 20 and 40 g/kg DM (Dry matter) (treatment
groups) psyllium (Psyllium Husk, Solgar, UK) supplementations to horse diet
were determined on in vitro total gas
and methane production, metabolisable energy (ME), organic matter digestion
(OMD), ammonia nitrogen (NH3-N), short chain fatty acids (SCFA) and
pH value. In vitro digestibility
technique was performed with using glass syringes of 100 ml volumes (Model Fortuna,
Germany) at 39.0±0.2°C for 24 hour incubation. In the study, in vitro total gas production was
linearly decreased in treatment groups (up to 130 ml/g DM) compared to control
group (181 ml/g DM) (P<0.001). Inclusion of psyllium to horse ration
decreased methane production up to 35% (P≤0.01). The ME, OMD and SCFA levels of
horse diet affected by the psyllium supplementation (P<0.01). Addition of
psyllium at the levels of 5, 10, 20 and 40 g/kg DM did not have an effect on NH3-N
and pH (P>0.05). Consequently, it was demonstrated that psyllium, which use
commonly in constipated horses because of laxative efficacy, reduced methane
emission as another positive effect in horses. Although psyllium reduced
methane emission, it had adverse effects on in
vitro digestibility of horse ration. However, it was considered that
further investigations are necessary to understand the effects deeply by doing
the in vitro or in vivo digestion
trials with lower doses or psyllium is not suitable to use in healthy horses
for a long time.
Anahtar Kelimeler
Kaynakça
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Ayrıntılar
Birincil Dil
İngilizce
Konular
Sağlık Kurumları Yönetimi
Bölüm
Araştırma Makalesi
Yayımlanma Tarihi
1 Ocak 2017
Gönderilme Tarihi
4 Ocak 2016
Kabul Tarihi
2 Haziran 2016
Yayımlandığı Sayı
Yıl 2017 Cilt: 43 Sayı: 1