Süt Sığırı Rasyonunun İn Vitro Ruminal Gaz Üretimi, Metan Salınımı, Organik Asit ve Protozoa Sayısı Üzerine Aquilaria agallocha Roxb. Uçucu Yağının Etkisi

Öz

Ruminal fermantasyon sonucu oluşan ve sera gazı olan metan (CH4) hem ekonomik hem de ekolojik olarak küresel iklim değişikliğinde önemli paya sahiptir. Ruminant beslemede uçucu yağların metan emisyonlarını azalttığına yönelik çalışmalar bulunmaktadır. Bu in vitro çalışmanın amacı, Aquilaria agallocha Roxb. bitkisinden elde edilen uçucu yağın yonca kuru otunun ruminal gaz üretimini, metan emisyonunu, organik asitler ve protozoa üzerine etkilerini araştırmaktır. Aquilaria agallocha Roxb. uçucu yağının bileşenleri analiz edildi. Rumen sıvısına 5, 10 ve 15 µL/0,2 g kuru madde (KM) (A0, A5, A10 ve A15) seviyelerinde Aquilaria agallocha Roxb. uçucu yağı eklenmesinin in vitro ruminal sindirime etkileri in vitro gaz üretimi ile belirlendi. Sonuç olarak rumen sıvısına 10 µL Aquilaria agallocha Roxb. uçucu yağı eklenmesinin, yonca otunun in vitro ruminal gaz üretimi ve sindirim parametreleri üzerinde olumlu etki göstererek antimetanojenik etki yarattığı belirlendi.

Anahtar Kelimeler

• Aquilaria agallocha Roxb.
• In vitro gaz üretimi
• Metan
• Uçucu yağ

The Effects of Aquilaria agallocha Roxb. Volatile Oil on In Vitro Ruminal Gas Production, Methane Emission, Volatile Fatty Acide Amounts and Protozoa Counts of Total Mixed Ration of Dairy Cattle

Öz

Methane (CH4), a major greenhouse gas produced during ruminal fermentation, has a significant ratio in both the economic and ecological impact of global climate change. Literature reports have been published, which suggest that dietary supplementation with plant volatile oils reduces methane emissions in ruminant production. This in vitro study was aimed at investigating the effects of agarwood (Aquilaria agallocha Roxb.) volatile oil on in vitro ruminal gas production, methane emission, ruminal organic acids and protozoa counts of total mixed ration (TMR) of dairy cattle. Component analyses were performed for agarwood (Aquilaria agallocha Roxb.) volatile oil. The effects of agarwood volatile oil, added to ruminal fluid at levels of 5, 10 and 15 µL/0.2 g dry matter (DM) (Groups A0, A5, A10 and A15), on in vitro ruminal digestion were determined based on in vitro gas production. In conclusion, it was ascertained that the addition of 10 µL of Aquilaria agallocha Roxb. volatile oil to ruminal fluid positively affected in vitro ruminal gas production and digestion parameters of total mixed ration (TMR) of dairy cattle, and showed an antimethanogenic effect.

Anahtar Kelimeler

• Aquilaria agallocha Roxb.
• In vitro gas production
• Methane

Kaynakça

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