Tarla sarmaşığı (Convolvulus arvensis) otunun kuzu rasyonlarına ilavesinin fermantasyon ve sindirim dereceleri üzerine etkisi

Öz

Bu çalışmada kaba yem kaynağı olarak değerlendirilen tarla sarmaşığı otu (Convolvulus arvensis) artan seviyelerde kuzu rasyonlarına %17 HP, 2500 kcal/kg KM izo-kalorik ve izo-nitrojenik olacak şekilde yonca kuru otu yerine ikame edilmiştir. Rasyonların in vitro gaz üretim tekniği ile gaz üretimi (GÜ), metan üretimi, metan yüzdesi, gerçek sindirilebilir kuru madde (GSKM), partitioning faktör (PF), mikrobiyal protein (MP), mikrobiyal protein sentezleme etkinliği (MPSE) ve gerçek sindirim derecesi (GSD) değerleri belirlenmiştir. Rasyonların 24 saatlik gaz üretim değerleri 91.4 – 95 ml (500 mg KM) arasında değişmiştir. Metan üretimleri 12.8 ile 15.68 ml arasında oluşmuştur. Rasyonların metan (ml) ve metan (%)’si istatistiksel olarak önemli bulunmuştur (P<0.01). Araştırmadaki GSKM, PF, MP, MPSE ve GSD (%) değerleri sırasıyla 297.22 mg – 302,63 mg, 3.13 – 3.40, 88.21 mg – 110,17 mg, %29.68- %35.28, %64,72 – %67,31 arasında bulunmuştur. Rasyonların Pearson’s korelasyon analizi metan (ml) ve metan (%) ile PF, MP, MPSE ve GSD değerleri arasında negatif bir ilişki olduğu tespit edilmiştir. Rasyonlarda GSKM, PF, MP, MPSE ve GSD değerleri arasında ise pozitif bir ilişki bulunmuştur (P <0.01). Tarla sarmaşığı otu, yonca kuru otu yerine kullanılmasıyla metan üretimini % 18.36 düşürmüştür. Tarla sarmaşığı otunun ruminant hayvanlarda kuru madde alımına ve canlı ağırlık artışına etkisini görebilmek için in vivo çalışmalara ihtiyaç vardır.

Anahtar Kelimeler

• Convolvus arvensis
• in vitro
• metan
• sindirim derecesi

Effect of field bindweed (Convolvulus arvensis) addition on fermentation and digestion level in lamb diets

Abstract

In this study, field bindweed (Convolvulus arvensis) was used as a coarse forage source, replacing alfalfa hay at increasing levels in lamb rations to achieve iso-caloric and iso-nitrogenous conditions with 17% crude protein and 2500 kcal/kg dry matter. The gas production (GP), methane production, methane percentage, true digestible dry matter (TDDM), partitioning factor (PF), microbial protein (MP), microbial protein synthesis efficiency (MPSE), and true digestion degree (TDD) values of the rations were determined using the in vitro gas production technique. The 24-hour gas production values of the rations ranged from 91.4 to 95 ml (500 mg DM). Methane production varied between 12.8 and 15.68 ml. The methane (ml) and methane (%) of the rations were found to be statistically significant (P<0.01). In the study, TDDM, PF, MP, MPSE, and TDD (%) values were found to be in the range of 297.22 mg – 302.63 mg, 3.13 – 3.40, 88.21 mg – 110.17 mg, 29.68% - 35.28%, and 64.72% - 67.31%, respectively. Pearson's correlation analysis of the rations revealed a negative relationship between methane (ml) and methane (%) with PF, MP, MPSE, and TDD values. A positive correlation was found among TDDM, PF, MP, MPSE, and TDD values (P <0.01). The use of field bindweed instead of alfalfa hay reduced methane production by 18.36%. To observe the impact of field bindweed on dry matter intake and live weight gain in ruminant animals, further in vivo studies are required.

Keywords

• Convolus arvensis
• İn vitro
• Methane
• Digestion degree

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