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Journals / Ankara Üniversitesi Veteriner Fakültesi Dergisi / 2022 / Cilt: 69 - Sayı: 2

Effects of replacing grain feed with rumen-protected fat on feedlot performance, ruminal parameters and blood metabolites in growing Merino lambs’ diets during the hot season

Sıcak aylar boyunca Merinos ırkı kuzu rasyonlarına tane yem yerine ilave edilen rumenden korunmuş yağ ilavesinin besi performansı, rumen parametreleri ve kan metabolitleri üzerine etkiler

Hıdır GÜMÜŞ
Fatma KARAKAŞ OĞUZ1
Mustafa Numan OĞUZ
Kadir Emre BUĞDAYCI
Hüseyin DAĞLI
Pages
131–138
Publication Date
2022-10-12
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The ruminal pH, VFA and ruminal NH3-N concentrations were unchanged, but the protozoa numbers decreased significantly by RPF supplementation (P

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, the effects of rumen-protected fat (RPF) were evaluated as an energy source for partial replacement of grain feed in the diets of Merino male lambs during the hot season.
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Key Findings & Data:Fourteen six months old Merino male lambs weighing average of 29.59 kg were randomly allocated into two groups: control diet (CON) and diets supplemented with 30 g/kg RPF.
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Conclusion & Impact:The ruminal pH, VFA and ruminal NH3-N concentrations were unchanged, but the protozoa numbers decreased significantly by RPF supplementation (P
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, the effects of rumen-protected fat (RPF) were evaluated as an energy source for partial replacement of grain feed in the diets of Merino male lambs during the hot season. Fourteen six months old Merino male lambs weighing average of 29.59 kg were randomly allocated into two groups: control diet (CON) and diets supplemented with 30 g/kg RPF. Live weight (LW), dry matter intake (DMI) and average daily gain (ADG) were recorded, and the feed conversion ratio (FCR) was then calculated. The ruminal pH, the ruminal ammonia nitrogen concentrations (NH3-N) value, the molar proportion of volatile fatty acid (VFA), blood serum as well as hematological parameters were determined and protozoa numbers were counted. While the live weight and daily gain of the lambs were not influenced by dietary treatments, DMI was increased with RPF supplementation. The ruminal pH, VFA and ruminal NH3-N concentrations were unchanged, but the protozoa numbers decreased significantly by RPF supplementation (P

Özet

Bu çalışmada, sıcak sezon boyunca Merinos ırkı erkek kuzu rasyonlarına enerji kaynağı olarak tane yem yerine rumende korunmuş yağ ilavesinin etkileri değerlendirilmiştir. Ortalama 29,59 kg canlı ağırlığında 6 aylık yaşta, 14 adet Merinos ırkı erkek kuzular rastgele kontrol grubu ve diyete 30 g/kg rumende korunmuş yağ ilave edilen grup olarak ikiye ayrılmıştır. Canlı ağırlık, kuru madde tüketimi ve ortalama günlük canlı ağırlık artışı kayıt altına alınmış ve yemden yararlanma oranı hesaplanmıştır. Rumen pH değeri belirlenmiş, rumen amonyak-azot konsantrasyonları analiz edilmiş, protozoalar sayılmış ve kan serum ile hematolojik değerler belirlenmiştir. Korunmuş yağ ilavesi deneme gruplarında kuzuların canlı ağırlık ve günlük canlı ağırlık artışı önemsiz olarak etkilenirken, kuru madde tüketimi artmıştır. Korunmuş yağ ilavesi ile rumen pH değeri, uçucu yağ asitleri ve rumen amonyak-azotu konsantrasyonları değişmezken, protozoa sayısı önemli derecede azalmıştır. Kontrol grubu ile karşılaştırıldığında korunmuş yağ ilavesi bazı serum ve hematolojik parametrelerini önemli derecede etkilemiştir. Sonuç olarak kuzu konsantre yemlerine 30 g/kg korunmuş yağ hayvanın performansını negatif etkilemeksizin diyetin enerji değerini artırmak için rasyonlara ilave edilebilir.

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Cite This Article

GÜMÜŞ, H., OĞUZ1, F. K., OĞUZ, M. N., BUĞDAYCI, K. E., DAĞLI, H. (2022). Effects of replacing grain feed with rumen-protected fat on feedlot performance, ruminal parameters and blood metabolites in growing Merino lambs’ diets during the hot season. Ankara Üniversitesi Veteriner Fakültesi Dergisi, Cilt: 69 - Sayı: 2, 131–138. https://ajindex.com/articles/444344

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