Journals / Ankara Üniversitesi Veteriner Fakültesi Dergisi / 2019 / Cilt: 66 - Sayı: 1

Effects of malate supplementation to the concentrate feed on performance, rumen fermentation and carcass yield of lambs fed forage at restricted and ad-libitum le

Karma yemlere malat ilavesinin sınırlı ve serbest kaba yemle beslenen kuzularda performans, rumen fermantasyonu ve karkas randımanı üzerine etkile

Pages
73–81
Publication Date
2022-10-12
DOI
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AI Summary & Key Takeaways

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

In conclusion, malate addition did not improve growth rate and carcass yield of lambs but it affected ruminal acetic acid and butyric acid concentrations in lambs fed alfalfa hay ad-libitum.

📌 3 Key Takeaways

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Objective & Hypothesis:The effects of sodium and calcium salts of malic acid on growth performance, rumen pH, protozoa number, NH3-N level and volatile fatty acid (VFA) ratio and carcass yield in Akkaraman lambs fed alfalfa hay either restricted or ad-libitum were investigated.
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Key Findings & Data:In a completely randomized design experiment, treatments were arranged at 2x2 factorial fashion: two forage levels (100 g/d or ad-libitum) and two malate levels (0 or 5 g/d), which were tested in 32 male lambs (3-4 months of age, 23.28±1.27 kg BW).
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Conclusion & Impact:In conclusion, malate addition did not improve growth rate and carcass yield of lambs but it affected ruminal acetic acid and butyric acid concentrations in lambs fed alfalfa hay ad-libitum.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The effects of sodium and calcium salts of malic acid on growth performance, rumen pH, protozoa number, NH3-N level and volatile fatty acid (VFA) ratio and carcass yield in Akkaraman lambs fed alfalfa hay either restricted or ad-libitum were investigated. In a completely randomized design experiment, treatments were arranged at 2x2 factorial fashion: two forage levels (100 g/d or ad-libitum) and two malate levels (0 or 5 g/d), which were tested in 32 male lambs (3-4 months of age, 23.28±1.27 kg BW). Adaptation to feeding lasted 10 days; while sampling period lasted for 60 days. Growth performance, feed intake, slaughter and carcass weight were not affected by the treatments. A significant change was found in ruminal pH by forage feeding level over time. At the beginning of the experiment the amount of acetic acid was increased by ad-libitum alfalfa hay consumption and malate addition but this effect was disappeared end of the trial. Rumen propionic acid, NH3-N concentration and protozoa number were not affected by the treatments but they changed by the sampling time. There was alfalfa hay level x malate supplementation x sampling time interaction effect on butyric acid concentration. In conclusion, malate addition did not improve growth rate and carcass yield of lambs but it affected ruminal acetic acid and butyric acid concentrations in lambs fed alfalfa hay ad-libitum.

Özet

Araştırma malik asitin kalsiyum ve sodyum tuzunun sınırlı ve serbest kaba yem ile beslenen kuzularda büyüme performansı, rumen pH’sı, protozoa sayısı, amonyak azotu (NH3-N) ve uçucu yağ asitleri miktarı ile karkas randımanı üzerine etkilerinin belirlenmesi amacıyla yürütülmüştür. Araştırmada 32 adet (23.28±1.27 kg canlı ağırlığında) 3-4 aylık yaşta erkek kuzular kullanılmış, çalışma tesadüf parsellerinde 2x2 faktöriyel (kaba yem, 100 g/gün veya ad-libitum; malat, 0 veya 5 g/gün) deneme deseninde yürütülmüştür. Araştırmada yeme alıştırma dönemi 10 gün ve deneme dönemi 60 gün olarak belirlenmiştir. Araştırma sonunda kuzularda büyüme performansı, yem tüketimi ile kesim ve karkas ağırlıkları bakımından gruplar arasında fark görülmemiştir. Rumen pH’sı bakımından kuru yonca otu x numune alma zamanı arasındaki interaksiyon önemli bulunmuştur. Araştırmanın başında alınan rumen sıvısı örneklerinde asetik asit miktarı, tüketilen ad-libitum kuru yonca otu ve malat ilavesi ile artmış, deneme sonunda bu etki ortadan kalkmıştır. Rumen propiyonik asit, NH3-N miktarı ve protozoa sayısı muamelelerden etkilenmemiş, ancak numune alma zamanı bakımından değişiklik göstermiştir. Rumen sıvısında bütirik asit konsantrasyonu bakımından kuru yonca otu, malat ve numune alma zamanı arasındaki interaksiyon önemli bulunmuştur. Sonuç olarak yemlere malat ilavesinin kuzularda besi performansı ve karkas randımanını iyileştirmediği ancak rumende üretilen asetik ve bütirik asit miktarlarını etkilediği tespit edilmiştir.

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Cite This Article

TOPRAK, N. N., DİKMEN, B. Y., ÜNLER, F. M., ÖZTÜRK, H. (2022). Effects of malate supplementation to the concentrate feed on performance, rumen fermentation and carcass yield of lambs fed forage at restricted and ad-libitum le. Ankara Üniversitesi Veteriner Fakültesi Dergisi, Cilt: 66 - Sayı: 1, 73–81. https://ajindex.com/articles/444545

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