Effect of different dosages of oregano oil on performance and some blood parameters in lambs

Abstract

This research was carried out to determine whether adding oregano essential oil as a feed additive to the diet would affect the performance, carcass characteristics and some blood parameters of lambs. In the trial, 36 weaned male Kivircik lambs (2.5–3 month-old) were used. Lambs had an initial live weight of 22,71 ± 0,71kg and were divided into three groups of 12 lambs each. For the two treatment groups, Origanum vulgare essential oil was added into grower feed at the dose of 250 ppm and 500 ppm respectively. Besides this, hay was provided as roughage. Feed and water was supplied ad libitum during the trial. The first week was accepted as adaptation period and the experiment lasted for 9 weeks. The live weights and feed consumptions were measured in the beginning of the experiment and on the 14, 28, 42 and 56th days. Blood samples were collected before the morning feeding on the 0, 28 and 56th days of the experiment. All lambs were slaughtered, hot carcass weights and the weights of liver, empty stomach and empty intestine were determined at the end of the experiment. Serum concentrations of total cholesterol, triglyceride, high density lipoprotein (HDL) and low density lipoprotein (LDL) were measured using commercial kits. The final live weights were 28 ± 0,73 kg and no differences were observed among treatments. Daily live weight gain, hot carcass weights and yields, organ weights and serum parameters were not statistically significant between groups (P>0.05). In conclusion, addition of the oregano oil had no significant effects on performance, organ weights and blood parameters of weaned lambs in this study

Keywords

• Blood parameters
• fattening performance
• lamb
• oregano oil

Yeme farklı düzeylerde katılan kekik yağının kuzularda besi performansı ve bazı kan parametreleriüzerine etkisi

Abstract

Bu araştırma, rasyona katılan kekik yağının, kuzuların performans, karkas özellikleri ve bazı kan parametreleri üzerine olan etkilerinin saptanması amacıyla yapılmıştır. Araştırmada, 36 baş sütten kesilmiş erkek Kıvırcık ırkı kuzu (2,5-3 aylık) kullanılmıştır. Başlangıç canlı ağırlıkları 22,71 ± 0,71kg olan kuzular, her birinde 12 baş olacak şekilde üç gruba ayrılarak, deneme gruplarından birinin kuzu büyütme yemine 250 ppm, diğerine ise 500 ppm kekik yağı (Origanum vulgare) eklenmiştir. Bunun yanında kaba yem olarak kuru ot verilmiştir. Deneme süresince yem ve su ad libitum olarak verilmiştir. Deneme, ilk haftası adaptasyon dönemi olmak üzere, toplam 9 hafta sürdürülmüştür. Hayvanların canlı ağırlıkları ve yem tüketimleri denemenin başlangıcında, 14, 28, 42 ve 56. günlerde ölçülmüştür. Kan örnekleri, denemenin 0., 28. ve 56. günlerinde sabah yemlemesinden önce alınmıştır. Deneme sonunda bütün kuzular kesilip sıcak karkas ağırlıkları ile karaciğer, boş mide, boş bağırsak ağırlıkları ölçülmüştür. Kan örneklerinden, ticari kitler yardımıyla total kolesterol, trigliserit, HDL ve LDL analizleri yapılmıştır. Besi sonu canlı ağırlıkları 28 ± 0,73 kg olarak bulunmuş olup, gruplar arasında bir farklılık saptanmamıştır. Günlük canlı ağırlık artışları, sıcak karkas ağırlıkları ve verimleri, organ ağırlıkları ile serum parametreleri bakımından gruplar arasında istatistik önemde bir farklılık bulunmamıştır (P>0,05). Buna göre sütten yeni kesilmiş kuzularda rasyona kekik yağı katılmasının, besi performansı, organ ağırlıkları ve kan parametreleri üzerinde önemli bir farklılık oluşturmadığı saptanmıştır

Keywords

• Besi performansı
• kan parametreleri
• kekik yağı
• kuzu

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