Osman KÜÇÜK, Selim SIRAKAYA

VARIATION COMPARISON OF THEORETICALLY PREPARED DIETS TO THE DIETS PRACTICALLY SERVED TO CATTLE USING SIX SIGMA METHODS; 1-INVESTIGATION OF NUTRIENT VARIABILITY IN TMR RATION FOUR EXAMPLE ON DAIRY FARM

The aim of this study is to investigate nutrient variations in TMR (Total Mixed Ration) rations prepared according to the physiological conditions and requirements of for different animals on dairy herd farm and to evaluate whether the nutrient components comply with the target values, within the scope of the study “Variation Comparison of Theoretically Prepared Diets to The Diets Practically Served to Cattle Using Six Sigma Methods”. The first stage of the study was carried out on a dairy farm with ≈1.500 heads milking cows capacity. Nutrient chemical analyzes and particle size assessments were carried out in the TMR samples collected in different days, including milking cows, heifers, close up cows, calfs, and beef cattle groups on this dairy farm. Within this scope, 130 TMR samples milking cows and other groups (heifers, close up cows, calfs, beef cattle) 64 (4x16) samples were analyzed. In addition to, nutrient analysis of the raw materials used for the preparation of TMR was carried out individually. In this study, on three different dairy farms, 30 milking TMR samples (3X10) collected on different days were evaluated for the same purpose. It was assessed that the nutrient values calculated in the TMR mixtures and the nutrient values determined in the chemical analysis were incompatible and nutrient values were found to vary with time. It was also found that the particle size of the samples taken at different times in the TMR samples important varied. For this reason, it is considered that the compatibility of the nutrient values determined by calculation with the chemical analysis results in the preparation of the ration can contribute positively to the productivity and profitability of the dairy farm in terms of both economic sense and animal performance.

TEORİDE HAZIRLANAN RASYONLARIN PRATİK UYGULAMADAKİ VARYASYONLARININ ALTI SİGMA METODOLOJİSİ İLE ARAŞTIRILMASI; 1-TMR RASYONLARINDA BESİN MADDE DEĞİŞKENLİKLERİNİN DÖRT SÜT SIĞIRI ÇİFTLİĞİ ÖRNEĞİNDE İNCELENMESİ

Bu çalışmada, “Teoride Hazırlanan Rasyonların Pratik UygulamadakiVaryasyonlarının Altı Sigma Metodolojisi İle Araştırılması”isimli çalışma kapsamında; dört farklı süt sığırıçiftliğinde hayvanların fizyolojik durum ve gereksinimlerinegöre hazırlanan toplam karışım rasyonlarında (TMR) meydanagelen besin madde değişkenliklerinin incelenmesi vehedef değerler ile uyumlu olup olmadığının değerlendirilmesiamaçlanmıştır. Çalışma ilk etapta ≈1.500 baş sağmalhayvan kapasitesine sahip bir süt sığırı işletmesinde gerçekleştirilmiştir.Bu işletmede; sağmal, düve, ağır gebe, besi vebuzağı grupları için farklı günlerde toplanan TMR numunelerinde,besin madde kimyasal analizleri ve partikül büyüklüğüdeğerlendirmeleri yapılmıştır. Bu kapsamda, sağmalTMR’den 130 diğer dört grup TMR’sinden 64 (4X16) adetnumune değerlendirmeye tabi tutulmuştur ve TMR’lerdekullanılan hammaddelerin bireysel olarak besin maddeanalizleri de yapılmıştır. Yine bu çalışma içerisinde, üç farklısüt sığırı işletmesinde, farklı günlerde toplanan 30 adet(3X10) sağmal TMR numunesi aynı amaç için değerlendirilmiştir.TMR karışımlarında; hesaplanan besin madde değerleriile kimyasal analiz sonuçlarının uyumu değerlendirilmişve analiz sonuçlarının değişkenlik gösterdiği bulunmuştur.Partikül büyüklükleri açısından değerlendirildiğinde, TMRnumunelerinin kendi içerisindeki varyasyonlarının önemliseviyelerde olduğu tespit edilmiştir. Bu nedenle rasyonhazırlamada hesap yolu ile belirlenen besin madde değerleriile kimyasal analiz sonuçlarının uyumlu olması, hem ekonomikanlamda hem de hayvan performansı açısından işletmeverimliliğine ve karlılığına olumlu katkı sağlayacağıdeğerlendirilmiştir.

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