Aydın İlinde Bir Süt Sığırı İşletmesinde Yetiştirilen Simmental ve Kırmızı Alaca Sığırların Süt ve Döl Verimi ile Süt Kalite Özellikleri: 2. Süt Kalitesi

Bu çalışmada, Aydın ilinde özel bir işletmede yetiştirilen Simmental (SIM) ve Kırmızı-Alaca (KA)sığırların süt kalite özellikleri belirlenmiştir. Süt kalite özellikleri olarak protein (SPO), laktoz (SLO),yağsız kuru madde (YKMO), toplam kuru madde (TKMO), kazein (KO) oranları ile aynı zamandasüt üre azotu (SUA), oleik asit (OA), beta hidroksi bütirik asit (BHBA) ve somatik hücre sayısı (SHS)belirlenmiştir. KA ve SIM ırklarına ait SPO, SLO, YKMO, TKMO, KO, SUA, OA, BHBA veLog10SHS ortalamaları sırasıyla %3,38±0,021 ve %3,40±0,015, %4,86±0,028 ve %4,81±0,019,%9,09±0,037 ve %9,09±0,025, %11,18±0,069 ve %11,23±0,048, %2,50±0,020 ve %2,44±0,014,12,07±0,200 mg/dl ve 12,28±0,138 mg/dl, 0,258±0,0095 g/100 g ve 0,255±0,0065 g/100 g,0,284±0,138 mmol/L ve 0,269±0,0093 mmol/L ve 5,417±0,0173 (261216 hücre/ml) ve 5,401±0,0118(251768 hücre/ml) bulunmuştur. Irklar arasında KO dışında süt kalite özellikleri bakımından önemlibir farklılık elde edilmemiş, her iki ırka ait düşük SHS ve uygun SUA düzeyleri işletmedeki bakım-besleme-barındırma-sürü yönetimi gibi unsurların uygun olduğunun göstergesi olarakdeğerlendirilebilir.

Milk Yield, Reproduction and Milk Quality Characteristics of Simmental andRed-Holstein Cattle Raised at a Dairy Farm in Aydın Province: 2. Milk Quality

In this study, the milk quality characteristics of Simmental (SIM) and Red-Holstein (RH) breeds raised in a private farm in Aydın were determined. As milk quality properties, the percentages of protein (MPC), lactose (MLC), non-fat dry matter (NFDMC), total dry matter (TDMC), casein (MCC) contents and also milk urea nitrogen (MUN), oleic acid (OA), beta-hydroxybutyric acid (BHBA) and somatic cell count (SCC) were determined. The averages of MPC, MLC, NFDMC, TDMC, MCC, MUN, OA, BHBA and Log10SCC belonging to RH and SIM breeds are 3.38 ± 0.021% and 3.40 ± 0.015%, 4.86 ± 0.028% and 4.81 ± 0.019%, 9.09 ± 0.037 and 9.09 ± 0.025, 11.18 ± 0.069 and 11.23 ± 0.048, 2.50 ± 0.020 and 2.44 ± 0.014, 12.07 ± 0.200 mg / dl and 12.28 ± 0.138 mg / dl, 0.258 ± 0.0095 g / 100 g and 0.255 ± 0.0065 g / 100 g, 0.284 ± 0.138 mmol / L and 0.269 ± 0.0093 mmol / L, and 5.417 ± 0.0173 (261216 cells / ml) and 5.401 ± 0.0118 (251768 cells / ml) were found, respectively. The breed did not differ significantly in milk quality characteristics, except for MCC. The lower SCC level in milk and the suitable level of MUN for both breeds shows that the factors such as maintenance-feeding-housing-herd management in the farm were optimal in this herd.

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