Higher somatic cell counts resulted in higher malondialdehyde concentrations in raw cows’ milk

Suriyasathaporn, Witaya; Vinitketkumnuen, Usanee; Chewonarin, Teera; Boonyayatra, Sukolrat; Kreausukon, Khwanchai; Schukken, Y.H.

doi:10.1016/j.idairyj.2005.11.004

Cited by 41 publications

(42 citation statements)

References 19 publications

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“…This inconsistency could be associated with order of iron treatment or an effect of iron treatment. Mean MDA concentrations of 1.61±0.238 mg/kg have been reported within 34 h of milk collection (Suriyasathaporn et al, 2006). No significant differences in MDA in milk were observed from the infusion of iron-containing water into the abomasum, although variation in samples from individual cows was high (Table J2).…”

Section: Experiments 3: Influence Of Abomasal Infusion Of Iron On Oxidmentioning

confidence: 92%

“…Processing conditions can easily affect oxidation rates as temperature and light exposure affect oxidative stability and consequently may be reflected in the MDA concentration of samples (Suriyasathaporn et al, 2006;Drake et al, 2007;Clark et al, 2009). Laboratory conditions were controlled as completely as possible.…”

Section: Experiments 3: Influence Of Abomasal Infusion Of Iron On Oxidmentioning

confidence: 99%

“…The MDA values in this study were slightly lower than the MDA values in the experimental study and were in the normal range. The milk in the case study was raw, compared to processed (homogenized, pasteurized) milk in the experimental study but had received a mild heat treatment during the DHIA composition testing (Suriyasathaporn et al, 2006). However, the heat treatment was not comparable to the heat treatment used in a processing scenario, a factor that can affect oxidation (Eric A. Decker, 2010).…”

Section: Experiments 4 (Case Study): Effect Of Low and High Iron Sourcmentioning

confidence: 99%

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Effects of mineral content of bovine drinking water: Does iron content affect milk quality?

Mann¹,

Duncan²,

Knowlton³

et al. 2013

Journal of Dairy Science

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Implications of water chemistry on milk synthesis are not well described yet water is an important nutrient for dairy cattle. High mineral concentrations (>0.3 mg/kg Fe and others) may be associated with natural levels in ground water, contaminating sources, drought conditions, or storage systems. This study evaluated effects of added iron in bovine drinking water on milk composition (Ca, Cu, Fe, P) measured by inductively coupled plasma mass spectrometry and oxidative stability measured by thiobarbituric acid reactive substances assay for malondialdehyde (MDA), volatile chemistry and sensory analysis (triangle test). Prepared ferrous lactate treatments, corresponding to 0, 2, 5, and 12.5 mg/kg drinking water levels were given abomasally (10 L/d) to 4 lactating dairy cows over 4 periods (1 wk infusion/period) in a Latin square design. Milk was collected (d6 of infusion), processed (homogenized, pasteurized), and analyzed within 72 h of processing and 7 d of refrigerated storage. No differences in MDA (1.46±0.04 mg/kg) or iron (0.22±0.01 mg/kg) were observed in processed milk. Cross effects analysis (treatment*cow) showed significant differences in calcium, copper and iron (P < 0.05).Sensory differences (P < 0.05), in treatment vs. control, suggested iron from water sources contributes to milk flavor changes. A case study with high and low (0.99; 0.014 mg/kg) iron treatments revealed no significant differences (P > 0.05) in mineral composition (0.23±0.06 mg/kg Fe) or MDA (0.77±0.03 mg/kg) of raw milk. Iron added to milk causes changes in oxidation; high levels of iron in bovine drinking water may not have observed effects.iii ACKNOWLEDGEMENTS

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Section: Experiments 3: Influence Of Abomasal Infusion Of Iron On Oxidmentioning

confidence: 92%

Section: Experiments 3: Influence Of Abomasal Infusion Of Iron On Oxidmentioning

confidence: 99%

Section: Experiments 4 (Case Study): Effect Of Low and High Iron Sourcmentioning

confidence: 99%

See 1 more Smart Citation

Effects of mineral content of bovine drinking water: Does iron content affect milk quality?

Mann¹,

Duncan²,

Knowlton³

et al. 2013

Journal of Dairy Science

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“…Changes may occur in oxidant and antioxidant status in the blood during transitional period from early lactation to late lactation period that could affect both the animal and the health of others which benefit from the milk and meat 16,17 . In addition, it has not reached to sufficient number of studies relation to lactation period and comprehensive oxidative status on goats.…”

Section: Introductionmentioning

confidence: 99%

Erken ve Geç Laktasyon Periyodunun Keçilerde Plazma Oksidan/Antioksidan Dengesi Üzerindeki Etkileri

Karapehlivan¹,

Kaya²,

Sağ³

et al. 2013

Kafkas Univ Vet Fak Derg

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SummaryThe purpose of the study was to investigate effects on oxidant and antioxidant balance of early and late lactation period in goats. Blood samples used in study were obtained from Halep goats in early and late lactation period. Oxidative stress index (OSI) and lipid hydroperoxide (LOOH) and total oxidative status (TOS) and total antioxidant status (TAS) were analyzed to determined of oxidant and antioxidant balance. Plasma TOS, OSI and LOOH levels in early lactation period were significantly higher (P<0.001) than late lactation period of goats, while lower (P<0.001) level of TAS. It was concluded that lipid peroxidation decreased and antioxidant defence system mechanism in late lactation period in goats served as more positive than early lactation period. Keywords: Goat, Lactation, Total antioxidant status, Total oxidant status, Oxidative stress Erken ve Geç Laktasyon Periyodunun Keçilerde Plazma Oksidan/Antioksidan Dengesi Üzerindeki Etkileri ÖzetBu çalışmada keçilerin oksidan ve antioksidan dengesi üzerinde erken ve geç laktasyon periyodunun etkilerinin araştırılması amaçlandı. Çalışmada kullanılan kan örnekleri erken ve geç laktasyon periyodunda bulunan Halep keçilerinden elde edildi. Oksidan ve antioksidan dengenin değerlendirilmesi için oksidatif stres indeksi (OSİ), lipid hidroperoksid (LOOH), total oksidan (TOS) ve total antioksidan düzeyleri (TAS) analiz edildi. Erken laktasyon periyodunda plazma TOS, OSİ ve LOOH düzeylerinin geç laktasyon periyodundaki keçilere göre daha yüksek (P<0.001) olduğu belirlenirken, TAS düzeyinin daha düşük olduğu belirlendi (P<0.001). Sonuç olarak, geç laktasyon periyodundaki keçilerde erken laktasyon periyoduna göre lipid peroksidasyonunun azaldığı ve antioksidan savunma sistemi mekanizmasının daha olumlu yönde işlediği kanısına varıldı.

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“…Süt üreticileri açısından verimliliğin en önemli unsurları temiz ve kaliteli süttür. Bu kapsamda çiğ süt kalitesinin değerlendirilmesinde kullanılan en önemli kriterlerden bir tanesi somatik hücre sayısıdır [2,3] . Somatik hücre sayısının takibi ve değerlendirilmesi, hayvanların bireysel ve sürü bazında sağlık durumlarının kontrolü için büyük önem taşımaktadır.…”

Section: Makale Kodu (Article Code): Kvfd-2013-9894unclassified

Çiğ Süt Kalite Değerlendirmesinde Bulanık Mantık Yaklaşımı

Akıllı¹,

Atil²,

Kesenkaş³

2014

Kafkas Univ Vet Fak Derg

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ÖzetGelişen toplum yapısı ile birlikte gerçek hayatta yaşanılan sorunlar ve olaylara bakış açıları da değişmektedir. İnsanlar sorunlarını sahip oldukları sözel ve sayısal verileri kullanarak çözmekte ve bunun için çeşitli yöntemlerden yararlanmaktadırlar. Matematiksel yöntemler insanlara kesinlik içeren durumlarda sorunların çözümlenmesinde sayısal verileri analiz ederek yardımcı olurken, belirsizlik içeren durumlarda yetersiz kalabilmektedir. Son yıllarda kalite değerlendirilmesi gibi belirsizlik içeren durumlarda ortaya çıkan problemlerin çözümünde sıklıkla kullanılan bulanık mantık, yapay zeka yöntemlerinden bir tanesidir. Klasik mantık teorisine göre daha esnek bir yapıya sahip olan bulanık mantık teorisi, olayları nesnelere "0" ve "1" arasında atadığı doğruluk dereceleri ile açıklamakta böylece sözel ve sayısal veriler arasında bir bağ oluşturmaktadır. Bu çalışmada, çiğ süt örneklerinin kalite sınıflarına ayrılmasını amaçlayan bulanık mantık tabanlı bir karar destek sistemi geliştirilmiştir. Sistemin girdileri çiğ süt örneklerine ilişkin toplam bakteri sayısı, somatik hücre sayısı ve protein miktarlarının ölçülen değerleridir. Tasarlanan bulanık sistemin çıktısı ise çiğ süt kalite değerlendirmesi şeklindedir. Yapılan analizin başarısını belirlemek amacıyla uzman kararları ile karşılaştırma yapılmış ve sistemin %80 değerinde başarılı olduğu görülmüştür. Sistemin modellenmesi Matlab (sürüm R2010b) programı kullanılarak yapılmıştır. Anahtar sözcükler: Bulanık mantık, Karar destek sistemi, Çiğ süt kalitesi Fuzzy Logic Approach in the Evaluation of Raw Milk Quality SummaryThe problems that faced with in real life and perspective of the events change with developing structure of society. The people in the face of problem use a variety of methods with their verbal and numerical data to find solution. Mathematical methods that including precision are sufficient in the analyses of numerical data while the modeling of verbal data may be insufficient in case of uncertainty. In recent years, fuzzy logic is one of the artificial intelligence methods that used in solution of the problems which are rosed from quality evaluation situations that consists of uncertainty cases. The fuzzy logic theory that has more flexible structure than the theory of classical logic, describe the events with degree of accuracy which is between "0" and "1" appointed to object. Fuzzy logic-based decision support system offers to people a more realistic and objective perspective in decision making. In this study, fuzzy logic base decision support system which aims to classify raw milk samples in quality has been developed. System inputs are; bacteria count for milk samples, somatic cell count and values for measured protein amounts. Designed fuzzy logic output is consist of raw milk quality value measurement; in order to calculate the success of the analysis, results have been compared to specialist's decisions and due to the comparison, it noticed that the system has 80% success rate. Modeling of the system has been made via Matlab (version R2...

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Higher somatic cell counts resulted in higher malondialdehyde concentrations in raw cows’ milk

Cited by 41 publications

References 19 publications

Effects of mineral content of bovine drinking water: Does iron content affect milk quality?

Effects of mineral content of bovine drinking water: Does iron content affect milk quality?

Erken ve Geç Laktasyon Periyodunun Keçilerde Plazma Oksidan/Antioksidan Dengesi Üzerindeki Etkileri

Çiğ Süt Kalite Değerlendirmesinde Bulanık Mantık Yaklaşımı

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