Cholesterol content in European bovine milk fats

Precht, D.

doi:10.1002/1521-3803(20010101)45:1<2::aid-food2>3.0.co;2-5

Cited by 42 publications

(33 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Feed of ruminants contains negligible amounts of cholesterol. Despite of that, based on a mean cholesterol content of 200-300 mg/100 g milk fat (Precht, 2001), as much as 5 g cholesterol are released by the bovine mammary gland per day. Comparable to Guretzky et al (2006), blood cholesterol concentration increased from 1-3mM during the first weeks of lactation up to 6-7mM reached roughly 8 weeks pp (Table 1).…”

Section: Discussionmentioning

confidence: 99%

Intraday variation of metabolic key indicators in serum of dairy cows between week 2 antepartum and week 12 postpartum

Wiedemann¹,

Horstmann²,

Marion³

et al. 2013

CZECH J ANIM SCI

View full text Add to dashboard Cite

ABSTRACT:Metabolic diseases during early lactation in dairy cows can be routinely diagnosed assessing key indicators in blood. The objectives of the present study were to characterize the impact of interindividual along with intraday variation on specific metabolites and to investigate the effect of the sampling time point relative to calving. Serum samples of four high-yielding, clinically healthy, multiparous dairy cows (body weight 589 ± 27 kg) were obtained in 3-h intervals during 24-h intervals throughout the transition period and early lactation (week -2 antepartum (ap), weeks 1, 2, 3, 5, 7, and 12 postpartum (pp)). The lowest intraday variation (less than 15%) as indicated by relative coefficients of variation (CV) was found for glucose, cholesterol, and aspartate aminotransferase (AST). Intraday variation characterized by a CV between 15 and 30% was typical of urea, β-hydroxybutyrate (BHB), total bilirubin, and non-esterified fatty acids (NEFA). The highest intraday variation (CV > 30%) was assessed for insulin. Week relative to calving had significant influence on interindividual means of BHB, NEFA, insulin, and cholesterol in blood, but did not affect the interindividual variation of all parameters investigated. No significant intraday variation patterns were found. It is concluded that the considerable intraday variation of especially BHB and NEFA has to be taken into account in herd health monitoring for estimating the proportional outcome in respect to animals exceeding thresholds for specific metabolic key parameters.

show abstract

Section: Discussionmentioning

confidence: 99%

Intraday variation of metabolic key indicators in serum of dairy cows between week 2 antepartum and week 12 postpartum

Wiedemann¹,

Horstmann²,

Marion³

et al. 2013

CZECH J ANIM SCI

View full text Add to dashboard Cite

show abstract

“…A high variation interval in the cholesterol content in ewes' milk was reported: from 15 to 30 mg·100 mL -1 [7]. The range of variation observed in other species has also been very high: from 204 to 382 mg of cholesterol per 100 g of cow's milk fat [25].…”

Section: Identificationmentioning

confidence: 99%

Composition of cholesterol and its precursors in ovine milk

Goudjil

Torrado

Fontecha

et al. 2003

Lait

View full text Add to dashboard Cite

-Identification and concentration of cholesterol and its precursors were investigated in ovine milk. In order to ensure a wide variety of milk composition, 45 samples were taken during the year from the bulk milk of five herds (ranging from 130 to 2500 adult ewes) corresponding to five breeds and located in different places in Spain. Gas chromatography/mass spectrometry analysis allowed the identification of small quantities of squalene, lathosterol, desmosterol, dihydrolanosterol and lanosterol. Neither campesterol nor b-sitosterol could be detected in the studied samples. The mean values (mg·100 g -1 fat) were: cholesterol 288.44 ± 42.22; squalene 1.80 ± 0.99; lathosterol 1.81 ± 0.82; desmosterol 0.41 ± 0.30; dihydrolanosterol 4.15 ± 2.40 and lanosterol 6.86 ± 1.88. With the statistical model used, the cholesterol concentration in milk fat was shown to be influenced by an interaction between the factors time of year of sampling and breed, but the variations observed do not show a clear trend.Cholesterol / minor sterols / ewe milk / fat / gas-chromatography / mass-spectrometry Résumé -Composition du cholestérol et de ses précurseurs dans le lait de brebis. L'identification du cholestérol et ses précurseurs a été effectuée sur le lait de brebis et leur concentration mesurée. Afin de garantir une large variété de composition du lait, 45 échantillons ont été prélevés tout au long de l'année sur une quantité de lait de cinq troupeaux (allant de 130 à 2500 agnelles adultes) correspondant à cinq races et localisées dans différentes régions d'Espagne. L'analyse par chromatographie gaz/spectrométrie de masse a permis d'identifier une petite quantité de squalène, lathosterol, desmosterol, dihydrolanosterol et lanosterol. Ni le campesterol ni le b-sitosterol ne pouvaient être détectés dans les échantillons étudiés. Les valeurs moyennes (mg·100 g -1 de matière grasse) ont été : cholestérol 288,44 ± 42,22; squalène 1,80 ± 0,99; lathosterol 1,81 ± 0,82; desmosterol 0,41 ± 0,30; dihydrolanosterol 4,15 ± 2,40 et lanosterol 6,86 ± 1,88. Les modèles statistiques utilisés ont permis l'observation d'une interaction entre l'effet période de l'année pour l'échantillonnage et la race sur la concentration du cholestérol dans la matière grasse du lait, mais les variations observées ne furent pas claires.Cholestérol / stérol mineur / lait de brebis / matière grasse / chromatographie gaz / spectrométrie de masse

show abstract

“…Immediately after parturition, milk was reported to contain also a high concentration of cholesterol (600 mg/g fat), which then showed a rapid decline during the first ten days post partum (Precht, 2001). Nevertheless, milk cholesterol concentration was shown to increase with the progress of lactation stage in dairy cows, from 3.74 mg/g fat at stage I (6-60 days of lactation) to 4.35 mg/g fat at stage II (61-210 days of lactation), and then to 4.66 mg/g fat at stage III (between day 211 and end of lactation) (Strzałkowska et al, 2009).…”

Section: Influence Of Lactation Stagementioning

confidence: 98%

“…Similarly, cholesterol concentration in milk of cows fed a total mixed ration supplemented with linseed (21 g/day) for seven weeks was reported to be 32% lower than in milk of controls (Reklewska et al, 2002). Also, gradual addition of 275 g or 550 g rapeseed oil, or corresponding quantities of wholemeal from rapeseed, decreased milk cholesterol concentration by 8-13% (Precht, 2001).…”

Section: Influence Of Diet Supplementation With Lipidsmentioning

confidence: 99%

“…Thus, no significant differences in milk cholesterol concentration were found between White Thari cows and Red Sindhi cows (Talpur et al, 2006), whereas the average cholesterol concentration in milk fat from Black and White Schleswig-Holsteins cows (246 mg/100 g fat) was reported to be slightly higher than in milk fat from Angler cows (231 mg/100 g fat) (Precht, 2001). …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Factors Influencing the Concentration of Certain Liposoluble Components in Cow and Goat Milk: A Review

et al. 2014

View full text Add to dashboard Cite

Milk fat contains a large number of fatty acids (FA) and other liposoluble components that exhibit various effects on human health. The present article reviews some of the factors affecting FA, vitamin A and cholesterol concentrations in milk from dairy cow and goat. Milk fat composition is linked to many factors, both intrinsic (animal species, breed, lactation stage) and extrinsic (environmental). The effect of animal species on milk fat composition is important, as reflected by higher concentrations of shortand medium-chain FA, vitamin A and cholesterol in goat than in cow milk. In a given ruminant species, the effects linked to breed are significant but limited and they can only be achieved over long periods of time. The lactation stage has an important effect on milk FA composition, mainly linked to body fat mobilisation in early lactation, but it only lasts a few weeks each year. Furthermore, changes in feeding have a marked influence on milk fat composition. Changing the forages in the diet of ruminants, pasture in particular, or supplementing lipids to the diet, represent an efficient mean to modify milk fat composition by decreasing saturated FA and cholesterol, and increasing cis-9,trans-11-CLA and vitamin A. Nutrition therefore constitutes a natural strategy to rapidly modulate milk FA, vitamin A and cholesterol composition, with the overall aim of improving the long-term health of consumers.

show abstract

Cholesterol content in European bovine milk fats

Cited by 42 publications

References 12 publications

Intraday variation of metabolic key indicators in serum of dairy cows between week 2 antepartum and week 12 postpartum

Intraday variation of metabolic key indicators in serum of dairy cows between week 2 antepartum and week 12 postpartum

Composition of cholesterol and its precursors in ovine milk

Factors Influencing the Concentration of Certain Liposoluble Components in Cow and Goat Milk: A Review

Contact Info

Product

Resources

About