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An Investigation on Sow-Milk Fat With Special Reference to the Fatty-Acid Composition

Eine Untersuchung, haupsächlich von der Zusammensetzung der Fettsäuren im Milchfett von Säuen

En undersökning i första hand av fettsyrekompositionen i suggmjölksfett

Acta Veterinaria Scandinavica volume 5, pages 311–330 (1964)Cite this article

Summary

The fatty-acid composition and the lipid content of sow’s milk were studied in 8 sows. Samples were taken shortly after delivery and then at intervals during the period of lactation. Altogether 22 different acids were identified. C 16:0, C 16:1, C 18:1, and C 18:2 dominate quantitatively, constituting about 90 per cent. In the diets used, the first days’ milk was poorer in C 14:0, C 16:0, and C 16:1 and richer in C 18:0 and C 18:1 than was later milk. Sow’s milk is distinct from cow’s milk, especially by its lack of, or only trace appearance of, short-chain fatty acids. The long-chain unsaturated acids are relatively abundant.

There is a considerable variation in the values from time to time. The cause of this is probably of inherent metabolic nature.

Zusammenfassung

Die Zusammensetzung der Fettsäuren und der Lipideninhalt in der Milch von Säuen, wurde bei 8 Säuen untersucht. Die Proben wurden kurz nach dem Ferkeln und danach in Abständen während der Laktationsperiode genommen. Zusammen wurden 22 verschiedene Säuren festgestellt. C16:0, C16:1,C18:1 und C 18:2 sind quantitativ überwiegend und machen ungefähr 90 % aus. Bei den angewendeten Diäten, das Milchfett des ersten Tages war ärmer an C 14:0, C 16:0 und C 16:1 und reicher an C 18:0 und C 18:1 als das Milchfett in späterer Milch. Die Milch der Sau unterscheidet sich von der Kuhmilch besonders dadurch, dass die kurzkettige Fettsäuren ganz fehlen oder nur in Spuren vorhanden sind. Die ungesättigte langkettige Säuren sind verhältnismässig reichlich vorhanden.

Von Zeit zur Zeit kommen zwischen den Werten bedeutende Unterschiede vor. Die Ursache dieser Unterschiede sind wahrscheinlich von rein metabolischer Natur.

Sammanfattning

Fettsyresammansättning och fettinnehåll i suggmjök från 8 suggor undersöktes. Suggorna mjölkades kort tid efter grisningen och sedan med intervall under hela laktationen. 22 olika fettsyror identifierades. Fettsyrorna C16:0, C16:1, C18:1 och C 18:2 dominerade och representerade c:a 90 % av fettsyrorna. Med de använda kosterna innehöll de första dagarnas mjölk mindre av C 14:0, C 16:0 och C 16:1 och mer av C 18:0 och C 18:1 än fettet i den senare mjölken. Suggmjölk skiljer sig från komjölk speciellt genom att den endast innehåller obetydligt med kortkedjiga fettsyror. De långkedjiga, omättade fettsyrorna är relativt rikligt förekommande.

En ansenlig variation i värdena förefinnes mellan olika provtagningstillfällen. Orsaken till detta torde vara av ren metabolisk natur.

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Authors and Affiliations

  1. Medical Department for Non-Ruminants, Royal Veterinary College, Stockholm, Sweden

    Paul Lindberg & Gunnar Tollerz

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  1. Paul Lindberg
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  2. Gunnar Tollerz
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Supported by grants from “Jordbrukets Forskningsråd” and “Anslag för främjande av medicinsk forskning vid Veterinärhögskolan.”

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Lindberg, P., Tollerz, G. An Investigation on Sow-Milk Fat With Special Reference to the Fatty-Acid Composition. Acta Vet Scand 5, 311–330 (1964). https://0-doi-org.brum.beds.ac.uk/10.1186/BF03547386

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