Studies of composition and major protein level in milk and colostrum of mares

Animal Science Journal = Nihon Chikusan Gakkaihō
Ewa PeckaKatarzyna Czyż

Abstract

The aim of the study was to determine the changes in composition and physicochemical features (pH, density, thermostability and acidity) of mare colostrum and milk, and of protein fraction contribution (serum albumin, β-casein, γ-casein, α-lactalbumin, G class immunoglobulins) depending on lactation stage. The research material was colostrum and milk samples from 12 Arabian mares. Colostrum samples were collected within 2 h after parturition and milk samples were collected twice, in the 3rd and 6th weeks of lactation. The level of basic milk components decreased significantly (only lactose content increased) as compared to colostrum. Total bacteria count and somatic cell count decreased significantly with an increase in resistance and urea level. The changes observed were connected to differentiated contribution of particular protein fractions and their relative proportions. Lower levels of γ-casein (P ≤ 0.05), β-casein, serum albumin as well as α-lactalbumin were observed in colostrum as compared to those in milk. Any relationship between lactation stage and β-casein content was observed. Serum albumin and α-lactalbumin content increased in subsequent milkings. The level of G class immunoglobulins decreased significantly and i...Continue Reading

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Citations

Feb 3, 2015·PloS One·Domenica ScumaciDomenico Britti
Apr 18, 2018·Journal of the Science of Food and Agriculture·Ewa Pecka-KiełbMilan Vasil
Apr 2, 2020·Animals : an Open Access Journal From MDPI·Ewa Pecka-KiełbAnna E Zielak-Steciwko
Jul 30, 2020·Animals : an Open Access Journal From MDPI·Michele FacciaYonas Hailu
Sep 15, 2020·PloS One·Ícaro M L G BarretoAdriano H N Rangel
Sep 14, 2018·Journal of Zoo and Wildlife Medicine : Official Publication of the American Association of Zoo Veterinarians·Angela GimmelAnnette Liesegang
Oct 19, 2019·Reproduction in Domestic Animals = Zuchthygiene·Cristina ÁlvarezLydia Gil
Apr 4, 2021·Animals : an Open Access Journal From MDPI·Mohsen M AlobreRiyadh S Aljumaah
Jul 3, 2021·Animals : an Open Access Journal From MDPI·Maria MößlerThomas Wittek

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