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| http://dx.doi.org/10.1093/tas/txaa121 | DOI Listing |
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Genetic associations of colostrum yield with antibodies concentration and gross composition for selective breeding in Italian Holsteins.
J Dairy Sci
January 2025
Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro (PD), Italy.
The quality of bovine colostrum, primarily determined by IgG concentration, is essential for the transfer of passive immunity and the development of the gastrointestinal tract in neonates. High IgG concentration in bovine colostrum (BC) is pivotal for the calf at first meal; however, while neonates often refuse to voluntarily drink the recommended amount of BC in the first hours of life, the dam frequently fails to produce a sufficient volume of colostrum at first milking. This study seeks to estimate the h of colostrum yield (CY) and its genetic correlations with total Ig, IgG, protein, and fat concentrations for the first time in the Italian Holstein population.
View Article and Find Full Text PDFDoes dietary supplementation of pregnant mares with a commercial stud feed balancer improve the transfer of passive immunity in their foals? A controlled field trial.
J Equine Vet Sci
January 2025
Department of Equine Clinical Science, University of Liverpool, Neston, CH64 7TE United Kingdom.
This prospective, controlled field trial aimed to determine the effect of dietary supplementation of mares in late pregnancy with a commercial stud feed balancer on the transfer of passive immunity to their foals. Eighty-two pregnant mares on a single stud farm that were eligible for inclusion were assigned into two groups (Intervention and Control) based primarily on existing social groupings. Between 64-224 days prepartum, all mares received the same forage-based diet but mares in the Intervention group received an in-feed commercial stud feed balancer and mares in the Control group received the stud's home-mix concentrate.
View Article and Find Full Text PDFBovine Colostrum in Pediatric Nutrition and Health.
Nutrients
December 2024
Department of Molecular Biology and Genetics, Çanakkale Onsekiz Mart University, Çanakkale 17000, Türkiye.
Bovine colostrum (BC), the first milk secreted by mammals after birth, is a trending alternative source for supplementing infants and children, offering benefits for gut and immune health. Its rich components, such as proteins, immunoglobulins, lactoferrin, and glycans, are used to fortify diets and support development. Preterm development is crucial, especially in the maturation of essential systems, and from 2010 to 2020, approximately 15% of all premature births occurred at less than 32 weeks of gestation worldwide.
View Article and Find Full Text PDFFoals born alive from mares with ultrasonographically assessed placental abnormalities: Neonatal health and development up to weaning compared to foals from healthy mares.
Theriogenology
December 2024
Clinic for Horses - Unit for Reproductive Medicine, University of Veterinary Medicine, Hannover, Foundation, Buenteweg 15, 30559 Hanover, Germany; ReproTraining, Rolandstrasse 62, 33415 Verl, Germany. Electronic address:
Article Synopsis
- The study compares the neonatal health and development of foals born from mares with ultrasonographically assessed placental abnormalities (UPA) to those born from healthy mares in the same warmblood stud.
- Foals from UPA mares displayed shorter gestation lengths and lower birth weights, along with poorer colostrum quality, affecting their immunoglobulin G levels and leading to more frequent administration of foreign plasma compared to foals from healthy mares.
- Additionally, 8.1% of foals from UPA pregnancies exhibited maladjustment syndrome, whereas none in the control group did, indicating potential health risks associated with placental disease.
Evaluation of factors associated with immunoglobulin, protein, fat and lactose concentrations in colostrum of dairy cows from Austria.
Acta Vet Scand
December 2024
Clinical Department for Farm Animals and Food System Science, Clinical Center for Ruminant and Camelid Medicine, University of Veterinary Medicine Vienna, Veterinaerplatz 1, Vienna, 1210, Austria.
Background: Calves rely on the passive transfer with immunoglobulins derived from colostrum. Currently, there is a lack of knowledge on colostrum management practices and colostrum quality on small scale family-owned dairy farms in Austria. The objectives of this study were to describe factors that are associated with immunoglobulin, protein, fat and lactose concentrations in dairy cow colostrum from the federal state of Salzburg.
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