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- Title
Combination of Phytoactives in the Diet of Lactating Jersey Cows: Effects on Productive Efficiency, Milk Composition and Quality, Ruminal Environment, and Animal Health.
- Authors
de Vitt, Maksuel G.; Signor, Mateus H.; Corrêa, Natalia G.; Breancini, Michel; Wolschick, Gabriel J.; Klein, Bruna; Silva, Luiz Eduardo L.; Wagner, Roger; Jung, Camila T. K.; Kozloski, Gilberto V.; Bajay, Miklos M.; Schroeder, Gabriela S.; Milarch, Carine F.; Da Silva, Aleksandro S.
- Abstract
Simple Summary: Adding the phytoactive mixture to the dairy cows' diet positively affected animal nutrition and health, improving Jersey production efficiency. The intake of phytogenics improved milk quality, reduced somatic cell counts, and increased unsaturated fatty acids. The intake of phytogenics per cow protected the mammary gland from bacteria Streptococcus spp. The phytoactive mixture directly affected the digestibility and modulation of the volatile fatty acid profile. The phytoactive mixture positively affected immune and antioxidant responses and anti-inflammatory action. This study's objective was to evaluate whether adding a combination of phytoactive (microencapsulated essential oils, minerals, turmeric extract, tannin, prebiotic, and probiotic) to the feed of lactating Jersey cows positively affects the production, composition, and quality of milk, rumen environment, and animal health. Fourteen Jersey cows were divided into two groups (control and phytogenic) for an experiment with two lactation phases of 45 days each (early lactation and mid-lactation). During the experiment, milk production was higher at various times in cows that consumed phytoactive, and these animals had the best feed efficiency. In mid-lactation, phytoactive intake increased nutrient digestibility. The number of lymphocytes in the blood is reduced when cows consume phytoactive substances. Globulin levels increased in these cows fed with the additive, which may be related to a higher concentration of immunoglobulins, especially IgA. Cows fed phytoactives had lower ceruloplasmin and haptoglobin concentrations. Lower serum lipid peroxidation, associated with greater glutathione S-transferase activity, is a good health indicator in cows that consume phytoactive substances. The higher concentration of volatile fatty acids was due to the higher proportion of acetic acid in the ruminal fluid combined with lower butyric acid. Somatic cell counts in milk were lower in cows that consumed phytoactives during mid-lactation, as well as the effect of the treatment on Streptococcus spp. (lower in cows that consumed the additive). We conclude that consuming the additive benefits cows' health modulates rumen fermentation and nutrient digestibility, and positively affects milk production and quality.
- Subjects
UNSATURATED fatty acids; HEALTH of cattle; JERSEY cattle; ANIMAL nutrition; BUTYRIC acid; LACTATION in cattle; RUMEN fermentation
- Publication
Animals (2076-2615), 2024, Vol 14, Issue 17, p2518
- ISSN
2076-2615
- Publication type
Article
- DOI
10.3390/ani14172518