Results 51 to 60 of about 399,857 (144)

Effects of transport age and calf and maternal characteristics on health and performance of veal calves

open access: yesJournal of Dairy Science, 2022
: The objective of this study was to investigate effects of calf transport age (14 vs. 28 d) and calf (e.g., sex and breed) and dam characteristics (e.g., parity and ease of birth) on health and performance of veal calves until slaughter age. Calves (n =
F. Marcato   +7 more
doaj   +1 more source

Multi‐omics reveals gastrointestinal metabolic disorder‐induced diarrhea in postpartum dairy cows

open access: yesiMetaOmics, EarlyView.
Nutritional diarrhea is a pervasive, costly challenge in dairy production. Using integrated metagenomic and metabolomic profiling, we identified coordinated microbial and metabolic alterations across the rumen, hindgut, and serum. In the rumen, enrichment of Prevotella sp.
Weixuan Tang   +7 more
wiley   +1 more source

Factors associated with failure of passive transfer of immunity and morbidity in spring-born beef and dairy calves during the first 30 days of life

open access: yesFrontiers in Veterinary Science
The failure of passive transfer of immunity (FPT) in calves is associated with increased susceptibility to infectious diseases, leading to higher morbidity rates and reduced herd productivity. The present study evaluated dam and calf characteristics, and
Rischi Robinson Male Here   +5 more
doaj   +1 more source

Blood immune transcriptome analysis of artificially fed dairy calves and naturally suckled beef calves from birth to 7 days of age

open access: yesScientific Reports, 2018
Neonatal calves possess a very immature and naïve immune system and are reliant on the intake of maternal colostrum for passive transfer of immunoglobulins.
C. Surlis   +10 more
doaj   +1 more source

Literature Review on Technological Applications to Monitor and Evaluate Calves’ Health and Welfare

open access: yesAnimals, 2023
Precision livestock farming (PLF) research is rapidly increasing and has improved farmers’ quality of life, animal welfare, and production efficiency. PLF research in dairy calves is still relatively recent but has grown in the last few years.
Flávio G. Silva   +4 more
doaj   +1 more source

Overview of the re‐evaluation of trace elements as nutritional feed additives in the European Union: characterization, safety, and efficacy

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract The re‐evaluation of feed additives in the European Union was outlined in the Regulation (EC) No 1831/2003. The primary objectives were to ensure safety and verify efficacy, as well as to update authorizations and phase out unsafe additives or those in which the industry expressed no interest.
Gloria López‐Gálvez   +11 more
wiley   +1 more source

Graduate Student Literature Review: Integrating concepts of animal welfare and health-related quality of life for preweaning dairy calves*

open access: yesJournal of Dairy Science
: Dairy calf welfare assessment tools focusing on the preweaning period have been proposed in recent research. Despite the existence of these tools, assessing the welfare and health-related quality of life (HRQoL) of dairy calves remains challenging ...
Jean Ramos   +6 more
doaj   +1 more source

Feeding behavior and activity levels are associated with recovery status in dairy calves treated with antimicrobials for Bovine Respiratory Disease

open access: yesScientific Reports, 2022
Calves with Bovine Respiratory Disease (BRD) have different feeding behavior and activity levels prior to BRD diagnosis when compared to healthy calves, but it is unknown if calves who relapse from their initial BRD diagnosis are behaviorally different ...
M. C. Cantor   +3 more
doaj   +1 more source

A recipe for recovery: diet as a decisive tool in species conservation

open access: yesOikos, EarlyView.
Animals consume foods in specific quantities and ratios to meet a multi‐dimensional nutrient target that maximizes their fitness. Attempts to reach this target in an ever‐changing nutritional landscape often influence animal foraging behavior, habitat choice, and food‐web interactions. Consequently, understanding the nutritional ecology of a species is
Noa Lavie   +3 more
wiley   +1 more source

Preliminary exploration of the health and behavior around the time of transportation of beef × dairy calves and Holstein bull calves 3 days of age or younger in the western United States

open access: yesJournal of Dairy Science
: In the western United States, it is common practice for dairy and beef × dairy calves to be sold and shipped within the first few days of life, making transportation one of the first challenges that a calf will experience.
M.C. Cramer   +3 more
doaj   +1 more source

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