Results 51 to 60 of about 15,196 (211)

Genetic Evaluation of Reproductive and Metabolic Disorders and Displaced Abomasum in Czech Holstein Cows

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2019
We estimated the genetic parameters of the most frequent reproductive and metabolic disorders as recorded on‑line by 55 milk producers in Czech Holstein cows in the Diary of Diseases and Treatments.
Eva Kašná   +3 more
doaj   +1 more source

Potential of the Predatory Mites Gamasellodes lavafesii (Mesostigmata: Ascidae) and Cosmolaelaps mediocuspis (Mesostigmata: Laelapidae) on Different Soil Pests/Parasites and Alternative Prey for Large‐Scale Rearing

open access: yesJournal of Applied Entomology, Volume 150, Issue 5, Page 562-572, June 2026.
ABSTRACT Many species of Mesostigmata soil mites have potential as biological control agents of pests/parasites. This study evaluated the predation potential of two of these species, Gamasellodes lavafesii (Ascidae) and Cosmolaelaps mediocuspis (Laelapidae).
A. R. A. Barros   +4 more
wiley   +1 more source

Influence of ruminal degradable intake protein restriction on characteristics of digestion and growth performance of feedlot cattle during the late finishing phase. [PDF]

open access: yes, 2014
Two trials were conducted to evaluate the influence of supplemental urea withdrawal on characteristics of digestion (Trial 1) and growth performance (Trial 2) of feedlot cattle during the last 40 days on feed.
Calderon, Jose F   +7 more
core   +1 more source

Evaluation of a rapid method for measuring lactate in the venous blood of ruminants

open access: yesVeterinary Record, Volume 198, Issue 11, Page e503-e507, 30 May/6 June 2026.
Abstract Background In cattle and small ruminants, blood lactate can predict recovery and survival in various diseases. Increased lactate concentration is associated with an unfavourable‐to‐poor prognosis. Different mobile rapid lactate measurement devices have been explored in different animal species.
Viktoria Kichmann   +4 more
wiley   +1 more source

Bacterial profiling of Haemonchus contortus gut microbiome infecting Dohne Merino sheep in South Africa

open access: yesScientific Reports, 2021
A metagenomic approach was used to study the gut microbiome of Haemonchus contortus field strains and that of its predilection site, the abomasum of Dohne Merino sheep. The abomasum contents and H.
T. Mafuna   +6 more
doaj   +1 more source

Overview of Encapsulated Lysine and Methionine and Their Impacts on Transition Cow Performance and Health

open access: yesAnimal Research and One Health, Volume 4, Issue 2, Page 145-166, May 2026.
The transition period in dairy cows, spanning 3 weeks before and after calving, is a critical phase characterized by increased nutrient demands, reduced dry matter intake (DMI), and elevated risk of metabolic disorders such as negative nutrient balance (NNB), lipolysis, proteolysis, and oxidative stress.
Mohammed S. Seleem   +5 more
wiley   +1 more source

Gastrointestinal tract size, total-tract digestibility, and rumen microflora in different dairy cow genotypes [PDF]

open access: yes, 2014
peer-reviewedThe superior milk production efficiency of Jersey (JE) and Jersey × Holstein-Friesian (JE × HF) cows compared with Holstein-Friesian (HF) has been widely published. The biological differences among dairy cow genotypes, which could contribute
Beecher, Marion   +7 more
core   +1 more source

Hepatotoxicity of Nonesterified Fatty Acids to Dairy Cows: Pathophysiological Mechanisms and Prospective Solutions

open access: yesAnimal Research and One Health, Volume 4, Issue 2, Page 167-184, May 2026.
Unregulated inflammation increases non‐esterified fatty acids (NEFAs), and triggers multi‐pathway hepatocyte damage including oxidative stress, mitochondrial dysfunction, and metabolic disorders in dairy cows. ABSTRACT Circulating concentrations of nonesterified fatty acids (NEFAs) are elevated due to lipid mobilization from adipose tissue in ...
Siqing Mao   +12 more
wiley   +1 more source

Ultrasonographic findings in cows with left displacement of abomasum, before and after reposition surgery [PDF]

open access: yes, 2018
Background: The natural incidence of left displacement of abomasum (LDA) in dairy cows was high. The diagnosis of LDA usually relies on characteristic physical exam findings but that transabdominal ultrasound is a useful technique that has been applied ...
Li, X-B   +11 more
core   +1 more source

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