Results 61 to 70 of about 5,412,536 (240)

Enhancing Bactericidal Activity of Bovine Lymphoid Cells During the Periparturient Period

open access: yesJournal of Dairy Science, 1996
The antibacterial activity of bovine lymphocytes was evaluated following in vitro stimulation with interleukin-2. Mononuclear cells were isolated from the blood, lymph node, and mammary parenchymal tissue of four lactating and four periparturient dairy cows.
K A, Shafer-Weaver, L M, Sordillo
openaire   +2 more sources

Production and metabolic responses of Montbéliarde and Holstein cows during periparturient period and a sequential feed restriction challenge.

open access: yesJournal of Dairy Science
The objective was to compare the production and metabolic responses of 22 Montbéliarde (MONT) and 18 Holstein (HOLS) multiparous cows during the periparturient period, and during a sequential nutritional challenge (SNC), consisting of 4 successive ...
J.A.A. Pires   +5 more
semanticscholar   +1 more source

Plasma Estradiol in Holstein and Beef Cows During the Periparturient Period

open access: yesJournal of Dairy Science, 1974
Abstract Plasma estradiol, measured by radio-immunoassay, was compared in Holstein and beef cows during the periparturient period. A disposable Celite column was used for separation of estrogens. The antibody-estrogen complex was separated by charcoal and centrifugation.
E C, Mather   +4 more
openaire   +2 more sources

Investigation of Adiponectin, Leptin and Ghrelin Levels and Evaluation of Metabolic Profiles in the Periparturient Period in Romanov Sheep

open access: yesMehmet Akif Ersoy Üniversitesi Sağlık Bilimleri Enstitüsü Dergisi
The periparturient period is very important especially in terms of pregnancy-related herd-based diseases. In this period, especially for early diagnosis of subclinical diseases, a metabolic profile test is used.
Özlem Bicici, M. C. Karakurum
semanticscholar   +1 more source

Circulating levels of adipokines and hormones in periparturient primiparous Sahiwal cows

open access: yesIndian Journal of Animal Sciences, 2019
The circulating levels of adipokines and other hormones were determined in periparturient Sahiwal cows. Blood samples were collected from 6 Sahiwal cows during periparturient period (–30 to +90 days) at 15 days interval.
VIJAY PANDEY   +5 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, EarlyView.
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

Effects of different forage-containing rations on metabolic parameters and milk yield in the peripartum of Holstein cows

open access: yesCzech Journal of Animal Science, 2004
To evaluate the forage effects on performance and metabolic parameters, 24 Holsteins were randomly fed one of the diets containing a forage mixture with majority of alfalfa hay (AH), alfalfa silage (AS), or corn silage (CS) during the peripartum period ...
S. Yüksel   +4 more
doaj   +1 more source

Body condition score and weight are effective targeted selective treatment indicators for gastrointestinal nematodes in premating ewes

open access: yesVeterinary Record, Volume 198, Issue 3, Page e85-e91, 31 January/7 February 2026.
Abstract Background Ewe reproductive performance is key for flock profitability but can be impacted upon by gastrointestinal nematode (GIN) infections. Farmers commonly deworm ewes pre‐mating, yet concerns regarding anthelmintic resistance increase pressure to reduce wormer use.
Eiry G. Williams   +5 more
wiley   +1 more source

Supplementation with Combined Additive Improved the Production of Dairy Cows and Their Offspring with Maintenance of Antioxidative Stability

open access: yesAntioxidants
Oxidative stress damage in periparturient cows decreases both production and their health; supplementation with complex additives during the periparturient period has been used as an important strategy to enhance the antioxidant status and production of ...
Hongxing Zhang   +14 more
doaj   +1 more source

Investigation on leukocyte profile of periparturient cows with or without postpartum reproductive disease

open access: yesAsian Pacific Journal of Reproduction, 2014
Objective: To determine the leukocyte profile in periparturient cows and their relation with the development of postpartum reproductive diseases (PRD).
Rafiqul Islam   +2 more
doaj   +1 more source

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