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Earlier calves are heavier calves

open access: yesCalifornia Agriculture, 1969
CATTLEMEN HAVE OBSERVED that calves dropped early in the calving season arc heavier at weaning and more profitable than calves dropped late in the calving season.
W Johnson, J Elings
doaj   +1 more source

Welfare of calves [PDF]

open access: yesEFSA Journal, 2023
This Scientific Opinion addresses a European Commission request on the welfare of calves as part of the Farm to Fork strategy. EFSA was asked to provide a description of common husbandry systems and related welfare consequences, as well as measures to prevent or mitigate the hazards leading to them. In addition, recommendations on three specific issues
EFSA Panel on Animal Health and Animal Welfare (AHAW)   +27 more
openaire   +6 more sources

La teoría del equilibrio puntuado como programa de investigación alternativo al neodarwinismo

open access: yesFilosofia e História da Biologia, 2023
Los modelos de cambio científico de la nueva filosofía de la ciencia, (paradigmas, programas de investigaciones, tradiciones de investigación) se aplican al estudio de la historia de la biología y, más concretamente, al desarrollo de la teoría de la ...
José Alsina Calvés
doaj   +1 more source

In vivo selection of resistant E. coli after ingestion of milk with added drug residues. [PDF]

open access: yes, 2014
Antimicrobial resistance represents a major global threat to modern medicine. In vitro studies have shown that very low concentrations of drugs, as frequently identified in the environment, and in foods and water for human and animal consumption, can ...
Bicalho, Rodrigo Carvalho   +3 more
core   +8 more sources

Differential proteomic of plasma provides a new perspective on scientific diagnosis and drug screening for dampness heat diarrhea in calves

open access: yesFrontiers in Veterinary Science, 2022
Dampness heat diarrhea (DHD) is one of the most common syndromes of calf diarrhea. Its complex etiology and lack of objective diagnostic criteria bring great challenges to the diagnosis and treatment of this disease.
Zunxiang Yan   +8 more
doaj   +1 more source

Feeding fennel (Foeniculum vulgare) seed as a potential appetite stimulant for Holstein dairy calves: Effects on growth performance and health

open access: yesJournal of Dairy Science, 2022
: This experiment was conducted to determine the effect of increasing dietary doses of fennel seed powder (FSP) on growth performance and health status in calves.
F. Nowroozinia   +6 more
doaj   +1 more source

Hypernatremia in Calves [PDF]

open access: yesJournal of Veterinary Internal Medicine, 1988
Hypernatremia (sodium chloride intoxication) is described in two calves due to presumed mixing errors of oral electrolyte solutions while undergoing therapy for neonatal diarrhea. The experimental induction of hypernatremia in two clinically normal calves is also reported. Physical findings in diarrheic calves included depression, weakness, dehydration,
J K, Pringle, L M, Berthiaume
openaire   +2 more sources

Birth traits of Holstein calves compared with Holstein, Jersey, Montbéliarde, Normande, and Viking Red-sired crossbred calves

open access: yesJournal of Dairy Science, 2022
: Holstein (HO) calves, 3-breed crossbred calves of Montbéliarde, Viking Red, and HO (MVH), and 3-breed crossbred calves of Normande, Jersey, and Viking Red (NJV) were compared for gestation length (GL), calf weight at birth (CW), calving difficulty (CD),
G.M. Pereira, L.B. Hansen, B.J. Heins
doaj   +1 more source

Density-dependent dispersal in multiple species metapopulations

open access: yesMathematical Biosciences and Engineering, 2008
A multiple species metapopulations model with density-dependent dispersal is presented. Assuming the network configuration matrix to be diagonizable we obtain a decoupling of the associated perturbed system from the homogeneous state.
Jacques A. L. Silva, Flávia T. Giordani
doaj   +1 more source

Effect of rest, post-rest transport duration, and conditioning on performance, behavioural, and physiological welfare indicators of beef calves

open access: yesPLoS ONE, 2022
The aim of this study was to assess the effects of conditioning, rest, and post-rest transport duration on welfare indicators of 6–7 mo old beef calves following a 20-h transport.
Daniela M. Meléndez   +5 more
doaj   +2 more sources

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