Results 11 to 20 of about 31,967 (251)

Relationship between daily rumination time and estrus of dairy cows [PDF]

open access: yesJournal of Dairy Science, 2012
The aim of the study was to investigate whether rumination time (RT) was related to estrus in dairy cattle. On 4 farms, cows were equipped with a microphone-based sensor system that allowed continuous recording (in blocks of 2 h) of RT. The analyzed data set consisted of 265 verified estrus cycles of 224 animals with artificial insemination leading to ...
S Hoy
exaly   +3 more sources

A comparative analysis of rumen pH, milk production characteristics, and blood metabolites of Holstein cattle fed different forage levels for the establishment of objective indicators of the animal welfare certification standard [PDF]

open access: yesAnimal Bioscience, 2022
Objective This study was conducted to obtain an objective index that can be quantified and used for establishing an animal welfare certification standard in Korea. For this purpose rumen pH, ruminating time, milk yield, milk quality, and blood components
Dong Jin Baek   +5 more
doaj   +1 more source

Using Changes in Eating and Rumination Time to Indicate the Onset of Parturition or Changes in the Health Status of Dairy Cows

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2021
Monitoring the time of rumination and eating of dairy cows, by new technologies, is increasingly used in commercial herds. Evaluation of parameters obtained from Vitalimeter 5P, was performed in 656 dairy cows Czech Fleckvieh and Holstein cattle ...
Radim Codl   +4 more
doaj   +1 more source

Automatic identification and analysis of multi-object cattle rumination based on computer vision

open access: yesJournal of Animal Science and Technology, 2023
Rumination in cattle is closely related to their health, which makes the automatic monitoring of rumination an important part of smart pasture operations. However, manual monitoring of cattle rumination is laborious and wearable sensors are often harmful
Yueming Wang   +3 more
doaj   +1 more source

Associations of Grazing and Rumination Behaviours with Performance Parameters in Spring-Calving Dairy Cows in a Pasture-Based Grazing System

open access: yesAnimals, 2023
This study investigated the relationship of the length of time spent grazing and ruminating with the performance parameters of spring-calved grazing dairy cows (n = 162) over the lactation period for three lactation seasons (n = 54 per season).
Muhammad Wasim Iqbal   +3 more
doaj   +1 more source

Feed Efficiency and Physiological Parameters of Holstein and Crossbred Holstein × Simmental Cows

open access: yesAnimals, 2023
This study aimed to compare the feed efficiency (FE) and physiological parameters of Holstein and crossbred Holstein × Simmental cows in a confinement system during winter and summer.
Deise Aline Knob   +7 more
doaj   +1 more source

Real-time monitoring of ruminal microbiota reveals their roles in dairy goats during subacute ruminal acidosis [PDF]

open access: yesnpj Biofilms and Microbiomes, 2021
AbstractRuminal microbiota changes frequently with high grain diets and the occurrence of subacute ruminal acidosis (SARA). A grain-induced goat model of SARA, with durations of a significant decrease in the rumen pH value to less than 5.6 and an increase in the rumen lipopolysaccharides concentration, is constructed for real-time monitoring of ...
Xiaodong Chen   +7 more
openaire   +3 more sources

Suitability of rumination time during the first week after calving for detecting metabolic status and lactation performance in simmental dairy cows: a cluster-analytic approach

open access: yesItalian Journal of Animal Science, 2021
An unsupervised machine learning approach (ML) of rumination time (RT) data was used to evaluate metabolic and lactation performance in a cohort of Simmental dairy cows (29) around parturition.
Vincenzo Lopreiato   +8 more
doaj   +1 more source

Effect of flooring system on maintenance behaviours of cows

open access: yesIndian Journal of Animal Sciences, 2021
To evaluate the effect of floor on maintenance behaviours of cow in loose housing system, four groups, viz. T0 (concrete in covered and brick-paved in open area), T1 (concrete in covered and sand bed in open), T2 (rubber mat in covered and sand bed in ...
DEEPAK UPADHYAY   +4 more
doaj   +1 more source

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