AIMC Topic: Parturition
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Road Transport of Late-Pregnant Mares Advances the Onset of Foaling.
Journal of equine veterinary science
Dec 23, 2019
Cortisol is involved in the initiation of parturition and we hypothesized that increased maternal cortisol release advances the onset of foaling. Transport is a stressor for horses and induces an increase in cortisol release. To determine stress effe...
Metabolomics meets machine learning: Longitudinal metabolite profiling in serum of normal versus overconditioned cows and pathway analysis.
Journal of dairy science
Sep 20, 2019
This study aimed to investigate the differences in the metabolic profiles in serum of dairy cows that were normal or overconditioned when dried off for elucidating the pathophysiological reasons for the increased health disturbances commonly associat...
Comparing regression, naive Bayes, and random forest methods in the prediction of individual survival to second lactation in Holstein cattle.
Journal of dairy science
Aug 22, 2019
In this study, we compared multiple logistic regression, a linear method, to naive Bayes and random forest, 2 nonlinear machine-learning methods. We used all 3 methods to predict individual survival to second lactation in dairy heifers. The data set ...
The ResQu Index: A new instrument to appraise the quality of research on birth place.
PloS one
Aug 10, 2017
OBJECTIVE: Place of birth is a known determinant of health care outcomes, interventions and costs. Many studies have examined the maternal and perinatal outcomes when women plan to give birth in hospitals compared with births in birth centres or at h...
Machine-learning-based calving prediction from activity, lying, and ruminating behaviors in dairy cattle.
Journal of dairy science
May 10, 2017
The objective of this study was to use automated activity, lying, and rumination monitors to characterize prepartum behavior and predict calving in dairy cattle. Data were collected from 20 primiparous and 33 multiparous Holstein dairy cattle from Se...
GC-MS Metabolomics Identifies Metabolite Alterations That Precede Subclinical Mastitis in the Blood of Transition Dairy Cows.
Journal of proteome research
Nov 28, 2016
The objectives of this study were to determine alterations in the serum metabolites related to amino acid (AA), carbohydrate, and lipid metabolism in transition dairy cows before diagnosis of subclinical mastitis (SCM), during, and after diagnosis of...
Machine-learning classification of neurocognitive performance in children with perinatal HIV initiating de novo antiretroviral therapy.
AIDS (London, England)
Apr 1, 2020
OBJECTIVE: To develop a predictive model of neurocognitive trajectories in children with perinatal HIV (pHIV).
Effects of supplementing methionine hydroxy analog on beef cow performance, milk production, reproduction, and preweaning calf performance.
Journal of animal science
Dec 1, 2017
Mature Simmental × Angus cows (214 cows; 635 ± 7 kg) were utilized to determine the effects of late gestation and early postpartum supplementation of methionine hydroxy analog (MHA) on cow BW, BCS, milk production, milk composition, reproduction, and...
Developmental and reproductive characteristics of beef heifers classified by pubertal status at time of first breeding.
Journal of animal science
Dec 1, 2017
Data collected for 10 or more years at the West Central Research and Extension Center, North Platte, NE ( = 1,104); the Gudmundsen Sandhills Laboratory, Whitman, NE ( = 1,333); and the USDA, ARS, Fort Keogh Livestock and Range Research Laboratory, Mi...
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