Margerate Geraldine Keane

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The first objective of this study was to test the ability of systems of weighing and classifying bovine carcasses used in commercial abattoirs in Ireland to provide information that can be used for the purposes of genetic evaluation of carcass weight, carcass fatness class, and carcass conformation class. Secondly, the study aimed to test whether genetic(More)
The methylesterase which catalyzes demethylation of chemotactic membrane receptors in Salmonella typhimurium has been purified and characterized. Two forms of the enzyme have been isolated from cell extracts. One corresponds in molecular weight, Mr = 37,000, and amino acid composition to the predicted product of the structural gene for the methylesterase,(More)
We conducted a prospective survey of the utilization of venous thromboembolism (VTE) prophylaxis in 152 Medical ICU (MICU) patients. Utilization of prophylaxis was recorded daily, and commonly accepted risk factors for VTE were noted. Only 32.9 percent of patients received prophylaxis, and there was a delay of 2.0 +/- 2.8 days prior to institution.(More)
The objective of this study was to estimate genetic parameters for the weights of different wholesale cuts, using an experimental and a commercial data set. The experimental and commercial data sets included 413 and 635 crossbred Belgian Blue, Charolais, Limousin, Angus, Holstein, and Simmental animals, respectively. Univariate analyses using a mixed linear(More)
The objectives of this study were (a) to compare muscle and adipose tissue colour of male progeny of two strains of high genetic merit Friesian cows (New Zealand [NZF] and Irish [DAF]) with those of beef (Belgian Blue)×dairy (Holstein-Friesian) [BBHF] male progeny; (b) to compare bulls and steers (gender) of these genotypes and (c) to examine the effects of(More)
The objective of this experiment was to determine the effectiveness of current "best-practise" management of steers pre- and post-slaughter in reducing variation in the eating quality of beef. Steers sired by one Belgian Blue bull from Holstein-Friesian cows were managed optimally from birth to slaughter. Animals were slaughtered at target body weights and(More)
The objective was to determine the relationship of muscular and skeletal scores taken on the live animal and carcass conformation and fat scores with carcass composition and value. Bulls (n = 48) and heifers (n = 37) of 0.75 to 1.0 late-maturing breed genotypes slaughtered at 16 and 20 months of age, respectively, were used. At 8 months of age (weaning) and(More)
Equations for predicting the meat, fat and bone proportions in beef carcasses using the European Union carcass classification scores for conformation and fatness, and hindquarter composition were developed and their accuracy was tested using data from 662 cattle. The animals included bulls, steers and heifers, and comprised of Holstein-Friesian, early- and(More)
Calving difficulty is a trait that greatly affects animal welfare, herd profitability, and the amount of labor required by cattle farmers. It is influenced by direct and maternal genetic components. Selection and breeding strategies can optimize the accuracy of genetic evaluations and correctly emphasize calving difficulty in multiple-trait indices provided(More)
Accuracy and bias of EBV are important measures of the quality of genetic evaluations. A sampling method that accounts for the uncertainty in the estimation of genetic group effects was used to calculate accuracy and bias of estimated effects. The method works by repeatedly simulating phenotypes for multiple traits for a defined data and pedigree structure.(More)