Project description:Effects of heifer feeding regimes on growth characteristics, metabolism, endocrinology, health and subsequent milk yield has been described in several studies. This indicates that nutritional impacts have both short- and long-term effects on the animal’s metabolic regulation. Adipose tissue has an important role in whole-body metabolic regulation, as it is the main site for both lipid synhtesis, storage and mobilization as well as an endocrinologically active organ. However, little is known about bovine adipose metabolism at gene level, and what is done is mostly found in mature cows by means of microarrays. The goal of this study was to apply next-generation RNA sequencing on the adipose tissue of Norwegian Red heifers fed differently, in order to gain knowledge about nutritionally induced regulatory mechanisms in growing dairy cattle. The objectives were to: 1) Describe the differential gene expression in the adipose tissue of heifers fed diets differing in energy and protein content; 2) Describe the long-term changes in adipose gene expression occuring within treatment groups between the experimental feeding period and 6 months after the transition from experimental diets to a similar diet offered to all animals; 3) Identify any post-treatment effects of the experimental feeding as expressed by differential gene expression between treatment groups still present 6 months after the termination of experimental feeding; and 4) To identify candidate genes for further studies on the breeding and feeding for improved feed efficiency and production in the Norwegian Red.
Project description:We performed a comparative genome-wide methylation analysis of longissimus dorsi muscles between the Japanese Black (Wagyu) and Chinese Red Steppes cattle, which exhibit significant differences in meat quality traits. This will allow us to better understand the correlation between DNA methylation variants and meat quality traits.
Project description:Comparative transcriptome profile of genes differentially expressed in longissimus dorsi muscles between Japanese black (Wagyu) and Chinese Red Steppes cattle by RNA-seq
Project description:In vitro challenge of bovine macrophages (derived from blood monocytes)with live bacteria of a Staphylococcus aureus strain isolated from a clinical mastitis case.
Project description:Whole genome sequencing of Red Chittagong Cattle (RCC) cattle and insight into candidate gene mutations associated with disease resistance
Project description:Comparative genomic hybridization of 9 Norwegian E. faecalis baby isolates with E. faecalis V583 as a reference strain using an E. faecalis V583 oligo array. Total gene content was analyzed by whole genome microarrays.
