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A simple procedure to secure an indwelling jugular vein catheter to the neck of cattle for repeated blood sampling
Download2001
MacLean, Melissa A., Zalkovic, Pavol, Ambrose, Divakar J.
Abstract A procedure to secure a jugular vein catheter system to the neck of cattle is described. A wide-mouthed polypropylene bottle attached to a halter strap provided a secure container for the catheter. This device allowed convenient access to the catheter for repeated sampling and,...
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Ovarian and endocrine responses associated with the treatment of cystic ovarian follicles in dairy cows with gonadotropin releasing hormone and prostaglandin F2alpha, with or without exogenous progesterone
Download2004
Schmitt, Eric J. -P., Mattos, Ricardo C., Ambrose, Divakar J., Thatcher, William W., Lopes, Flavia L.
The objectives of this observational study were to document ovarian and endocrine responses associated with the treatment of cystic ovarian follicles (COFs) in dairy cows, using gonadotropin releasing hormone (GnRH) and prostaglandin F2α(PGF) with or without exogenous progesterone. A secondary...
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Diacylglycerol acyltransferase (DGAT) activity in relation to muscle fat content and DGAT1 genotype in two different breeds of Bos taurus
Download2006-01-01
Sorensen, Brent M., Kühn, Christa, Teuscher, Friedrich, Schneider, Falk, Weselake, Randall J., Wegner, Jochen J.
To circumvent the obvious waste of resources when producing good marbled beef, research is needed to clarify mechanisms which are involved in intramuscular fat storage in cattle. The possible association between the activity of diacylglycerol acyltransferase (DGAT) and muscle fat content was...
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Impaired de novo choline synthesis explains why phosphatidylethanolamine N-methyltransferase-deficient mice are protected from diet-induced obesity
Download2010
Kuo, Ming-Shang, Dyck, Jason R. B., Sletten, Torunn, Proctor, Spencer D., Jacobs, René L., Lingrell, Susanne, Cao, Guoqing, Peake, David A., Kennedy, Brian P., Zhao, Yang, Vance, Dennis E., Koonen, Debby P. Y., Su, Brian
Phosphatidylcholine (PC) is synthesized from choline via the CDP-choline pathway. Liver cells can also synthesize PC via the sequential methylation of phosphatidylethanolamine, catalyzed by phosphatidylethanolamine N-methyltransferase (PEMT). The current study investigates whether or not hepatic...
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2012
Wan, Zhongxiao, MacDonald, Tara, Wright, David C., Holloway, Graham P., Chan, Catherine B., Perry, Christopher G.
Background Adipose tissue mitochondria have been implicated as key mediators of systemic metabolism. We have shown that IL-6 activates AMPK, a mediator of mitochondrial biogenesis, in adipose tissue; however, IL-6−/− mice fed a high fat diet have been reported to develop insulin resistance. These...
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IL-6 indirectly modulates the induction of glyceroneogenic enzmes in adipose tissue during exercise
Download2012
Wan, Zhongxiao, Beaudoin, Marie-Soleil, Castellani, Laura, Wright, David C., Ritchie, Ian, Chan, Catherine B.
Background Glyceroneogenesis is an important step in the control of fatty acid re-esterification with PEPCK and PDK4 being identified as key enzymes in this process. We have previously shown that glyceroneogenic enzymes such as PDK4 are rapidly induced in white adipose tissue during exercise....
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2012
Wang, Lusheng, Moore, Steve S., Cai, Zhipeng, Goebel, Randy, Lin, Guohui, Wang, Yining, Stothard, Paul
Background Single nucleotide polymorphism (SNP) genotyping assays normally give rise to certain percents of no-calls; the problem becomes severe when the target organisms, such as cattle, do not have a high resolution genomic sequence. Missing SNP genotypes, when related to target traits, would...
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Altered microRNA expression in bovine subcutaneous and visceral adipose tissues from cattle under different diet
Download2012
Guan, Leluo, Romao, Josue M., McAllister, Tim, He, Maolong, Jin, Weiwu
Background MicroRNAs (miRNAs) are a class of molecular regulators found to participate in numerous biological processes, including adipogenesis in mammals. This study aimed to evaluate the differences of miRNA expression between bovine subcutaneous (backfat) and visceral fat depots (perirenal...
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Reducing GHG emissions through genetic improvement for feed efficiency: Effects on economically important traits and enteric methane production
Download2013
Baron, Vern S., Ominski, Kim H., Guan, Leluo, Basarab, John A., Beauchemin, Karen A., Miller, Stephen P.
Genetic selection for residual feed intake (RFI) is an indirect approach for reducing enteric methane (CH4) emissions in beef and dairy cattle. RFI is moderately heritable (0.26 to 0.43), moderately repeatable across diets (0.33 to 0.67) and independent of body size and production, and when...
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Elucidation of molecular mechanisms of physiological variations between bovine subcutaneous and visceral fat depots under different nutritional regimes
Download2013
Jin, Weiwu, He, Maolong, Guan, Leluo, Romao, Josue M., McAllister, Tim
Adipose tissue plays a critical role in energy homeostasis and metabolism. There is sparse understanding of the molecular regulation at the protein level of bovine adipose tissues, especially within different fat depots under different nutritional regimes. The objective of this study was to...