Development of intramuscular fat adipocytes in Bos taurus genotypes

In: Energy and protein metabolism and nutrition
Authors:
M.J. McPhee NSW Department of Primary Industries, Armidale Livestock Industries Centre, University of New England, Armidale, NSW 2351, Australia.

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J.P. Siddell NSW Department of Primary Industries, Armidale Livestock Industries Centre, University of New England, Armidale, NSW 2351, Australia.

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B.J. Walmsley NSW Department of Primary Industries, Armidale Livestock Industries Centre, University of New England, Armidale, NSW 2351, Australia.
Animal Genetics and Breeding Unit, University of New England, Armidale, NSW 2351, Australia.

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V.H. Oddy NSW Department of Primary Industries, Armidale Livestock Industries Centre, University of New England, Armidale, NSW 2351, Australia.

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S. Harden NSW Department of Primary Industries, Tamworth, NSW 2340, Australia.

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R. Woodgate NSW Department of Primary Industries, Armidale Livestock Industries Centre, University of New England, Armidale, NSW 2351, Australia.

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D.W. Pethick School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA 6150, Australia.

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P.L. Greenwood NSW Department of Primary Industries, Armidale Livestock Industries Centre, University of New England, Armidale, NSW 2351, Australia.

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Type:
Chapter
Pages:
379–381
DOI:
https://doi.org/10.3920/978-90-8686-891-9_114

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This preliminary study quantified the size and number of adipocytes within Longissimus lumborum intramuscular fat across 5 postnatal stages of growth and 2 post-weaning forage-based feeding systems in Bos taurus genotypes selected to differ in their fat distribution. No differences (P>0.05) in size or number of adipocytes due to feeding system were evident. Adipocyte size was lower (P<0.05) for Hereford than Angus and Wagyu × Angus steers. Overall, number of adipocytes for Hereford was lower than for the other genotypes, although did not differ significantly (P>0.05) within each stage of growth. Stage of growth affected size and number of adipocytes (P<0.05).

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Series:  EAAP Scientific Series, Volume: 138
Cover Energy and protein metabolism and nutrition
E-Book ISBN:
9789086868919
Publisher:
Wageningen Academic
Print Publication Date:
09 Sep 2019
Front Matter
Several roads lead to Rome: about improving nitrogen efficiency in cattle
Utilization of protein-bound or crystalline amino acids for protein deposition, growth and carcass composition of growing pigs in relation to sustainable production
Ex-food in animal nutrition: potentials and challenges
Regulation of growth and development of skeletal muscle and adipocytes and its impact on efficiency and meat quality
Nutritional regulation of mitochondrial ROS production of chickens exposed to acute and chronic heat stress
Estimating digestible and metabolizable energy concentrations of ruminant diets
Nutrient requirements of beef cattle in tropical climates
Nutrient requirements of broiler chickens and growing pigs in tropical climates
Part 1. Sustainable protein and energy utilization
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Part 2. Feeds, processing, and additives
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Part 3. Energy and potein metabolism: ruminants
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Part 4. Protein and energy metabolism: monogastric
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Part 5. Heat stress and sanitary challenge impacts on energy and protein metabolism
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Part 6. Signalling and regulation of energy and protein metabolism
The cost of the conversion of L-methionine precursors in mammals and birds
Effect of immunocastration and dietary protein on plasma metabolites and hormone concentrations of Iberian pigs
Milk protein – more than just amino acids? A study on growth and growth biomarkers in piglets
Dynamics of thermal heat acclimatization in force-fed ducks
In-vivo intramuscular collagen turnover in Pectoralis major in two broiler strains in relation to woody breast myopathy
Castration and maturity effects on muscle proteome profile
Gene expression in muscle and adipose tissue of steers classed as Choice or Standard
Impact of dietary protein levels on adrenaline sensitivity of beef cattle
Impact of dietary potassium levels on muscle glycogen concentration
Effects of maternal and direct polyphenol intake on hepatic gene expression in lambs and kids
Effect of a grazing event in mRNA expression of genes involved in energy metabolism in dairy cows
Mammary gland amino acid affinity in response to different levels of dietary protein and insulin
Mammary gland amino acid flux for lactating dairy cows in response to hyperinsulinemia and dietary protein
Part 7. Methodological aspects of research on protein and energy metabolism and nutrition
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Part 8. Animal nutrition modeling
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Back Matter

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