The influence of peri-conception and first trimester dietary restriction of protein in cattle on meat quality traits of entire male progeny

Alvarenga, Tharcilla I.R.C. and Copping, Katrina J. and Han, Xuemei and Clayton, Edward H. and Meyer, Richard J. and Rodgers, Raymond J. and McMillen, I. Caroline and Perry, V.E.A. and Geesink, Geert (2016) The influence of peri-conception and first trimester dietary restriction of protein in cattle on meat quality traits of entire male progeny. Meat Science, 121 . pp. 141-147. ISSN 1873-4138

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Abstract

Primiparous Santa Gertrudis heifers were used to evaluate the effects of gestational dietary protein content on meat quality traits of 20 month old bull progeny (n = 40). At − 60 d before AI, heifers were randomly allocated to HIGH or LOW protein diet (HPERI and LPERI). From 24 dpc, half of each treatment group changed to an alternative post-conception HIGH or LOW protein diet (HPOST and LPOST). LPERI and LPOST diets resulted in higher shear force of the semitendinosus muscle than HPERI (P = 0.053) and HPOST (P = 0.003), respectively. Heat-soluble collagen in the semitendinosus muscle was lower (P = 0.019) for LPERI than HPERI. Collagen and tenderness of the longissimus muscle were not affected by dam nutrition (P > 0.05). Color, pH, sarcomere length, cooking loss, compression values, desmin and troponin-T degradation, fiber type, intramuscular fat and polyunsaturated fatty acid content were not affected by dam nutrition during the peri-conception and first trimester gestational period (P > 0.05).

Item Type: Article
Keywords: Maternal nutrition, Tenderness, Collagen, Fiber type, Post mortem proteolysis, Fatty acid
Schools/Departments: University of Nottingham, UK > Faculty of Medicine and Health Sciences > School of Veterinary Medicine and Science
Identification Number: 10.1016/j.meatsci.2016.06.006
Depositing User: Eprints, Support
Date Deposited: 30 Aug 2017 08:34
Last Modified: 30 Aug 2017 08:40
URI: http://eprints.nottingham.ac.uk/id/eprint/45229

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