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

Primiparous Santa Gertrudis heifers were used to evaluate the effects of gestational dietary protein content on meat quality traits of 20month old bull progeny (n=40). At −60d before AI, heifers were randomly allocated to HIGH or LOW protein diet (HPERI and LPERI). From 24dpc, half of each treatment...

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Bibliographic Details
Published in:Meat science 2016-11, Vol.121, p.141-147
Main Authors: Alvarenga, Tharcilla I.R.C., Copping, Katrina J., Han, Xuemei, Clayton, Edward H., Meyer, Richard J., Rodgers, Raymond J., McMillen, I. Caroline, Perry, Viv E.A., Geesink, Geert
Format: Article
Language:English
Subjects:
Adipose Tissue - chemistry
Animal Feed - analysis
Animal Nutritional Physiological Phenomena
Animals
Cattle
Collagen
Collagen - chemistry
Color
Cooking
Desmin - metabolism
Diet - veterinary
Dietary Fats - analysis
Dietary Proteins - administration & dosage
Fatty acid
Fatty Acids, Unsaturated - analysis
Female
Fiber type
Food Quality
Hydrogen-Ion Concentration
Male
Maternal nutrition
Meat
Muscle Proteins - chemistry
Muscle, Skeletal - chemistry
Phenotype
Post mortem proteolysis
Pregnancy
Pregnancy, Animal
Red Meat - analysis
Sarcomeres - chemistry
Tenderness
Troponin T - metabolism
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Summary:Primiparous Santa Gertrudis heifers were used to evaluate the effects of gestational dietary protein content on meat quality traits of 20month old bull progeny (n=40). At −60d before AI, heifers were randomly allocated to HIGH or LOW protein diet (HPERI and LPERI). From 24dpc, 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).
ISSN:0309-1740
1873-4138
DOI:10.1016/j.meatsci.2016.06.006