Tropical Animal Health and Production

, Volume 47, Issue 5, pp 883–887 | Cite as

Effects of processing corn on the carcass traits and meat quality of feedlot lambs

  • Letícia Silva Oliveira
  • Madeline Rezende Mazon
  • Roberta Ferreira Carvalho
  • Domingos Marcelo Cenachi Pesce
  • Saulo Da Luz E Silva
  • Sarita Bonagurio Gallo
  • Paulo Roberto Leme
Regular Articles
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Abstract

The objectives of this study were to evaluate and compare the effect of the corn grain processing (whole grain, dry beans ground, and wet grain) on carcass characteristics and meat quality in lambs. Twenty-two Dorper vs. Santa Inês uncastrated lambs (27 ± 4 kg BW; ±3 months old) were distributed in a randomized complete block (initial BW). The diets were composed of 20 % protein-mineral pellet, 5 % hay, and 75 % corn in the form of whole grain, ground grain, or wet grain. The harvest weight of animals fed whole corn (50.2 kg) and ground (49.03 kg) were equal and higher than the moisture corn fed lambs (44.89 kg); therefore, the same differences were expected to be seen in the cold vs hot carcass comparison. However, there was no difference between treatments comparing hot or cold carcass performance, averaging 47 and 46 %, respectively. Also unaffected by the treatments were subcutaneous fat thickness values, loin muscle area, pH, temperature, drip loss, water loss by cooking, color, and tenderness. It can be concluded that the shape and size of corn grain in diets of high concentrate resulted in no measurable influence on carcass traits, but whole grain is more easily managed by the producer.

Keywords

Carcass lambs Energy diet High-moisture corn Protein pellet Whole corn 
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Notes

Statement of animal right

Research Ethics Committee - Animal Area

USP process number: 2011.1.929.74.6

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  • Letícia Silva Oliveira
    • 1
  • Madeline Rezende Mazon
    • 1
  • Roberta Ferreira Carvalho
    • 1
  • Domingos Marcelo Cenachi Pesce
    • 2
  • Saulo Da Luz E Silva
    • 1
  • Sarita Bonagurio Gallo
    • 1
  • Paulo Roberto Leme
    • 1
  1. 1.Faculty of Animal Science and Food EngineeringSao Paulo UniversityPirassunungaBrazil
  2. 2.Department of Veterinary MedicineCatholical University Pontifical of Minas Gerais campus Poços de CaldasPoços de CaldasBrazil

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