PMID- 33751983
OWN - NLM
STAT- MEDLINE
DCOM- 20210902
LR  - 20210902
IS  - 1873-4138 (Electronic)
IS  - 0309-1740 (Linking)
VI  - 177
DP  - 2021 Jul
TI  - Effects backgrounding-finishing programs of different age/weight at harvest of 
      feedlot steers.
PG  - 108493
LID - S0309-1740(21)00069-3 [pii]
LID - 10.1016/j.meatsci.2021.108493 [doi]
AB  - Four ages at harvest (HA: A15, A18, A24 and A30 for 15, 18, 24 and 30 months, 
      respectively) were compared in performance, carcass and meat traits of feedlot 
      finished steers over a 123-day period. Three meat aging periods (postmortem days: 
      2, 7 and 14) were imposed on a longissimus thoracis muscle (LM) section of each 
      left carcass. Feed efficiency (FE) was greater (P </= 0.02) for A15 and A18. 
      Treatment A30 had the lowest FE (P </= 0.02). The LM area was largest for A30, but 
      no different (P = 0.15) from A24. Intramuscular fat was lowest (P < 0.01) for 
      A15. No differences were detected (P >/= 0.11) among the A18, A24 and A30. 
      Treatment A30 had the highest rib fat thickness (P </= 0.02) and WBsf values. No 
      differences were detected (P >/= 0.25) in WBSf between A15, A18 and A24 after any 
      aging period. Results suggested A24 as a threshold for carcass and meat traits.
CI  - Copyright (c) 2021. Published by Elsevier Ltd.
FAU - Pordomingo, Anibal J
AU  - Pordomingo AJ
AD  - Estacion Experimental "Guillermo Covas" de INTA Anguil, CC 11, km 580 ruta nac. 
      5, La Pampa 6326, Argentina; Facultad de Ciencias Veterinarias, Universidad 
      Nacional de La Pampa, 6300 La Pampa, Argentina. Electronic address: 
      pordomingo.anibal@inta.gob.ar.
FAU - Pordomingo, Adriana B
AU  - Pordomingo AB
AD  - Estacion Experimental "Guillermo Covas" de INTA Anguil, CC 11, km 580 ruta nac. 
      5, La Pampa 6326, Argentina; Facultad de Ciencias Exactas y Naturales, 
      Universidad Nacional de La Pampa, 6300 La Pampa, Argentina.
LA  - eng
PT  - Journal Article
DEP - 20210313
PL  - England
TA  - Meat Sci
JT  - Meat science
JID - 101160862
SB  - IM
MH  - Adipose Tissue
MH  - *Age Factors
MH  - Animal Husbandry/*methods
MH  - Animals
MH  - Body Composition
MH  - *Body Weight
MH  - Cattle
MH  - Food Handling/methods
MH  - Male
MH  - Muscle, Skeletal/anatomy & histology
MH  - Red Meat/*analysis
MH  - Shear Strength
OTO - NOTNLM
OT  - Beef cattle
OT  - Feedlot finishing
OT  - Feedlot performance
OT  - Meat traits
OT  - Slaughter age
EDAT- 2021/03/23 06:00
MHDA- 2021/09/03 06:00
CRDT- 2021/03/22 20:13
PHST- 2020/09/14 00:00 [received]
PHST- 2021/02/16 00:00 [revised]
PHST- 2021/03/10 00:00 [accepted]
PHST- 2021/03/23 06:00 [pubmed]
PHST- 2021/09/03 06:00 [medline]
PHST- 2021/03/22 20:13 [entrez]
AID - S0309-1740(21)00069-3 [pii]
AID - 10.1016/j.meatsci.2021.108493 [doi]
PST - ppublish
SO  - Meat Sci. 2021 Jul;177:108493. doi: 10.1016/j.meatsci.2021.108493. Epub 2021 Mar 
      13.