PMID- 36172615
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220930
IS  - 2297-1769 (Print)
IS  - 2297-1769 (Electronic)
IS  - 2297-1769 (Linking)
VI  - 9
DP  - 2022
TI  - Fortification of diets with omega-3 long-chain polyunsaturated fatty acids 
      enhances feedlot performance, intramuscular fat content, fat melting point, and 
      carcass characteristics of Tattykeel Australian White MARGRA lambs.
PG  - 933038
LID - 10.3389/fvets.2022.933038 [doi]
LID - 933038
AB  - Meat eating quality indices such as intramuscular fat content (IMF) and fat 
      melting point (FMP) of the Longissimus thoracis et lumborum muscle and the 
      feedlot performance, carcass traits, and commercial wholesale cuts of lot-fed 
      Tattykeel Australian White (TAW) MARGRA lambs as a result of dietary 
      fortification of the diet with omega-3 long-chain polyunsaturated fatty acids 
      (n-3 LC-PUFA) were evaluated. A total of 75 TAW MARGRA lambs at 6 months of age 
      with an average liveweight of 30 +/- 1.2 kg were used. The lambs were randomly 
      allocated to the following three dietary treatments of 25 lambs each in a 47-day 
      feeding trial using a completely randomized experimental design: (1) control diet 
      of hay plus pellets without omega-3 oil, (2) hay plus commercial whole grain 
      pellets (MSM) without omega-3 oil, and (3) hay plus pellets fortified with 
      omega-3 oil. It was hypothesized that dietary supplementation with omega-3 
      fortified pellets will improve feedlot performance, meat-eating quality indices 
      of IMF, FMP, and carcass characteristics. Lot-fed lambs on the MSM whole grain 
      had the highest feed intake of 1.69 kg/day, followed by the control at 1.57 
      kg/day and the lowest in the omega-3 diet at 1.01 kg/day (p = 0.0001). However, 
      the omega-3 diet had the highest average daily gain of 230 g/head/day (p = 
      0.0001), indicating the greatest feed efficiency since it had the best growth 
      response with minimal feed intake. Post-slaughter evaluation of the Longissimus 
      thoracis et lumborum muscle revealed significant treatment variations in IMF (p = 
      0.0001), FMP (p = 0.0001), pH (p = 0.0380), and wholesale French rack primal cut 
      (p = 0.0001). Strong correlations (p < 0.05) between liveweight, temperature, pH, 
      FMP, and IMF were observed. Similarly, significant correlations between carcass 
      characteristics of total saleable meat yield, lean trim, fat trims, bones, and 
      leg shank were evident (p < 0.05). However, there were no treatment differences 
      in the final liveweight, GR fat depth, hot standard carcass weight, or dressing 
      percentage. The findings indicate that feedlot performance, meat-eating quality 
      traits such as IMF and FMP, and commercial wholesale French rack cuts can be 
      further improved during feedlot finishing of TAW MARGRA lambs through dietary 
      supplementation with omega-3 oils, and hence the tested hypothesis of improved 
      meat quality attributes is partially confirmed.
CI  - Copyright (c) 2022 Pewan, Otto, Kinobe, Adegboye and Malau-Aduli.
FAU - Pewan, Shedrach Benjamin
AU  - Pewan SB
AD  - Animal Genetics and Nutrition, Veterinary Sciences Discipline, College of Public 
      Health, Medical and Veterinary Sciences, Division of Tropical Health and 
      Medicine, James Cook University, Townsville, QLD, Australia.
AD  - National Veterinary Research Institute, Vom, Plateau State, Nigeria.
FAU - Otto, John Roger
AU  - Otto JR
AD  - Animal Genetics and Nutrition, Veterinary Sciences Discipline, College of Public 
      Health, Medical and Veterinary Sciences, Division of Tropical Health and 
      Medicine, James Cook University, Townsville, QLD, Australia.
FAU - Kinobe, Robert Tumwesigye
AU  - Kinobe RT
AD  - Animal Genetics and Nutrition, Veterinary Sciences Discipline, College of Public 
      Health, Medical and Veterinary Sciences, Division of Tropical Health and 
      Medicine, James Cook University, Townsville, QLD, Australia.
FAU - Adegboye, Oyelola Abdulwasiu
AU  - Adegboye OA
AD  - Public Health and Tropical Medicine Discipline, College of Public Health, Medical 
      and Veterinary Sciences, Division of Tropical Health and Medicine, James Cook 
      University, Townsville, QLD, Australia.
FAU - Malau-Aduli, Aduli Enoch Othniel
AU  - Malau-Aduli AEO
AD  - Animal Genetics and Nutrition, Veterinary Sciences Discipline, College of Public 
      Health, Medical and Veterinary Sciences, Division of Tropical Health and 
      Medicine, James Cook University, Townsville, QLD, Australia.
LA  - eng
PT  - Journal Article
DEP - 20220912
PL  - Switzerland
TA  - Front Vet Sci
JT  - Frontiers in veterinary science
JID - 101666658
PMC - PMC9510752
OTO - NOTNLM
OT  - MARGRA lamb
OT  - fat melting point
OT  - intramuscular fat
OT  - meat eating quality
OT  - omega-3 fatty acids
OT  - wholesale primal cuts
COIS- The authors declare that the research was conducted in the absence of any 
      commercial or financial relationships that could be construed as a potential 
      conflict of interest.
EDAT- 2022/09/30 06:00
MHDA- 2022/09/30 06:01
PMCR- 2022/01/01
CRDT- 2022/09/29 02:23
PHST- 2022/04/30 00:00 [received]
PHST- 2022/08/22 00:00 [accepted]
PHST- 2022/09/29 02:23 [entrez]
PHST- 2022/09/30 06:00 [pubmed]
PHST- 2022/09/30 06:01 [medline]
PHST- 2022/01/01 00:00 [pmc-release]
AID - 10.3389/fvets.2022.933038 [doi]
PST - epublish
SO  - Front Vet Sci. 2022 Sep 12;9:933038. doi: 10.3389/fvets.2022.933038. eCollection 
      2022.