Skip to Content
Merck
  • Effects of pregnancy and feeding level on carcass and meat quality traits of Nellore cows.

Effects of pregnancy and feeding level on carcass and meat quality traits of Nellore cows.

Meat science (2013-02-19)
M S Duarte, M P Gionbelli, P V R Paulino, N V L Serão, L H P Silva, R Mezzomo, M V Dodson, M Du, J R Busboom, S E F Guimarães, S C Valadares Filho
PMID23416625
ABSTRACT

Carcass and meat quality traits of 16 pregnant and 5 non-pregnant cows fed at 1.2 times maintenance and 16 pregnant and 6 non-pregnant fed ad libitum were evaluated. Pregnancy did not affect final body weight (FBW; P=0.0923), cold carcass yield (CCY; P=0.0513), longissimus muscle area (LMA; P=0.8260), rib fat thickness (RFT; P=0.1873) and shear force (WBSF; P=0.9707). A lower FBW (P=0.0028), LMA (P=0.0048) and RFT (P=0.0001) were observed in feed restricted cows. However, no differences were found for CCY (P=0.7243) and WBSF (P=0.0759) among feeding level groups. These data suggests that carcass and meat quality traits are not affected by pregnancy status in Nellore cows. Moreover, although cows experiencing feed restriction did have reduced deposition of subcutaneous fat and lean tissue, there were no major impacts on meat quality traits.

MATERIALS
Product Number
Brand
Product Description
T-005
Supelco
(−)-trans-Δ9-THC solution, 1.0 mg/mL in methanol, ampule of 1 mL, certified reference material, Cerilliant®
S-024
Supelco
HU-210 solution, 100 μg/mL in methanol, ampule of 1 mL, (Spice Cannabinoid), certified reference material, Cerilliant®
T-047
Supelco
(±)-Δ9-THC solution, 100 μg/mL in heptane, ampule of 1 mL, Cerilliant®
H7909
Sigma-Aldrich
HU-210, solid (air sensitive)
T4764
Supelco
Δ9-Tetrahydrocannabinol solution, 1.0 mg/mL in methanol, analytical standard, for drug analysis