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. 2020 Feb;100(3):1311-1319.
doi: 10.1002/jsfa.10146. Epub 2019 Dec 5.

Dietary supplementation with pioglitazone hydrochloride and chromium methionine manipulates lipid metabolism with related genes to improve the intramuscular fat and fatty acid profile of yellow-feathered chickens

Cheng-Long Jin  1 , Huan-Ren Zeng  1 , Chun-Qi Gao  1 , Hui-Chao Yan  1 , Hui-Ze Tan  2 , Xiu-Qi Wang  1
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Dietary supplementation with pioglitazone hydrochloride and chromium methionine manipulates lipid metabolism with related genes to improve the intramuscular fat and fatty acid profile of yellow-feathered chickens

Cheng-Long Jin et al. J Sci Food Agric. 2020 Feb.

Abstract

Background: Intramuscular fat (IMF) and polyunsaturated fatty acids (PUFAs) have been thought to play a crucial role in improving meat quality. Considering the ability of pioglitazone hydrochloride (PGZ) to deposit fat, and the anti-stress capability of chromium methionine (CrMet), we combined these compounds to produce higher quality meat in poultry. A total of 3000 female chickens were divided into four groups (five replicates, each with 150 chickens): control, control plus15 mg·kg-1 PGZ, control plus 200 μg·kg-1 CrMet, and control plus15 mg·kg-1 PGZ plus 200 μg·kg-1 CrMet. The experiment lasted for 28 days.

Results: Compared to the control group and the PGZ group, the average daily gain (ADG) was significantly increased in the PGZ plus CrMet group, whereas the feed-to-gain ratio (F/G) was decreased from 0 to 14 days. Meanwhile, the redness value of breast muscle and IMF of thigh muscle increased in the PGZ plus CrMet group compared with the control group and these detections in the PGZ plus CrMet group exhibited highest value among the four groups. The cooking loss decreased in the breast muscle and thigh muscle after PGZ combined with CrMet in diets. The percentages of C16:1, C18:2n-6 and PUFAs increased in the PGZ plus CrMet group. The mRNA abundance of peroxisome proliferator activated receptor (PPAR) γ, PPAR coactivator 1 α, and fatty acid binding protein 3 was significantly enhanced with PGZ plus CrMet supplementation.

Conclusion: Collectively, dietary supplementation with PGZ plus CrMet improved growth performance and meat quality by decreasing the cooking loss and increasing the IMF and PUFA levels. © 2019 Society of Chemical Industry.

Keywords: chromium methionine; growth performance; meat quality; pioglitazone hydrochloride; yellow-feathered chickens.

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