Effects of Dietary Plant Essential Oil and Acidifier Combination on Growth Performance, Intestinal Health and Meat Quality of Mahuang Broilers

ZENG Ziyou; GOU Qingbi; GU Changsong; HUANG Lirong; LI Bin; MU Yuyun; TAN Quan; LI Peng; FU Xiangkui; ZHU Zhengpeng

doi:10.3969/j.issn.1006-267x.2021.06.026

2021 , Vol. 33 >Issue 6: 3237 - 3249

DOI: https://doi.org/10.3969/j.issn.1006-267x.2021.06.026

POULTRY NUTRITION AND FEED

Effects of Dietary Plant Essential Oil and Acidifier Combination on Growth Performance, Intestinal Health and Meat Quality of Mahuang Broilers

ZENG Ziyou ,
GOU Qingbi ,
GU Changsong ,
HUANG Lirong ,
LI Bin ,
MU Yuyun ,
TAN Quan ,
LI Peng ,
FU Xiangkui ,
ZHU Zhengpeng

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1. Sichuan TEK-MAX Biotechnology Co., Ltd., Chengdu 610000, China;
2. Sichuan Tequ Agriculture and Animal Husbandry Technology Group Co., Ltd., Chengdu 610207, China;
3. School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621000, China;
4. Novus International Trading(Shanghai) Co., Ltd., Shanghai 200080, China;
5. Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China

Received date: 2020-11-24

Online published: 2021-06-10

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Abstract

The objective of this study was to investigate the effects of dietary plant essential oil and acidifier combination on growth performance, immune organ index, intestinal health and meat quality of Mahuang broilers. A total of 630 Mahuang female broilers of one-day-old were randomly divided into 3 groups with 7 replicates in each group and 30 broilers in each replicate. Broilers in the control group were fed a basal diet, those in the antibiotics group were fed the basal diet supplemented with 15 mg/kg bacitracin methylene disalicylate+20 mg/kg avilamycin, and those in the plant essential oil+acidifier group (EOA group) were fed the basal diet supplemented with 15 g/t plant essential oil+250 g/t acidifier, respectively. The trail lasted for 84 days and was divided into four growth stages which were 1 to 21 days of age, 22 to 42 days of age, 43 to 63 days of age and 64 to 84 days of age. The results showed as follows:1) during the whole trial period (1 to 84 days of age), the final body weight of broilers in EOA group was significantly higher than that in the control group (P<0.05). From 1 to 21 days of age, the final body weight of broilers in EOA group was significantly lower than that in the control group and the antibiotics group (P<0.05), and the average daily weight gain was significantly lower than that in the antibiotics group (P<0.05). From 22 to 42 days of age, compared with the control group, the feed to gain ratio in EOA group was significantly decreased (P<0.05). From 43 to 63 days of age, the final body weight and the average daily feed intake of broilers in EOA group were significantly lower than that in the antibiotics group (P<0.05). 2) At 21 days of age, the bursa of Fabricius index of broilers in EOA group was significantly higher than that in the control group (P<0.05). At 42 days of age, the bursa of Fabricius index of broilers in EOA group was significantly higher than that in the antibiotics group (P<0.05). 3) At 21 and 42 days of age, compared with the control group, the crypt depth in jejunum of broilers in EOA group was significantly decreased and the villus height to crypt depth ratio (V/C) was significantly increased (P<0.05). In addition, at 42 days of age, the crypt depth and V/C in jejunum of broilers in EOA group were significantly better than those in the antibiotics group (P<0.05). 4) At 63 days of age, compared with the control group, the shear force in breast muscle of broilers in EOA group was significantly decreased (P<0.05), and the yellowness in breast muscle at 24 h after slaughter was significantly increased (P<0.05). At 84 days of age, the cooking loss in breast muscle of broilers in EOA group was significantly lower than that in the other two groups (P<0.05). At 63 days of age, compared with the control group, the shear force in leg muscle of broilers in EOA group was significantly decreased (P<0.05), and the drip loss in leg muscle was significantly lower than that in the antibiotics group (P<0.05). At 84 days of age, compared with the control group, the shear force, lightness at 24 h after slaughter and cooking loss in leg muscle of broilers in EOA group were significantly decreased (P<0.05), the redness and pH at 45 min after slaughter in leg muscle were significantly (P<0.05), and the lightness at 45 min after slaughter in leg muscle was significantly increased compared with the antibiotics group (P<0.05). In summary, dietary plant essential oil and acidifier combination can improve the growth performance, immune organ index, jejunal morphology and meat quality of Mahuang broilers.

Key words： Mahuang broilers; plant essential oil; acidifier; growth performance; intestinal health; meat quality

Cite this article

ZENG Ziyou , GOU Qingbi , GU Changsong , HUANG Lirong , LI Bin , MU Yuyun , TAN Quan , LI Peng , FU Xiangkui , ZHU Zhengpeng . Effects of Dietary Plant Essential Oil and Acidifier Combination on Growth Performance, Intestinal Health and Meat Quality of Mahuang Broilers[J]. Chinese Journal of Animal Nutrition, 2021 , 33(6) : 3237 -3249 . DOI: 10.3969/j.issn.1006-267x.2021.06.026

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