Effects of Dietary Sodium Acetate on Growth Performance, Slaughter Performance, Meat Quality and Serum Biochemical Indices of White-Feathered Broilers

QIN Kunpeng; YANG Tao; WANG Yongfang; ZHAO Yurong

doi:10.3969/j.issn.1006-267x.2022.07.027

2022 , Vol. 34 >Issue 7: 4359 - 4368

DOI: https://doi.org/10.3969/j.issn.1006-267x.2022.07.027

RESEARCH PAPER

Effects of Dietary Sodium Acetate on Growth Performance, Slaughter Performance, Meat Quality and Serum Biochemical Indices of White-Feathered Broilers

QIN Kunpeng ,
YANG Tao ,
WANG Yongfang ,
ZHAO Yurong

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College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China

Received date: 2021-12-15

Online published: 2022-07-14

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Abstract

This experiment was conducted to investigate the effects of different dietary sodium acetate levels on growth performance, slaughter performance, meat quality and serum biochemical indices of white-feathered broilers. A total of 288 healthy Ross 308 white-feathered broilers of 7-day-old with similar body weight were randomly divided into 6 groups with 6 replicates per group and 8 broilers per replicate in a single-factor completely randomized design. Broilers in each group were fed a basal diet (control group) and the basal diet supplemented with different levels of sodium acetate (0.1%, 0.2%, 0.3%, 0.4% and 0.5%), respectively. The experiment lasted for 35 days. The results showed as follows:1) there were no significant differences in average daily gain, average daily feed intake and feed to gain ratio of white-feathered broilers among all groups (P>0.05). 2) There were no significant differences in dressed rate, half-eviscerated rate, all eviscerated rate, breast muscle rate and leg muscle rate of white-feathered broilers among all groups (P>0.05). 3) There were no significant differences in the brightness (L^*) and yellowness (b^*) values of breast muscle, drop loss at 24 and 48 h and pH at 24 h (pH_{24 h}) after slaughter among all groups (P>0.05). However, the pH of breast muscle at 45 min (pH_{45 min}) after slaughter in 0.2%, 0.4% and 0.5% sodium acetate supplemental groups was significantly lower than that in the control group (P<0.05), and the pH_{45 min} in breast muscle in 0.1% and 0.3% sodium acetate supplemental groups had no significant difference compared with the control group (P>0.05). The redness (a^*) value of breast muscle in 0.1%, 0.2%, 0.3% and 0.5% sodium acetate supplemental groups was significantly higher than that in the control group (P<0.05), while there was no significant difference in a^* value of breast muscle in 0.4% sodium acetate supplemental group compared with the control group (P>0.05). The water-holding capacity of breast muscle in 0.3%, 0.4% and 0.5% sodium acetate supplemental groups was significantly higher than that in the control group (P<0.05), while there was no significant difference in the water-holding capacity of breast muscle in 0.1% and 0.2% sodium acetate supplemental groups compared with the control group (P>0.05). 4) There were no significant differences in leg muscle pH_{45 min}, pH_{24 h}, values of L^*, a^* and b^*, and drip loss at 24 and 48 h among all groups (P>0.05). The water-holding capacity of leg muscle in 0.3%, 0.4% and 0.5% sodium acetate supplemental groups was significantly higher than that in the control group (P<0.05), while there was no significant difference in leg muscle water-holding capacity in 0.1% and 0.2% sodium acetate supplemental groups compared with the control group (P>0.05). 5) There were no significant differences in serum glucose (GLU) content and aspartate aminotransferase (AST) activity among all groups (P>0.05). The serum triglyceride (TG) content in 0.4% and 0.5% sodium acetate supplemental groups was significantly higher than that in the control group (P<0.05), while there was no significant difference in serum TG content in 0.1%, 0.2% and 0.3% sodium acetate supplemental groups compared with the control group (P>0.05). The serum total cholesterol (TC) content in 0.1%, 0.2%, 0.4% and 0.5% sodium acetate supplemental groups was significantly higher than that in the control group (P<0.05), while there was no significant difference in serum TC content in 0.3% sodium acetate supplemental group compared with the control group (P>0.05). The serum low-density lipoprotein cholesterol (LDL-C) content in 0.1%, 0.2%, 0.3%, 0.4% and 0.5% sodium acetate supplemental groups was significantly higher than that in the control group (P<0.05). The serum high-density lipoprotein cholesterol (HDL-C) content in 0.2%, 0.4% and 0.5% sodium acetate supplemental groups was significantly higher than that in the control group (P<0.05), while the serum HDL-C content in 0.1% and 0.3% sodium acetate supplemental groups was not significantly different from that in the control group (P>0.05). The serum alanine aminotransferase (ALT) activity in 0.4% and 0.5% sodium acetate supplemental groups was significantly higher than that in the control group (P<0.05), while there was no significant difference in ALT activity in 0.1%, 0.2% and 0.3% sodium acetate supplemental groups compared with the control group (P>0.05). In conclusion, dietary sodium acetate has no significant effects on growth performance and slaughter performance of white-feathered broilers, but has significant effects on meat quality and serum biochemical indices. The appropriate supplemental level of sodium acetate can improve muscle a^* value and water-holding capacity to a certain extent, but excessive addition will lead to the rise of blood lipids and liver damage. Under the conditions of this experiment, the optimal dietary sodium acetate supplemental level for white-feathered broilers is 0.3%.

Key words： sodium acetate; white-feathered broilers; growth performance; slaughter performance; meat quality; serum biochemical indices

Cite this article

QIN Kunpeng , YANG Tao , WANG Yongfang , ZHAO Yurong . Effects of Dietary Sodium Acetate on Growth Performance, Slaughter Performance, Meat Quality and Serum Biochemical Indices of White-Feathered Broilers[J]. Chinese Journal of Animal Nutrition, 2022 , 34(7) : 4359 -4368 . DOI: 10.3969/j.issn.1006-267x.2022.07.027

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