Refined cottonseed oil as a replacement for soybean oil in broiler diet.

Ao Yang,Shahid Ali Rajput,Ming Qi,Shuai Wang,Xin Gao,Luoyi Zhu,Yongzhi Duan,Lvhui Sun,Niya Zhang,Desheng Qi,Xu Wang

doi:10.1002/fsn3.933

Ao Yang, Shahid Ali Rajput + Show 9 more

Open Access

https://doi.org/10.1002/fsn3.933

Copy DOI

Abstract

With the shortage of common vegetable fat sources, such as soybean oil (SBO), it is urgent to find alternative oil sources for broiler producers. The objective of this study was to evaluate the potential of refined cottonseed oil (CSO) as a replacement for SBO in broiler diets. A total of 180 chickens at 1 d of age were randomly assigned to five treatments of six replicates. One treatment was the basal diet (control), and the other four experimental diets were formulated from the basal diet by replacing (w/w) 25%, 50%, 75%, and 100% of the SBO with refined CSO (only containing 0.2% cyclopropenoid fatty acids, and no free gossypol was detected). At the end of week 6, blood samples were obtained from the jugular vein and the breast muscle was aseptically isolated from two birds per replicate. The results showed that substitution of CSO for low‐level SBO had no significant effect (p > 0.05) on broiler performance during the starter period (week 1–3), while 50% level of CSO inclusion significantly increased (p < 0.05) ADG and improved FCR compared with the control group during the finisher period (week 4–6). Broilers fed 100% CSO diets had lower (p < 0.05) levels of serum total protein (TP), albumin (ALB), cholesterol (CHO) concentrations, and serum alkaline phosphatase (AKP) activity than that of the control broilers. Furthermore, the serum antioxidant status appeared to be enhanced by CSO. Additionally, high levels of CSO (75 and 100%) significantly increased the proportions of C14:0 and C18:0 but decreased the proportions of C18:1n9t, C18:2n6c, and ∑ n‐6 polyunsaturated fatty acids in breast muscles of broilers. Overall, the SBO could be replaced with refined CSO up to 50% in diets for broilers without adversely affecting the performance, liver functions, and breast muscle fatty acid composition of these broilers.

Highlights

Poultry meat is often preferred over other meats mainly due to its low lipid content and relatively high content of polyunsaturated fatty acids (PUFA) (Nkukwana et al, 2014)
We investigated the effects of refined cottonseed oil (CSO) dietary supplementation on growth performance, serum biochemistry, and antioxidant status, as well as fatty acid profile of breast muscle in broilers
Cottonseed oil has been considered a potential substitute for soybean oil (SBO) or corn oil in broiler diets because of their more accessible availability, similar metabolizable energy with SBO, and high concentrations of unsaturated fatty acids

Summary

| INTRODUCTION

Poultry meat is often preferred over other meats mainly due to its low lipid content and relatively high content of polyunsaturated fatty acids (PUFA) (Nkukwana et al, 2014). 1965; Ralaimanarivo, Gaydou, & Bianchini, 1982; Vickery, 1980), and their presence in cottonseed oil has caused many deleterious biological effects when fed to animals, such as pink white and associated defects in eggs, depression of egg production, and so on (Phelps et al, 1965; Shenstone, Vickery, & Johnson, 1965). Among these biological effects on animals, the most significant effect it caused must be altering fatty acid profile in animal tissues. We looked forward to explore which adverse effects would be caused on the broilers when fed CSO contained CPFAs and evaluated the potential of refined CSO as a replacement for SBO in broiler diets

| MATERIALS AND METHODS

| DISCUSSION

Findings

| CONCLUSIONS