Abstract
ABSTRACTTwo experiments were conducted to evaluate the effects of expanded diets and phase feeding programmes in growing-finishing pigs. In Exp. 1, a total of 72 pigs (25.88 ± 1.34 kg) were randomly allotted to 3 dietary treatments: (1) unexpanded corn–wheat–soybean meal (CWSBM)-based diets with two-phase feeding programme; (2) expanded CWSBM-based diets with two-phase feeding programme; (3) unexpanded CWSBM-based diets with three-phase feeding programme. During 12–14 weeks and 1–14 weeks, pigs offered the expanded diets had lower feed conversion ratio (FCR) compared with those fed unexpanded diets (P < .05). In Exp. 2, 120 growing pigs (20.51 ± 0.62 kg) were randomly assigned to 3 dietary treatments: (1) unexpanded corn–soybean meal (CSBM)-based diets with two-phase feeding programme; (2) expanded CSBM-based diets with two-phase feeding programme; (3) unexpanded CSBM-based diets with three-phase feeding programme. During 15–17 weeks, pigs fed expanded diets had increased daily gain and decreased FCR compared with those fed unexpanded diet (P < .05). In conclusion, expanded CWSBM- or CSBM-based diets improved growth performance of growing-finishing pigs. Phase feeding programmes did not affect growth performance, carcass characteristics and meat quality in growing-finishing pigs fed CWSBM- or CSBM-based diets.
Highlights
In modern intensive swine production, feed is the single largest expense in swine production (Niemi et al 2010; Renaudeau et al 2013)
The responses of pigs to expanded diets and phase feeding programmes are not always consistent. The objective of these two experiments was to determine the effects of expanded diets and phase feeding programmes on daily gain, daily feed intake, feed conversion ratio (FCR), carcass traits, and meat quality in growing-finishing pigs fed corn–wheat–soybean meal (CWSBM)- or corn–soybean meal (CSBM)-based diets
Effects of expanded CWSBM- and CSBM-based diets and phase feeding programmes on growth performance in growing-finishing pigs are shown in Table 3 and Table 4, respectively
Summary
In modern intensive swine production, feed is the single largest expense in swine production (Niemi et al 2010; Renaudeau et al 2013). In growing-finishing pigs, much attention has been given to maximize pigs’ growth at minimal feeding cost (Pomar et al 2009) Many strategies such as feed processing, exogenous feed additives, and phase feeding programme provide opportunities to improve feed efficiency, growth performance and competitiveness of swine production (de Langea et al 2010; Jezierny et al 2010; NRC 2012; Zeng et al 2015; Rojas and Stein 2016; Lee et al 2017; Yun et al 2018). The objective of these two experiments was to determine the effects of expanded diets and phase feeding programmes on daily gain, daily feed intake, feed conversion ratio (FCR), carcass traits, and meat quality in growing-finishing pigs fed corn–wheat–soybean meal (CWSBM)- or corn–soybean meal (CSBM)-based diets
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
