PMID- 34258439 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240402 IS - 2405-6383 (Electronic) IS - 2405-6545 (Print) IS - 2405-6383 (Linking) VI - 7 IP - 2 DP - 2021 Jun TI - Net energy, energy utilization, and nitrogen and energy balance affected by dietary pea supplementation in broilers. PG - 506-511 LID - 10.1016/j.aninu.2020.06.012 [doi] AB - Pea starch consists predominantly of C-type of amylopectin chain which is more resistant to digestive enzymes than A-type of starch thus slowly digested in poultry. It was hypothesized that the presence of slowly digested pea starch in broiler diets will increase net energy and the efficiency of energy utilization in broilers. Two experiments were performed to investigate starch digestibility of pea at different incubation times (in vitro study) and the effect of dietary pea on heat increment and net energy in broilers using an open-circuit respiratory calorimetry system (in vivo study). One-day-old Ross 308 male broilers were fed a common starter crumble from d 1 to 10 and standard grower diets thereafter. At d 21, birds were transferred to the chambers each housing 2 birds. Each treatment was replicated 6 times with 2 identical runs of 3 replicates per treatment. A wheat-soybean meal-based diet was used as a control and the treatment diet contained 500 g of pea/kg pea. In vitro study showed that pellet processing increased (P < 0.001) starch digestibility, particularly at shorter times for wheat and a much larger response for pea. Birds offered the pea-based diet had lower (P = 0.002) feed intake, lower (P = 0.020) body weight gain, but a similar (P > 0.05) FCR compared to those offered the wheat-based diet. Net energy (NE) and apparent metabolizable energy (AME) values were higher in the pea-based diet than in the wheat-based diet (P = 0.037 for NE and P = 0.018 for AME). Heat production, respiratory quotient, heat increment of feed, efficiency of utilization of gross energy for AME, and efficiency of utilization of AME for NE did not differ (P > 0.05) between the 2 treatments. There was no effect (P > 0.05) of pea on the total tract digestibilities of dry matter, crude protein and ash, but the total tract digestibility of starch was higher (P = 0.022) in the pea-based diet compared to the wheat-based diet. This study provides insight into the energy metabolism of broilers offered a pea-based diet and indicates that dietary pea supplementation increases dietary AME and NE but has no effect on heat increment of feed and the efficiency of energy utilization in broilers. CI - (c) 2021 Chinese Association of Animal Science and Veterinary Medicine. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. FAU - Sharma, Nishchal K AU - Sharma NK AD - School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia. FAU - Ban, Zhibin AU - Ban Z AD - School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia. AD - Laboratory of Animal Nutrition Metabolism, Jilin Academy of Agricultural Sciences, Gongzhuling, Jilin 136100, China. FAU - Classen, Hank L AU - Classen HL AD - Department of Animal and Poultry Science, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada. FAU - Yang, Huaming AU - Yang H AD - Laboratory of Animal Nutrition Metabolism, Jilin Academy of Agricultural Sciences, Gongzhuling, Jilin 136100, China. FAU - Yan, Xiaogang AU - Yan X AD - Laboratory of Animal Nutrition Metabolism, Jilin Academy of Agricultural Sciences, Gongzhuling, Jilin 136100, China. FAU - Choct, Mingan AU - Choct M AD - Office of the Pro Vice-Chancellor External Relations, University of New England, Armidale, NSW 2351, Australia. FAU - Wu, Shu-Biao AU - Wu SB AD - School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia. LA - eng PT - Journal Article DEP - 20210226 PL - China TA - Anim Nutr JT - Animal nutrition (Zhongguo xu mu shou yi xue hui) JID - 101717655 PMC - PMC8245792 OTO - NOTNLM OT - Broiler OT - Heat increment OT - Net energy OT - Pea OT - Slowly digested starch COIS- We declare that we have no financial and personal relationships with other people or organizations that might inappropriately influence our work, and there is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the content of this paper. EDAT- 2021/07/15 06:00 MHDA- 2021/07/15 06:01 PMCR- 2021/02/26 CRDT- 2021/07/14 07:11 PHST- 2020/03/15 00:00 [received] PHST- 2020/06/02 00:00 [revised] PHST- 2020/06/03 00:00 [accepted] PHST- 2021/07/14 07:11 [entrez] PHST- 2021/07/15 06:00 [pubmed] PHST- 2021/07/15 06:01 [medline] PHST- 2021/02/26 00:00 [pmc-release] AID - S2405-6545(21)00023-8 [pii] AID - 10.1016/j.aninu.2020.06.012 [doi] PST - ppublish SO - Anim Nutr. 2021 Jun;7(2):506-511. doi: 10.1016/j.aninu.2020.06.012. Epub 2021 Feb 26.