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Walker H, Vartiainen S, Apajalahti J, Taylor-Pickard J, Nikodinoska I, Moran CA. The Effect of including a Mixed-Enzyme Product in Broiler Diets on Performance, Metabolizable Energy, Phosphorus and Calcium Retention. Animals (Basel) 2024; 14:328. [PMID: 38275788 PMCID: PMC10812510 DOI: 10.3390/ani14020328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/16/2024] [Accepted: 01/19/2024] [Indexed: 01/27/2024] Open
Abstract
The importance of enzymes in the poultry industry is ever increasing because they help to extract as many nutrients as possible from the raw material available and reduce environmental impacts. Therefore, an experiment was conducted to examine the effect of a natural enzyme complex (ASC) on diets low in AME, Ca and P. Male Ross 308 broilers (n = 900) were fed one of four diets: (1) positive control (PC) with no enzyme added (AME 12.55 MJ/kg, AVPhos 4.8 g/kg and AVCal 9.6 g/kg); (2) negative control (NC) with no enzyme added and reduced AME, Ca and P (AME 12.18 MJ/kg, AVPhos 3.3 g/kg, AVCal 8.1 g/kg); (3) negative control plus ASC at 200 g/t; and (4) negative control plus ASC at 400 g/t. Broiler performance, digesta viscosity, tibia mineralization and mineral content were analyzed at d 21. Between d 18 and 20, excreted DM, GE, total nitrogen, Ca, and P were analyzed. ASC at 200 g/t and 400 g/t improved the FCR (p = 0.0014) significantly when compared with that of the NC. There were no significant differences in BW or FI between the treatments. Birds fed ASC at 200 g/t and 400 g/t had significantly improved digesta viscosity (p < 0.0001) compared with that of the PC and NC birds and had significantly higher excreted DM digestibility (p < 0.01) than the NC and the PC birds with 400 g/t ASC. ASC inclusion significantly improved P retention (p < 0.0001) compared to that in the PC. Ca retention was significantly increased by 400 g/t ASC compared to that in the PC and NC (p < 0.001). AME was significantly higher (p < 0.0001) for all treatments compared to that in the NC. There were no significant differences between treatments for any of the bone measurements. This study showed that feeding with ASC can support the performance of broilers when fed a diet formulated to have reduced Ca, P and AME, with the greatest results being seen with a higher level of ASC inclusion.
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Affiliation(s)
- Harriet Walker
- Solutions Deployment Team, Alltech (UK) Ltd., Stamford PE9 1TZ, UK; (H.W.); (J.T.-P.)
| | - Suvi Vartiainen
- Alimetrics Research Ltd., 02920 Espoo, Finland; (S.V.); (J.A.)
| | - Juha Apajalahti
- Alimetrics Research Ltd., 02920 Espoo, Finland; (S.V.); (J.A.)
| | - Jules Taylor-Pickard
- Solutions Deployment Team, Alltech (UK) Ltd., Stamford PE9 1TZ, UK; (H.W.); (J.T.-P.)
| | - Ivana Nikodinoska
- Alltech’s European Bioscience Centre, Dunboyne, A86 X006 Co. Meath, Ireland;
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Gungor E, Altop A, Erener G. Effect of fermented tomato pomace on the growth performance, antioxidant capacity, and intestinal microflora in broiler chickens. Anim Sci J 2024; 95:e13885. [PMID: 38221671 DOI: 10.1111/asj.13885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/05/2023] [Accepted: 10/05/2023] [Indexed: 01/16/2024]
Abstract
Solid-state fermentation is a useful method for the utilization of the agri-industrial residues. This study was conducted to investigate the effects of tomato pomace (TP) and Aspergillus niger-fermented tomato pomace (FTP) on the growth performance, some carcass traits, antioxidant status, and intestinal microflora in broiler chickens. A total of 140 Ross 308 one-day-old male chicks were allocated to one of four treatment groups consisting of five replicates of seven chicks each. Chicks were fed ad libitum with the corn-soybean based basal diet (control), the basal diet supplemented with 0.25 g/kg synthetic antioxidant, 10 g/kg TP or 10 g/kg FTP for 42 days. Dietary TP increased serum glutathione peroxidase (GPx) and superoxide dismutase (SOD) but did not affect the growth performance. Dietary inclusion of FTP improved the feed conversion ratio and raised serum GPx and SOD. Carcass traits, malondialdehyde level, pH, and color of breast meat and cecal microflora were not affected by dietary treatments. The results of the study showed that TP can be used as a natural antioxidant in broiler diets without a detrimental effect on growth performance. Dietary FTP can be suggested as an alternative to synthetic antioxidants with beneficial effects on growth performance and antioxidant capacity.
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Affiliation(s)
- Emrah Gungor
- Department of Animal Science, Faculty of Agriculture, Ondokuz Mayis University, Samsun, Turkey
| | - Aydin Altop
- Department of Animal Science, Faculty of Agriculture, Ondokuz Mayis University, Samsun, Turkey
| | - Guray Erener
- Department of Animal Science, Faculty of Agriculture, Ondokuz Mayis University, Samsun, Turkey
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3
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Shuai C, Chen D, Yu B, Luo Y, Zheng P, Huang Z, Yu J, Mao X, Yan H, He J. Effect of fermented rapeseed meal on growth performance, nutrient digestibility, and intestinal health in growing pigs. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2023; 15:420-429. [PMID: 38058565 PMCID: PMC10696392 DOI: 10.1016/j.aninu.2023.06.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 06/09/2023] [Accepted: 06/17/2023] [Indexed: 12/08/2023]
Abstract
To explore the effects of fermented rapeseed meal (FRSM) on growth performance and intestinal health, a total of 30 growing pigs were randomly allotted to three treatments consisting of corn-soybean meal diet (CSD), rapeseed meal diet (RSD), and fermented rapeseed meal diet (FRSD). Results showed that compared with RSD, FRSD feeding increased the average daily gain and final body weight in pigs (P < 0.01). Compared with RSD feeding, FRSD feeding elevated the apparent digestibility of crude protein, acid detergent fiber, and ether extract in pigs (P < 0.01). Moreover, the FRSD group exhibited greater apparent ileal digestibility of His, Thr, Lys, and Ser than the RSD group (P < 0.01). The digestible energy, metabolic energy, and nitrogen utilization were higher in the FRSD and CSD groups than in the RSD group (P < 0.01). As compared to the RSD, FRSD feeding decreased the serum concentration of leptin but significantly increased the concentrations of immunoglobulin (Ig) A, IgG, ghrelin, and enzyme activities of amylase, lipase, and trypsin in the pancreas (P < 0.05). Interestingly, the villus height, the ratio of villus height to crypt depth, and the activities of brush border enzymes (e.g., maltase and sucrase) in the small intestine were higher in the CSD and FRSD groups than in the RSD group (P < 0.05). As compared to the RSD, the FRSD feeding not only increased the expression level of the occludin in the small intestinal epithelium (P < 0.05) but also elevated the expression levels of claudin-1, MUC1, and PepT1 genes in the duodenum, and elevated the expression levels of SGLT1 and CAT1 genes in the jejunum (P < 0.05). Importantly, FRSD feeding significantly decreased the abundance of Escherichia coli, but increased the abundance of Lactobacillus and the content of butyrate in the cecum and colon (P < 0.05). These results indicated that compared with rapeseed meal, fermented rapeseed meal exhibited a positive effect on improving the growth performance and intestinal health in growing pigs, and the results may also help develop novel protein sources for animal nutrition and the feed industry.
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Affiliation(s)
- Changyi Shuai
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Province, Chengdu, 611130, China
| | - Daiwen Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Province, Chengdu, 611130, China
| | - Bing Yu
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Province, Chengdu, 611130, China
| | - Yuheng Luo
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Province, Chengdu, 611130, China
| | - Ping Zheng
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Province, Chengdu, 611130, China
| | - Zhiqing Huang
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Province, Chengdu, 611130, China
| | - Jie Yu
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Province, Chengdu, 611130, China
| | - Xiangbing Mao
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Province, Chengdu, 611130, China
| | - Hui Yan
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Province, Chengdu, 611130, China
| | - Jun He
- Institute of Animal Nutrition, Sichuan Agricultural University, Sichuan Province, Chengdu, 611130, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Province, Chengdu, 611130, China
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Ibrahim D, El-sayed HI, Mahmoud ER, El-Rahman GIA, Bazeed SM, Abdelwarith AA, Elgamal A, Khalil SS, Younis EM, Kishawy ATY, Davies SJ, Metwally AE. Impacts of Solid-State Fermented Barley with Fibrolytic Exogenous Enzymes on Feed Utilization, and Antioxidant Status of Broiler Chickens. Vet Sci 2023; 10:594. [PMID: 37888546 PMCID: PMC10611247 DOI: 10.3390/vetsci10100594] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/20/2023] [Accepted: 09/21/2023] [Indexed: 10/28/2023] Open
Abstract
The present and future high demand of common cereals as corn and wheat encourage the development of feed processing technology that allows for the dietary inclusion of other cereals of low nutritional value in poultry feeding. Barley grains contain anti-nutritional factors that limit their dietary inclusion in the poultry industry. The treatment of barley with solid-state fermentation and exogenous enzymes (FBEs) provides a good alternative to common cereals. In this study, barley grains were subjected to solid-state microbial fermentation using Lactobacillus plantarum, Bacillus subtilis and exogenous fibrolytic enzymes. This study aimed to assess the impact of FBEs on growth, feed utilization efficiency, immune modulation, antioxidant status and the expression of intestinal barrier and nutrient transporter-related genes. One-day-old broiler chicks (Ross 308, n = 400) comprised four representative groups with ten replicates (10 chicks/replicate) and were fed corn-soybean meal basal diets with inclusions of FBEs at 0, 5, 10 and 15% for 38 days. Solid-state fermentation of barley grains with fibrolytic enzymes increased protein content, lowered crude fiber and reduced sugars compared to non-fermented barley gains. In consequence, the group fed FBEs10% had the superior feed utilization efficiency and body weight gain (increased by 4.7%) with higher levels of nutrient metabolizability, pancreatic digestive enzyme activities and low digesta viscosity. Notably, the group fed FBEs10% showed an increased villi height and a decreased crypt depth with a remarkable hyperactivity of duodenal glands. In addition, higher inclusion levels of FBEs boosted serum immune-related parameters and intestinal and breast muscle antioxidants status. Intestinal nutrient transporters encoding genes (GLUT-1, CAAT-1, LAT1 and PepT-1) and intestinal barriers encoding genes (MUC-2, JAM-2, occludin, claudins-1 and β-defensin 1) were upregulated with higher dietary FBEs levels. In conclusion, feeding on FBEs10% positively enhanced broiler chickens' performance, feed efficiency and antioxidant status, and boosted intestinal barrier nutrient transporters encoding genes.
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Affiliation(s)
- Doaa Ibrahim
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Hassainen I. El-sayed
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Elsabbagh R. Mahmoud
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Ghada I. Abd El-Rahman
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt;
| | - Shefaa M. Bazeed
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, Badr University in Cairo (BUC), Cairo P.O. Box 4942301, Egypt;
| | - Abdelwahab A. Abdelwarith
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (A.A.A.); (E.M.Y.)
| | - Aya Elgamal
- Department of Animal Histology and Anatomy, Faculty of Veterinary Medicine, Badr University in Cairo (BUC), Cairo P.O. Box 4942301, Egypt;
| | - Samah S. Khalil
- Department of biochemistry, drug information center, Zagazig University Hospitals, Zagazig University, Zagazig P.O. Box 44511, Egypt;
| | - Elsayed M. Younis
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (A.A.A.); (E.M.Y.)
| | - Asmaa T. Y. Kishawy
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Simon J. Davies
- Aquaculture Nutrition Research Unit ANRU, Carna Research Station, Ryan Institute, College of Science and Engineering, University of Galway, H91 V8Y1 Galway, Ireland;
| | - Abdallah E. Metwally
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt
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Salem HM, Saad AM, Soliman SM, Selim S, Mosa WFA, Ahmed AE, Al Jaouni SK, Almuhayawi MS, Abd El-Hack ME, El-Tarabily KA, El-Saadony MT. Ameliorative avian gut environment and bird productivity through the application of safe antibiotics alternatives: a comprehensive review. Poult Sci 2023; 102:102840. [PMID: 37478510 PMCID: PMC10393590 DOI: 10.1016/j.psj.2023.102840] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/28/2023] [Accepted: 06/01/2023] [Indexed: 07/23/2023] Open
Abstract
The avian digestive tract is an important system for converting ingested food into the nutrients their bodies need for maintenance, growth, and reproduction (meat, table eggs, and fertile eggs). Therefore, preserving digestive system integrity is crucial to bird health and productivity. As an alternative to antibiotics, the world has recently turned to the use of natural products to enhance avian development, intestinal health, and production. Therefore, the primary goal of this review is to explain the various characteristics of the avian digestive tract and how to enhance its performance with natural, safe feed additives such as exogenous enzymes, organic acids, photogenic products, amino acids, prebiotics, probiotics, synbiotics, and herbal extracts. In conclusion, the composition of the gut microbiome can be influenced by a number of circumstances, and this has important consequences for the health and productivity of birds. To better understand the connection between pathogens, the variety of therapies available, and the microbiome of the gut, additional research needs to be carried out.
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Affiliation(s)
- Heba M Salem
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Ahmed M Saad
- Department of Biochemistry, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Soliman M Soliman
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Samy Selim
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, 72388, Saudi Arabia
| | - Walid F A Mosa
- Plant Production Department (Horticulture-Pomology), Faculty of Agriculture, Saba Basha, Alexandria University, Alexandria, 21531, Egypt
| | - Ahmed Ezzat Ahmed
- Biology Department, College of Science, King Khalid University, Abha, 61413, Saudi Arabia
| | - Soad K Al Jaouni
- Department of Hematology/Oncology, Yousef Abdulatif Jameel Scientific Chair of Prophetic Medicine Application, Faculty of Medicine, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Mohammed S Almuhayawi
- Department of Clinical Microbiology and Immunology, Yousef Abdulatif Jameel Scientific Chair of Prophetic Medicine Application, Faculty of Medicine, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Mohamed E Abd El-Hack
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Khaled A El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, 15551, United Arab Emirates.
| | - Mohamed T El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
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Zhou X, Zhang H, Li S, Jiang Y, Kang L, Deng J, Yang C, Zhao X, Zhao J, Jiang L, Chen X. The effects of fermented feedstuff derived from Citri Sarcodactylis Fructus by-products on growth performance, intestinal digestive enzyme activity, nutrient utilization, meat quality, gut microbiota, and metabolites of broiler chicken. Front Vet Sci 2023; 10:1231996. [PMID: 37470069 PMCID: PMC10352846 DOI: 10.3389/fvets.2023.1231996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 06/19/2023] [Indexed: 07/21/2023] Open
Abstract
This research aimed to assess the impact of fermented Citri Sarcodactylis Fructus by-products (FCSF) on the growth performance, gut digestive enzyme activity, nutrient utilization efficiency, gut microbiota, and their metabolites in broiler chickens. A total of 1,080 male broiler chickens were allocated into four groups (T1-T4) consisting of 6 replicates per group, each containing 45 chickens. The basal diet was provided to group T1, while groups T2, T3, and T4 were supplemented with 1%, 3%, and 5% FCSF in the basal diet, respectively. The experimental period was 42 days. The findings revealed that supplementing FCSF improved the FW and ADG of broiler chickens, and led to a reduction in the F/G, ADFI, and mortality rate of broiler chickens (p < 0.05). Furthermore, supplementation with 3% and 5% FCSF improved the thigh yield, semi-eviscerated carcass yield, slaughter yield, and lipase activity in the duodenum and ileum of birds (p < 0.05). Additionally, supplementing 3% FCSF enhanced the activity of protease in the duodenum of broilers (p < 0.05). Moreover, supplementing 3% FCSF enhanced the utilization of total phosphorus, dry matter, crude protein, and crude ash in the feed by broilers (p < 0.05). Compared with the control group, supplementation of 3% and 5% FCSF reduced the serine content in broiler chicken breast meat (p < 0.05). Supplementing 1% FCSF significantly increased the C14:0, C14:1, and C20:1 content in the breast meat compared to the other experimental groups (p < 0.05). The levels of C20:4n6 and C23:0 in the breast meat of birds of FCSF supplemented groups were lower than in T1 (p < 0.05). Furthermore, the content of ∑ω-3PUFA decreased after supplementing with 3% and 5% FCSF (p < 0.05). 16SrDNA showed that supplementing 3% FCSF reduced the ACE, Chao1, and Shannon indices in the cecum of birds (p < 0.05). Supplementing 3% FCSF also decreased the abundance of the phylum Desulfobacterota and improved genera Coprobacter and Prevotella in the cecum of broiler chickens (p < 0.05). Metabolomic analysis of the gut microbiota revealed that supplementing 3% FCSF upregulated 6 metabolites and downregulated 16 metabolites (p < 0.05). Moreover, supplementing 3% FCSF downregulated 12 metabolic pathways and upregulated 3 metabolic pathways (p < 0.05). In summary our findings indicate that supplementing FCSF can improve the growth performance of broiler chickens by enhancing intestinal digestive enzyme activity, nutrient utilization, improving gut microbial diversity, and influencing the metabolism of gut microbiota.
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Affiliation(s)
- Xinhong Zhou
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, China
- Leshan Academy of Agriculture Science, Leshan, Sichuan, China
| | - Huaidan Zhang
- Leshan Academy of Agriculture Science, Leshan, Sichuan, China
| | - Shiyi Li
- Leshan Academy of Agriculture Science, Leshan, Sichuan, China
| | - Yilong Jiang
- Leshan Academy of Agriculture Science, Leshan, Sichuan, China
| | - Lijuan Kang
- Leshan Academy of Agriculture Science, Leshan, Sichuan, China
| | - Jicheng Deng
- Leshan Academy of Agriculture Science, Leshan, Sichuan, China
| | - Chuanpeng Yang
- Leshan Academy of Agriculture Science, Leshan, Sichuan, China
| | - Xin Zhao
- Leshan Academy of Agriculture Science, Leshan, Sichuan, China
| | - Jingjing Zhao
- Leshan Animal Disease Prevention and Control Center, Leshan, Sichuan, China
| | - Li Jiang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, China
| | - Xianxin Chen
- Leshan Academy of Agriculture Science, Leshan, Sichuan, China
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Villar-Patiño G, Camacho-Rea MDC, Olvera-García ME, Soria-Soria A, Baltazar-Vázquez JC, Gómez-Verduzco G, Solano L, Téllez G, Ramírez-Pérez AH. The Effect of Encapsulated Propyl Propane Thiosulfonate (PTSO) on Apparent Ileal Digestibility and Productive Performance in Broiler Chickens. Animals (Basel) 2023; 13:ani13061123. [PMID: 36978663 PMCID: PMC10044627 DOI: 10.3390/ani13061123] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/05/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
This study analyzed the effects of different dietary doses of encapsulated propyl propane thiosulfonate (Pe-PTSO) on the apparent ileal digestibility (AID) of nutrients and productive performance in broilers. A total of 100 one-day-old Cobb 500 were housed in battery cages for 20 days. At 10 days of age, the birds were assigned to one of five diets: negative control (P0), 250 mg/kg of Pe-PTSO (P250), 500 mg/kg of Pe-PTSO (P500), 750 mg/kg of Pe-PTSO (P750), and positive control, nicarbazin-narasin (ION). Titanium dioxide was the external marker, which was added to the diets from day 17 to 20. In the birds fed the P250 diet, there was a significant difference (p ≤ 0.05) in the AID values for amino acids and energy compared to those that consumed the P0 diet. Furthermore, the P250 diet significantly increased (p ≤ 0.05) the average daily weight gain compared to the P0 diet. No significant differences were observed between treatments in average daily feed intake and feed conversion ratio. In summary, the inclusion of 250 mg of encapsulated PTSO per kg in broiler chickens diet improved the digestibility of amino acids and energy, as well as weight gain.
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Affiliation(s)
- Gonzalo Villar-Patiño
- Programa de Doctorado en Ciencias de la Salud y de la Producción Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Avenida Universidad 3000, Coyoacán, Ciudad de México 04510, Mexico
- Grupo Nutec, El Marqués, Querétaro 76246, Mexico
| | - María Del Carmen Camacho-Rea
- Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", Departamento de Nutrición Animal, Tlalpan, Ciudad de México 14080, Mexico
| | | | | | | | - Gabriela Gómez-Verduzco
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Avenida Universidad 3000, Coyoacán, Ciudad de México 04510, Mexico
| | - Lourdes Solano
- Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", Departamento de Nutrición Animal, Tlalpan, Ciudad de México 14080, Mexico
| | - Guillermo Téllez
- Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA
| | - Aurora Hilda Ramírez-Pérez
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Avenida Universidad 3000, Coyoacán, Ciudad de México 04510, Mexico
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