{"id":23698,"date":"2019-07-02T00:11:05","date_gmt":"2019-07-01T22:11:05","guid":{"rendered":"https:\/\/ew-nutrition.com\/phytomolecules-boosting-poultry-performance-without-antibiotics\/"},"modified":"2025-01-02T14:29:16","modified_gmt":"2025-01-02T13:29:16","slug":"phytomolecules-boosting-poultry-performance-without-antibiotics","status":"publish","type":"post","link":"https:\/\/ew-nutrition.com\/en-uk\/phytomolecules-boosting-poultry-performance-without-antibiotics\/","title":{"rendered":"Phytomolecules: Boosting Poultry Performance without Antibiotics"},"content":{"rendered":"<p style=\"text-align: justify;\"><img decoding=\"async\" class=\"aligncenter wp-image-23403\" title=\"boosting poultry performance phytomolecules\" src=\"https:\/\/ew-nutrition.com\/wp-content\/uploads\/POULTRY_DAYOLDCHICK_DSC4341.jpg\" alt=\"Boosting poultry performance \" width=\"1332\" height=\"590\" srcset=\"https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341.jpg 1920w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-300x133.jpg 300w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-1024x454.jpg 1024w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-500x222.jpg 500w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-768x340.jpg 768w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-120x53.jpg 120w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-40x18.jpg 40w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-160x71.jpg 160w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-32x14.jpg 32w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-600x266.jpg 600w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-36x16.jpg 36w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-150x66.jpg 150w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-225x100.jpg 225w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-80x35.jpg 80w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-48x21.jpg 48w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-64x28.jpg 64w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-28x12.jpg 28w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-920x408.jpg 920w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-280x124.jpg 280w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-24x11.jpg 24w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/POULTRY_DAYOLDCHICK_DSC4341-170x75.jpg 170w\" sizes=\"(max-width: 1332px) 100vw, 1332px\" \/><\/p>\n<p style=\"text-align: justify;\">Antimicrobial resistance (AMR) is a major threat to global public health. It is largely caused by the overuse of antibiotics in human medicine and agriculture. In intensive poultry production most antibiotics are used as antimicrobial growth promoters and\/or used as prophylactic and metaphylactic treatments to healthy animals. Reducing such antibiotic interventions is crucial to lowering the incidence of AMR. However, antibiotic reduction often results in undesirable performance losses. Hence alternative solutions are needed to boost poultry performance. Phytomolecules have antimicrobial, digestive, anti-inflammatory and antioxidant properties, which could make them key to closing the performance gap.<\/p>\n<h2 style=\"text-align: justify;\"><span style=\"font-size: 14pt; color: #282828;\"><strong>Poultry performance depends on intestinal health<\/strong><\/span><\/h2>\n<p style=\"text-align: justify;\">Poultry performance is to a large extent a function of intestinal health. The intestines process nutrients, electrolytes and water, produce mucin, secrete immunoglobulins and create a barrier against antigens and pathogens.<\/p>\n<p style=\"text-align: justify;\">In addition, it is an important component of the body&#8217;s immune defense system. The intestine has to identify pathogens and reject them, but also has to tolerate harmless and beneficial microorganisms. If the intestines do not function properly this can lead to food intolerance, dysbiosis, infections and diseases. All of these are detrimental to feed conversion and therefore also to animal performance.<\/p>\n<p style=\"text-align: justify;\">Antibiotics reduce the number of microorganisms in the intestinal tract. From a performance point of view this has two benefits: first, the number of pathogens is reduced and therefore also the likelihood of diseases; second, bacteria are eliminated as competitors for the available nutrients. However, the overuse of antibiotics not only engenders AMR: antibiotics also eliminate probiotic bacteria, which negatively impacts the digestive tracts\u2019 microflora.<\/p>\n<p style=\"text-align: justify;\">Products to boost poultry performance may be added to their feed or water. They range from pre- and probiotics to medium chain fatty acids and organic acids to plant extracts or phytomolecules. Especially the latter have the potential to substantially reduce the use of antibiotics in poultry farming.<\/p>\n<h2 style=\"text-align: justify;\"><span style=\"font-size: 14pt; color: #282828;\"><strong>Phytomolecules are promising tools for antibiotic reduction<\/strong><\/span><\/h2>\n<p style=\"text-align: justify;\">Plants produce phytomolecules to fend off pathogens such as moulds, yeasts and bacteria. Their antimicrobial effect is achieved through a variety of complex mechanisms. Terpenoids and phenols, for example, disturb or destroy the pathogens\u2019 cell wall. Other phytomolecules inhibit their growth by influencing their genetic material. Studies on broilers show that certain phytomolecules reduce the adhesion of pathogens such as to the wall of the intestine. Carvacrol and thymol were found to be effective against different species of <em>Salmonella<\/em> and <em>Clostridium perfringens<\/em>.<\/p>\n<p style=\"text-align: justify;\">There is even evidence that secondary plant compounds also possess antimicrobial characteristics against antibiotic resistant pathogens. In-vitro trials with cinnamon oil, for example, showed antimicrobial effects against methicillin resistant Staphylococcus aureus, as well as against multiresistant E. coli, Klebsiella pneumoniae and Candida albicans.<\/p>\n<p style=\"text-align: justify;\">Importantly, there are no known cases to date of bacteria developing resistances to phytomolecules. Moreover, phytomolecules increase the production and activity of digestive enzymes, they suppress the metabolism of pro-inflammatory prostaglandins and they act as antioxidants. Their properties thus make them a promising alternative to the non-therapeutic use of antibiotics.<\/p>\n<p><strong><span style=\"font-size: 14pt; color: #282828;\">Study design and results<\/span><\/strong><\/p>\n<p style=\"text-align: justify;\">In order to evaluate the effect of phytomolecules on poultry performance, multiple feeding studies were conducted on broilers and laying hens. They were given a phytogenic premix (<a href=\"https:\/\/ew-nutrition.com\/en-uk\/animal-nutrition\/products\/activo\/\">Activo<\/a>, EW Nutrition GmbH) that contains standardized \u00a0amounts of selected phytomolecules.<\/p>\n<p style=\"text-align: justify;\">To achieve thermal stability during the feed processing and a targeted release in the birds\u2019 <a href=\"https:\/\/ew-nutrition.com\/en-uk\/a-complex-battlefield-mycotoxins-in-the-gastrointestinal-tract\/\">gastrointestinal tract<\/a>, the product is microencapsulated. For each , the studies evaluated both the tolerance of the premix and the efficacy of different dosages.<\/p>\n<p><em><strong>Study I: Evaluation of the dose dependent efficacy and tolerance of Activo\u00a0for broilers<\/strong><\/em><br \/>\nAnimals:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 400 broilers; age: 1-35 days of age<br \/>\nFeed:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Basal starter and grower diets<br \/>\nTreatments:<br \/>\n&#8211; No supplement (negative control)<br \/>\n&#8211; 100 mg of Activo \/kg of feed<br \/>\n&#8211; 1.000 mg of Activo \/kg of feed<br \/>\n&#8211; 10.000 mg of Activo \/kg of feed<br \/>\nParameters:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 weight gain, feed intake, feed conversion ratio, health status, and blood parameters<\/p>\n<p style=\"text-align: justify;\"><strong>Results: <\/strong>The trial group given the diet supplemented with 100 mg\/kg <a href=\"https:\/\/ew-nutrition.com\/en-uk\/animal-nutrition\/products\/activo\/\">Activo<\/a> showed significant improvements in body weight gain during the starter period (+4%) compared to the control group. Additional significant improvements in feed conversion ratio (FCR) in the growing period (+4%) resulted in an overall improvement in FCR of 3%. At a 1.000 mg\/kg supplementation, a significant improvement in FCR of 6% was observed over the entire feeding period. Hematological parameters were within the reference range of healthy birds when feeding up to 10,000 Activo\/ kg of feed.<\/p>\n<p><strong><em>Study II: Evaluation of the dose depending efficacy and tolerance of Activo\u00a0for laying hens<\/em><\/strong><\/p>\n<p>Animals:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 200 hens; age: 20 to 43 weeks<br \/>\nFeed:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 basal diet for laying hens<br \/>\nTreatments:<br \/>\n&#8211; No supplement (negative control)<br \/>\n&#8211; 100 mg of Activo\/ kg of feed<br \/>\n&#8211; 250 mg of Activo\/ kg of feed<br \/>\n&#8211; 500 mg of Activo\/ kg of feed<br \/>\n&#8211; 5.000 mg of Activo\/ kg of feed<br \/>\nParameters:\u00a0\u00a0\u00a0\u00a0\u00a0 weight gain, feed intake, feed conversion ratio, health status, and blood parameters<\/p>\n<p style=\"text-align: justify;\"><strong>Results: <\/strong>Inclusion levels from 100 mg\/kg of Activo onwards improved laying performance, egg mass and egg weight and reduced FCR compared to the control group. Results recorded for hematological parameters were within the reference range of healthy birds when feeding up to 5.000 mg Activo\/ kg of feed.<\/p>\n<p><em><strong>Study III: Evaluation of the dose-dependent effects of Activo\u00a0for coccidiosis vaccinated broilers<\/strong><\/em><\/p>\n<p>Animals:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 960 broiler chickens; age: 42 days<br \/>\nFeed:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Standard starter and finisher feed<br \/>\nTreatments:<br \/>\n&#8211; No supplement (negative control)<br \/>\n&#8211; 50 g of Activo \/US ton of feed<br \/>\n&#8211; 100 g of Activo \/US ton of feed<br \/>\n&#8211; 150 g of Activo \/US ton of feed<br \/>\n&#8211; 200 g of Activo \/US ton of feed<br \/>\n&#8211; 250 g of Activo \/US ton of feed<br \/>\n&#8211; Antibiotic growth promoter (AGP)(positive control)<br \/>\nParameters:\u00a0\u00a0\u00a0\u00a0\u00a0 weight gain, feed efficiency<br \/>\nSpecific:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 In order to represent field conditions, the birds were challenged with used, homogenized litter.<\/p>\n<p style=\"text-align: justify;\"><strong>Results<\/strong>: A clear dose response for both body weight gain and feed efficiency was observed (see Figure 1): the more phytogenic premix given, the better the birds\u2019 performance. The group with 200g of Activo \/US ton of feed showed similar performance levels than the positive control group supplemented with AGP.<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #808080;\"><em>Figure 1: Dose-dependent effects of for coccidiosis vaccinated broilers<\/em> <\/span><\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-91516 aligncenter\" src=\"https:\/\/ew-nutrition.com\/wp-content\/uploads\/articles\/art4_ac_plt_phytomolecules-boosting-poultry-performance-without-antibiotics\/art4_graphic2_graph.jpg\" alt=\"\" width=\"905\" height=\"767\" srcset=\"https:\/\/ew-nutrition.com\/wp-content\/uploads\/articles\/art4_ac_plt_phytomolecules-boosting-poultry-performance-without-antibiotics\/art4_graphic2_graph.jpg 905w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/articles\/art4_ac_plt_phytomolecules-boosting-poultry-performance-without-antibiotics\/art4_graphic2_graph-300x254.jpg 300w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/articles\/art4_ac_plt_phytomolecules-boosting-poultry-performance-without-antibiotics\/art4_graphic2_graph-150x127.jpg 150w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/articles\/art4_ac_plt_phytomolecules-boosting-poultry-performance-without-antibiotics\/art4_graphic2_graph-120x102.jpg 120w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/articles\/art4_ac_plt_phytomolecules-boosting-poultry-performance-without-antibiotics\/art4_graphic2_graph-36x31.jpg 36w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/articles\/art4_ac_plt_phytomolecules-boosting-poultry-performance-without-antibiotics\/art4_graphic2_graph-225x191.jpg 225w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/articles\/art4_ac_plt_phytomolecules-boosting-poultry-performance-without-antibiotics\/art4_graphic2_graph-80x68.jpg 80w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/articles\/art4_ac_plt_phytomolecules-boosting-poultry-performance-without-antibiotics\/art4_graphic2_graph-48x41.jpg 48w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/articles\/art4_ac_plt_phytomolecules-boosting-poultry-performance-without-antibiotics\/art4_graphic2_graph-64x54.jpg 64w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/articles\/art4_ac_plt_phytomolecules-boosting-poultry-performance-without-antibiotics\/art4_graphic2_graph-28x24.jpg 28w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/articles\/art4_ac_plt_phytomolecules-boosting-poultry-performance-without-antibiotics\/art4_graphic2_graph-636x539.jpg 636w\" sizes=\"(max-width: 905px) 100vw, 905px\" \/><\/p>\n<p><em><strong>Study IV: \u00a0Evaluation of the dose-dependent effects of Activo\u00a0for laying hens<\/strong><\/em><\/p>\n<p>Animals:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 40 hens; age: week 20 to 43<br \/>\nFeed:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 basal diet for laying hens<br \/>\nTreatments:<br \/>\n&#8211; No supplement (negative control)<br \/>\n&#8211; 100 mg of Activo\/ kg of feed<br \/>\n&#8211; 250 mg of Activo\/ kg of feed<br \/>\n&#8211; 500 mg of Activo\/ kg of feed<br \/>\n&#8211; 5.000 mg of Activo\/ kg of feed<br \/>\nParameters:\u00a0\u00a0\u00a0\u00a0\u00a0 weight gain, feed intake, egg production, feed conversion ratio, health status<br \/>\nDuration:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 168 days of feeding period<\/p>\n<p style=\"text-align: justify;\"><strong>Results<\/strong>: The laying hens showed a higher laying rate when fed with a higher concentration of phytomolecules (Figure 2). Similarly improved results were observed for the feed efficiency. The more phytogenic premix added to their diet the better feed efficiency (Figure 3).<\/p>\n<p style=\"line-height: normal; margin: 0cm 0cm 12pt; text-align: center;\"><span lang=\"EN-US\" style=\"color: #808080;\"><em>Figure 2: Dose-dependent effects of Activo on laying rate in laying hens<\/em> <\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-27996 size-full\" src=\"https:\/\/ew-nutrition.com\/wp-content\/uploads\/cumulative_egg_number.png\" alt=\"\" width=\"734\" height=\"501\" srcset=\"https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number.png 734w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-300x205.png 300w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-500x341.png 500w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-120x82.png 120w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-40x27.png 40w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-160x109.png 160w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-32x22.png 32w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-586x400.png 586w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-36x25.png 36w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-150x102.png 150w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-225x154.png 225w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-80x55.png 80w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-48x33.png 48w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-64x44.png 64w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-28x19.png 28w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-280x191.png 280w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-24x16.png 24w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/cumulative_egg_number-170x116.png 170w\" sizes=\"(max-width: 734px) 100vw, 734px\" \/><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #808080;\"><em>Figure 3: Dose-dependent effects of Activo on feed efficiency in laying hens<\/em> <\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-27962 size-full\" src=\"https:\/\/ew-nutrition.com\/wp-content\/uploads\/feed_conversion.png\" alt=\"\" width=\"734\" height=\"501\" srcset=\"https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion.png 734w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-300x205.png 300w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-500x341.png 500w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-120x82.png 120w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-40x27.png 40w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-160x109.png 160w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-32x22.png 32w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-586x400.png 586w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-36x25.png 36w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-150x102.png 150w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-225x154.png 225w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-80x55.png 80w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-48x33.png 48w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-64x44.png 64w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-28x19.png 28w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-280x191.png 280w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-24x16.png 24w, https:\/\/ew-nutrition.com\/wp-content\/uploads\/\/feed_conversion-170x116.png 170w\" sizes=\"(max-width: 734px) 100vw, 734px\" \/><\/p>\n<p style=\"text-align: justify;\">In conclusion, all four studies indicate that the inclusion of phytomolecules in broilers\u2019 and laying hens\u2019 diet improves their performance. Increasing levels of a phytogenic premix (Activo) significantly increased the production parameters for both groups. These improvements might bring performance in antibiotic-free <a href=\"https:\/\/ew-nutrition.com\/en-uk\/animal-nutrition\/species\/poultry\/\">poultry production<\/a> on par with previous performance figures achieved with antimicrobial growth promoters.<\/p>\n<p style=\"text-align: justify;\">The studies also showed that microencapsulated phytogenic premixes are safe when used in dose ranges recommended by the suppliers. No negative effects on animal health could be observed even at a 100 fold \/ 50 fold of the recommended inclusion rate in diets for broiler or laying hens, respectively. Thanks to their positive influence on intestinal health, phytomolecules thus boost poultry performance in a safe and effective way.<\/p>\n<p><em>By Technical Team, EW Nutrition<\/em><\/p>\n<h2><span style=\"font-size: 10pt;\"><em>Literature<\/em><\/span><\/h2>\n<p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0188440905002730?via%3Dihub\"><span style=\"font-size: 10pt;\"><em>Alanis, Alfonso J. &#8220;Resistance to Antibiotics: Are We in the Post-Antibiotic Era?&#8221; Archives of Medical Research 36, no. 6 (October 08, 2005): 697-705. doi:10.1016\/j.arcmed.2005.06.009.<\/em><\/span><\/a><\/p>\n<p><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/30026889\"><em><span style=\"font-size: 10pt;\">Borda-Molina, Daniel, Jana Seifert, and Am\u00e9lia Camarinha-Silva. &#8220;Current Perspectives of the Chicken Gastrointestinal Tract and Its Microbiome.&#8221; Computational and Structural Biotechnology Journal 16 (March 15, 2018): 131-39. doi:10.1016\/j.csbj.2018.03.002.<\/span><\/em><\/a><\/p>\n<p><a href=\"https:\/\/pdfs.semanticscholar.org\/b10c\/467300f1b37c80684f77fa6f3490b093a98c.pdf\"><span style=\"font-size: 10pt;\"><em>Diaz-Sanchez, Sandra, Doris Dsouza, Debrabrata Biswas, and Irene Hanning. &#8220;Botanical Alternatives to Antibiotics for Use in Organic Poultry Production.&#8221; Poultry Science 94, no. 6 (June 2015): 1419-430. doi:10.3382\/ps\/pev014.<\/em><\/span><\/a><\/p>\n<p><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC4802587\/\"><span style=\"font-size: 10pt;\"><em>Du, Encun, Weiwei Wang, Liping Gan, Zhui Li, Shuangshuang Guo, and Yuming Guo. &#8220;Effects of Thymol and Carvacrol Supplementation on Intestinal Integrity and Immune Responses of Broiler Chickens Challenged with Clostridium Perfringens.&#8221; Journal of Animal Science and Biotechnology 7, no. 19 (March 22, 2016). doi:10.1186\/s40104-016-0079-7.<\/em><\/span><\/a><\/p>\n<p><a href=\"https:\/\/microbiomejournal.biomedcentral.com\/articles\/10.1186\/s40168-017-0315-1\"><span style=\"font-size: 10pt;\"><em>Gao, Pengfei, Chen Ma, Zheng Sun, Lifeng Wang, Shi Huang, Xiaoquan Su, Jian Xu, and Heping Zhang. &#8220;Feed-additive Probiotics Accelerate Yet Antibiotics Delay Intestinal Microbiota Maturation in Broiler Chicken.&#8221; Microbiome 5, no. 1 (August 03, 2017). doi:10.1186\/s40168-017-0315-1.<\/em><\/span><\/a><\/p>\n<p><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC6253777\/\"><span style=\"font-size: 10pt;\"><em>Khan, Rosina, Barira Islam, Mohd Akram, Shazi Shakil, Anis Ahmad Ahmad, S. Manazir Ali, Mashiatullah Siddiqui, and Asad Khan. &#8220;Antimicrobial Activity of Five Herbal Extracts Against Multi Drug Resistant (MDR) Strains of Bacteria and Fungus of Clinical Origin.&#8221; Molecules 14, no. 2 (February 04, 2009): 586-97. doi:10.3390\/molecules14020586.<\/em><\/span><\/a><\/p>\n<p><span style=\"font-size: 10pt;\"><em>Manafi, Milad, Mahdi Hedayati, Saeed Khalaji, and Mohammad Kamely. &#8220;Assessment of a Natural, Non-antibiotic Blend on Performance, Blood Biochemistry, Intestinal Microflora, and Morphology of Broilers Challenged with Escherichia Coli.&#8221; Revista Brasileira De Zootecnia 45, no. 12 (December 2016): 745-54. doi:10.1590\/s1806-92902016001200003.<\/em><\/span><\/p>\n<p><em>Photo source: <a href=\"http:\/\/en.aviagen.com\/\">Aviagen<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Antimicrobial resistance (AMR) is a major threat to global public health. It is largely caused by the overuse of antibiotics in human medicine and agriculture. In intensive poultry production most antibiotics are used as antimicrobial growth promoters and\/or used as prophylactic and metaphylactic treatments to healthy animals. Reducing such antibiotic interventions is crucial to lowering&#8230;<\/p>\n","protected":false},"author":4,"featured_media":51858,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7729,8039,7670,8030],"tags":[3351,4004],"class_list":["post-23698","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-activo-en-uk-2","category-antibiotic-reduction-en-uk-2","category-gut-health-en-uk","category-poultry-en-uk","tag-activo-en-uk","tag-phytomolecules-en-uk"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.5 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Phytomolecules: Boosting Poultry Performance without Antibiotics<\/title>\n<meta name=\"description\" content=\"Antibiotic reduction is needed to mitigate AMR. 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