2016
DOI: 10.1590/18069061-2015-0082
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Abstract: KeywordsWaste ratio, total and thermotolerant coliforms, phosphorus, nitrogen, potassium. ABSTRACTThis study evaluated the effects of the dietary inclusion of an enzyme blend and a direct-fed microbials in broiler diets on litter production and quality. In total, 900 Cobb 500 ® broiler chicks were distributed according to a completely randomized design into 4 treatments and 9 replicates of 25 birds each. Broilers were reared from 1 to 42 days of age. The treatments consisted of the following diets: NC: negat… Show more

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“…Nutrition accounts for up to 70% of production costs in poultry farming. For this reason, studies in this field have focused on discovering new strategies to improve the utilization of feed ingredients, thereby increasing productivity rates and the feed efficiency of broilers (Praes et al, 2016). Plant essential oils can be an interesting option to improve feed efficiency and, consequently, animal performance, due to their functional and digestive properties that enhance nutrient utilization, allowing the animals to express their maximum genetic potential for meat production (Hafeez et al, 2015).…”
Section: Introductionmentioning
confidence: 99%
“…Nutrition accounts for up to 70% of production costs in poultry farming. For this reason, studies in this field have focused on discovering new strategies to improve the utilization of feed ingredients, thereby increasing productivity rates and the feed efficiency of broilers (Praes et al, 2016). Plant essential oils can be an interesting option to improve feed efficiency and, consequently, animal performance, due to their functional and digestive properties that enhance nutrient utilization, allowing the animals to express their maximum genetic potential for meat production (Hafeez et al, 2015).…”
Section: Introductionmentioning
confidence: 99%
“…Decreased poultry production, digestive tract diseases, increased activity of New Castle Diseases virus, and Escherichia coli bacteria are to name some of the negative effects of ammonia (Ritz et al 2004). Efforts to reduce ammonia production from chicken excreta have received special attention from poultry nutritionists through the use of enzymes (Praes et al 2016), probiotics (Mahardika et al 2019, and bioactive substances from plants (Jenny et al, 2012). The modus operandi of decreasing ammonia production can occur through increasing the digestibility of protein which is the source of the raw material for ammonia and reducing the production of bacteria that can produce urease and uricase (Ritz et al 2004).…”
Section: Introductionmentioning
confidence: 99%