ABSTRACT This study evaluated the effects of supplementing drinking water with an acidifier blend on growth performance, serum biochemical profile, and gastrointestinal microbial counts of broilers. A mixture containing phosphoric, citric, and tartaric acids was supplied at 0, 60, or 150 mL/1000 L of drinking water during specific production phases. A total of 320 Cobb male broilers were allocated in a completely randomized design with eight replicates of 12 birds each. The acidifier progressively reduced drinking water pH values (5.54, […]

ABSTRACT The study was carried out with the objective of investigating the enrichment of weaned piglet diets with selenium proteinate (SeP) and sodium selenite (SeS) at two inclusion levels. A total of 40 piglets, averaging 6.60 ± 1.06 kg, were assigned to five dietary treatments: a control diet, and diets supplemented with selenium proteinate (0.15 or 0.30 mg/kg) or sodium selenite (0.15 or 0.30 mg/kg). The SeP-0.30 diet reduced average daily feed intake (ADFI) (P

ABSTRACT The aim of the study was to evaluate the inclusion of carotenoids in the diet of layers on the production performance, quality and oxidative stability of eggs during storage. A total of 240 Dekalb White laying hens, 76 weeks of age, were used. The hens were allocated in completely randomized design with eight diets (control diet (CD); astaxanthin (AXT), 10 mg kg⁻1; lutein (LUT), 10 mg kg⁻1; lycopene (LYC), 10 mg kg⁻1; AXT + LUT, 10 mg kg⁻1 each; […]

ABSTRACT The effects of dietary supplementation with enzymatic complexes and plant extracts on weaned piglets were evaluated. Sixty piglets (28 days old) were assigned to six treatments: Control diet (CD); CD with 125 g/ton of Yucca schidigera extract (CDY); CD with 200 g/ton of enzymatic complex (CDE); CD with 400 g/ton of multi-enzymatic complex with emulsifier (CDME); CDE + 125 g/ton YSE (CDE+Y1) and CDE + 250 g/ton YSE (CDE+Y2). Piglets on the CDE+Y1 diet had better feed conversion ratio […]

ABSTRACT The objective of this study was to evaluate the inclusion of high-protein dried distillers’ grains (HP-DDG) in broilers’ diets. A total of 1,200 one-day-old male chicks were weighed and distributed among six treatments, with ten replicates of 20 birds each. The experimental period was divided into three phases: starter (1–21 days), grower (21–33 days), and finisher (33–43 days). The treatments consisted of six dietary levels of HP-DDG in the starter, grower, and finisher phases as follows: T1: 0%; T2: […]

ABSTRACT This study aimed to evaluate the effects of lysine (Lys) restriction on compensatory growth, body composition, and nitrogen balance of growing-finishing pigs before and after immunocastration. Sixty-four entire male pigs (39.2 ± 6.8 kg) were randomly assigned one of four treatments: Control diet (CON; no restriction) or diets with restriction of Lys level in 14 (Lys-14), 28 (Lys-28) and 42% (Lys-42) of estimated Lys requirements for entire growing pigs (Lys restriction phase, from 0 to 28 d). From 29 […]

ABSTRACT This study used a systematic review and meta-analysis to evaluate a model for estimating the available phosphorus (aP) requirements of broilers. Databases (PubMed, Scopus, and Web of Science) were searched using the PICo methodology, including 90 studies from 1997–2023. The variables analyzed included performance (average daily gain (ADG) and feed efficiency (FE)) and bone traits (tibia P, ash, and shear force), expressed relative to the highest response in each study. The aP levels were compared to the Brazilian Tables […]

ABSTRACT Laying hens’ gut health and microbiota are directly linked to their productivity, egg quality, and overall welfare. This study evaluated the impact of different fiber sources on the performance Dekalb laying hens (63 to 71 weeks of age) and egg quality at 67 and 71 weeks. At the end of the trial (71 weeks), organ development was assessed, and the cecal microbiota was characterized using 16S rRNA sequencing. Birds were divided into four groups: a diet with elephant grass […]

ABSTRACT This study aimed to evaluate the effect of functional amino acid and mineral supplementation on growth performance, carcass characteristics, meat quality, and fatty acid profile of finishing pigs. One hundred and twenty castrated male pigs with an initial weight of 59.7 ± 2.7 kg were used, distributed into four dietary treatments: control; amino acids, control + 0.5% Arg and 0.5% Leu; minerals, control + 0.1% Cr and 0.05% MgO, and amino acids + minerals. From 127 to 159 days […]

ABSTRACT The objective of this study was to investigate the effects of supplementation with the ethanolic extract of Myrciaria cauliflora peels and seeds on the performance and intestinal health of broilers inoculated with Salmonella Heidelberg and reared until 28 days old. Three hundred thirty-six one-day-old male broiler chickens were distributed in a completely randomized design with four treatments and seven replications each: NC – negative control, which received a 0.85% sterilized saline solution in the crop; EJ – group that […]