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 […]

ABSTRACT The objective of this study was to evaluate in vitro effects on ruminal fermentation of by-product from the production of edible mushroom Pleurotus ostreatus. The following by-products were tested: (I) non-colonized sugarcane bagasse (control); (II) sugarcane bagasse from non-enriched mushrooms; and (III) sugarcane bagasse from selenium-enriched mushrooms. A semi-automatic in vitro system was used. The pH and neutral detergent fiber (NDF) residue were determined at 0, 3, 6, 9, 12, 18, 24, 48, 72, and 96 h of incubation. […]

ABSTRACT This study examined the effect of colostrum intake on pre-weaning mortality in piglets, focusing on neonatal vitality traits. Data from 2,050 piglets and 136 sows were collected from a commercial farm. Sows were monitored during gestation (parity, body condition, backfat thickness, weight gain, and gestation duration) and farrowing was monitored (duration, live births, mummified fetuses, stillbirths, maternal glucose, birth intervals, birth order, and sex). Neonatal traits (colostrum intake, meconium presence, umbilical rupture, rectal temperature, glucose, oxygenation, and heart rate) […]

ABSTRACT This study aimed to assess the productive performance and carcass characteristics of feedlot lambs fed corn grain silage rehydrated with different solutions. Twenty-eight Santa Inês ram lambs, approximately 75 days of age and with an average weight of 17.05±3.75 kg, were randomly assigned to one of four dietary treatments: dried corn grains (control); whey-rehydrated corn grain silage; water-rehydrated corn grain silage; and water + additive-rehydrated corn grain silage. For animal performance, dry matter intake, average daily weight gain, and […]

ABSTRACT This research aimed to evaluate the chemical composition and apparent digestibility coefficients (ADC) of dry matter (DM), gross energy (GE), crude protein (CP), and amino acids (AA) in plant and animal protein sources used in aquafeeds for tambaqui (Colossoma macropomum). Tested ingredients were soybean meal (SBM), cottonseed meal (CSM), corn gluten meal (CGM), fish meal (FM), meat and bone meal (MBM), and poultry by-product meal (PBM). A reference diet was formulated to contain 287 g kg−1 CP and 18.5 […]

ABSTRACT The aim of the study was to develop an index to measure sustainability in production systems. This sustainability index (iSus) was developed to be adhered to the Brazilian Pampa biome based on experts’ perceptions, in five regions of the Brazilian Pampa biome: Western border, Northwestern border, Campanha, Central, and South. The Sustainability Assessment of Food and Agriculture Systems guidelines, developed by the Food and Agriculture Organization, were used as reference for the indicators that formed the iSus. After selecting […]

ABSTRACT This study aimed to assess the ruminal fermentation of various cottonseed (Exp. 1) and peanut (Exp. 2) meals, each processed using different techniques and exhibiting varying levels of rumen undegradable protein (RUP). Six treatments were evaluated for each feed. For Exp. 1 (cottonseed meal): negative control (conventional meal; Ncontrol), microwave-heated (2 min) with 2% xylose, conventional oven-heated (90 min) with 2% xylose, autoclave-heated (8 min) with 2% xylose, tannin treatment (6% inclusion), and a commercial soybean-based product (Pcontrol). For […]

ABSTRACT This study aimed to evaluate the development of the gastrointestinal tract and organs in 18-days embryos (ED18) and newly hatched chicks from broiler breeders supplemented with conjugated linoleic acid (CLA), as well as the development of their progeny up to 7 days of age, which also received CLA supplementation in the pre-placement diet during the first 12 hours post-hatch. A total of 540 eggs from two Cobb500 breeder flocks, supplemented with either 0 or 0.025% CLA, were incubated, and […]

ABSTRACT In this study, we investigated the effects of using poultry offal meal (POM) produced in rendering plants by adding dissolved air flotation sludge (DAFS) at set ratios into broiler grower and finisher feeds. The experiment conducted within the scope of the study lasted six weeks and involved 12,000 broiler chicks from Ross 308 strain middle-aged (36 weeks) breeders. Twelve different treatments were used in grower feed with 2 or 3% POM and finisher and pre-slaughter feeds with 4 or […]

ABSTRACT This study aimed to evaluate the effects of thermal processing and different carbohydrate sources on performance, development of digestive organs, and pancreatic enzyme activity in broiler chicks during the pre-starter phase. The experiment was conducted in a completely randomized design with a 2 × 2 factorial arrangement (pelleting or extrusion processing, and corn or sorghum) and included six replicates of 15 chicks each. The experimental diets were provided only during the pre-starter period (1–7 d). From 8 to 21 […]