ABSTRACT The objective was to evaluate the effects of calcium oxide (CaO) and a mixture of corn heavy steep water and sugarcane molasses (HM) on the fermentation, aerobic stability, and ruminal disappearance of corn husk silage. Three doses of CaO (0, 20, and 40 g/kg of fresh matter (FM)) and three doses of HM (0, 100, and 200 g/kg of FM) were arranged factorially and applied to rehydrated corn husk (500 g/kg moisture) in a completely randomized design, with four […]

ABSTRACT The objective of this study was to evaluate the effects of two different dry matter contents at ensiling on the chemical composition, fermentation products, microbial profile, and aerobic stability (AS) of wilted ryegrass (Lolium multiflorum L.) silages, with or without microbial inoculants. The ryegrass was wilted in the field until it reached 32 or 45% DM. In addition to DM contents, the effect of adding or not adding microbial inoculants to the forage was evaluated, resulting in the following […]

ABSTRACT The objective of this study was to assess the effect of corn silage particle size on feeding behavior, blood parameters, fecal characteristics, and growth performance of beef heifers. Corn silage was harvested at 37.9 ± 1.6% dry matter (DM) using a self-propelled harvester containing shredding rolls and set to either a 13-mm theoretical length of cut (TLC), designated as conventional particle size (CPS), or a 24-mm TLC, designated as long particle size (LPS). Ninety-six Nellore heifers (initial shrunk body […]

ABSTRACT The study aimed to assess the effects of pre-exposure to lavender aromatherapy on horse behavior in stalls and during therapy sessions at the Equine Therapy Center of Cavalo Crioulo/IFRS. Eight therapy horses underwent three control (water diffusion) followed by three aromatherapy trials (water + five drops of diffused lavender essential oil for 30 min) in the stalls. Each trial was on a separate day/week over six consecutive weeks. Total time spent (min) and frequency of behavior in the stalls […]

ABSTRACT To conduct an optimal breeding and selection program, it is necessary to understand the genetic underpinnings of the desired traits. Early growth is an indicator of future success in the production and reproduction of buffaloes. This study aimed to estimate the (co)variance components for growth traits of Anatolian buffalo calves in Yozgat by employing six animal models with the different combinations of additive genetic, maternal genetic, maternal permanent effects, and covariance between offspring and dam. Birth weight (BW), six-month […]

ABSTRACT The objective of this study was to investigate the potential carryover effect of narasin (NAR) supplementation during the backgrounding phase on subsequent feedlot performance and gastrointestinal morphometrics of finishing Nellore bulls. Ninety-six bulls were used in a 2 × 2 factorial design, evaluating conditional NAR supplementation on the backgrounding phase (control [CON] or NAR) and finishing supplementation (sodium monensin [MON] or NAR), resulting in four treatments as follows: 1) CON+MON, 2) CON+NAR, 3) NAR+MON, and 4) NAR+NAR. During the […]

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 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 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 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 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 […]