ABSTRACT The objective was to evaluate the structural traits and forage accumulation of elephant grass genotypes under two stubble heights. The experiment was conducted in a factorial scheme, with five genotypes (P 2022 S1, 1810, 2111, 2035 and BRS Kurumi) and two stubble heights (25 and 45 cm), in a randomized block design, with three replications, considering the rainy and dry periods. Forage accumulation of the rainy period was higher for genotype 2111 (P

ABSTRACT The objective of this study was to investigate the influence of nitrogen (N) input via fertilizer or through the inclusion of an N-fixing legume mixed with grass on canopy structural characteristics, forage production, and stocking rate in grazing systems. Three pastures type (PT), with Marandu palisadegrass (U. brizantha), were assessed: i) monoculture without N fertilizer application (Unfertilized); ii) monoculture fertilized with 150 kg N ha⁻1 year⁻1 (N-fertilized); iii) and mixed pasture with forage peanut (A. pintoi), without N fertilizer […]

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 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 LBu 01 – CGMCC 19250 strain of Lentilactobacillus buchneri (LB) in whole-plant corn silage (WPCS) during different storage periods. The experiment was conducted in a completely randomized design with a factorial arrangement of treatments (2 × 3), two inoculant levels (control – without inoculant, and experimental – inoculated with 9 log CFU LBu 01/kg of forage), and three storage periods (3, 15, and 62 days). Dry matter (DM) losses, aerobic […]

ABSTRACT The current study evaluated the impact of aerobic exposure time (ET) and microbial inoculants (MI) on the fermentative and microbiological characteristics and the nutritional value of relocated whole-plant corn silage (WPCS). Treatments were arranged in a 4 × 5 factorial design: microbial inoculants (without inoculant (WI); L. plantarum (DSM3676; DSM3677) + L. buchneri (DSM13573) (LPLB); L. plantarum (MA18/5U) + P. acidipropionici (MA26/4U) (LPPA); and L. buchneri (DSM13573) (LB)) and non-relocated (NR) or relocated after 12, 24, 48, and 60 […]

ABSTRACT The objective of this study was to assess the impact of incorporating vegetable oils into the in vitro fermentation of a tropical grass on the kinetics and digestibility of the fibrous fraction by rumen microorganisms. Treatments consisted of different inclusion levels (0, 2, 4, and 6% dry matter) of lipid sources, namely soybean oil, canola oil, and baru oil, mixed with tropical forage (Pennisetum purpureum Schum cv. Cameroon). A completely randomized design was employed, featuring a 3 × 4 […]

ABSTRACT The objective of this study was to evaluate the use of grazing management strategies (GMS) in rotational stocking to improve the canopy structure in mixed pastures of Marandu palisadegrass (Brachiaria brizantha cv. Marandu) and legume Macrotyloma axillare. Treatments consisted of combinations of defoliation frequencies (pre-grazing heights of 30 and 40 cm) and intensities (post-grazing heights of 15 and 20 cm) in a 2 × 2 factorial arrangement, corresponding to four GMS: 30-15, 30-20, 40-15, and 40-20 cm, allocated to […]

ABSTRACT This study aimed to characterize the response mechanisms and evaluate the resistance of Megathyrsus maximus hybrids to water deficit and waterlogging. The experiment was conducted in a greenhouse using a randomized block design with an 8 × 3 × 2 factorial arrangement. Treatments were a combination of eight genotypes of M. maximus, three water conditions (control, waterlogging, and water deficit), and two harvest times (20 days of water stress and 12 days post-recovery). Productive and morphological traits were evaluated […]

ABSTRACT We aimed to evaluate the effects of storage condition (SC) and storage time (ST) on the fermentative parameters and nutritional value of relocated whole-plant corn silage (WPCS) in plastic bags. A completely randomized design was used in a 2 × 5 factorial arrangement, with two SC (in the field without cover and in a barn as covered space) and five ST (10, 30, 60, 90, and 120 d), with four replications. Corn was harvested (321 ± 10.3 g kg−1 […]