NC-1

Phytogenic feed additives are gaining attention as potential alternatives to enhance broiler growth performance and feed efficiency. The experiment investigated the effects of supplementing broiler diets over 35 days with two levels of Fibrafid (0.15 % and 0.25 %) under two dietary regimes: normal amino acid density and metabolizable energy (ME) levels (referred to as positive control diet plus Fibrafid: PC1+0.15 % or PC1+0.25 % Fibrafid) and diets with a 5 % reduction in amino acid density and a 1.5 % reduction in ME (referred to as negative control diet plus Fibrafid: NC1+0.15 % or NC1+0.25 % Fibrafid) on performance parameters and carcass attributes of Ross 308 broilers. These were compared to standard positive control diets (PC1 and PC2, without or with TURBO Grow) and negative control diets (NC1 and NC2, without or with TURBO Grow). Performance indicators were estimated during 0-9, 11-23, 24-35, and 0-35. On day 35, the carcass characteristics and jejunal histopathology were evaluated. Results demonstrated significant improvements in body weight gain and feed conversion ratio (FCR) with Fibrafid inclusion, particularly at 0.25 % over trail. Fibrafid supplementation compensated for reduced dietary energy and protein, leading to improved growth performance, and gizzard and Bursa weights compared to negative control diets. Compared to NC1, the PC1+0.25 % Fibrafid show a significant improvement in jejunal villus morphology, leading to an increase in villus width, height, surface area, and goblet cell density by 5.3 %, 4.8 %, 12.5 %, and 56.7 % respectively. In conclusion, Fibrafid supplementation positively impacts growth performance and intestinal structure, potentially improving nutrient absorption, and jejunal integrity in broilers, proving Fibrafid's promise as a viable option in modern poultry nutrition.

Phytophthora species are highly destructive soilborne oomycetes pathogens that spread through infested soil and water. Ochrobactrum pseudogrignonense NC1 has been shown to inhibit plant parasitic nematodes via volatile organic compounds (VOCs). In this study, we investigated the inhibitory effect of O. pseudogrignonense NC1 against four Phytophthora species on agar plates and in vivo bioassay. We found that NC1 significantly inhibited the mycelial growth and zoospore production of all four species of Phytophthora in a dose-dependent manner. The half maximal inhibitory concentration (IC₅₀) values for inhibition of mycelial growth (or zoospore production) were 26% (14.8%), 18.9% (14.2%), 20.3% (8.3%) and 46.9% (4%) for Phytophthora capsici Leonian, Phytophthora infestans, Phytophthora parasitica var. nicotiana and Phytophthora sojae, respectively. The biocontrol efficiency of NC1 was 46.3% in pepper seedlings against P. capsici, almost 100% in potato tubers against P. infestans, 60% in tomato leave against P. parasitica and 100% in soybean leave against P. sojae, respectively. Our findings suggest that O. pseudogrignonense NC1 has great potential as a biocontrol agent for managing Phytophthora diseases.