In broiler chickens, in corn or wheat basal diets with different wheat bran content (0 vs. 5%), supplemented with “xylanase + xylooligosaccharide” complex enzymes, the results showed that the complex enzymes increased the glucose transporter expression, reduced the content of oligosaccharides in the ileum, and reduced the protein content in the cecum, which are beneficial to the intestinal health of broilers.
Feeding different levels of sodium mono hydrogen sulfate (MSP) and phytase in broiler chickens, it was found that with increasing levels of MSP & phytase, body weight gain, feed conversion ratio, ileal phosphorus digestibility, and bone strength and bone ash content, All showed a linear or quadratic increase (day 11 and day 18), indicating that appropriate supplementation of MSP or phytase can improve broiler growth performance, ileal phosphorus digestibility, and bone performance.
In rearing chickens (4-16 weeks old), supplemented with ground almond hulls and cellulase-xylanase enzyme, the results showed that at 4-8 weeks, 6% and 9 % almond shell meal reduced the feed conversion rate without affecting feed intake and body weight; in the 8-16 period, the group supplemented with 6% almond shell meal without enzyme added had better daily gain than the enzyme added group.
The effect of different thickness ratios of limestone (40F:60C vs. 15F:85C) and different levels of phytase (0, 400, 1500FTU) on 60-80-week-old laying hens were studied. Egg production, feed intake, eggshell strength, non-marketable eggs, inositol decomposition, and gizzard pH all have an impact; among them, the combination of “limestone ratio 40F:60C + phytase 1500 FTU” is the most beneficial Eggshell strength, while “15F:85C + 0 FTU” will reduce the number of eggs per day. A limestone ratio of 40F:60C reduces unmarketable eggs when phytase is not considered.
Supplementing broilers fed low-protein diets with a novel protease (multi-component protease) improved growth performance and nutrient metabolism, leading to higher economic returns in the context of commercial organic broiler farms.
In broiler chickens, the effect of a novel ß-mannanase alone or in combination with xylanase + ß-glucanase on energy efficiency was evaluated, and it was found that, on the basis of the use of phytase Above, adding ß-mannanase alone can release +30 Kcal/kg of energy; when added together with “xylanase and ß-glucanase,” it can release +73Kcal/kg of energy.
This is an in vitro test. It was found that the “phase endolysin” expressed by the transgenic Saccharomyces cerevisiae has a more obvious inhibitory effect on hemolytic Clostridium perfringens. Next, animal tests are needed to further verify its antibacterial effect in vivo effect.
In broilers fed different energy (control group vs. low energy group, -125 kcal/kg ME) corn-soybean meal-DDGS diet, carbohydrate complex enzyme (MCE, multi-carbohydrase enzyme) or “MCE+plant acids,” which can restore the growth performance of the low-energy group and improve the carcass traits of broilers.
Evaluate the effect of a new type of phytase alone or combined with enzymes (xylanase + amylase + protease XAP) on broiler chickens. The results show that adding phytase alone or together with XAP can effectively improve the growth performance of broilers, bone ash, and ketone body traits, contributing to the sustainability of broiler production.
Evaluation of a new phytase: In terms of stability, when the granulation temperature was 39°C, 63°C, and 79°C, the phytase activity was 88%, 91%, and 74%, respectively; Supplementation of phytase (500, 1000, 1500 FTU/kg) with a low calcium diet (-0.2% aP, -0.22% Ca) linearly increased bone ash, tibial phosphorus content, and apparent ileal digestibility of phosphorus at 500 FTU/kg The addition of kg can help broilers restore growth performance, tibia phosphorus content, reduce feed costs, and reduce phosphorus emissions.
In broiler chickens fed a corn-soybean meal diet, supplementation with 125 mg/kg carbohydrate improved the energy utilization of soybean meal by broilers.
Evaluate a new phytase, in terms of stability, when the conditioning temperature is 75, 80 ℃, the activity can retain 85%, 81%; in terms of animal experiments, adding different levels of phytase can improve the phosphorus content Apparent ileal digestibility, shin bone ash, and growth performance of 0-42-day-old broiler chickens.
Adding “Fumonisin esterase” to the diet containing fumonisin (FUM) can effectively reduce the content of fumonisin in the digestive tract by converting FUM into non-toxic hydrolyzate. Indicator markers (sphinganine/sphingosine ratio) were also significantly lower.
In broiler chickens fed wheat diets, xylanase supplementation increased body weight gain and helped improve water retention.
In turkeys, supplementation with a novel phytase (1500 or 3000 FYT/kg) improved growth performance, feed conversion ratio, and tibia ash content.
The phytase activity was measured under different buffer and pH conditions, and it was found that the phytase activity of the three transgenic microalgae (PBM3-F3, PBM2-F22, PLRI-F3) increased by 14- 65%; among them, PBM3-F3 microalgae had the highest phytase activity.