No abstract

Antibiotics raise an issue concerning the development of antibiotic resistance of some pathogenic bacteria. The use of probiotics and Avian IgY in layer pullet farming is a better way of protecting against pathogenic bacteria and increasing production performance. Supplementation of Avian IgY antibodies and probiotics(Lactobacillus acidophilus, Streptococcus faecium, Bifido bacterium longghum, Bacillus thermophilum) were conducted on 5,724 healthy layer pullets to determine its effect on their growth and laying performance. The supplement was in powder form with a dosage of 100 mg per liter of water for 6 hours. The effect of the supplementation was evaluated by measuring production parameters on growth and laying performance of the layer pullets; there were 3 treatment groups, the control group, Treatment 2 which received 5 days initial supplementation for the first week and then twice every week for 9 weeks and Treatment 3 which received 5 days initial supplementation for the first week and then twice every 2 weeks for 9 weeks. Results showed that the supplementation had significant effects in the age in days when 50% of the total population per treatment laid their first eggs, average number of eggs produced, % Hen day production, % Hen house production, total weight of eggs, and feed conversion efficiency. It also showed that the supplementation is economical and yielded higher profit. On the other hand, the supplementation had no significant effect on the average body weight and mortality count of the layer pullets. The supplementation of Avian IgY antibodies and probiotics in water soluble powder via drinking water with 5 days initial supplementation of Avian IgY antibodies and probiotics for the first week; then twice every 2 weeks for 9 weeks has the greatest effects to increase the production performance and profitability of layers.Keywords:  Avian IgY antibodies, Growth performance, Laying performance, Layer pullets, Probiotics

The study was performed to determine the efficacy of dinotefuran in controlling housefly (Musca domestica) infestation on a commercial broiler farm. The efficacy of the two modes of application of the insecticide was compared to thiamethoxam. The experiment was divided into two groups with five treatments (T) and three replicates per treatment. The first group was scatter application composed of T1: control, T2: dry 20 g dinotefuran, T3: wet 20 g dinotefuran, T4: dry 20 g thiamethoxam, and T5: wet 20 g thiamethoxam. The second group was a paint-on application composed of T1: control, T2: 10 g dinotefuran with 10 g sugar, T3: 20 g dinotefuran, T4: 10 g thiamethoxam with 10 g sugar, and T5: 20 g thiamethoxam. Dead flies were counted after 15, 30, 60, and 120 minutes post-application. In the scatter group, the control was significantly different from dinotefuran and thiamethoxam, but no significant differences were observed between dinotefuran and thiamethoxam. Dinotefuran treatments from paint-on were significantly different from the other three treatments. Lastly, wet dinotefuran from the scattering bait group and dinotefuran treatments from paint were not significantly different. Wet and paint-on treatments of dinotefuran were effective for fly control in broiler farms.

The study was conducted to evaluate the effectiveness of the blend of enzymes, organic catalysts, and probiotics on the water quality of Pasig River and to determine its sustainability to aquatic life. The effects of varying the dosage of the mixture were also identified. The data observed were compared to the standard for fishery water set by the Department of Environment and Natural Resources (DENR). On-site application results were analyzed using paired t-test. All parameters were normally distributed. Temperature, phosphate, and BOD measures were significantly changed at (p<0.05). Results showed mixture effectiveness on temperature, pH, Chloride, Nitrate, TSS, Oil and Grease, and Surfactant as they passed the DAO 2016-08 Class C Standard. BOD, Phosphate, TSS, and Ammonia concentrations were reduced in Ayala samples. DO, Nitrate and Fecal Coliforms concentrations were reduced in Nagtahan samples. Varying the amount of mixture application yields no significant effect on the water quality. Fishes and aquatic life can still not thrive on this kind of water.

A four-week feeding trial was conducted to determine the effect of liquid toxin binder supplementation on the production performance of broiler chickens. A total of 400 seven-day-old Cobb broiler chicks were randomly distributed to four treatments following a Complete Randomized Design (CRD). The treatment groups consisted of the control group, continuous liquid toxin binder supplementation, reduced feed toxin binder inclusion, continuous liquid toxin binder supplementation, and intermittent liquid toxin binder supplementation. Each treatment was replicated four times with 25 chicks per replicate. The feeding trial was conducted from the age of 8th to 35th days of age. The acidifier used was a blend of activated charcoal, selenium, vitamin E, probiotics, prebiotics, mannan oligosaccharides, and bacterial cell wall components. The results showed significant effects (P<0.05) on the broilers' body weight gain, average daily gain, and feed efficiency from 8 to 14 days of age. Income over feed, chick, and medication cost of broilers was increased with continuous supplementation of liquid toxin binder and reduced feed toxin binder. This study indicates that continuous supplementation of liquid toxin binder and reducing the feed toxin binder is economically more advantageous to use in broiler production.