http://localhost:8080/handle/123456789/2684 2026-04-18T16:16:48Z http://localhost:8080/handle/123456789/5191 EFFECTS OF BACTERIOPHAGE SUPPLEMENTED DIET ON INTESTINAL BENEFICIARY MICROFLORA AND PRODUCTIVE PERFORMANCE OF BROILER NAIN, MD.ZULKAR The Experiment was done to investigate the effects of dietary bacteriophage (BP) supplementation on production performance and status of microflora in excreta along with carcass characteristics in broilers. A total of 600 day old broiler chicks were reared randomly allotted in 5 treatment groups having 4 replications R 1, R 2, R 3 and R .Where each replication contain 30 birds for 5 weeks at SAU Poultry Farm, Dhaka-1207.These dietary treatments were designed as T 0 (Control diet), T (Control+ 0.5g Bacteriophage per kg feed),T 2 (Control+ 0.75g Bacteriophage per kg feed ) ,T 1 (Control+1g Bacteriophage per kg feed) and T 4 3 ( Control+ANT 0.05g per Kg Feed). In broilers the inclusion of antibiotic and bacteriophages directly affect the feed intake (P= 0.002) among the five groups.BWG (Body Weight Gain) in T group was higher(2209.00 ±16.45 gm) which showed significant differences (P<0.05) among the other groups. LW (Live weight), FC( Feed Consumption) and FCR(Feed Conversion Ratio) at the end of 5 1 th week were significant (P< 0.05) in different group, however better BWG, LW, FC were found in treated group T where BWG, LW and FC were 2209.00 ±16.45 gm , 2251.00±16.45 gm & 3069.00±22.70 gm respectively. Whereas FCR performance was positively correlated with the levels of bacteriophage given in the diet. Highest FCR (1.39 ± 0.02) found in T treatment. However, there are insignificant effect found in survivability (P >0.05) at 35 days of age of broiler .Bacteriophage group showed significant results in case of liver ,spleen, heart & breast weight compared to control and antibiotic except the gizzard weight . Results demonstrated that the average ammonia level was same at the end of the 1 week , however it varied significantly (P<0.05) at the 3 rd & 4 th weeks of age (10.10±0.57 ppm & 13.75 ± 1.02 ppm). But at the end of 5 th week T 2 & T group showed highest ammonia emissions (18.50± 0.65 ppm & 18.25± 0.85 ppm respectively). Ammonia emissions were found lowest in T 1 3 (13.25±1.38 ppm).Flock uniformity demonstrated significant differences between the control and T Group (67.72± 4.27 %.).The lactobacillus was significantly (P<0.05) lower in antibiotic and control group rather than the bacteriophage supplemented diet . T 1 1 showed highest lactobacillus (3.97 ± 0.13 CFU/ml) and T showed the lowest (0.43± 0.07 CFU/ml). In conclusion, it can be said that , bacteriophage supplementation has beneficial effects on production performance of broiler and it can expand the beneficiary microbes in guts of commercial broiler chicken. A Thesis Submitted to the Department of Poultry Science Sher-e-Bangla Agricultural University, Dhaka In Partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN POULTRY SCIENCE 2022-01-01T00:00:00Z http://localhost:8080/handle/123456789/5190 INVESTIGATION OF VITAMINS AND SELENIUM ON PRODUCTION AND REPRODUCTIVE PERFORMANCE OF INDIGENOUS PIGEON JANNAT, TAYEABA Today the use of insecticides, pesticides, etc. in the crop field and the unavailability of croplands due to urbanization causes a major threat to pigeon farming in the extensive system. So, now it is time to give attention to commercial farming through the intensive method of pigeon housing. The goal of this research work was to investigate the vitamins and selenium on the growth and reproductive performance of indigenous Gola pigeon in the confinement-rearing system. A total of 16 pair of (3-month-old) pigeons for a period of 9 month were used in the experiment. Pigeons were randomly distributed into 4 treatment groups; T 0 (Control), T 1 (Basal diet + Vitamin A, D, E & Se), T 2 (Basal diet + Vitamin B-complex) and T 3 (Basal diet + Vitamin A, D, E & Se + Vitamin Bcomplex) having 4 replication. In this study, feed intake (FI) and live weight (LW) at 23 week showed no significant differences (P>0.05) among the treatments. However, significant differences (P<0.05) were found for LWG and the growth rate of pigeons at 12 to 23 week of age. The highest LWG and growth rate were observed in the T 3 group (87.75g and 34.23%) which was treated with vitamins A, D, E, Se and B-complex, whereas the lowest was in the T 2 group. No significant differences (P>0.05) were observed in various treatments for the following parameters; egg production, egg weight, hatchability and hatch percentage. But the highest hatchability (90.63%) was noticed in the T 2 groups. There was no significant difference (P>0.05) observed for the day-old weight of the squab. However, significant differences (P<0.05) were found in weekly live weight (LW), live weight gain (LWG), weekly growth rate (GR) and dressing percentage (DP) of squab due to different supplementations. The highest LW noticed in the T 3 group was 159.35, 218.34 and 274.05g, respectively for the 1 and 3 rd week of squab. The maximum growth rate of squab was detected in the 1 week, followed by the 2 nd and 3 rd weeks of age. Maximal DP was found in T 3 (61.90%) and then followed by T 0 (61.54%), T 1 (59.86%) and T 2 (58.13%) groups. Whereas survivability rate and FCR were not significantly influenced (P>0.05) by different treatment groups. Yet, better FCR (4.36) was obtained in the vitamins A, D, E, Se and B-complex treated group than in other supplemental groups. Analyzing the above research findings, it was obtained that pigeons fed with vitamins A, D, E, Se and Bcomplex (T 3 ) achieved superior results than others and had a very effective impact on the growth and reproductive performance. A Thesis Submitted to the Faculty of Animal Science and Veterinary Medicine, Sher-e-Bangla Agricultural University, Dhaka, in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN POULTRY SCIENCE 2022-01-01T00:00:00Z http://localhost:8080/handle/123456789/5189 IMPACT OF VITAMINS AND SELENIUM ON PRODUCTION PERFORMANCE AND IMMUNITY IN GOLA PIGEON MAHMOOD, JESMIN In the growing poultry industry, pigeon farming is an important agribusiness in Bangladesh. According to most pigeon owners, common health issues in pigeons include pigeon pox, Newcastle disease, salmonellosis, and the common cold. An experiment was conducted to estimate the impact of different combinations of vitamins and Selenium (Se) on the production performance and immune response against the Newcastle disease vaccine. A total of 16 pair of Gola pigeon (3 months old) were randomly assigned to 4 treatment groups namely; T0 (Control), T1 (Basal diet + Vitamin A, D, E & Se), T2 (Basal diet + Vitamin B-complex), and T3 (Basal diet + Vitamin A, D, E, B-complex & Se) having 4 replications. The treatment groups (T1, T2 and T3) were vaccinated with the Ranikhet disease vaccine and the control group was kept unvaccinated. Performance indices indicated non-significant (P>0.05) differences in final live weight, live weight gain and feed consumption. Statistical analysis revealed non-significant (P>0.05) differences in egg weight values. However, significant (P<0.05) differences were found for egg production, shape index and hatchability in the T1 (23.75), T3 (76.29) and T2 + T3 (87.50) groups respectively. The hemagglutination inhibition titers of the experimental birds were significantly (P<0.05) different and higher individual titer was found in the vitamin A, D, E and Se supplemented T1 group (272). The thymus length and width were the best in group T1, 12.75 and 4.25 respectively with a significant (P<0.05) difference. From the study, it can be concluded that supplementation of vitamin A, D, E and Se combination gave a better humoral immune response against Newcastle disease vaccine, egg production, thymus length and width; supplementation of vitamin B-complex separate supplementation gave only a better response to egg hatchability, and supplementation of vitamin A, D, E, Bcomplex, and Se combination gave better performances in egg shape index and hatchability. A Thesis Submitted to the Faculty of Animal Science and Veterinary Medicine, Sher-e-Bangla Agricultural University, Dhaka-1207 in Partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCE (MS) IN POULTRY SCIENCE 2022-01-01T00:00:00Z http://localhost:8080/handle/123456789/4799 EFFECT OF COVID-19 PANDEMIC ON MARKET PRICE OF CHICKEN AND CHICKEN PRODUCTS IN BANGLADESH RAIHAN, MD. ABU The study aims to investigate how the COVID/19 pandemic has impacted the price of chicken and chicken products. The current study was conducted using secondary data collected from a relevant online database of poultry news portals. Data from one year were collected of which six months were from the pre-COVID period (JulyDecember/2019) and six months from the COVID period (July-December/2020). A structural questionnaire was prepared to collect the market price of chicken and chicken products from eight divisions of Bangladesh. To collect the data 4 days of the month were considered randomly taking a day from each week. Total (4 days x 6 months x 8 divisions) 192 days of data were collected taking 48 days each from preCOVID and COVID periods. Therefore, the plan was to collect a total of (192x2) 384 days of data for the study. The results showed that the average wholesale price of live birds (Broiler chicken, culled white chicken and Sonali chicken), Shell eggs (Brown and White) and Day-Old-Chicks (Brown, White layer and Broiler chicks) fluctuated due to the COVID-19 pandemic, but no significant (p>0.05) difference was found in prices except live culled red chicken. The average wholesale price of culled red chicken in Chattogram was 171.12±19.67 from July to December 2019 and 195.34±35.70 from July to December 2020. In Khulna and Rajshahi the wholesale price of brown shell eggs decreased whereas in Dhaka, Barishal and Chattogram the price was upward, but it remained unchanged in Mymensingh, Sylhet and Rangpur during the COVID pandemic. The wholesale price of white shell eggs in Dhaka, Khulna and Rajshahi showed decreasing trend during the pandemic but increased in Chattogram. The wholesale price of white layer chicks was lowered by 21.43Tk, 23.79Tk and 31.03Tk in the COVID period than the pre-COVID period in Dhaka, Barishal and Rangpur, whereas minor price fluctuation was observed in brown layer and broiler chicks. The wholesale price of Sonali chicks was 15.67±3.50 in Rangpur during the pandemic. The study concluded that the COVID-19 pandemic had a negative impact on the poultry industry. A Thesis Submitted to the Department of Poultry Science Sher-e-Bangla Agricultural University, Dhaka-1207 In partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN POULTRY SCIENCE SEMESTER: JULY-DECEMBER/2021 2021-12-01T00:00:00Z