Faculty of Veterinary and Animal Science

THE DIETARY EFFECT GINGER (Zingiber officinale) AND GREEN TEA (Camellia sinensis) POWDER ON THE GROWTH AND MEAT YIELD PERFORMANCE OF BROILER

Fri, 01 Dec 2023 00:00:00 GMT

THE DIETARY EFFECT GINGER (Zingiber officinale) AND GREEN TEA (Camellia sinensis) POWDER ON THE GROWTH AND MEAT YIELD PERFORMANCE OF BROILER TIRKI, SHAMOL This study was conducted to determine the efficacy of the dietary effect of different levels of Ginger (Zingiber officinale) and green tea (Camellia sinensis) powder on growth performance and carcass traits of commercial broiler. The study was conducted at the Central Poultry farm of Hajee Mohammad Danesh Science and Technology University, Dinajpur during the period from 23 June to 20 July, 2023. A total of 120, day old broiler chicks (Hubbard-EP) were randomly and equally distributed to 4 groups having 3 replicates of 10 birds each. The birds were grouped as T0, T1, T2 and T3 group without Ginger and Green tea powder (control group), Ginger powder 0.5gm/kg feed, Green tea powder 0.5gm/kg feed and (Ginger powder 0.25g and Green tea powder 0.25g)/kg feed respectively. Body weight gains, Feed Conversion Ratio (FCR), mortality (%) and meat yield traits were recorded. The collected data were analyzed by using ANOVA with SPSS version 20. Feed intake (g/bird) was significantly (P<0.05) differed among the dietary treatment groups. The highest feed intake was significantly (P<0.05) higher in T3 (2190.16±33.22), followed by T1 (2176.97±41.4), T0 (2127.96±20.72) and T2 (2070.74±12) respectively. Body weight gain (g) and FCR were significantly (P<0.05) differed among the dietary treatment groups. The highest body weight gain (g) was observed significantly (P<0.05) higher in T2 (1561.63±16.79), followed by T3 (1509.51±6.11), T1 (1496.66±19.88) and T0 (1416.93±8.64), respectively. The highest FCR was found in T0 (1.50±2.40) and the lowest FCR in T2 (1.33±0.66), the intermediate in T1 (1.48±0.06) 1.45±2.08) and T3 (1.45±5.44), respectively. It was found that there was significant (P<0.05) difference among the dietary treatment groups in case of live weight (g), carcass weight (g), breast weight (g), thigh meat weight (g), but there was almost similar (P>0.05) among the dietary treatment groups in case of head weight (g), shank weight (g), liver weight (g), heart weight (g), spleen weight (g), intestine weight (g). Live weight, carcass meat weight, breast weight thigh weight was significantly (P<0.05) higher in treatment T2 group compared to control group T0. Mortality was found in T0 (3.33%) and in T2 (3.33%) dietary treatment groups during experimental period. Based on the result it could be concluded that green tea powder 0.5gm/kg feed may be used in broiler diet as growth promoter and it may also serve as an antioxidant. THE DIETARY EFFECT GINGER (Zingiber officinale) AND GREEN TEA (Camellia sinensis) POWDER ON THE GROWTH AND MEAT YIELD PERFORMANCE OF BROILER; A THESIS BY SHAMOL TIRKI, REGISTRATION NO.: 1404052, SEMESTER: January-June-2022, SESSION: 2022; MASTER OF SCIENCE (MS) IN POULTRY SCIENCE, DEPARTMENT OF DAIRY AND POULTRY SCIENCE, HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR-5200; DECEMBER, 2023.

COMPARISON OF ACIDIC AND ALKALINE WATER ON THE GROWTH PERFORMANCE AND CARCASS CHARACTERISTICS OF COMMERCIAL BROILER

Fri, 01 Dec 2023 00:00:00 GMT

COMPARISON OF ACIDIC AND ALKALINE WATER ON THE GROWTH PERFORMANCE AND CARCASS CHARACTERISTICS OF COMMERCIAL BROILER EMA, ESARATUZ ZAHAN This study was conducted to determine the comparative effects of acidic and alkaline drinking water containing Acetic acid and Sodium Bicarbonate on growth performance, feed conversion ratio (FCR), livability, mortality and carcass traits in commercial broilers. The study location was the Central Poultry farm of Hajee Mohammad Danesh Science and Technology University, Dinajpur, from 16 August to 12 September (28 days), 2023. A total of 210, day old broiler chicks (Efficiency Plus-Hubbard) were randomly and equally distributed to 7 groups having 3 replicates of 10 birds in each. The birds were grouped as T0, T1, T2, T3, T4, T5 and T6 group of which T0 was with normal water (control group) and T1, T2 and T3 drinking water was treated with 0.25ml/L, 0.33ml/L and 0.5ml/L Acetic Acid respectively. T4, T5 and T6 group was treated with Sodium Bicarbonate Powder at the rate of 0.5gm/L, 1gm/L and 1.5gm/L drinking water. Data were analyzed by using ANOVA with SPSS version 22. The highest environmental temperature during research period was 38.70C with 96% humidity. The feed intake (gm/broiler) at the age of 28 days in T0, T1, T2, T3, T4, T5 and T6 was 2327.33, 2362.33, 2330.66, 2323.00, 2235.33, 2412.00 and 2293.33, respectively. The live body weight in T0, T1, T2, T3, T4, T5 and T6 was 1609.00, 1772.00, 1741.33, 1698.00, 1653.33, 1727.00 and 1629.33, respectively. The feed conversion ratio (FCR) in T0, T1, T2, T3, T4, T5 and T6 was 1.44, 1.33, 1.34, 1.36, 1.35, 1.39 and 1.40, respectively. The carcass weight in T0, T1, T2, T3, T4, T5 and T6 was 986.00, 1051.33, 1041.33, 1022.00, 995.33, 1036.00 and 1002.00, respectively. In T0, T1, T2, T3, T4, T5 and T6 livability was 93.33%, 100%, 96.67%, 100%, 96.67%, 96.67% and 93.33% respectively and mortality was 6.67%, 0.00%, 3.33%, 0.00%, 3.33%, 3.33% and 6.67% respectively. Considering the above facts it may be concluded that Acetic Acid is better than Sodium Bicarbonate in production performance of commercial broiler and specifically supplementation of 0.33ml/L of Acetic Acid had positive significant effect on feed intake, live body weight, carcass weight, FCR, livability and mortality. Therefore, Acetic Acid can be used in broiler diet for better performance than Sodium Bicarbonate. COMPARISON OF ACIDIC AND ALKALINE WATER ON THE GROWTH PERFORMANCE AND CARCASS CHARACTERISTICS OF COMMERCIAL BROILER; A THESIS BY ESARATUZ ZAHAN EMA, Registration No. 1504035, Semester: July-December, 2023 Session: 2021-22, MASTER OF SCIENCE (MS) IN POULTRY SCIENCE, DEPARTMENT OF DAIRY AND POULTRY SCIENCE, HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR – 5200; DECEMBER, 2023.

MEAT YIELD, QUALITY AND CARCASS CHARACTERISTICS OF INDIGENOUS AND CROSSBRED CATTLE REARED UNDER IMPROVED FEEDING SYSTEM

Thu, 01 Dec 2016 00:00:00 GMT

MEAT YIELD, QUALITY AND CARCASS CHARACTERISTICS OF INDIGENOUS AND CROSSBRED CATTLE REARED UNDER IMPROVED FEEDING SYSTEM SIDDQUE, MD. ABU BAKKUR A study was conducted to develop suitable and cost effective feeding system for improving performance and meat quality of indigenous and crossbred (HF × L) cattle of Bangladesh. After conducting a baseline survey on the existing feeding and management systems of indigenous and crossbred cattle, and the socio-economic conditions of the farmers, 40 farmers were selected for the fattening program from two villages (Kathalbaria and Char Faridpur) of Raiganj upazila of Sirajganj district. Twenty indigenous bulls (average body weight 208.08 ± 13.98 kg) and twenty crossbred (L × HF) bulls (average body weight 256.26 ± 26.85 kg) of 24 months of age were divided into four equal groups were fed on four diets (T0, T1, T2 and T3) up to 120 days, where T0 referred to the conventional diet and T1, T2 and T3 referred as improved diets. Required DM for individual animal was supplied by roughage and concentrate sources of the ration in the ratio of 2:1. Local grass and paddy straw were supplied to group T0 and T1, Napier grass and straw to group T2, and Napier grass, straw and Ipil ipil leaf to group T3 as roughage; whereas concentrate was supplied as 1.5% of live weight. The results revealed that, total DM intake, FCR and ADG of experimental animals were affected (p<0.01) by feed treatment, breed, and interaction of breed and feed treatment. Crossbred bulls of diet group T3 showed the highest DM intake (11.07 kg/d) and ADG (1.17 kg), and the lowest FCR (9.48); while indigenous bulls of group T0 showed the lowest DM intake (5.32 kg/d), ADG (0.27 kg) and the highest FCR (19.7). Breed type and feed treatment interaction had significant (p<0.01) effect on pre-slaughter body measurements, carcass yield characteristics, and most of the parameters for yield of primal cuts and non-carcass components of the experimental animals. Feed treatments also affected (p<0.01) different pre-slaughter body measurements, carcass yield characteristics, weights of most of the primal cuts as percent of chilled carcass weight of indigenous bulls, and most of the parameters for yield of non-carcass components. Different body measurements, carcass yield parameters and non-carcass components were significantly higher (p<0.01) for crossbred bulls than the indigenous bulls, but yield of primal cuts did not affected (p>0.05) by breed type. The highest retail cut percentage (54.59%, yield grade-1.00) was found for group T3 of crossbred bulls and the lowest retail cut percentage (52.45%, yield grade 1.97) was found for group T0 of native bulls. Among different physical properties of meat breed and feed treatment interaction significantly affected cooking loss (p<0.01), marbling score (p<0.05) and color score (p<0.01); but did not affect (p>0.05) meat pH and drip loss. Feed treatments had no significant effect on physical properties of meat of indigenous bulls, except effect (p<0.01) on cooking loss and color score of meat of crossbred bulls. Cooking loss and marbling score of meat were significantly higher (p<0.01 and p<0.05) for crossbred bulls than the native bulls, while meat pH, drip loss and color score were not affected (p>0.05) by breed type. Breed and feed treatment interaction had significant effect (p<0.01) on proximate compositions of meat, but the proximate compositions did not vary significantly (p>0.05) among different feed treatment groups. Moisture content was higher (p<0.01) for meat of crossbred bulls, while protein, fat and ash content of meat was lower (p<0.01) in crossbred bulls than the native bulls. The sensory properties of beef i.e. the tenderness, chewiness, fineness, beef flavor intensity and color of beef from indigenous bulls were higher than the crossbred bulls although not significant (p>0.05); which caused higher (p<0.05) overall acceptability of meat for indigenous bulls than the crossbred bulls. Total viable count (TVC) of beef ranged from 3.63 log10 CFU/g to 4.90 log10 CFU/g (P<0.01) among different feed treatment groups of indigenous and crossbred bulls, but did not exceed the recommended safe limit of ICMSF (1986) for beef. Feed cost per day (BDT/d), feed cost per kg LW gain (BDT/kg LWG), total cost (BDT) and net return (BDT) were also affected (p<0.01) by feed treatments, breed type and interaction of breed and feed treatment. Indigenous and crossbred bulls fed diet T3 had comparatively higher daily feed cost (76.66 and 112.9 BDT/d, respectively), and lower feed costs per kg LW gain (BDT 156/kg LWG and BDT 96.78/kg LWG, respectively); while lower daily feed costs (45.99 and 59.26 BDT/d, respectively), and higher feed cost per kg LW gain (169.94 and 130.86 BDT/kg LWG, respectively) were found for diet T0. Both for indigenous and crossbred bulls, diet T0 showed significantly (p<0.01) lower total costs (33305.2 BDT and 47577 BDT, respectively) and net returns (622.8 BDT and 2324.8 BDT, respectively), while improved diet (T3) showed significantly (p<0.01) higher total costs (42569.8 BDT and 56563 BDT, respectively) and net returns (2951.6 and 6683 BDT, respectively) in this cattle fattening program. Crossbred bulls showed significantly higher (p<0.01) total cost and net return than the indigenous bulls. So considering all the above findings, it may be concluded that fattening of indigenous bulls could be suitable for production of better quality beef meat with lower cooking loss, marbling, prime color, higher protein, fat, ash content and consumer acceptability. But, crossbred (HF × L) bulls treated with improved diet T3 (rice straw + Napier grass + concentrate + Ipil ipil leaf) could be more effective and economically feasible for beef cattle production in Bangladesh. MEAT YIELD, QUALITY AND CARCASS CHARACTERISTICS OF INDIGENOUS AND CROSSBRED CATTLE REARED UNDER IMPROVED FEEDING SYSTEM; A Dissertation Of DOCTOR OF PHILOSOPHY By MD. ABU BAKKUR SIDDQUE, Registration No.: 0905093, Session: 2013, Department of General Animal Science and Nutrition, Faculty of Veterinary and Animal Science, Hajee Mohammad Danesh Science and Technology University Dinajpur-5200; December, 2016.

INVESTIGATION ON FOWL ADENOVIRUS (GROUP 1) CIRCULATING IN BANGLADESH AND MOLECULAR CHARACTERIZATION OF SPECIFIC SEROTYPES ASSOCIATED WITH INCLUSION BODY HEPATITIS

Sat, 01 Jun 2024 00:00:00 GMT

INVESTIGATION ON FOWL ADENOVIRUS (GROUP 1) CIRCULATING IN BANGLADESH AND MOLECULAR CHARACTERIZATION OF SPECIFIC SEROTYPES ASSOCIATED WITH INCLUSION BODY HEPATITIS Islam, Mohammad Nazrul Fowl adenoviruses (FAdVs) cause numerous diseases resulting in economic losses to the poultry industry worldwide. Several FAdV serotypes cause inclusion body hepatitis in chicken. Although FAdV infection was suspected, there was no confirmatory report from Bangladesh. The study was conducted to investigate the FAdV infection and specific antibodies in chicken. A total of 50 samples, each composed of liver and spleen, were collected from different chickens of Gazipur, Dinajpur and Panchagarh district. Three suspected organ samples derived from liver were also inoculated in to SPF embryonated chicken eggs for viral propagation. Each location is belonging to A, B and C poultry zones of Bangladesh, respectively. Viruses were detected by real-time PCR and conventional PCR. Blood samples (n=303) were collected at beginning and after recovery from infection and tested by indirect ELISA. Sequencing of PCR products were done for phylogenetic analysis. The indirect ELISA serological technique was employed which detects antibodies to Group 1 FAdVs and does not differentiate specific serotypes. Specific serotypes were detected through real time PCR and sequencing data analysis. All the flocks exhibited clinical symptoms of anorexia, drowsiness, ruffled feathers, reduced body weight, lack of uniformity and high mortality. Enlarged friable liver with yellow to tan color mottled with focal soft area, fluid in pericardial sac, swollen and hemorrhagic kidneys, enlarged congested spleen and hemorrhagic pancreas were found on postmortem examination. FAdVs were detected in 9 flocks (90%) out of 10 flocks except commercial layer flock from Dinajpur. Three serotypes namely serotype 8b in 7flocks (70%), serotype 11 in 2 flocks (20%) and serotype 5 in 1 flock (10%) were detected. The antibody titer increases significantly (p<0.05) after recovery from the infection. Phylogenetic analysis revealed that the Bangladeshi FAdVs have close identity with viruses from Asia, Europe, South and North America. These results implied that FAdVs have been introduced to Bangladesh multiple times. In this situation vaccination against detected particular serotypes associated with IBH (Inclusion Body Hepatitis) and upholding comprehensive biosecurity measures are crucial for the prevention and control of the disease. INVESTIGATION ON FOWL ADENOVIRUS (GROUP 1) CIRCULATING IN BANGLADESH AND MOLECULAR CHARACTERIZATION OF SPECIFIC SEROTYPES ASSOCIATED WITH INCLUSION BODY HEPATITIS; A Dissertation Submitted By Mohammad Nazrul Islam, Registration No.: 1205017, Session: 2020; In partial fulfillment of the requirements for the degree of Doctor of Philosophy In Microbiology, DEPARTMENT OF MICROBIOLOGY, FACULTY OF VETERINARY AND ANIMAL SCIENCE, HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR; June, 2024.