Broilers

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Effects of Early Chlorotetracycline Administration and Farm Clean-Up On Growth And Mortality In Broiler Chicks

Journal Title, Volume, Page: 
Journal of the Islamic University of Gaza, vol. 11 (2):184-190.
Year of Publication: 
2003
Authors: 
Maen Samara
Department of Agriculture, Faculty of Agriculture and Veterinary Medicine, An-Najah National University, Nablus, Palestine
Current Affiliation: 
Department of Agriculture, Faculty of Agriculture and Veterinary Medicine, An-Najah National University, Nablus, Palestine
Preferred Abstract (Original): 

Three broiler trials were conducted to age of 7-days, 21-days and 42-days, for trials 2, 3, respectively and I. In trial 1, two treatments were used: 1) the control (c) in which chicks received no preventive medication in the form of chlortetracycline (tetracycline HCL); 2) preventive medication (m-7) in which one day old chicks were given a preventive course (for seven days) of chlortetracycline at 0.5 g/L drinking water. In trial 2, three treatments were used: treatments 1 (c) and 2 (m-7) where similar to those in trial 1; however, chicks in treatment 3 (m-10) were given the preventive course for 10 days. In the third trial, four treatments were used, 1) common broiler house clean-out and chicks were given no medication (c-nm); 2) common broiler house clean-out and one day-old chicks were given a preventive.

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Effects of Phytase on Broilers Performance and Body Status of Phosphorus

Journal Title, Volume, Page: 
Hebron University Research Journal. Vol.( 4), No.(1), pp.(55 – 66), 2009
Year of Publication: 
2009
Authors: 
Jamal Abo Omar
Department of Agriculture, Faculty of Agriculture and Veterinary Medicine, An-Najah National University, Nablus, Palestine
Current Affiliation: 
Department of Agriculture, Faculty of Agriculture and Veterinary Medicine, An-Najah National University, Nablus, Palestine
Rabie Sabha
Department of Agriculture, Faculty of Agriculture and Veterinary Medicine, An-Najah National University, Nablus, Palestine
Preferred Abstract (Original): 

This experiment was conducted to investigate the effect of microbial phytase supplementation on broilers performance, nutrient digestibility, carcass cuts and body status of Ca and P. A total of 200 day-old Cobb-500 chicks were used in the experiment. Birds were partitioned into five experimental groups of 40 birds each treatment was composed of 4 replicates with 10 birds in each. The control group was fed a commercial starter and finisher diet. The second treatment group was fed a phosphorus deficient diet, while the third, fourth and fifth treatments groups were fed a phosphorus deficient diets plus the microbial phytase. Phytase enzyme was incorporated at levels 1000, 2000 and 3000 PU/kg feed for the last three treatments, respectively. In the last week of experimment, four birds from each replicate were used in metabolic trial. However, at time of termination of the experiment, the same birds were killed for carcass cuts and tibia ash content investigations. Results of the experiment showed that the addition of phytase enzyme to P- deficient diets significantly improved (P<0.5) broilers performance. Howeever, feed intake, feed conversion ratio and tibia minerals were significantly increased (P0.05) in birds fed P- deficient diets supplemented with phytase. Phytase supplemmentation had no significant effect on carcass cuts and dressing percent compared to birds fed the low P diets. Also, results of this investigation showed that phytase enzyme increased (P0.05) the digestibility of dry matter, crude protein and ash. 

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Performance and Some Blood Constituents of Broilers Fed Sesame Meal Sup-Plemented with Microbial Phytase

Journal Title, Volume, Page: 
Asian Pacific Journal of Tropical Biomedicine, 1-8
Year of Publication: 
2012
Authors: 
Jamal Abo Omar
Faculty of Agriculture, Department of Animal Production, An Najah National University, P.O. Box 707, Nablus, Palestine
Current Affiliation: 
Faculty of Agriculture and Veterinary Medicine, Department of Animal Production and Health, An Najah National University, Nablus, Palestine
Hatem Shanti
Department of Animal Production, Faculty of Agriculture, Al Azhar University, P. O. Box, Gaza, Palestine
Kamal Al -Shakhrit
Department of Animal Production, Faculty of Agriculture, Al Azhar University, P. O. Box, Gaza, Palestine
Adel Abdul Ghany
Department of Animal Production, Faculty of Agriculture, Al Azhar University, P. O. Box, Gaza, Palestine
Preferred Abstract (Original): 
Objective: To investigate the effect of the interaction between dietary sesame meal (SSM) level and levels of microbial phytase supplementation on growth performance, carcass traits and some blood plasma constituents of broilers. Methods: A total of 288 one-day-old unsexed Cobb chicks were randomly allocated in 12 experimental treatments for 42 days. Each treatment had 24 broilers arranged in 3 replicates of 8 broilers each. A 4 × 3 factorial arrangement of 12 dietary treatments was used including four levels of SSM (i.e., 0, 250, 500, 1 000 g/kg) and three levels of microbial phytase (i.e., 0, 300, 600 FTU/kg). At 42 days of age, nine birds per treatment (three birds per replicate) were randomly selected and fasted for 12 h and killed. Abdominal fat, giblets, and dressing proportion were recorded. Blood samples were collected from five birds of each replicate and used for determination of total protein (TP), albumin, total cholesterol (COL), triglycerides (TG), liver aspartate amino transferase enzyme (AST) and alanine amino transferase (ALT), calcium (Ca), inorganic P, globulin and albumin to globulin ratio. Results: the experiment showed that SSM level had a significant effect on average body weights of broilers for the studied experimental periods, where negative effects were observed on body weights with increasing SSM level (i.e., 500 and 1 000 g/kg). The same was true for the interaction between SSM and phytase. SSM level, significantly, affected feed CR during the studied growth periods (P<0.01). The dressing proportion, giblets and abdomen fat were significantly (P<0.01) affected by the SSM, however, none of these variables were affected by phytase. Diets with 1 000 g/kg SSM and 600 FTU/kg showed the highest (P<0.05) giblets percentage. Phytase supplementation significantly (P<0.01) affected the plasma TP, albumen, globulin, albumin: globulin ratio, COL and ALT activity. SSM by phytase interaction significantly affected plasma content of total TP, globulin, albumin: globulin ratio, COL, TG, ALT activity and Ca. However, it had no effect on plasma albumin (P=0.07), AST activity (P=0.06) and inorganic P (P=0.19) levels. Conclusions: SSM had positive effects on broilers performance especially at low inclusion level. However, SSM and phytase had variable effects on plasma con-stituents. More research is needed to conclude the appropriate supplementation levels of SSM and phytase.
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Effect of Garlic Powder on Performance and Lipid Profile of Broilers

Journal Title, Volume, Page: 
OJAS, Vol.2, No.2, 62-68
Year of Publication: 
2012
Authors: 
J. M. Abo Omar
Department of Animal Production, An Najah National University, Nablus, Palestine
Current Affiliation: 
Faculty of Agriculture and Veterinary Medicine, Department of Animal Production and Health, An Najah National University, Nablus, Palestine
Kamal Jamal Issa
Palestine Poultry Company, Tulkarm, Palestine
Preferred Abstract (Original): 
This experiment was conducted to investigate the effect of feeding garlic powder (GP) on the performance, digestibility, digestive organs, carcass cuts and lipid profile of broilers. A total of 270 day-old Cobb-500 chicks were used in the experiment. Birds were partitioned into three experimental groups of 90 birds in each. Each treatment was composed of 6 replicates with 15 birds in each. The control group was fed with a commercial starter and finisher diet. The second and third groups were supplemented with GP at the rate of 0.2% and 0.4% respectively. In the last week of experiment, 18 birds from each experimental group (3 birds per replicate) were used in a metabolic trial. At the time of termination of the experiment, the same number of birds were killed for digestive organs and carcass components measurements. Blood samples from 3 birds per replicate were collected on 3rd, 5th and 6th week post feeding from wing vein for blood lipid profile determination. Total cholesterol (COL), triglycerides (TG), high density lipoprotein (HDL), low density lipoprotein (LDL) levels were determined. Results of this study showed that GP had no significant effects on broilers weight gain, feed intake (FI), feed conversion ratio (FCR), carcass cuts, visceral organs. However, GP decreased (P < 0.05) COL, TG, LDL and increased HDL levels compared to control birds. The dry matter (DM), crude protein (CP) and ether extract (EE) digestibility were improved by feeding GP. It can be concluded that GP could provide positive advantages in broilers performance.
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Carcass Composition and Visceral Organ Mass of Broiler Chicks Fed Different Levels of Olive Pulp

Journal Title, Volume, Page: 
Journal of The Islamic University of Gaza,(Series of Natural Studies & Engineering) Vol.13, No.2, P175-84
Year of Publication: 
2005
Authors: 
Jamal M. Abo Omar
Department of Agriculture, Faculty of Agriculture and Veterinary Medicine, An-Najah National University, Nablus, Palestine
Current Affiliation: 
Department of Agriculture, Faculty of Agriculture and Veterinary Medicine, An-Najah National University, Nablus, Palestine
Preferred Abstract (Original): 

The current investigation was conducted to study the effects of olive pulp on the carcass composition, gastrointestinal tract, and visceral organ mass of broiler chicks. A total of 250 one-day-old chicks were used in this research and were divided into five experimental groups with five replicates in each. Olive pulp was incorporated in four of the experimental groups at rates of 25, 50, 75 and 100 g/kg in both starter and finisher feeds to replace similar amounts of maize. Diets were fed for 35 days. At the end of the experiment, four birds of each group were slaughtered in similar routine followed in regular slaughterhouses. Regression analysis (linear and quadratic) showed that level of olive pulp had no significant effects on visceral organ mass, gastrointestinal tract weight, carcass cuts, carcass composition, and dressing percent. However, chicks consuming 100 g olive pulp/kg had heaviest (P<0.05) average live weights.

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