- Thursday, November 1, 2012
- Published at:Open Journal of Animal Sciences
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ABSTRACT
An experiment was conducted to investigate the prevalence of the red mite (Dermanyssus gallinae) in layer farms in four districts of northern West Bank, Palestine. The four districts were: Nablus, Tulkarm, Tubas, and Jenin. A total of 225 layer farms were investigated for infection with the parasite during the period from September 2009 to August 2010. The highest prevalence of the red mite was observed in the district of Tulkarm (18.3%, 25.5%, 32.7% and 47.3%, for the districts of Nablus, Jenin, Tubas, and Tulkarm, respec-tively) which can be explained by the hot humid climate in the district and insufficient cleaning. Infection with the red mite was highest in sum-mer (43.8%) and lowest in winter (12%). The high infection rates observed in this study reflect the poor management and housing conditions, char- acteristic of layer farms in the study region.
Keywords: Prevalence; Red Mite; Layer Farms;
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- Thursday, November 1, 2012
- Published at:Open Journal of Animal Sciences
-
ABSTRACT
An experiment was conducted to investigate the prevalence of the red mite (Dermanyssus gallinae) in layer farms in four districts of northern West Bank, Palestine. The four districts were: Nablus, Tulkarm, Tubas, and Jenin. A total of 225 layer farms were investigated for infection with the parasite during the period from September 2009 to August 2010. The highest prevalence of the red mite was observed in the district of Tulkarm (18.3%, 25.5%, 32.7% and 47.3%, for the districts of Nablus, Jenin, Tubas, and Tulkarm, respec-tively) which can be explained by the hot humid climate in the district and insufficient cleaning. Infection with the red mite was highest in sum-mer (43.8%) and lowest in winter (12%). The high infection rates observed in this study reflect the poor management and housing conditions, char- acteristic of layer farms in the study region.
Keywords: Prevalence; Red Mite; Layer Farms;
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- Saturday, August 21, 2010
- Published at:HEBRON UNIVERSITY SCIENCE JOURNAL
- Abstract
This experiment was conducted to investigate the effects of feeding different silages on performance of fattening lambs and nutrients digestibility. Sixteen uniform males of Awassi lambs were used in feeding trial that was lasted for 77 days. The trial was followed by a digestion trial. Lambs were divided into four experimental groups during the trial and had free access to water. Three types of silage were prepared using wheat straw (WS), olive cake (OC) and citrus pulp (CP). The three by-products were mixed in the following ratios for silage 1 (60:27:13). For silage 2 (20:54:26) and for silage 3 (0:48:52), respectively. The forages were offered to lambs along with fixed amount of a commercial fattening concentrate which was 78% of total rations fed on air dry basis. Silage type had no effect on lambs weight development and lambs average daily gain. The feed conversion efficiency was the highest (P<.05) in lambs fed the silage 1. However, the cost of gain was the lowest (P<.05) in lambs
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- Thursday, August 19, 2010
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Abstract
This study was conducted to investigate the effect of different crude protein (CP) feeding strategies on the general performance, feed intake and visceral organs weights of Awassi lambs. Forty eight male Awassi lambs were used in this experiment. Lambs were divided into four experimental groups with twelve lambs in each. Lambs were fed individually and each was considered as a replicate. Lambs in groups 1, 2 and 3 were fed with 120, 160 and 180 g/kg CP diets, respectively. However, lambs in group 4 were fed with a diet of a decreasing level of protein starting from 200 g/kg for the first month then a 20 g/kg CP reduction/ month for the following three months. At the end of the feeding trial, five lambs from each replicate were killed for the visceral organs investigation. Results showed that body weight gain in lambs was the same among protein levels in the first 6 weeks of feeding. After that, lambs on the decreasing level of protein had more (P<0.05) total weight gain compar
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- Tuesday, September 29, 2009
- Published at:HEBRON UNIVERSITY J
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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 experiment, 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 add
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Jamal Mohmmed Salim Abu- Omar