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Search Results: 1 - 10 of 87702 matches for " I.I. Dafwang "
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Effect of Maxigrain Supplementation of Diets with or Without Rice Offal on the Performance of Broiler Chicks
S. Duru,I.I. Dafwang
International Journal of Poultry Science , 2010,
Abstract: Three experiments were conducted concurrently to determine the effect of maxigrain supplementation of isocaloric diets with or without rice offal, the effect of maxigrain supplementation of diets containing rice offal at two levels of energy and the effect of maxigrain supplementation of diets in which the maize content was substituted with rice offal on a weight to weight basis. The experiments were conducted with 210 broilers from 2-5 weeks of age. Results showed that maxigrain supplementation did not have any effect on broiler performance when broilers were fed isocaloric and isonitrogenous diets with or without rice offal. Maxigrain supplementation improved the performance of broilers when added to low energy diets. The improvement in broiler performance was same at 0.1 and 0.2% maxigrain supplementation. The study confirmed earlier recommendations that rice offal can be fed at levels of up to 15% in broiler chick diets without adverse effect on growth performance and concluded that maxigrain enzyme supplementation may be beneficial only when added to diets containing lower than recommended energy and protein levels.
Evaluation of Methiorep as a Substitute for Methionine in Broiler Diets
Itoe Salome,I.I. Dafwang,G.S. Bawa
International Journal of Poultry Science , 2010,
Abstract: A total of 225 day old broiler chicks were used to evaluate the use of Methiorep, a herbal Methionine product, as a substitute for synthetic Methionine in broiler diets. The experiment lasted from 0-4 weeks of age. The birds were randomly allocated to 5 dietary treatments in 3 replicates of 15 birds each, giving a total of 45 birds per treatment. The 5 dietary treatments comprised diet 1 which was devoid of supplementary Methionine and Methiorep, diet 2 had 0.25% Methionine, while diets 3-5 had graded levels of 0.25, 0.5 and 1% Methiorep respectively. All diets were isocaloric and isonitrogenous. The results showed that birds fed the Methionine supplemented diet performed significantly (p<0.05) better than other treatments in body weights, weight gains, feed intake, feed to gain and feed cost per kg gain. Dietary treatments had no significant effect on mortality rate. An analysis of the effect of graded levels of Methiorep on growth performance showed that Methiorep significantly improved growth performance up to 1% inclusion level but growth performance even at that level was inferior to that obtained on the 0.25% Methionine supplemented diet. It is concluded from this experiment that Methiorep is not an effective substitute for Methionine under the conditions of this study.
Growth and Subsequent Egg Production Performance of Shika-Brown Pullets Fed Graded Levels of Cooked Lablab purpureus Beans
I.A. Adeyinka,O.O. Oni,A. Abeke,I.I. Dafwang
Pakistan Journal of Biological Sciences , 2007,
Abstract: : The lablab seeds were cooked for 30 min, sundried for three days and thereafter milled and incorporated into chickens’ diets. Six treatments, comprising of six dietary levels of lablab at 0.0, 7.5, 15.0, 22.5, 30.0 and 37.5%, respectively was fed during the grower’ s phase. Results obtained for the growers phase indicate that final weight (g/bird), weight gain (g/bird) and feed cost (N kg- 1) decreased significantly (p<0.05) as the level of lablab increased in the diet. Feed intake (g/bird and g/bird/day) as well as feed cost (N/bird) and total cost (N/bird) also decreased significantly (p<0.05) as the level of lablab increased in the diet up to 22.5% inclusion level before increasing as the level of lablab in the diets continued to increase. The level of lablab in the diet had no effect on mortality throughout the experimental period. In addition haematological parameters such as Packed Cell Volume (PCV), Haemoglobin (Hb) and Total Protein (TP) were not significantly (p<0.05) affected by feeding diets containing graded levels of cooked lablab beans to pullets. Results obtained during the laying phase indicates that feeding lablab seed meal up to 22.5% in the diets at the growers stage had no significant adverse effect (p<0.05) on final weight, feed intake, feed efficiency, percent henday and henhoused egg production, percent production at peak, kilogramme feed per twelve eggs, feed cost per twelve eggs, Haugh Unit and yolk index. However, age of birds at first egg, age at 50% production and age at peak egg production were increased significantly (p>0.05) with increase in the level of lablab seed meal in the growers diets.
Replacement Value of Dusa (Locally Processed Maize Offal) for Maize in the Diets of Pullets and Subsequent Early Laying Characteristics
P.A. Vantsawa,S.O. Ogundipe,I.I. Dafwang,J.J. Omage
Pakistan Journal of Nutrition , 2008,
Abstract: An experiment was conducted to study the replacement value of dusa (locally processed maize offal) for maize in the diets of pullets (9-20 weeks) and their subsequent early laying performance. Three hundred and seventy eight (378) eight weeks old egg type pullets of approximately equal weights were randomly allocated to seven dietary treatments with three replicates of 18 birds each. The seven dietary treatments composed of rations in which graded levels of dusa replaced maize up to 100% in diet seven. At the end of the experiment average feed consumption was significantly (p<0.05) lower for the control and it increased as the level of dusa increased in the diets. The final body weight of pullets was better for treatment four which contained equal proportion of maize and dusa in the diets. The cost (N*kg gain) was significantly (p<0.05) higher for the control diet and it decreased as the level of dusa increased in the diets. The subsequent performance of birds revealed that the weight of birds at first egg, 10% and at 50% egg production were better for treatment four. The weight of first egg and ages at first egg were better for the diets with higher level of maize. There were no significant differences (p>0.05) in ages at 10%, 50%, peak egg production, weight of eggs at peak production and cost (N*dozen egg) for all the treatments. There was a 39.03% savings in cost of production by using dusa in pullets diets.
Replacement Value of Normal Maize with Quality Protein Maize (Obatampa) in Broiler Diets
P.A. Onimisi,J.J. Omage,I.I. Dafwang,G.S. Bawa
Pakistan Journal of Nutrition , 2009,
Abstract: Three hundred and sixty days old Ross Broiler Chicks were used in a completely randomized design feeding trial to evaluate the benefits of replacing Normal Maize (NM) with Quality Protein Maize (QPM) (Obatampa variety) in Broiler diets. There were 6 treatments of 3 replicates each and each replicate had 20 chicks. Six diets were formulated in which the NM in diet was replaced by QPM at 0, 25, 50, 75 and 100% representing T1, T2, T3, T4 AND T5, respectively while T6 was normal maize base diet balanced for lysine. The appropriate diets were fed to the birds for 4 weeks in the starter phase and 4 weeks in the finisher phase. At the starter phase, there was gradual numerical increase in weight gain as QPM increased in the diet. T5 was significantly better than T1-T4 but T6 was the overall best performance. Feed consumption was similar for T1-T5 but significantly higher for T6. Feed/gain ratio improved as QPM increased in the diet (p<0.05). Dressing % and weights of organs expressed as % of live weight and body parts expressed as % of dressed weight were not different statistically (p>0.05).
Seroprevalence, Seasonal Occurrence and Clinical Manifestation of Newcastle Disease in Rural Household Chickens in Plateau State, Nigeria
U. Musa,P.A. Abdu,I.I. Dafwang,J.U. Umoh
International Journal of Poultry Science , 2009,
Abstract: A study on seroprevalence, seasonal occurrence and clinical manifestation of Newcastle Disease Virus (ND) among rural household chickens and Live Birds Markets (LBM) was conducted using haemagglutination Inhibition Test (HI) and questionnaires. A total of 1, 208 chickens reared under extensive management system in four Local Government Areas (LGAs) of Plateau State were used for the study. The seroprevalence of ND virus antibodies in rural chickens showed that there was no statistically significant (p > 0.05) difference among the four LGAs and of the 1,208 sera tested, 51.9% had detectable antibodies to NDV but only 14.1% of the chickens had HI antibody titre of > 4log2 which was considered as protective. About 86.2% of the chickens sampled were at risk of suffering from clinical ND. Newcastle disease outbreaks occurred year round in the villages sampled with the highest incidence of 86.6% observed from November to March (Dry season) and September to October, 8.31% (Pre-dry season). During outbreaks of ND, infected birds exhibit the following major clinical signs; nervous signs (32.4%), weakness (16.6%), whitish/greenish diarrhea (16.2%), coughing/sneezing 13.6%, anorexia 9.39% and others 11.8%. It was concluded that the prevalence of ND in the four LGAs of Plateau State is high. At the time of the study over 80% of rural chickens in Plateau State were at risk of dying from ND when exposed to a virulent NDV. It is therefore recommended that vaccination and improved management practices as a means of prevention against ND before the period of outbreaks should be instituted.
Apparent Digestibility of Feed Nutrients, Total Tract and Ileal Amino Acids of Broiler Chicken Fed Quality Protein Maize (Obatampa) and Normal Maize
P.A. Onimisi,I.I. Dafwang,J.J. Omage,J.E. Onyibe
International Journal of Poultry Science , 2008,
Abstract: Two hundred and forty Ross Broiler chicken were used in a completely randomized design to evaluate the apparent digestibility of Obatampa, a quality protein maize (QPM) and normal maize (NM) nutrients with respect to crude protein, crude fibre, ether extract, ash and nitrogen free extract, as well as total tract and Ileal amino acids. There were 4 dietary treatments, each having 3 replicates with 20 birds per replicate. Two pure diets each of NM and QPM were formulated, one each without synthetic lysine supplementation (T2 and T3 for NM and QPM respectively) and one each with synthetic lysine supplementation (T2 and T4 for NM and QPM respectively). The diets were fed to the birds for two weeks before feacal collections and dissecting for Ileal sampling. Apparent Digestibility of nutrients, fecal and Ileal amino acids were higher for normal maize diets without lysine supplementation. Supplementation of diets with synthetic lysine increased nutrient and amino acids digestibility for QPM.
Rural Poultry Populations and Strains in Two Agro-Ecological Zones of Nigeria
I.I. Dafwang,U. Musa,P.A. Abdu,J.U. Umoh
International Journal of Poultry Science , 2010,
Abstract: A study was conducted in Plateau State of Nigeria which has two distinct agro-ecological zones; a humid sub-temperate region in the North and a sub-humid hotter region that is part of the Northern Guinea Savanna ecological zone of Nigeria in the South. A sample of 1240 farmers from two Local Governments in each of the two ecological zones were surveyed to assess the poultry population and strains of birds as a prelude to the introduction of interventions for control of Newcastle Disease and other programs for improving rural poultry productivity. Results showed that the farmers owned an average of 20 chickens, 6 ducks, 0.3 turkeys, 1 pigeon and 1.2 guinea fowls per household. Each household reared two or more strains of chicken and most had different types of poultry in the same backyard. There were more Naked neck and long legged chickens in the hotter ecological zone but more Barred plumage strains in the cooler ecological zone.
Detection of variants of microcystin produced by Microcystis aeruginosa in some burrow pits of Kano, Nigeria
I.I Indabawa
Bayero Journal of Pure and Applied Sciences , 2009,
Abstract: Water samples of some burrow pits in Kano metropolis were examined for Microcystis aeruginosa and their ability to produce toxins. Identification for the organisms was achieved by the use of standard procedure and its pure culture was obtained by capillary pipette technique. The pure culture was harvested and dried at 25oC. These were kept in refrigerator before being subjected for the analysis of toxins High liquid performance chromatography was used to detect the presence of toxins. HPLC extracts on analysis, were found to contain four variants of microcystins- RR (24%), YR (26%), LR (48%), and LF (2%). Analysis of variance (ANOVA) of the result showed that the microcystin variants in all the six samples did not vary at 5%level or p<0.05 during the study period. The results of the finding show the possibility of poisoning effect on a variety of livestock, fishes, domestic animals and human beings that uses the burrow pit water for drinking.
Maglev suspension in soundproofing cabins for confidential talks
I.I. Bogolepov
Magazine of Civil Engineering , 2010,
Abstract: This article discusses the idea of providing sound insulation of the room by using a magnetic suspension. It is based on the invention of the Abrakitov V. E.: sound bridge problem is solved by the avoidance of mechanical contact between the panel and the main structure by a magnetic suspension of sound-insulating vacuum panel. The problem is considered on the example of the cabin for private talks.The implementation of sound insulation from airborne sound is technically uncomplicated task, but there are some problems with the structural component of the sound - the sound energy transfer from box floor to office floor and further through the building structures, sometimes at great distance. Modern methods of eavesdropping can use successfully this way. This paper suggests using a magnetic suspension in soundproof rectangular cabins for confidential talks, which excludes leakage of speech information by more effective isolation of the structural sound. If it is necessary to stop the voice information leakage fundamentally by both air sound and structural sound ways, the authors propose to make a cabin from two steel spherical shells, exhausting all air between the walls and supporting the inner shell by the magnetic suspension in suspended condition. In addition, a spherical cabin is the only effective way of isolation from infrasound.The proposed soundproof rectangular and spherical cabins for confidential talks should be designed, manufactured and tested by experts in the field of acoustic, magnetic suspension, autonomous air regeneration and providing a vacuum. Only in this case the necessary acoustic, technological and operational characteristics of a new hi-tech product will be provided.
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