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Morphometric Traits of Muscovy Ducks from Two Agro Ecological Zones of Nigeria
Yakubu, A.,Kaankuka, FG.,Ugbo, SB.
Tropicultura , 2011,
Abstract: Morphological variation between Muscovy ducks from the guinea savannah and rainforest zones of Nigeria was examined using multivariate discriminant analysis. Data comprised eight morphometric traits measured in a total of 435 adult ducks randomly selected in the two agro-ecological zones. Common descriptive statistics showed that ducks from the rainforest zone had higher (P< 0.05) body weight, foot length and thigh circumference, while their guinea savannah counterparts were longer (P< 0.05) in the neck. Stepwise discriminant analysis indicated that foot length, neck length, thigh circumference and body length were more effective in discriminating between the duck populations. The low Mahalanobis distance of 3.39, as revealed by the canonical discriminant analysis, is an indication of high gene flow between ducks from the two agro-ecological zones. The cluster analysis also revealed the homogeneity of the genetic identity of the duck populations. The present information will be the basis for further characterization, conservation and sustainable genetic improvement strategies for indigenous ducks.
Comparative Study on Some Productive Traits of Muscovy and Sudani Ducks in Egypt  [PDF]
Laila D. Abd El-Samee,Hewida M.H. El-Allawy,Nagwa A. Maghraby
International Journal of Poultry Science , 2012,
Abstract: To evaluate the productive performance of Sudani ducks (local breed) in comparison with Muscovy ducks (imported breed) this experiment was conducted during summer season in Egypt. A total number of 24 Sudani (Cairina moschata) and 24 Muscovy (Cairina moschata) ducklings (3 weeks old) were used in this study, to evaluate some productive traits including growth performance and carcass characteristics. The results revealed that body weight gain of Muscovy breed was significantly higher by 27.22% than Sudani breed at 3-12 weeks of age. Meanwhile, Muscovy ducklings consumed more feed at 3-12 weeks of age than Sudani breed. Feed conversion was better in Muscovy (4.37) than Sudani (5.25) ducks. The results also indicated that percentage of inedible parts and dressing and deboning percentage were approximately similar in both breeds. Percentage of giblets in Sudani ducks was significantly higher than in Muscovy, while percentage of carcass fat, breast and drumsticks were significantly higher in Muscovy compared to Sudani ducks. Moisture percentage was higher (p<0.05) while ether extract and ash percentages were lower (p<0.05) in breast and leg meat of Muscovy ducks as compared to Sudani ducks. Protein percentage in breast and leg meat was similar in the two breeds. It is concluded that Muscovy ducks had better productive performance than Sudani ducks. Moreover, Muscovy ducks had higher percentages of carcass fat, breast and drumsticks than Sudani ducks. Meat of Sudani ducks is characterized by its lower percentage of moisture with higher percentages of ether extract and ash than meat of Muscovy ducks.
Use of Factor Analysis Scores in Multiple Regression Model for Estimation of Body Weight from Some Body Measurement in Muscovy Duck  [PDF]
D.M. Ogah,A.A. Alaga,M.O. Momoh
International Journal of Poultry Science , 2009,
Abstract: Factor and multiple regression analysis were carried out on morphological traits (body length, body width, bill length, bill width, bill height, shank length, body height, head length, head width, neck length, wing length, chest circumference and body weight) of male and female muscovy ducks. Obvious sexual dimorphism was exhibited between sexes, relationship between body measurement and body weight were examined through factor and multiple linear regression analysis. Three factors had positive significant effect on body weight of the male muscovy representing size and shape while only one factor had positive relationship with body weight in female, accounting for 84.2% and 63.5% of variation in body weight for male and female respectively. The result reveals that body measurements can be better selected for improvement in weight for male muscovy than for females.
The Comparative Study of the Blood Cellular Composition in Muscovy Ducks in Nigeria  [PDF]
M.H. Sulaiman,D.M. Aduta,S.O. Salami
International Journal of Poultry Science , 2010,
Abstract: Twelve blood samples were obtained from four male and eight female adult Muscovy ducks which were raised semi-intensively. The total and differential blood counts as well as study of the blood cellular characteristics were carried out in this study. We report herein that the male Muscovy ducks had a higher average erythrocyte count (2.5 x 106/mm3) than the female Muscovy ducks (2.20 x 106/mm3). The Muscovy ducks average erythrocyte counts were lower than the average counts reported for temperate breed of ducks but higher than those reported for Nigerian domestic chicken. No significant differences in the average total leucocyte count between the male and female Muscovy ducks was observed. The average total leucocytes count for the Muscovy ducks were higher than those reported for the temperate breeds of ducks and the Nigerian domestic chicken. Higher average lymphocyte count was recorded for the male Muscovy ducks (72.75%) than the female Muscovy ducts (61.37%) while a lower basophil average counts was recorded for the male Muscovy ducks (0.75%) than the female Muscovy ducks (1.5%). The esinophils had a diverse number of lobulation on their nucleus and spherical intracytoplasmic granules while the heterophils had an irregular cellular outline and a spindle shaped intracytoplasmic granules. Taken together, to the best of our knowledge, this is the first comparative study of the blood cellular composition in Muscovy ducks in Nigeria.
Sandor Szász,Ferenc Bogenfürst,Lívia Kós
Poljoprivreda (Osijek) , 2000,
Abstract: In this study, which was part of a complex duck experiment, domestic (Pekin type), muscovy and mule ducks were used to determine the slaughtering waste from 7 to 12 weeks of age. The animals were kept under intensive conditions until 6 weeks of age and under semi-intensive conditions thereafter. Their were fed ad libitum, with a commercial pelleted feed for Pekin duck during the whole experimental period. Eight birds of each genotype and sex were slaughtered weekly during the period. During the slaughter procedure the different slaughtering waste were calculated.
Performance of Muscovy Ducks under Three Management Systems in South Eastern Nigeria  [PDF]
I.F. Etuk,G.S. Ojewola,S.F. Abasiekong
International Journal of Poultry Science , 2006,
Abstract: A study was conducted to evaluate the performance of Nigerian native muscovy ducks in terms of growth and feed utilization in a Randomized Complete Block Design (RCBD) under semi intensive system (SI), Intensive system with wallow (IW), and intensive system without wallow (IO). Eighteen males and equal number of female ducklings were allotted to two replicates each of the three treatments and fed from week 5 to week 20 with diet containing 17% CP and 2848.9 kcal/kg energy. Weekly weights were measured and compared using two-way analysis of variance. Final body weights were SI (males: 2507.07g, females: 1733.83g), IW (males: 2466.67g, females: 1641.17g) and IO (males: 2464.84g, females: 1657.67g). Average daily gains of drakes were 16.07g (SI), 16.39g (IW) 15.87g (IO); while those of females were 10.18g, 11.03g and 9.91g respectively. Average daily gain of drakes was significantly higher (P< 0.05) than that of females (16.11g versus 10.17g). Average feed intake were 128.54g, 130.68g and 131.14g daily in the respective groups while feed conversion ratios were 11.56, 11.44, and 12.16 respectively too. Management systems adopted in this trial did not have significant effect (P>0.05) on performance of muscovy ducks in the region.
Analysis of Morphological Traits of Geographically Separated Population of Indigenous Muscovy Duck (Cairina Moschata)  [PDF]
D.M. Ogah
International Journal of Poultry Science , 2009,
Abstract: Inter and intra specific variation among muscovy duck ecotypes from three agroecological zones of Nigeria were studied The work evaluate the morphological variation of three ecotypes ( rainforest ecotypes, humid or guinea savanna and dry savanna ecotypes) covering southern or coastal region, central and northern part of Nigeria. Twelve morphological traits including weight were considered. Significant (p<0.05) variation exist within and between ecotypes using population coefficient of variation (ANOVA) bill height had the highest coefficient of variation 79.52 while body length recorded the least variation. There are marked differences in body morphology between sexes in all the ecotypes indicating significant sexual dimorphism. Correlation between the traits were low to high. The inter specific variations in bill structure and body morphology are indication of adaptation to the environment and influence of ecological condition
Carcass and Organ Characteristics of Muscovy Ducks Reared under Three Management Systems in South Eastern Nigeria  [PDF]
I.F. Etuk,S.F. Abasiekong,G.S. Ojewola,S.C. Akomas
International Journal of Poultry Science , 2006,
Abstract: An experiment was conducted to evaluate carcass parameters of muscovy ducks reared under semi intensive system (SI), intensive system with wallow (IW) and intensive system without wallow (IO) in a randomized complete block design (RCBD). Thirty six ducks (18 males and 18 females) were slaughtered from the three treatments comprising 3 males and three females from each of two replicates of a treatment selected randomly at the age of 20 weeks. Carcass yield, thigh muscle weight and breast muscle weight of ducks under intensive systems were significantly higher (P< 0.05) than those of ducks in semi intensive management system. The dressing percentage of male (Drakes) were also numerically higher (72.01 - 74.90) than that of the females (Ducks; 69.09 - 70.98). Ducks and or Drakes raised under the intensive management system (IW, and IO) had a significantly superior dressing percentage (74.94- IW; 72.48- IO) compared with those reared under semi-intensive management system. Weights of thigh muscles and breast muscles of Ducks and or Drakes followed similar trend. Liver weight ranged between 63g- 65.25g (males) and 51g-53g (females), gizzard weights were in the range of 79g-80.50g (males) and 56g-57g (females), while heart weights ranged between 24g-27.50g (males) and 17g-19g (females). No significant differences (P>0.05) were observed in these parameters that can be attributed to management systems. In conclusion, rearing Muscovy ducks under intensive system of management produced better carcass yield.
Estimation of the genetic parameters of sexual dimorphism of body weight in 'label' chickens and Muscovy ducks
Sandrine Mignon-Grasteau, Catherine Beaumont, Jean-Paul Poivey, Hubert de Rochambeau
Genetics Selection Evolution , 1998, DOI: 10.1186/1297-9686-30-5-481
Journal of Central European Agriculture , 2006,
Abstract: The biochemical indexes “glycogen in liver” and “ketones in blood” of 0-108 hours feed deprived (according to methods for balanced experiments) 22-24 weeks old Muscovy ducklings with and without energy additives were determined. There were 3 groups of ducks- 1-st without energy supplement, 2-nd- fed with 50 g. glucose per os (as 25% solution) – twice in 24 hours, 3-rd with the same amount of glucose solution, but 3 times/24 hours. The levels of liver glycogen in all the food-deprived ducks were signifi cantly lower (3930- 9910 mg/kg) compared to the levels of the same index in fed birds (10540 mg/kg tissue). In the birds receiving energy additive they were higher compared to those deprived of the additive throughout the experimental period. The content of ketones in blood increased in the ducks starving (from 0.0095 to 0.018 mmol/l) and deprived of energy additive as early as the 24th hour, after which they decreased signifi cantly. The energy additive (30g glucose/24 hours) helped the maintenance of the energy metabolism during continuous food depriving of the experimental ducks. Three-time daily allowance of the additive adapted better the bird organism to starvation.
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