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Chemical analysis and consumer preference of selected poultry egg types in Zaria, Nigeria
Published 2013-09Subjects: “…Poultry eggs…”
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Salmonella status of eggs on the market in South-western Nigeria
Published 2012-09Subjects: “…Commercial eggs…”
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Page will reload when a filter is selected or excluded.- Egg quality 3 results 3
- Cholesterol 2 results 2
- Nigeria 2 results 2
- Performance 2 results 2
- Technical efficiency 2 results 2
- "Four diets were formulated to study the influence of varying crude protein levels on the performance, egg quality, serum and haematological characteristics at the first phase of laying cycle of sixty Bovan Nera laying birds that were randomly allotted to dietary treatments. The four experimental diets had five replicates each and three birds per replicate. Diet 1 contained 14% crude protein (CP), while diet 2 contained 15% CP, diets 3 and 4 contained 16% and 17% CP respectively. The experimental birds were fed for 10 weeks and the data collected were statistically analysed. Apparent variations recorded for all the performance characteristics such as Egg number, Hen-day production, Feed Conversion Ratio (FCR) and weight gain were significantly different (p < 0.05). The best FCR value were recorded by birds fed 17% CP (3.45), while the highest weight gain mean value were also recorded by birds fed 17% CP value. Findings indicated a direct relationship between dietary crude protein values and performance. " 1 results 1
- A study was carried out on the assessment of lead and cadmium in the eggs of Gallus gallus in Agbowo and Oluyole area of Ibadan. The aims and objectives of the study were to assess the level of lead (Pb) and cadmium (Cd), study the relationship between lead and cadmium, study the trend of lead and cadmium levels and estimate the health risk in consuming the eggs. Egg samples were collected randomly and fortnightly between July to September 2013 as rainy season and January to February 2014 as representing dry season. Eggs were acid-digested after weighing out 0.5g using weighing balance. Digested egg parts were then transferred to the Buck Scientific's 210VGP Atomic Absorption Spectrophotometer (AAS) for heavy metal analyses of lead and cadmium. Results show that the mean metal concentration in the eggs were in the order for Pb as: Egg yolk<egg white<egg shell, while Cd was egg yolk<egg shell<egg white in the month of July 2013 in Oluyole, while in Agbowo for the same month was Cd: Egg yolk<egg white<egg shell, while Pb was egg white<egg yolk<egg shell. Similar trends were observable with slight variations for other months and locations, but with the egg shell usually having a higher mean concentration for both metals. The mean seasonal pattern of variation in the heavy metals in the egg parts showed that lead was higher for both seasons than cadmium throughout the study. The rainy season values for cadmium and lead were lower than that of the dry season in both Agbowo and Oluyole areas of Ibadan. In Oluyole, Cd was higher during the rainy season (0.1156ppm) than during the dry season (0.1022ppm) with a similar pattern repeating itself for Pb in the egg shell from Oluyole area. The target hazard quotient (THQ) used for assessing health risk exceeded 1 for both lead and cadmium in the eggs thereby indicating a potential health risk associated with the metals. There was correlation between the occurrence of lead and cadmium in the eggs for all the months and locations thereby indicating a relationship between the two metals. The study shows that eggs supplied in parts of Ibadan are impacted by heavy metals such as lead and cadmium with potential health consequences that needs to further investigated 1 results 1
- A study was carried out to examine the effects of various antibiotics, salt concentrations and pH on the hatchability of F. gigantica eggs. It was observed that tetracycline concentration of 0.5mg/ml and above inhibited the development and hatching of F. gigantica eggs. Salt concentration of 1% gave low hatchability while 2% concentration and above strictly inhibited the hatching of the eggs. Acidic pH of 3-5 inhibited hatching of F. gigantica eggs while pH of 7-8 promoted hatching of eggs to above 3.4%. The possibility of employing the results of this study to fashion out a control measure against fasciolosis in farm animals is discussed. 1 results 1
- A total of 120 local hens at the point of lay were randomly assigned, 2 per cage, with 10 replicates per diet in a completely randomized design, to 6 palm kernel cake (PKC)-based layer diets that contained 20% CP and 2,700 kcal of ME/kg of feed. The PKC was included at levels of 10, 20, 30, 40, and 50% in diets 2, 3, 4, 5, and 6, respectively. Diet 1 without PKC served as the control. To make the diets isocaloric, 0.5, 1.48, 3.35, 5.22, 7.11, and 8.98% palm oil was added to diets 1, 2, 3, 4, 5, and 6, respectively. Feed and water were offered ad libitum for 12 wk. The hen-day production (53.8 to 63.3%) peaked at dietary PKC levels of 20 to 40%. Feed conversion ratio was also the lowest in hens fed the 20 to 40% PKC-based diets, but it was poorer than the control diet for those fed 50% PKC. The least hen-day production was obtained for birds on the 50% PKC-based diet. The albumen height (3.16 to 3.73 mm) was highest for eggs laid by hens fed the control and 10% PKC diets. The egg yolk indexes obtained for hens fed 0 to 10% dietary PKC (0.2) were significantly higher than those obtained for hens fed 20 to 50% PKC (0.13 to 0.15). The yolk color score increased significantly (P < 0.05) across the diets (from 1.0 to 5.9) as the level of palm oil increased. The egg weight, egg circumference, eggshell thickness, egg shape index, and weights of the albumen and yolk were similar across diets. Feeding up to 40% PKC with added palm oil had no adverse effect on the performance of Nigerian local hens and the quality of their eggs. 1 results 1
- Acceptability 1 results 1
- Alternative poultry feed 1 results 1
- Antibiotic 1 results 1
- Antibiotics 1 results 1
- Antimicrobial agent 1 results 1
- Artificial insemination 1 results 1
- Availability of dietary energy is a major problem in poultry in Nigeria. Maize, a conventional energy ingredient is expensive. Cassava, which could be a cheaper alternative energy source, has not been tried in Nigeria. The performance of pullets and layers fed various Cassava Root Products (CRP) was examined in this study. The study was divided into two phases. In the first phase, 408 pullet chicks, 240 growing pullets and 240 layers were each allotted to eight diets. In diets 1, 2, 3, and 4, maize was replaced with 0%, 25%, 50% and 100% of Unpeeled Cassava Chips (UCC). Diet 5 contained 25% Peeled Cassava Chips (PCC), while diets 6, 7, and 8 had 25%, 50% and 100% replacement with Unpeeled Cassava Pellets (UCP). In phase two, UCC, UCP were compared with Unpeeled Cassava Grits (UCG) which replaced maize at 50% and 100% in the diets of 210 chicks, 210 growers and 315 layers. The Control Diet (CD) contained 100% maize. All experiments were in a completely randomized design with three replicates of 17, 10, 10, 10, 10 and 15 birds per replicate, respectively. Parameters measured for all the birds included Feed Intake (FI), Weight Gain (WG), Feed Conversion Ratio (FCR) and mortality. Age at First Egg (AFE) and Hen Day Production (HDP) were also recorded for growers and layers, respectively. Feacal and blood samples were collected for nutrient digestibility and serum thiocyanate determination. Data obtained were analysed using descriptive statistics and ANOVA (P=0.05). Birds fed 25% CRP were not significantly different from those on CD for all the parameters. The WG of chicks fed 50% and 100% UCC and 100% UCP were significantly lower than those fed CD. Average FCR of 50% CRP was similar to those on CD. There were no significant difference between growers fed CRP and CD for WG (8.4 g/day - 10.0 g/day), FCR (8.0 - 9.4) and mortality (0.0-3.6%). Average FI, HDP and WG of layers fed 100% UCP were significantly lower than those on CD. Average FI, WG, and FCR of chicks fed 100% UCG (31.2 g/day, 10.7 g/day and 2.9 respectively) were similar to those on CD (30.9 g/day, 10.7 g/day and 2.9, respectively). Performances of growers fed UCG were not significantly different from that of CD, while AFE of growers fed 100% UCC (153 days), and 100% UCP (154 days) were higher than those on CD (146 days). Average HDP of layers fed 100% chips (57.8%), pellets (58.6%) and grits (58.3%) were significantly lower than those on CD (63.1%). Feed intake and WG for layers on 100% UCG were similar to those recorded for the CD. Nutrient digestibilities of growers were similar. Nitrogen retention of chicks and layers fed 100% CRP were lower than those on CD. Serum thiocyanate values of layers fed 50% CRP were higher than CD and lower than 100% UCC, UCP and UCG. Complete replacement of dietary maize with cassava chips, pellets and grits resulted in optimum performance for growers while 50% replacement achieved same for chicks and layers. 1 results 1
- Baby food 1 results 1
- Battery cage 1 results 1
- Cassava root products 1 results 1
- Cassava root sieviate, performance, egg quality parameters, gut morphology 1 results 1
- Chemical composition 1 results 1
- Chicken eggs are extremely fragile and require protective packaging for handling, storage and delivery. Paper egg tray, the most globally acceptable package for eggs, is often im- ported, costly and scarce in Nigeria due to difficulties in procurement and management of standard machines for trays’ local production. Therefore, this study was intended to lo- cally develop and evaluate the performance of a low-cost paper egg tray-making machine to ease the local production and distribution of paper egg trays in Nigeria. Using metal scraps as construction materials and a sand-casting method for mould manufacture, a 30- cell paper egg tray-making machine was developed, and its performance was evaluated. Power rating determination of the machine was done using Logger Interface Program. The paper egg trays having dimensions of 300 ×300mm; cell diameter of 35mm; cell depth of 25mm; and wet and dry weights of 298.0 g and 86.0 g, respectively, were produced. The vibration resistance of the manufactured trays was compared with existing oness at a frequency of 5 Hz. The machine of 1.4 Kw power rating and sand-cast aluminum-alloy moulds was developed at a total cost of N76, 720 ($210). The machine could be oper- ated manually with a minimum of one employee, using reciprocating mould movement at a capacity of ten trays per hour. An acceptable paper egg tray was obtained with Chip- board (65.0%) and Newsprint (35.0%) wastepaper mix, fabric-mesh hole-size of ≤0.6 mm and pulp slurry of 4.0% consistency. The vibration resistance result showed that the egg failure by the manufactured and existing paper egg trays was moderate and comparable. The machine development could encourage waste management, youth employment, and affordable local paper egg tray manufacture and supply in Nigeria. 1 results 1
- Commercial eggs 1 results 1
- Consumer preference 1 results 1
- Consumption 1 results 1
- Cottonseed cake 1 results 1
- Deep litter 1 results 1
- Egg 1 results 1
- Egg marketing 1 results 1
- Egg powder 1 results 1
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