Egg Shell Meal Research Articles

Eco-Friendly Eggshell Meal on Milk Yield and Quality of Holstein Friesian Cows

Eco-Friendly Eggshell Meal on Milk Yield and Quality of Holstein Friesian Cows

Efecto de la adición de harina de cáscara de naranja y cascarón de huevo a dietas de codornices japonesas

Japanese quail is a species with great productive potential, requiring a diet balanced in energy and nutrient to meet the nutritional requirements. Conventional diets use mostly grains as energy sources, oilseed meals as the main source of amino acids, and limestone as source of calcium. The objective of the present study was to evaluate the nutritive value of dried citrus peel meal (HCN), and eggshell meal (HCH), to be used as unconventional sources of energy and calcium for balanced diets for laying quails. Combined Inclusion of 0, 5 and 10% dried citrus pulp and 0, 1, and 2 % of eggshell meal did not affect daily intake nor feed conversion rate of laying quails, though it has positive effects on pigmentation of yolk.

Studies on Egg Shell Meal as Mineral Source for West African Dwarf Goats

Studies on Egg Shell Meal as Mineral Source for West African Dwarf Goats

Effects of egg shell meal on the performance and haematology of layers and their egg quality

In an attempt to achieve Sustainable Development Goals numbers one and two, eggshell meal was incorporated into layers diets to replace bone meal. Seventy-two point of lay birds were utilized in a nine-week experiment. Four experimental diets were formulated consisting of graded levels of bone meal (BM) and egg shell meal (ESM) which were coded as; T1 (3%BM: 0%ESM), T2 (2%BM: 1%ESM), T3 (1%BM: 2%ESM), and T4 (0%BM: 3% ESM). Three replicates with six birds per replicate in a completely randomized design were used. Total egg weight, average egg weight, egg mass and feed conversion were significantly affected (P < 0.05) by the inclusion of ESM and BM. Birds on T4 recorded the significantly highest values for these parameters. Yolk width, albumen weight, egg weight and eggshell weight significantly (P < 0.05) increased with an increase in ESM, with eggs obtained from T4 having the highest values. From this study, complete replacement of bone meal with eggshell meal in the diet of layers, i.e. T4, gave the overall best results. It is recommended that farmers replace bone meal with egg shell meal as a major source of dietary calcium and phosphorus for laying birds.

Effect of Diets Containing Graded Levels of Eggshell Meal on Bone Parameters, Organ Weights and By-products of Growing West African Dwarf Goats

A 12 week trial was conducted to investigate the effect of incorporating eggshell meal (ESM) at graded levels into the diets of West African Dwarf (WAD) bucks as a calcium source. Bone strength as well as other bone measurements, organ and by-products weights were evaluated. Twenty (20) WAD bucks weighing 5.7kg on the average were caged individually inside a conventional open-sided house. The bucks were randomly divided into four (4) groups, each group consisting of five (5) animals. The animals in groups 1, 2, 3 and 4 were provided with diets containing 0.0%, 0.5%, 1.0% and 1.5% ESM respectively with group 1 serving as the control. The animals were given known quantity of supplementary feed, forage ( Andropogon gayanus corn) and water between 8 and 9am every morning. Two animals were randomly selected from each group and slaughtered for carcass analysis after which a pair of their femur bones was removed for bone measurements and strength test using the Universal testing machine. Results showed that increase in the level of ESM inclusion across treatments yielded significant variability (P 0.05) across treatments. The horns weight varied significantly (P 0.05) across the treatments. It was therefore concluded that growing WAD bucks can tolerate the inclusion of 1.5% properly sterilized ESM in their diet as source of Ca with no detrimental effect on bone parameters, organ and By-products weights.

Haematological profile of West African Dwarf Goats Fed Diets Containing Graded Levels of Eggshell Meal

A 12-week trial was conducted to investigate the effect of incorporating Eggshell meal(ESM) at graded levels into West African Dwarf(WAD) bucks diet. Haematological parameters were evaluated. Twenty (20) growing WAD bucks weighing 5.7kg on the average were caged individually inside a conventional open-sided house. The bucks were randomly divided into four (4) groups, each group consisting of five (5) animals. The animals in groups 1, 2, 3 and 4 were provided with diets containing 0.0%, 0.5%, 1.0% and 1.5% ESM respectively with group 1 serving as the control. The animals were given known quantity of supplementary feed, forage (Andropogon gayanus) and water between 8 and 9 am every morning. Initial blood samples were collected and analysed after the acclimatization period of 7days. The same procedure was repeated at the 6th and 12th week marking the end of the experiment. Haematological parameters were compared by weeks, significant difference (P<0.001) was observed on Packed Cell Volume and Haemoglobin. Significant difference (P<0.0001) was also observed on Mean Corpuscular Haemoglobin, Mean Cell Volume and Red Blood Cell as well as Monocytes at P<0.05. The animals suffered gastroenteritis between the 9th and 10th week thus the ESM and supplementary feed were cultured. The ESM culture isolated Escherichia coli thus the animals were treated with Streptomycin. It was therefore concluded that ESM may be a rich source of Calcium for growing WAD goats but must be thoroughly sterilized to yield desired result.

Utilização de farinha de casca de ovos em dietas para codornizes japonesas na fase de 11 a 25 semanas de idade

It was verified the possibility of replacement of limestone (CC) per quail eggshell meal (QSEM) in them diets in the phase of 11-25 weeks of age. It was used 192 Japanese quail (Coturnix coturnix japonica), distributed in a completely randomized design, consisting of three treatments (64 birds for treatment): Treatment 1: it was used 100% CC; Treatment 2: 50% of QESM + 50% CC and Treatment 3: 100% QESM. The parameters studied were: feed intake, egg production per bird-day, commercial egg production, egg weight, egg mass, feed conversion ratio per egg mass and per dozen eggs, shell thickness, specific weight, weights and percentages of yolk, albumen and shell. There was not significant effect when replacing 50% or 100 % of CC per QESM in feed intake, egg production per bird-day, commercial egg production, weight of yolk, percentages of yolk, albumen and shell, shell thickness and specific weight. However, there was significant effect: egg weight, egg mass, feed conversion ratios per egg mass and per dozen eggs and the weights of albumen and shell. It is concluded that the CC can be substituted by up to 100% QESM in diets for Japanese quails, in 11-25 weeks of age, without any reduction in productive performance.

New Methodologie Eco-Friendly Using Calcined Eggshell Meal Catalyst for Synthesis of Benzimidazoles, Benzoxazoles and Benzothiazoles

The Calcined Eggshell Meal (CEM) doped is a new solid support has been employed as a catalyst for efficient synthesis of benzimidazoles, benzoxazoles and benzothiazoles. Taking into account environmental and economical considerations, the handling of CEM used here presents many advantages such as simple and convenient procedure, easy purification and shorter reaction time and enhanced recycling possibilities, which are now well established in fine organic synthesis.

Calcined Eggshell Meal: New solid support for the Knoevenagel reaction in heterogeneous media

The Knoevenagel condensation is easily carried out without a solvent at room temperature using CalcinedEggshell Meal (CEM). Taking into account environmental and economical considerations, the handling ofCEM used here presents many advantages such as easier separation and recovery from the reaction mixtureand thus, enhanced recycling possibilities, which are now well established in fine organic synthesis.

Utilization of Egg Shell Waste by the Laying Hen

Egg shell waste produced by a local egg breaking plant was processed as granular egg shell meal and utilized as a dietary calcium source for laying hens to study its nutritional quality relative to ground limestone.One hundred and ninety-two Single Comb White Leghorn laying hens were fed diets containing 0, 1.75, 3.5, and 7% egg shell waste in place of ground limestone. Production traits and egg quality were studied during two different production periods, 27 to 51 weeks of age and 67 to 91 weeks of age. No differences in egg production and egg quality traits among treatments were found during the early period of the egg production cycle. During the latter period of the egg production cycle, egg shell diets supported significantly improved egg production and feed utilization. No significant improvement in egg and egg shell quality was observed. Possible explanation of the nutritional advantage of egg shell waste over ground limestone was discussed.

Effect of selected dietary additives on the incidence of dental caries in the rat.

Weanling rats fed a cariogenic diet supplemented with carbamyl phosphate, in combination with egg shell meal and trace elements, showed a striking reduction in the incidence of caries. The cariostatic efficacy of carbamyl phosphate is significant because it stimulates fluid movement within odontoblasts via the hypothalamic-parotid gland endocrine axis.

Acidogenic potential of cariogenic and noncariogenic diets in the rat.

No significant difference in lactic acid content was observed in dood residues removed from the occlusal grooves of rats receiving Purina lab chow or the 62% sucrose cariogenic diet. The incubation of rat saliva with Purina chow, with 62% sucrose diet, or with the 62% sucrose diet supplemented with carbamyl phosphate, egg shell meal, and the trace elements zinc, molybdenum, and chromium produced in 24 hours essentially the same pH surve. The terminaltitratable acidity observed in saliva incubated with the 62% unsupplemented diet, however, was significantly less than that produced in salivary mixtures containing either Purina chow or supplemented sucrose diets.

Nutritional Evaluation of Egg Shell Meal

Egg breaking plant waste was converted to egg shell meal and evaluated in laying hen rations. Two types of dryers were used. Meal processed in a triple pass rotary dehydrator supported the highest egg production. Meal dried in a flash tubular dryer increased egg weight in the full fed diet and specific gravity when the diet was control fed.The amino acid availability from egg shell meal was comparable to that from a combination of wheat middlings and meat and bone meal or soybean meal. Calcium from egg shell meal was readily utilized. The availability was equal to ground limestone.Reducing the protein and energy intake 10% by feed restriction, decreased egg production and egg weight. Egg shell quality was not improved by restricting feed intake.