scholarly journals SHORT-TERM EGG PRODUCTION AND PHYSICAL EGG CHARACTERISTICS IN A FLOCK OF HYBRID HUBBARD LAYERS

2021 ◽  
Vol 18 ◽  
pp. 93-97
Author(s):  
B. O. ASUQUO ◽  
O. OFOBRUKETA
Keyword(s):  
Feed Intake ◽  
Shell Thickness ◽  
Egg Production ◽  
Feed Consumption ◽  
Short Term ◽  
Egg Weight ◽  
Cage System ◽  
Egg Shell ◽  
Hybrid Layers

Short-term egg production and characteristics were studied using a total of 200 Hubbard hybrid layers under the battery cage system for four months. Birds were fed on battery layer mash (4080 kcal/kg M.E., 15.31% crude protien). Age at first egg (AFE) was 146 days. The highesthen-day egg production was 60.84% obtained at the 4th week in lay. Average hen-day and hen- housed production percentages for the study period stood at 50.08 and 48.05 respectively. Average egg weight was 53.24g ± 3.07 (Standard) with mean egg-shell thickness of 0.48mm ± 0.02. Average daily feed intake was 153.05g ± 1.82 per bird giving an average feed consumption of 3.7kg per dozen eggs. Mean albumen, yolk and shell weights were 33.81g, 13.52g and 6.06g respectively. 

scholarly journals A COMPARISON OF THE PERFORMANCE OF CAGED LAYERS FED SORGIIUM GRAIN OR PEARL MILLET*

2021 ◽  
Vol 15 ◽  
pp. 127-133
Author(s):  
J. Y. ODIBA ◽  
P. E. SANFORD
Keyword(s):  
Adverse Effects ◽  
Pearl Millet ◽  
Shell Thickness ◽  
Egg Production ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Egg Weight ◽  
Egg Shell ◽  
Sorghum Grain ◽  
Haugh Unit

Two 280-day trials, each involving 468, 22-week-old caged commercial egg-strain pullets were conducted to Compare millet and sorghum grain as the main source of energy in laying diets. Diets containing 59.2 and 0, 41.0 and 24.0, 31.2 and 36.3 and 0 and 72.5% of sorghum grain and pearl millet, respectively, were studied in both trials The diets containing millet supported egg production, egg weight, feed conversion and egg shell thickness equivalent to those of the all-sorghum diet. Except in Trial 1, feed consumption of the pullets fed the millet-containing   diets was not significantly lower than that of the pullets fed the all-sorghum diet. Haugh unit values tended to decrease as the level of millet was decreased. Feeding millet at a level as high as 72.5% Of the diet may have adverse effects on egg specific gravity and haugh units

scholarly journals PERFORMANS PRODUKSI DAN TEBAL KERABANG BURUNG PUYUH BETINA(Coturnix coturnix japonica) UMUR 6-14 MINGGU PADA LAMA PENCAHAYAAN YANG BERBEDA

ZOOTEC ◽  
2017 ◽  
Vol 38 (1) ◽  
pp. 142
Author(s):  
A. Suleman ◽  
L. Lambey ◽  
F. Nangoy ◽  
J. Laihat
Keyword(s):  
Shell Thickness ◽  
Egg Production ◽  
Animal Husbandry ◽  
Coturnix Japonica ◽  
Feed Consumption ◽  
Coturnix Coturnix Japonica ◽  
Egg Weight ◽  
Coturnix Coturnix ◽  
Female Quail ◽  
Egg Shell

PERFORMANCE PRODUCTION AND EGG SHELL THICKNESS OF QUAIL (Coturnix coturnix japonica) AT 6-14 WEEKS OLD AT DIFFERENT LIGHTING LENGTH. This study was done to determine the effect of the lighting length on the performance of quail production at 6-14 weeks old. This research was conducted at the experimental laboratory of Animal Production Department, Faculty of Animal Husbandry Sam Ratulangi University Manado, during the period from January 7, 2017 to March 3, 2017. The ration used was SP-22 commercial feed by PT. Sinta Fredmill. The total of quails used were 80 birds. Birds were maintained in a 60cm x 40cm baterrey system, using 5 watts power light. The variables measured were feed consumption, egg production and peak production, egg weight, and thickness of the egg shell. The design used in this study was a completely randomized design with 4 treatments and 5 replications. Each replication of experiment involved 4 quails with the treatments; R0 = 12 hours of illumination; R1 = 16 hours of illumination; R2 = 20 hours of illumination; R3 = 24 hours of illumination. Feeding and drinking water were prepared ad libitum. The result of the analysis showed that duration of lighting did not affect the averages of feed consumption, egg production, egg weight and egg shell thickness, but peak production could be reached more than 80% at the thirteenth week. Therefore, it can be concluded that the addition of light for female quail production at 6-14 weeks old did not affect feed consumption, peak production, egg weight, and thickness of the egg shell Keywords: Quail, performance production, lighting length illumination

scholarly journals Effects of environment on layer performance

1970 ◽  
Vol 8 (2) ◽  
pp. 253-258 ◽  
Author(s):  
S Talukder ◽  
T Islam ◽  
S Sarker ◽  
MM Islam
Keyword(s):  
Relative Humidity ◽  
Shell Thickness ◽  
Egg Production ◽  
Postmortem Examination ◽  
Feed Consumption ◽  
Environmental Condition ◽  
Productive Performance ◽  
Egg Weight ◽  
Egg Shell ◽  
Carbon Dioxide Co2

Ten layer farms (eight from Manikganj and two from Gazipur) were selected to evaluate the effect of the different environmental condition on layer performance. Temperature (°C) and relative humidity (%) were recorded and concentrations of carbon dioxide (CO2, ppm) and ammonia (NH3, ppm) were determined. Productive performance of flock was evaluated by measuring egg production, feed consumption, egg weight and egg shell thickness. The tolerable temperature for the layer was 15-27°C. High temperature (above 27°C) affects feed consumption, egg weight and egg shell thickness while relative humidity has less impact on egg production, egg weight and feed consumption. Feed consumption and egg weight were decreased markedly when CO2 and NH3 concentration were more than 3000 and 37 ppm, but not on egg shell thickness. Postmortem examination indicated that 51, 24, 11, 9 and 5% birds were died due to bacterial, viral, non-infectious, protozoal and fungal infection respectively. Improper environments reduced the chickens’ defenses, making them more vulnerable to diseases. Keywords: Temperature; Humidity; CO2; NH3; Layer performance DOI: 10.3329/jbau.v8i2.7934 J. Bangladesh Agril. Univ. 8(2): 253-258, 2010

scholarly journals Effect of dietary levels of calcium on performance of pullets and layers, physical characteristics of the egg, and calcium and phosphorus in plasma and bone.

1979 ◽  
Vol 27 (4) ◽  
pp. 305-312
Author(s):  
A.R. El Boushy ◽  
M.C. Papadopoulos
Keyword(s):  
Feed Intake ◽  
Shell Thickness ◽  
Egg Production ◽  
Breaking Strength ◽  
Soya Bean ◽  
Metabolizable Energy ◽  
Egg Weight ◽  
Inorganic P ◽  
Calcium And Phosphorus ◽  
Egg Shell

From 16 weeks old 432 chickens of a medium-heavy strain were given diets based on maize, soya bean oilmeal and barley with 1.5, 3.7 or 5.0% calcium and about 0.8% phosphorus. Diets supplied metabolizable energy 12.12, 11.35 or 10.96 MJ/kg. After a laying phase at 23 weeks old when they reached 50% production, chickens given 5.0% Ca weighed significantly less and tended to eat more than those given 1.5 or 3.7% Ca. Ca in plasma did not differ among groups but inorganic P was greater in those given 1.5% Ca than in others. During the laying period of 22 weeks egg production was greatest with 3.7% Ca. Feed intake, egg shell thickness, relative density of egg shell and proportion of shell increased with increasing Ca in the diet. Egg weight, albumen index and yolk index did not differ among groups. Tibial ash and breaking strength of tibia increased with increasing Ca in the diet. (Abstract retrieved from CAB Abstracts by CABI’s permission)

THE EFFECT OF GRADED LEVELS OF NICARBAZIN ON REPRODUCTIVE PERFORMANCE OF LAYING HENS

1989 ◽  
Vol 69 (3) ◽  
pp. 757-764 ◽  
Author(s):  
S. LEESON ◽  
L. J. CASTON ◽  
J. D. SUMMERS
Keyword(s):  
Reproductive Performance ◽  
Feed Intake ◽  
Egg Production ◽  
Visual Loss ◽  
Laying Hens ◽  
Marked Effect ◽  
Significant Loss ◽  
White Leghorn ◽  
Egg Weight ◽  
Egg Shell

Three experiments were undertaken to investigate the coccidiostat, nicarbazin, on reproductive performance of layers. In trial 1, levels of 0, 5, 10, 20, 40, 80, 125, and 200 ppm nicarbazin were fed to White leghorn laying hens for 5 wk. By the 2nd week of nicarbazin treatment, egg production was significantly reduced in birds fed 125 and 200 ppm (P < 0.05). Similarly, increasing levels of nicarbazin resulted in decreasing egg weights (P < 0.01) and feed intake was significantly decreased. However, by the 2nd week post-nicarbazin treatment, egg production, egg weight, and feed intake had returned to normal. Nicarbazin had no effect on egg shell deformation or body weight. Nicarbazin had a marked effect on hatchability; levels of 125 and 200 ppm reduced hatchability significantly (P < 0.01) as well as producing an increased incidence of malpositions and malformations. When nicarbazin was withdrawn from the diet, hatchability returned to pretreatment values although malpositions and malformations were still in evidence. Experiments 2 and 3 were designed to study the effect of nicarbazin on production of brown-shelled eggs. In the 2nd experiment 0, 5, 10, 20, and 40 ppm of dietary nicarbazin resulted in significant loss of shell color at 20 and 40 ppm, whereas in exp. 3 with levels of 0, 80, 125, and 200 ppm, brown eggs lost virtually all their color. It is concluded that the adult White Leghorn bird can tolerate up to 125 ppm nicarbazin without significant (P < 0.01) loss of reproductive performance although lower levels show a trend for reduced production. Hatchability is depressed with nicarbazin levels in excess of 80 ppm, while trace levels will produce a visual loss of color in brown-shelled eggs. Key words: Layer, coccidiostat, reproductive performance

Effect of methionine and lysine supplementation of diets for laying hens, on production and feed intake

1976 ◽  
Vol 27 (5) ◽  
pp. 739 ◽  
Author(s):  
MW McDonald ◽  
IJ Bruce
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Egg Production ◽  
Function Analysis ◽  
Basal Diet ◽  
Metabolizable Energy ◽  
Feed Consumption ◽  
Multiple Regression Equation ◽  
Weight Changes ◽  
Egg Weight

Six diets containing five levels of methionine and two of lysme were each fed to 12 Leghorn and 12 Australorp pullets for a period of 16 weeks Body weight changes, egg production, egg weight and feed intake were measured Although responses to the diets did not differ significantly In univariate analyses, multrvarrate analysis lndicated a srgnificant interaction between breeds and diets. Increased methionine produced small, significant Increases In egg weight, although responses were inconsistent at different levels Body weight gains were not significantly different between diets. Egg production and feed consumption were significantly affected by diet?, but the pattern of response was also inconsistent. A discriminate function analysis showed a consistent response to increased methionine, which indicated that the basal diet was deficient and that the pullets required a total of 0 275% methionine in their diet Lysine supplementation produced a 'significant decrease In feed intake but had no significant effect on any other variable.A multiple regression equation relating metabolizable energy intake to the variables measured in the experiment was calculated and compared with others reported In the literature This was used to predict the requirements of the pullets for a number of essential amino acids.

scholarly journals EVALUATION OF WATER HYACINTH (EICHORNIA CRASSIPES) AS FEED INGREDIENT AND YOLK COLOURING AGENT IN LAYERS DIETS.

2021 ◽  
Vol 24 (1) ◽  
Author(s):  
F. A. S. Dairo
Keyword(s):  
Feed Intake ◽  
Water Hyacinth ◽  
Shell Thickness ◽  
Egg Yolk ◽  
Feed Conversion ◽  
Egg Weight ◽  
Mean Values ◽  
Treatment Parameter ◽  
The Mean ◽  
Egg Shell

Sixty-four Black Harco breed of laying hens, 39 weeks in lay were fed water hyacinth Eichhorria crassipes at dietary levels of 0, 5, 10, and 15% for 56 days. The experiment had eight birds in each of the 2 replicates per treatment with the E. crassipes levels of inclusion as treatment. Parameter study include body weight change, feed intake, egg weight, egg yolk coloration, egg shell thickness and feed conversion ratio (feed/kg egg). The mean feed intake significantly decreased (P<0.05) among the mean values of 126.98, 127.27, 127.27 and 122.59 g/day for 0, 5, 10 and 15% inclusion levels respectively. the egg shell thickness increased significantly (P<0.05) among the mean values obtained i.e from 0.51-0.67 mm. however, egg weight changes, egg yolk coloration and feed conversion ration did not show any significant difference (P>0.05) among the respective means. E. crassipes appears to be optimally utilized at 5% dietary level  in layers ration and could be used as pigmenter for egg yolk coloration at this level.

Use of L-carnitine and humate in laying quail diets

2005 ◽  
Vol 53 (3) ◽  
pp. 361-370 ◽  
Author(s):  
Sakine Yalçin ◽  
A. Ergün ◽  
Handan Erol ◽  
Suzan Yalçin ◽  
B. Özsoy
Keyword(s):  
Egg Production ◽  
Feed Consumption ◽  
Control Group ◽  
Carnitine Supplementation ◽  
Egg Weight ◽  
Treatment Groups ◽  
Laying Performance ◽  
Egg Albumen ◽  
Egg Shell ◽  
Haugh Unit

This experiment was carried out to determine the effects of using L-carnitine and humate alone or in combination in quail diets on laying performance, egg traits and blood parameters. A total of 280 Japanese quails aged 10 weeks, divided into one control group and three treatment groups, were used. The diets of the first, second and third treatment groups were supplemented with 100 mg L-carnitine/kg, 1.5 g humate (Farmagülatör® Dry Plus)/kg and 100 mg L-carnitine + 1.5 g humate/kg, respectively. The experimental period lasted 16 weeks. The addition of L-carnitine and sodium humate alone or in combination did not significantly affect body weight, feed consumption, egg production, feed conversion ratio, mortality, egg-shell thickness, egg yolk index and the percentages of egg-shell, albumen and yolk. Egg weight increased (P < 0.001) with L-carnitine supplementation. The values of egg albumen height (P < 0.05), egg albumen index (P < 0.01) and egg Haugh unit (P < 0.05) were increased with humate supplementation. Egg cholesterol content and blood serum parameters were not affected by the supplementation of L-carnitine with or without humate. The results in this study demonstrated that L-carnitine supplementation increased egg weight while humate addition increased egg albumen index and egg Haugh unit of laying quails. However, the combined administration of L-carnitine and humate did not have any significant effects on the parameters measured.

scholarly journals The effects of humic acid on egg production and egg traits of laying hen 

2012 ◽  
Vol 50 (No. 9) ◽  
pp. 406-410 ◽  
Author(s):  
S. Kucukersan ◽  
K. Kucukersan ◽  
I. Colpan ◽  
E. Goncuoglu ◽  
Z. Reisli ◽  
...  
Keyword(s):  
Humic Acid ◽  
Feed Efficiency ◽  
Egg Production ◽  
Egg Quality ◽  
Experimental Period ◽  
Feed Consumption ◽  
Egg Weight ◽  
Egg Shell ◽  
Haugh Unit

The effects of humic acid on feed consumption, egg production, feed efficiency, egg weight and external and internal egg quality of laying hens were studied during feeding periods. A total of 180 (Hysex Brown) layers (36 weeks of age) were used in this experiment. There was one control and two experimental groups, each containing 60 hens and 4 subgroups. The experimental period lasted 16 weeks. At the end of the experiment, the supplementation of humic acid had a significant effect on feed consumption and feed efficiency. An increase in egg production was determined when humic acid was added to the diets at 30 g/t of feeds (91.70%) and 60 g/t of feeds (91.32%). There were no significant differences between the groups in egg shell thickness, egg shell breaking strength, yolk index, albumen index and Haugh unit. It can be therefore concluded that the dietary supplementation of humic acid at doses of 30 and 60 g/t feed can be used to improve egg production, egg weight and feed efficiency.

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