Egg production performance, egg yolk antioxidant profile and excreta concentration of corticosterone in golden pheasants (Chrysolophus pictus) fed diets containing different levels of green vegetables

2016 ◽  
Vol 101 (5) ◽  
pp. e31-e42 ◽  
Author(s):  
S. S. Kullu ◽  
A. Das ◽  
S. K. Bajpai ◽  
A. K. Garg ◽  
R. K. Yogi ◽  
...  
Keyword(s):  
Egg Production ◽  
Egg Yolk ◽  
Production Performance ◽  
Antioxidant Profile ◽  
Different Levels

scholarly journals The effect of raw soybeans in mixtures for laying hens on production performance and the relative weight of the pancreas

2014 ◽  
Vol 30 (1) ◽  
pp. 115-123
Author(s):  
V. Petricevic ◽  
M. Lukic ◽  
Z. Pavlovski ◽  
Z. Skrbic ◽  
Z. Jokic ◽  
...  
Keyword(s):  
Food Consumption ◽  
Egg Production ◽  
Laying Hens ◽  
Relative Weight ◽  
Production Performance ◽  
Heat Treated ◽  
Body Weights ◽  
Standard Level ◽  
Production Body ◽  
Different Levels

The study was conducted on Isa Brown hybrid hens at the age of 49-57 weeks. The effect of using different levels of share of raw soybean of two varieties in mixtures for feeding hens on egg production, body weight, food consumption, the occurrence of defective eggs, mortality and the relative weight of the pancreas was studied. The possibility of replacing the heat-treated soybean grains, varieties Lana, with reduced trypsin inhibitor (TI) and Lydia with a standard level of TI, with raw soybean grains was examined. The research was conducted on the principle of two factorial experiment 2 x 4 (2 varieties x 4 levels of share of raw grain in the mixture) with a total of 8 diet treatments and 4 replicates per each treatment. In the first 5 weeks of the study, the differences in the number of eggs produced under the influence of tested factors were not significant. Under the influence of soybean varieties, the level of share of raw soybean and interaction of the studied factors showed significant differences (p<0.01) after 53 week of age. The use of soy with lower TI in the diet for laying hens resulted in a significantly greater capacity compared to standard variety. The share of raw soybean grains of 8 % in the mixtures significantly reduced the number of eggs laid. The differences in body weights, food consumption, occurrence of defective eggs and the relative weight of the pancreas were not significantly influenced by the studied factors or by their interaction effect.

scholarly journals Supplementation of spirulina (Spirulina platensis) on yolk colour, egg quality and production performance of laying hens

2018 ◽  
Vol 34 (2) ◽  
pp. 71-78
Author(s):  
M Ahammed ◽  
S Sharmin ◽  
A Khatun ◽  
KMS Islam
Keyword(s):  
Spirulina Platensis ◽  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Dietary Supplementation ◽  
Egg Yolk ◽  
Production Performance ◽  
Dietary Treatments

A total of 96 Shaver 579 laying hens of 78 weeks of age were studied for the effects on egg production of dietary supplementation with spirulina (Spirulina platensis). The hens were divided into four dietary treatments with six replications of four birds in each group. Birds of three groups were supplemented with 0.1%, 0.2% and 0.3% spirulina and one group was kept as control. Yolk colour significantly improved (P<0.01) as compared to control, without affecting any other production performances. It is suggested that dietary supplementation of spirulina at 0.2 to 0.3% levels in aged laying hens enhanced egg yolk colour. Bangl. vet. 2017. Vol. 34, No. 2, 71-78

scholarly journals Evaluating the effects of crab meal, Carophyll Red®, and Carophyll Yellow® in laying hen diets on egg yolk pigmentation and production performance

2008 ◽  
Vol 88 (4) ◽  
pp. 637-640 ◽  
Author(s):  
Derek M Anderson ◽  
Janice L MacIssac ◽  
Michelle A Daniel ◽  
Tara L MacKinnon ◽  
Krista L Budgell
Keyword(s):  
Key Words ◽  
Egg Production ◽  
Egg Yolk ◽  
Laying Hen ◽  
Production Performance ◽  
White Leghorn ◽  
Effect Of Treatment

A total of 480 Babcock White Leghorn hens (65 wk of age) were randomly assigned to one of five diets [wheat-based control (C), 10 g t–1 Carophyll Red® (CR), 20 g t–1 Carophyll Yellow® (CY), 10 g t–1 CR + 20 g t–1 CY (CR + CY), 80 kg t–1 crab meal (CM)] for 60 d. There was no effect of treatment on egg production. There was an increase in red pigmentation (a* score) on day 45 among treatments supplemented with CR, CR + CY and CM when compared with C and CY. The laying hen was capable of depositing the natural carotenoid supplied by the CM into the egg yolk. Key words: Laying hen, crab meal, carotenoids, astaxanthin, yolk pigmentation

Effect of Supplementation of Multi Enzymes on Production Performance and Egg Quality Traits in White Leghorn Layers

2016 ◽  
Vol 12 (2) ◽  
Author(s):  
C. Pandian ◽  
A. Sundaresan ◽  
A. V. Omprakash
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Live Weight ◽  
Economic Benefits ◽  
Production Performance ◽  
Feed Consumption ◽  
Quality Traits ◽  
White Leghorn ◽  
Significant Difference ◽  
Enzyme Supplementation

The present study was conducted to assess the effect of supplementation of Multi-enzymes with lysophospholipids on production performance of pure line White Leghorn layers. Body weights before and after the experiment did not differ significantly across the experimental diets. Irrespective of the dietary treatments, the birds gained 3.83 per cent of live weight relative to its initial body weight. Mean per cent Hen housed egg production was significantly (Pis less than 0.05) higher in diet supplemented with 0.10 MEC-L than other groups. Mean egg weight and average daily feed consumption during 25 to 35 weeks of age indicated no significant effect of enzyme supplementation. Average daily feed consumption per bird in control, 0.05 % and 0.1% multi-enzyme supplemented groups was 108.13, 105.66 and 107.67 g respectively and birds offered control diet recorded numerically more feed intake than enzyme supplemented groups. Comparatively low feed per egg was observed in 0.10 per cent group followed by 0.05 per cent group which offers economic benefits than control diets. However, the egg quality traits between different dietary enzyme supplementation groups showed no significant difference.

scholarly journals Effects of Bacillus subtilis on Production Performance, Bone Physiological Property, and Hematology Indexes in Laying Hens

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 2041
Author(s):  
Xinyu Zou ◽  
Sha Jiang ◽  
Mi Zhang ◽  
Haiqiang Hu ◽  
Xiaoling Wu ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Egg Production ◽  
Laying Hens ◽  
Maximum Load ◽  
Physiological Property ◽  
Production Performance ◽  
Feed Additive ◽  
Basic Diet ◽  
Bone Damage ◽  
Diet Control

This study was to investigate the effects of Bacillus subtilis on production performance and bone pathophysiological characteristics of layers. Twenty-four 48-week-old Lohmann Pink-shell laying hens were randomly divided into two groups: a basic diet (control) and the basic diet mixed with Bacillus subtilis (0.5 g/kg) for a 60-day trial. Statistically, independent-sample t-test was used to assess the treatment differences. The results showed that Bacillus subtilis supplementation improved the percent of marketable eggs (p < 0.05) with reduced numbers of broken and soft-shelled eggs but had no effects on egg weight, height of albumen, yolk color, and Haugh unit (p > 0.05). Bacillus subtilis supplement also elevated maximum load (p = 0.06), maximum stress (p = 0.01), stiffness (p < 0.01), and Young’s modulus (p < 0.01) but suppressed maximum strain (p = 0.06) in the femur. In addition, compared with control birds, phosphorous concentration (p < 0.01) was reduced in serum at day 61 but increased in the femur (p < 0.05) in Bacillus subtilis fed birds. Bacillus subtilis fed birds also had lower magnesium concentrations in both femur (p = 0.04) and feces (p = 0.09). Furthermore, Bacillus subtilis increased plasma estrogen concentration (p = 0.01) and femur TNF receptor superfamily member 11b (OPG) expression (p < 0.05) but reduced plasma IL-1 (p < 0.01) and TNF-α (p < 0.01) concentrations. These results indicate that Bacillus subtilis could be used as a health promotor to reduce overproduction-induced inflammation and associated bone damage and to increase marketable egg production. The data provide evidence for developing a management strategy to use Bacillus subtilis as a feed additive to improve marketable egg production and health and welfare status of laying hens.

scholarly journals Modelling the egg components and laying patterns of broiler breeder hens

2016 ◽  
Vol 56 (7) ◽  
pp. 1091 ◽  
Author(s):  
Nayara T. Ferreira ◽  
Nilva K. Sakomura ◽  
Juliano César de Paula Dorigam ◽  
Edney Pereira da Silva ◽  
Robert M. Gous
Keyword(s):  
Egg Production ◽  
Feeding Strategy ◽  
Simulated Data ◽  
Egg Yolk ◽  
Broiler Breeders ◽  
Broiler Breeder ◽  
Reproductive Process ◽  
Breeder Hens ◽  
Laying Performance ◽  
Broiler Breeder Hens

There is scant information about the reproductive process in broiler breeders, with which to develop a feeding strategy that will be economically optimal for these birds. This study aimed to model the egg production of a flock of broiler breeder hens, using non-isometric equations. The number of eggs produced by 60 broiler breeder hens aged 24–60 weeks was monitored, as was the weight of these eggs and the weights of the components, yolk, albumen and shell. Oviposition sequences and the number and length of pauses between sequences were analysed. Non-isometric functions were applied to predict the weight of the egg; yolk weight was predicted from the age of the hen, while albumen and shell weights were predicted from yolk weight; and egg weight was obtained by summing the component weights. The incidence of soft-shelled and double-yolk eggs was also determined. Yolk weight (YW, g) can be described as YW = 18.03 × (1 – e–0.015 × (t – 103.4)) × e(0.001 × t), where t is the age of the bird (days). The weights of albumen (AW) and shell (SW) were based on YW predictions as follows: AW = 14.38 × YW0.375 and SW = 0.358 × (YW + AW)0.687. The rate of double-yolk egg (DY) production is described by DY = 2.28 × e(0.209 × TFE), and the rate of soft-shelled egg (SS) production by SS = 1.126 + 0.148/(1 – 0.024 × TFE) – 0.056 × TFE, as a function of time from first egg (TFE). On the basis of the results obtained, the model developed here is an accurate reflection of the changes that occur in the number of eggs produced by broiler breeders, as well as in the egg itself and in its components over the entire laying period. This model can thus be used in predicting the nutrient requirements of individual broiler breeder hens, which, when combined with simulated data from a large number of individuals, will accurately describe the laying performance of a flock of broiler breeders.

EFFECT OF DIFFERENT LEVEL OF TRIDAX PROCUMBENS ON PERFORMANCE OF LAYERS

2021 ◽  
Vol 26 ◽  
pp. 53-56
Author(s):  
A. O. Fanimo ◽  
A. B. J. Aina ◽  
E. B. Oguntona
Keyword(s):  
Feed Intake ◽  
Egg Production ◽  
Colour Intensity ◽  
Egg Weight ◽  
Tridax Procumbens ◽  
Different Levels

Two experiments were conducted concurrently to assess the effect of different levels of fresh and dry Tridax procumbens on performance of layers. 720 Hbbard layers were grouped into 6 treatments of 60 birds per treatment in each experiment. The treatment in consisted of 0, 2, 4, 6, 8 and 10% inclusion rates of fresh and dry Tridax procumbens in first and second experiments, respectively. Tridax leaves, irrespective of the form and level had no significantly (P > 0.05) effect on egg production, egg weight and feed intake. Inclusion of Tridax either in fresh or dry form increased (P < 0.05) yolk colour, while the yolk colour intensity was more pronounced (P < 0.05) in the dry Tridax than the fresh Tridax experiment.

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