scholarly journals  Efficacy of contrast levels of non-phytate phosphorus and Aspergillus niger phytase in hens fed wheat-maize-based diets

2012 ◽  
Vol 57 (No. 11) ◽  
pp. 499-505 ◽  
Author(s):  
M. Englmaierová ◽  
G. Dlouhá ◽  
M. Marounek ◽  
M. Skřivan
Keyword(s):  
Shell Thickness ◽  
Egg Production ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Physical Parameters ◽  
Feed Conversion ◽  
Shell Quality ◽  
Phytate Phosphorus ◽  
P Content ◽  
Laying Performance

A 2 × 2 factorial design experiment examined the effect of dietary non-phytate phosphorus (NPP) (1.3 and 4.0 g/kg) and 3-phytase (F) (0 and 150 FTU/kg) on the performance indicators of hens, physical parameters of eggs, phosphorus (P) content of the eggshells, and the pH of the digestive tract of laying hens. Two hundred and forty hens (ISA Brown) were housed in enriched cages and fed a wheat-maize-based diet. A significant effect of both NPP and F was found for the yolk colour (P = 0.016) and shell thickness (P = 0.038). The F supplement or higher level of NPP alone and in combination increased the value of the yolk colour and shell thickness. The supplementation of the basal diet with F significantly increased the laying performance, especially with regard to the egg weight and feed conversion ratio. The higher dose of NPP had a negative effect on the egg production, feed intake, and feed conversion ratio. The lower level of NPP (1.3 g/kg) decreased the internal egg quality and shell quality, except for the shell strength. In contrast, the addition of 3-phytase to the diet increased the shell thickness and shell weight. The P content in the eggshells was not influenced by the dietary treatment. The higher level of NPP or F increased the pH in the gizzard to a value suitable for F activity. The hens fed a diet containing 1.3 g/kg NPP achieved a higher performance; moreover, the F supplement at 150 FTU/kg increased the external quality of the eggs.  

scholarly journals THE EFFECT OF DIETARY VITAMIN E AND ZINC LEVELS ON PERFORMANCE AND LIPID OXIDATION IN FRESH AND STORED EGGS OF LAYING DUCKS

2017 ◽  
Vol 41 (2) ◽  
pp. 169
Author(s):  
Arif Darmawan ◽  
Sumiati Sumiati ◽  
Widya Hermana
Keyword(s):  
Vitamin E ◽  
Feed Intake ◽  
Egg Production ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Dietary Vitamin ◽  
Feed Conversion ◽  
Egg Weight ◽  
Organic Zinc ◽  
Zinc Levels

Vitamin E and zinc are necessary for preventing free radical damage to phospholipid membranes, enzymes and other important molecules. The objective of this study was to evaluate the effect of dietary vitamin E and zinc levels on performance and lipid oxidation in fresh and stored eggs of laying duck. A total of 90 of 22 weeks old ducks were randomly divided into 15 experimental units by assigning a completely randomized design with 5 treatments and 3 replications. The treatment diets were R1 (control diet), R2 (R1+40 IU vitamin E), R3 (R1+80 IU vitamin E), R4 (R1+100 ppm organic zinc), and R5 (R1+200 ppm organic zinc).The experiment was carried out for 8 wk. Parameters observed were feed intake, egg production, egg weight, feed conversion ratio, and Thiobarbituric Acid Reactive Substances (TBARS) value. The results showed that increasing of vitamin E from 40 IU to 80 IU and zinc from 100 ppm to 200 ppm did not affect feed intake and egg weight. Otherwise, the dietary Vitamin E and organic zinc significantly decreased (P<0.05) feed conversion ratio and significantly increased (P<0.05) egg production and decreased (P<0.01) TBARS values. It is concluded that dietary 40 IU vitamin E or 100 ppm organic zinc could increase the performance of laying ducks and dietary 200 ppm organic zinc was more efective to be antioxidant than 40 and 80 IU vitamin E.   

scholarly journals Performance and Egg Qualities of Isa-Brown Layers Fed Different Quantities of Feed at Varying Feeding Frequencies

2020 ◽  
Vol 8 (4) ◽  
pp. 864-872
Author(s):  
Muyiwa Adegbenro ◽  
Abiodun S. Ajidara ◽  
Stephen G. Modupe ◽  
Gbenga E. Onibi
Keyword(s):  
Experimental Design ◽  
Laying Hens ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Egg Mass ◽  
Feed Conversion ◽  
Laying Performance ◽  
Net Profit ◽  
Randomized Experimental Design ◽  
Poultry Farmers

Most poultry farmers in Nigeria feed their laying birds twice a day with one bag of 25 kg to 200 layers which translate to 125g/bird/day, while very few feed once or thrice a day and there has been little or no documentation on how many times laying hens should be fed in a day to optimize profit. Thus, this study was designed to investigate the performance and egg qualities of Isa-Brown layers fed different quantities of feed at varying feeding frequencies. Three hundred and sixty (360) 16-weeks in-lay Isa-Brown layers were used in this trial. The treatment consisted of 95g, 105g, 115g, and 125g of feed per day at varying frequencies of once, twice and thrice per day. The birds were housed in California type cages, 3 birds per cage unit, 5 cage units per replicate, and 6 replicates per treatment. A completely randomized experimental design with a 4x3 factorial was adopted. Results at the end of the trial showed that bird fed 115g of feed twice per day had the highest percentage hen-day production (85.24%), highest egg mass (56.69g) and best feed conversion ratio (1.96) while lowest percentage hen-day production (62.02%) and lowest egg mass (39.22g) were observed in hen fed 95g of feed thrice per day and worst feed conversion ratio (2.50) was recorded in bird fed 125g of feed thrice per day. The bird fed 115g twice per day had the highest net profit (N637.63) while the lowest net profit (N199.33) was recorded in bird fed 125g thrice per day. It could be concluded that for optimum laying performance and to save time and labour expended in feeding birds thrice per day, feeding laying Isa-Brown birds the required feed quantity (115g) twice per day would be most economical.

scholarly journals Effects of Herbal Essential Oil Mixture as a Dietary Supplement on Egg Production in Quail

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Metin Çabuk ◽  
Serdar Eratak ◽  
Ahmet Alçicek ◽  
Mehmet Bozkurt
Keyword(s):  
Essential Oil ◽  
Dietary Supplement ◽  
Egg Production ◽  
Control Diet ◽  
Basal Diet ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Conversion ◽  
Foeniculum Vulgare ◽  
Treatment Groups

One hundred and eighty 7-week-old laying quail were fed various diets over a 12-week period. The diets included a control diet (without essential oil mixture (EOM) or antibiotics (ANTs)), a basal diet including EOM (24 mg/kg feed), and a basal diet including an ANT (avilamycin, 10 mg/kg feed). Each treatment comprised 4 replications with 4 cages (15 quail per cage), amounting to 60 quail per treatment group. Diets (in mash form) and water were provided forad libitumconsumption. EOM consisted of 6 different essential oils derived from the following herbs: oregano (Origanumsp.), laurel leaf (Laurus nobilisL.), sage leaf (Salvia trilobaL.), myrtle leaf (Myrtus communis), fennel seeds (Foeniculum vulgare), and citrus peel (Citrussp.). In comparison with the control diet, adding supplements such as EOM and ANTs to the basal diet increased egg production in quail (P<0.001). However, egg production was similar between EOM and ANT treatment groups. Moreover, there were no differences between the treatment groups with regard to egg weight. Feed intake was not affected by EOM or ANT supplementation, whereas feed conversion ratio was significantly improved by EOM and ANT supplementation. Thus, we concluded that EOM has beneficial effects as a dietary supplement on egg production and feed conversion ratio.

Influence of peeling and inorganic calcium concentration on the utilisation of giant taro (Alocasia macrorrhiza) corm meal by laying hens

2019 ◽  
Vol 59 (8) ◽  
pp. 1553 ◽  
Author(s):  
S. S. Diarra ◽  
I. Wamekeni ◽  
A. Vunagilee ◽  
H. Lavaka ◽  
T. Finau
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Shape Index ◽  
Egg Mass ◽  
Feed Conversion ◽  
Shell Quality ◽  
Laying Performance ◽  
Calcium Source ◽  
Main Effects

The effects of peeling and limestone flour level on the utilisation of Alocasia macrorrhiza corm meal (ACM) by laying hens were investigated. Maize-based diets with two concentrations of limestone flour (40 and 60 g/kg) and diets containing 200 g peeled and unpeeled ACM meal/kg with the same levels of limestone flour were fed to five replicate pens containing 10 20-week-old Shaver brown pullets (1635 ± 148 g), each for 105 days. Results showed no interaction or main effects of ACM or limestone concentration on feed intake, egg weight, egg mass, feed conversion efficiency, egg shape index, surface area and Haugh unit (P &gt; 0.05). Feeding whole ACM with 40 g limestone/kg diet reduced hen-day production and shell thickness (P &lt; 0.05) but this was overcome by increasing limestone concentration to 60 g/kg diet. Peeled ACM with both concentrations of limestone flour maintained laying performance and egg quality. We concluded that feeding 200 g whole ACM depresses egg production and shell quality in laying hens, but increasing dietary limestone concentration overcomes this adverse effect. The concentration of limestone flour in the diet has no effect on laying performance. Higher inclusion levels of ACM, calcium source and level that will maintain laying performance and reduce feed cost need to be investigated.

Performance of broilers and layers supplemented with Moringa stenopetala leaf meal under hot humid tropical conditions

2020 ◽  
Vol 60 (17) ◽  
pp. 1987
Author(s):  
Metekia Tamiru ◽  
Shiferaw Ashagrie ◽  
Ashraf Alkhtib ◽  
Minyehun Getachew ◽  
Solomon Demeke ◽  
...  
Keyword(s):  
Heat Stress ◽  
Egg Production ◽  
Egg Quality ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Conversion ◽  
Moringa Stenopetala ◽  
Meat Weight ◽  
Leaf Meal ◽  
Tropical Conditions

Context Heat stress poses a major limit to poultry production. Moringa stenopetala leaf meal (MSL) could be a promising feed additive for poultry raised under heat stress, as it is rich in antioxidants. Aims To determine the effect of (MSL) supplementation on the production and quality of broilers under heat-stress conditions. Methods In the broiler performance trial, 156 1-day old Cobb 500 broilers were assigned to four groups, with each containing three replicates of 13 chicks. For the egg production trial, 108 Bovan Brown layers aged 20 weeks were allocated to four groups, with each containing three replicates of nine hens. The four groups of broiler and layer chicken were supplemented with MSL at a level of 0% (control), 1% (MSL1), 1.5% (MSL1.5) and 2% (MSL2). Relative humidity, and minimum and maximum temperatures were 82%, 13°C and 23°C respectively. The effects of MSL supplementation on growth performance, characteristics of digestive organs, carcass traits, egg production and egg quality were analysed with one-way ANOVA. Key results Moringa stenopetala-leaf supplementation at a level up to 2% (MSL2) did not significantly affect feed intake, weight gain or feed conversion ratio of the birds. Supplemented broilers had a significantly longer large intestine (24% for MSL1, 37% for MSL1.5 and 49% for MSL2) and a heavier pancreas (82% for MSL1, 67% for MSL1.5, and 57% for MSL2) than did the control broilers. Hot and cold carcass weights, dressing yield, dressing percentage, breast-meat weight, drumstick and thigh-meat weights, wing-meat weight, back weight and meat pH were not significantly affected by MSL supplementation. Ash content of meat of the MSL2-fed birds was significantly higher than that of the control birds (3.51% vs 2.74% respectively). Egg production, feed conversion ratio and interior and exterior egg-quality parameters were not significantly affected by MSL supplementation. Intensity of yolk colour was significantly and linearly enhanced due to MSL supplementation (by ~5–8 times compared with the control). Conclusions Supplementation with MSL at a level up to 2% improved yolk colour of Bovan Brown layer eggs, with no effect on meat and egg production. Implications Yolk colour of eggs of layers raised under heat stress can be improved by MSL supplementation at 1%, with there being a minimum increase in the diet cost.

scholarly journals COMBINATION OF USING COW FECES POWDER AND PROBIOTIC IN FEED FOR LAYER NATIVE CHICKEN

2016 ◽  
Vol 20 (2) ◽  
pp. 47
Author(s):  
Suprio Guntoro ◽  
Anak Agung Ngurah Badung Sarmuda Dinata ◽  
I Wayan Sudarma
Keyword(s):  
Drinking Water ◽  
Egg Production ◽  
Food Prices ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Conversion ◽  
Free Range ◽  
Native Chicken ◽  
Physical Composition ◽  
Chicken Farm

The development of free-range chicken farm is constrained by expensive food prices. On the other hand,feses of cattle had potential use as a source of feed. This study was conducted to determine the response ofcow feses and probiotics administration in the diet of laying range chicken. The study was conducted over 6months using 240 free-range chickens aged 8 months. Research was arranged in a completely randomized designwith 8 treatments and 5 replications. The treatment given were ration in accordance with the farmers formulacomprising: concentrate: 25%, corn 40% and rice bran 35% (P0) and ration as P0, with the substitution of ricebran with fermented cow feses each treatment with level 10 % (P1), 15% (P2) and 20% (P3) and ration as atP0, P1, P2 and P3 that received additional probiotic (Bio L) 1 cc / L of drinking water (P4, P5, P6 and P7). Theparameters were observed are: egg production (hen day), egg weight, feed intake, FCR (Feed Conversion Ratio)mortality and physical composition of eggs. The results showed that the diet which containing fermented cowfeses 20% did not decreased egg production and feed efficiency. The combination of fermented cow feses at thelevel of 20% with a probiotic (Bio L) 1 cc / L of drinking water showed that egg production  increased althoughit is not significant and reduce the number of FCR (Feed Conversion Ratio). In conclusion the use of fermentedcow feses up to the level of 20% in the diet both with and without the administration of probiotics, has no effecton physical composition of eggs.

Influence of high calcium rearing diets, Christmas Island phosphate and ethylenediamine-tetraacetic acid on the laying performance of White Leghorn × Australorp hens

1977 ◽  
Vol 17 (89) ◽  
pp. 944
Author(s):  
H Karunajeewa
Keyword(s):  
Feed Intake ◽  
Egg Production ◽  
Daily Intake ◽  
White Leghorn ◽  
Feed Conversion ◽  
Shell Quality ◽  
Christmas Island ◽  
Laying Performance ◽  
High Calcium ◽  
Reduced Rate

White Leghorn x Australorp pullets were reared on diets with either low (0.91-1.12 per cent) or high (1.45-1.93 per cent) levels of calcium; in the laying phase pullets from each rearing regime were fed diets with either sterilized bone meal or Christmas Island phosphate as sources of supplemental phosphorus. Each of these layer diets was supplemented with 0, 300 or 500 p.p.m. of EDTA. The level of calcium in the rearing diets had no significant effect on liveweight, feed intake or mortality of the pullets during either the rearing or laying phases. High calcium starter and grower diets, however, reduced rate of lay by 2.1 per cent (P < 0.05) and efficiency of feed conversion by 3.7 per cent (P < 0.01). There was also a non-significant tendency to lower shell thickness. The inclusion of 2.5 per cent Christmas Island phosphate in the laying diet, resulting in a daily intake of 46 mg of fluorine per hen, decreased rate of lay by 2.2 per cent (P < 0.05), hen-housed egg production by 11 eggs (P < 0.05) and efficiency of feed conversion by 5.0 per cent (P < 0.01). The addition of 300 p.p.m. EDTA to the laying diet significantly (P < 0.01) improved efficiency of feed conversion by 4.7 per cent. Neither the source of phosphorus nor the dietary level of EDTA had any significant effects on liveweight, egg weight, feed intake, shell quality or mortality.

scholarly journals ẢNH HƯỞNG CỦA MÙA VỤ ĐẾN NĂNG SUẤT SINH SẢN CỦA CHIM CÚT NUÔI TẠI THỪA THIÊN HUẾ

2020 ◽  
Vol 4 (2) ◽  
pp. 1871-1877
Author(s):  
Trần Ngọc Long ◽  
Văn Ngọc Phong ◽  
Lê Đình Phùng
Keyword(s):  
Reproductive Performance ◽  
Egg Production ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Viet Nam ◽  
Spring Season ◽  
Feed Conversion ◽  
Egg Weight ◽  
Autumn Season

Nghiên cứu nhằm đánh giá ảnh hưởng của mùa vụ đến năng suất sinh sản của chim cút nuôi tại Thừa Thiên Huế. Thí nghiệm đã được tiến hành trên 108 chim cút đẻ trứng thương phẩm trong 6 tháng đẻ trứng vào 2 mùa vụ bắt đầu đẻ trứng: vụ Đông - Xuân (từ 12/2018 đến 5/2019) và vụ Hè - Thu (từ 6/2019 đến 11/2019). Chim cút được cho ăn thức ăn hỗn hợp hoàn chỉnh cho cút đẻ của công ty cổ phần Greenfeed Việt Nam. Kết quả nghiên cứu cho thấy đàn chim cút đẻ vào vụ Đông - Xuân có năng suất trứng và tỷ lệ đẻ lần lượt là 20,76 quả/mái/tháng và 69,21%; cao hơn so với đàn chim cút đẻ vào vụ Hè - Thu với kết quả tương ứng là 18,25 quả/mái/tháng và 60,84% (P<0,05). Hệ số chuyển hóa thức ăn (FCR)  trung bình cả giai đoạn của đàn chim cút được nuôi trong vụ Đông - Xuân thấp hơn so với vụ Hè – Thu (3,22 so với 3,75 kg thức ăn/kg trứng) (P<0,05). Khối lượng trứng trung bình của đàn chim cút dao động từ 10,49 đến 10,74 g/quả. Tỷ lệ lòng trắng trứng của trứng cút đẻ trong vụ Đông - Xuân thấp hơn so với đàn chim cút đẻ trong vụ Hè - Thu trong khi tỷ lệ lòng đỏ lại có xu hướng ngược lại (P<0,05). ABSTRACT This study was carried out to determine the effect of seasons on reproductive performance of egg-quails in Thua Thien Hue province. A total number of 108 6-months female quails laying in 2 different group seasons when quail starting laying was chosen to collect the data: Winter - Spring season (from December 2018 to May 2019) and Summer - Autumn season (from June 2019 to November 2019). The quails were fed by the complete feed of GreenFeed Vietnam Corporation. The results showed that quails laying in Winter - Spring season had higher egg production, laying rate and average feed conversion ratio than quails laying in Summer - Autumn season (P<0.05). Egg production, laying rate and average feed conversion ratio of quails laying in Winter - Spring and Summer - Autumn season were 20.76 and 18.25 egg/quail/month; 69.21 and 60.84% and 3.22 and 3.75 kg feed/kg egg, respectively. An average of egg weight was 10.49 - 10.74 g (P>0.05). The percentage of albumin of the quails laying in Winter - Spring season was lower than that of the quails laying in Summer - Autumn season while the percentage of yolk tended to be opposite (P <0.05).

scholarly journals Effects of perch on feed consumption and behaviour of caged laying hens

2009 ◽  
Vol 18 (3-4) ◽  
pp. 257-267 ◽  
Author(s):  
E. VALKONEN ◽  
R. RINNE ◽  
J. VALAJA
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Conversion Ratio ◽  
Light Period ◽  
Feed Conversion Ratio ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Cage Floor ◽  
Instantaneous Sampling ◽  
Advantageous Effect

This experiment studied the effects of perches in furnished cages on behaviour and feed consumption of laying hens. The study used 352 Lohmann Selected Leghorn (LSL) hens. The hens were housed at 16 weeks of age in furnished cages in groups of 8 birds. The experiment lasted for 205 days. The treatments were: perches present from 16 weeks of age (P16), perches present from 19 weeks of age (P19), and no perches present (NP). Feed consumption and egg production were measured over the pre-laying period and six 4-week laying periods. The number of hens on perch, in nest and litter box was recorded at various ages. The behaviour of 3 hens per treatment was observed using instantaneous sampling at every 5 minutes, so that the observations of each hen covered one light period (14.5 hours). The treatments had no significant effects on feed consumption after the pre-laying period. Feed conversion ratio (kg feed kg-1 eggs) was favourable in P16 in comparison to NP during the periods 2–4. During the observations after the lights-out NP birds tended to be more frequently in nests, than P16 birds. NP birds spent more time on the cage floor, were recumbent more often, and sitting more rarely in comparison to P16 birds. Based on the results of this study, perches may have advantageous effect on feed conversion ratio in furnished cages.;

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