Restricted feeding could enhance feed conversion ratio and egg quality of laying Japanese quail kept under different stocking densities

Five layer diets were formulated containing 0.5,10, 15 and 20% Anthonotha macrophylla seed meal which replaced equivalent proportion of groundnut cake. One hundred and eighty Babcock brown layers already 3 months in lay were randomized into 5 groups and each group was fed one of the experimental diets for 84 days. The hens were examined for performance using body weight. teed intake, henday egg production, egg weight and feed conversion ratio. The interior quality of Eggs were also assessed. Total feed intake ranged from 9.27 to 10.97kg, average daily feed intake, from 110.32 to 130.54 g/bird/day, hen-day egg production, from 48.88% to 79.11% and feed conversion ratio, from 1.87 to 2.15. Statistical analysis showed that total feed intake, average daily feed intake and hen - day egg production were similar across the dictary treatments up to the 15% level of inclusion, but were significantly depressed (P<0.05) at the 20% inclusion level. However, diet had no significant effect on final body weight and average egg weight and feed conversion ration (P>0.05). Similarly results on egg quality showed no significant effect (P>0.05) on albumen index, yolk index, yolk colour, Haugh unit and shell thickness. Based on these results, it was concluded that Anthonotha macrophylla seed meal can be incorporated into layer diets up to 15%, inclusion level without incurring a depression in performance Layer diets containing this meal ingredient had no deleterious effect on egg quality.

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Utilization of guava extract as additive antioxidant in diets of Japanese quail breeders (Coturnix japonica)

Revista Brasileira de Saúde e Produção Animal ◽

10.1590/s1519-99402121122020 ◽

2020 ◽

Vol 21 ◽

Author(s):

Hyara Paula Fleuri XAVIER ◽

Nadja Susana Mogyca LEANDRO ◽

Edemilson Cardoso CONCEIÇÃO Da ◽

Alessandra Gimenez MASCARENHAS ◽

Emmanuel ARNHOLD ◽

...

Keyword(s):

Japanese Quail ◽

Feed Intake ◽

Egg Production ◽

Egg Quality ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Egg Mass ◽

Feed Conversion ◽

Antioxidant Additive ◽

Weight Variation

SUMMARY The aim of this study was to evaluate the guava extract as an antioxidant additive in diets of Japanese quail breeders on the performance and egg’s quality. The experiment was conducted at University Federal of Goias. A total of 384 Japanese quail breeders were used, distributed in four treatments, with six replicates, with a total of 12 females and four males in each replicate. The treatments were performed with four levels of guava extract in the diets (0.0%, 0.3%, 0.6% and 0.9%). The guava extract contained the ellagic acid, considered the guava antioxidant active principle. The diets were isonutritive. Feed and water were offered ad libitum. The experimental period was 84 days. Egg production, feed intake, feed conversion ratio, egg mass, body weight variation and egg quality were evaluated. The results were submitted to analysis of variance and regression analysis. The adopted probability was 5%. Egg production, feed intake, feed conversion ratio and egg mass were not influenced by the use of guava extract. The yolk and albumen height, the Haugh Unit and the yolk and albumen index decreased linearly as the levels of guava extract in the diet increased. The diameter of the albumen was higher with the use of 0.48% of guava extract in the diet. The yolk color was affected by the guava extract, presenting a darker color with 0.50% of guava extract in the diet. It was concluded that the guava extract used as an antioxidant additive does not improve the performance and egg quality of Japanese quails.

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Effect of sorghum and methionine supplementation in productive performance and the quality of hatching eggs of two quail strains

The Iraqi Journal of Veterinary Medicine ◽

10.30539/iraqijvm.v38i2.218 ◽

2014 ◽

Vol 38 (2) ◽

pp. 22-27

Author(s):

D. Th. Younis

Keyword(s):

Egg Production ◽

Egg Quality ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Feed Consumption ◽

Productive Performance ◽

Feed Conversion ◽

Shell Weight ◽

Yellow Corn

The aim of the present study was to identify the effect of corn replacement by sorghum and supplementation of methionine during growing and laying periods in productive performance and egg quality of two strains of quail (brown and black). Four hundred and eighty quails (240 of each strain) were used in this study. Birds reared on floor letter in semi opened house distributed into four treatments each with three replicates (20 birds in replicate). Experimental treatments were as follows: T1: fed on yellow corn ration (Control), T2: fed on ration in which 50% of corn replaced by sorghum , T3: fed on ration in which 50% of corn replaced by sorghum and supplemented with 0.2% methionine and T4: fed on ration in which 50% of corn replaced by sorghum and supplemented with 0.4% methionine . Statistical analysis of data showed no significant differences (P≤0.05) between treatments and strains in live body weight, average weekly weight gain, feed consumption, feed conversion ratio dressing percentage and mortality rate. After sexual maturity age no differences were observed between the treatments and strains in egg production HD%, egg weight, feed conversion ratio, egg shape index, shell weight, shell thickness, albumin height, yolk dimension, yolk height, blood glucose, blood triglyceride, blood total protein, blood hemoglobin, ALT and AST enzymes concentration in serum through out of the experimental period which was lasted for 99 days. In conclusion, the results revealed the possibility of 50% sorghum replacement instead of yellow corn without any passive effects on productive performance which reduce the productive costs.

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

Animal Production Science ◽

10.1071/an19671 ◽

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.

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Response to selection for feed conversion ratio in Japanese quail

Poultry Science ◽

10.3382/ps.2010-00744 ◽

2010 ◽

Vol 89 (8) ◽

pp. 1590-1598 ◽

Cited By ~ 19

Author(s):

S. Varkoohi ◽

M. Moradi Shahr Babak ◽

A. Pakdel ◽

A. Nejati Javaremi ◽

M. Zaghari ◽

...

Keyword(s):

Japanese Quail ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Response To Selection ◽

Feed Conversion ◽

Selection For

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Decorticated safflower meal as a protein supplement in diets fed either restrictively or ad libitum to barrow and gilt pigs over 45 kg liveweight

Australian Journal of Experimental Agriculture ◽

10.1071/ea9740012 ◽

1974 ◽

Vol 14 (66) ◽

pp. 12 ◽

Cited By ~ 6

Author(s):

KC Williams ◽

PK O'Rourke

Keyword(s):

Soybean Meal ◽

Average Daily Gain ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Feed Conversion ◽

Large White ◽

Protein Supplements ◽

Ad Libitum ◽

Daily Gain

Twenty barrow and twenty gilt Berkshire x Large White pigs were fed barley based diets containing protein supplements of either 13 per cent soybean meal, 9 per cent fishmeal, 14.5 per cent safflower meal plus 0.2 per cent I-lysine mono hydrochloride plus 0.1 per cent methionine or 14.5 per cent safflower meal plus 4.5 per cent fishmeal from 46.4 to 87.0 kg liveweight. All diets were fed individually at a restricted feeding scale. The safflower meal diets were also fed ad libitum. Barrows and gilts fed ad libitum recorded a 65 and 27 per cent improvement respectively in average daily gain and had slightly fatter carcases than those fed comparable diets restrictively. Feed conversion ratio was not significantly affected by level of feeding. Growth and carcase attributes of pigs fed diets restrictively were similar apart from the feed conversion ratio of pigs fed the amino acid supplemented safflower meal diet, which was inferior (P < 0.05) to those fed the soybean meal supplemented diets. Barrows grew faster and produced fatter carcases than gilts, A significant sex x diet interaction occurred from which it was concluded that gilts, but not barrows, could be fed ad libitum without detriment to the quality of the carcase.

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Erratum to “Response to selection for feed conversion ratio in Japanese quail” (Poult. Sci. 89:1590–1598)

Poultry Science ◽

10.3382/ps.2011-90-1-0295 ◽

2011 ◽

Vol 90 (1) ◽

pp. 295 ◽

Cited By ~ 1

Author(s):

S. Varkoohi ◽

M. Moradi Shahr Babak ◽

A. Pakdel ◽

A. Nejati Javaremi ◽

M. Zaghari ◽

...

Keyword(s):

Japanese Quail ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Response To Selection ◽

Feed Conversion ◽

Selection For

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Enzyme Treatment Improves The Utilization Of Lupin-Based Diets By Japanese Quail (Coturnix Japonica)

The International Journal of Tropical Veterinary and Biomedical Research ◽

10.21157/ijtvbr.v4i1.13804 ◽

2019 ◽

Vol 4 (1) ◽

pp. 1-8

Author(s):

Mahmoud Khalil ◽

Irek A. Malecki ◽

Mahmoud El-Attrouny ◽

Graeme B. Martin

Keyword(s):

Japanese Quail ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Metabolizable Energy ◽

Enzyme Treatment ◽

Feed Conversion ◽

Negative Effects ◽

Dry Matter Digestibility ◽

Apparent Metabolizable Energy ◽

Poultry Feeding

In poultry, feeding diets including high concentrations of non-starch polysaccharides limits growth rate and feed conversion ratio, and causes problems in health and welfare because of the production of wet droppings. This problem is becoming more important as pressure builds to reduce costs by using alternative sources of dietary protein, such as lupin grain, rather than fish- or soybean-meal. We therefore tested whether enzymes that break down non-starch polysaccharides can overcome the problems with a lupin-based diet fed to Japanese quail. Chicks (18 days old) were allocated among 8 treatments, each replicated 3 times, with 12 chicks per replicate (ie, 36 birds per treatment). Chicks were fed diets formulated to contain 24% crude protein and 12 MJ/kg apparent metabolisable energy (AME). The diets included 10% or 20% lupin meal and, for each level of lupin, they were formulated in one of four ways: 1) no enzyme; 2) pectinase (1.4 U/g polygalacturonase and 0.2 U/g pectinesterase); 3) xylanase (1,4 endo-xylanase; 0.38 U/g); 4) combination of the above pectinase and xylanase treatments. The results indicated that, from age 28 days of age, both lupin content and enzyme treatment significantly (P < 0.05) affected chick performance. Compared with the no-enzyme control, enzyme treatments improved growth at 35 days by 45-50% (P < 0.05) and feed conversion ratio by 20-30% (P < 0.05) for both levels of lupin content. In addition, dry matter digestibility and apparent metabolizable energy were significantly improved by the combined enzyme treatment for both levels of lupin inclusion. We conclude that pectinase and xylanase can overcome the negative effects of the non-starch polysaccharides in lupin meal, improving the growth of quail chicks fed lupin-based diets, and that the enzymes work best when combined.

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Evaluating the Effect of Moringa (Moringa oleifera) Leaf Supplemented Feed on the Growth and Carcass Quality of Broilers in Calabar

Asian Journal of Advanced Research and Reports ◽

10.9734/ajarr/2019/v7i130162 ◽

2019 ◽

pp. 1-7

Author(s):

N. E. Edu ◽

P. B. Ekpo ◽

A. J. Umoyen ◽

T. L. Thomas ◽

M. O. Akpan ◽

...

Keyword(s):

Moringa Oleifera ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Carcass Quality ◽

Broiler Chicks ◽

Feed Conversion ◽

Treatment Groups ◽

Group B ◽

Group D

Background: Rapid population growth of human and livestock create increasing demands for food, nutrition security in developing countries and therefore alternative feed resources must be identified and evaluated. This study was carried out to investigate the effects of Moringa oleifera leaf meal (MOLM) on supplemented feed on the growth and carcass quality of broilers in Calabar. Methodology: Fresh leaves of Moringa oleifera were bought and collected from Calabar, Nigeria. The leaves were dried for four days and milled. A total of 40 broiler chicks that 48 day-olds, unsexed (rose 308) were sourced from a reputable poultry farm in Calabar. The broiler chicks were randomly allotted to four treatment groups (A, B, C and D). 0%, 5%, 10% and 15% of MOLM were incorporated into the broiler feed which constituted the four treatment groups. Each group was replicated ten times at 10 birds per replicate. The following parameters were taken including feed intake, weight gain, feed conversion ratio, mortality rate and carcass quality. Data were subjected to statistical analysis. Results: The diet supplemented with 5% of MOLM showed significantly high body weight and followed by 10% of MOLM. Feed intake values were significantly (p<0.05) different across the treatment groups. The weight gain (WG) was statistically similar for group B and C but significantly (p<0.05) different in group D; with birds fed with 10% MOLM based diet having the highest WG. The feed conversion ratio of the birds were not significantly (p>0.05) different in group B and C, but differed significantly (P<0.05) in group D when compared with the control in group A. Carcass characteristics showed higher values of dressing percentage in birds fed supplemented with 10% MOLM (group C). The levels of MOLM were not significantly different in terms of liver weight, heart weight, kidney weight and abdominal fat. Conclusion: Overall, the best significant improvement in the response indices were obtained in birds fed 10% MOLM, while there was a reduced performance of birds feed with 15% MOLM.

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Effects of differences in the initial body weight of groups on laying performance and egg quality parameters of Lohmann laying hens

Czech Journal of Animal Science ◽

10.17221/341-cjas ◽

2008 ◽

Vol 53 (No. 11) ◽

pp. 466-471 ◽

Cited By ~ 7

Author(s):

E. Lacin ◽

A. Yildiz ◽

N. Esenbuga ◽

M. Macit

Keyword(s):

Body Weight ◽

Egg Production ◽

Egg Quality ◽

Live Weight ◽

Experimental Period ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Feed Consumption ◽

Feed Conversion ◽

Weight Groups

This study was carried out to investigate the effect of different body weight groups (light (L) = 1 400–1 500; medium (M) = 1 500–1 600 and heavy (H) = 1 600 < g) on performance and egg quality traits of Lohmann hens, 24 weeks of age, in different laying periods. A total of 288 Lohmann White layers were allocated randomly to three groups with respect to live weight, each consisting of 24 replicated cages as subgroups, comprising four hens. The study period lasting for 60 weeks was investigated as four different age periods (first period = 24–40 weeks; second period = 40–54 weeks; third period = 54–68 weeks; fourth period = 68–84 weeks). Differences in the initial live weight at the beginning of experiment among the groups continued to the end of experimental period. Considering the egg production, differences among the groups were not significant (<I>P</I> > 0.05) during the experimental period. Egg weight was determined to be lower in the group with low body weight (64.58 g) than in medium (64.97 g) and heavy hen groups (66.30 g). Differences in feed intake and feed conversion ratio among the groups were found significant, and the mean values were 123.93, 127.48 and 130.67 for feed consumption (g/day); 2.23, 2.28 and 2.27 for feed conversion ratio. Except for the feed conversion ratio, the effect of weight groups by age period interaction on performance parameters was significant (<I>P</I> < 0.01). The effects of body weight on shell strength, shell thickness and yolk index were not significant during the experimental period. However, different body weight groups significantly affected shape index, yolk colour, albumen index and Haugh unit parameters. Shell strength, yolk colour and yolk index values were affected by weight groups by age period interaction. In conclusion, Lohmann White hens in the light group in a uniform flock had higher egg production and lower feed conversion ratio values than those of other weight groups.

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