Effects of rearing systems on laying performance, egg quality, and serum biochemistry of Xianju chickens in summer

Dong, Xin; Yin, Zhaozheng; Z, Y.; Cao, Haiyue; Dong, Da

doi:10.3382/ps/pex155

Cited by 24 publications

(18 citation statements)

References 20 publications

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“…Küçükyılmaz et al (2012) reported no effect of the housing system on egg yolk cholesterol content. Similarly, Dong et al (2017) did not demonstrate differences in cholesterol content in the yolk of eggs from both free-range with or without outdoor access. In our study, the differences in egg yolk cholesterol levels between the studied breeds were not significant (Table 4.).…”

Section: Resultsmentioning

confidence: 73%

Effect of Alternative Housing System and Hen Genotype on Egg Quality Characteristics

2018

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The aim of the study was to determine the effect of type of alternative housing system and layer genotype on the quality of table eggs. The investigated eggs came from native Greenleg Partridge hens (Z-11) and Rhode Island Red hens (R-11) covered by the gene-pool protection program, as well as from Hy-line Brown commercial hens from litter barn (LS), free range (FR), and organic systems (OS). Eggs for the study were collected from the hens at 56 wk of age. Egg quality assessment was based on the following values egg traits: weight, shape index, yolk, albumen, and shell percentage in the whole egg; eggshell traits: color intensity, weight, thickness, density, breaking strength, physical features of egg content: albumen height, value of Haugh units, yolk color; presence of meat/ blood spots and cholesterol, higher fatty acids, vitamin A and E in egg yolks. In the rearing systems under study, eggs with the highest weight were laid by commercial hens, and the type of alternative rearing system had no significant effect on this trait. Shell colour intensity depends on the breed of hen, whereas the rearing system has no significant effect on this trait. Hen genotype and housing system had an effect on egg shell weight, thickness, and density. The housing system influences the content of MUFA, PUFA, PUFAn-6 and PUFAn-3 as well as PUFA 6/3 in egg yolks. No effect of the housing system on egg yolk cholesterol content was observed.

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Section: Resultsmentioning

confidence: 73%

Effect of Alternative Housing System and Hen Genotype on Egg Quality Characteristics

2018

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“…This reduction may be attributed to the increased physical activity in ducks allowed to access a yard and a swimming pool. Similarly, Dong et al [41] reported that a reduction in serum triacylglycerol and cholesterol of Xianju chickens was due to yard rearing.…”

Section: Resultsmentioning

confidence: 92%

The Influences of Various Housing Systems on Growth, Carcass Traits, Meat Quality, Immunity and Oxidative Stress of Meat-Type Ducks

Ghanima

El-Edel

Ashour

et al. 2020

Animals

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The present study aimed to investigate the effect of different housing systems on Pekin ducks. A total of 300-day old Pekin ducklings were randomly divided into four experimental groups; the first housed in a closed house (CH), the second in closed house with open yard (HY), the third group in closed house with swimming pool (CHSP) and the fourth in a closed house with swimming pool and yard (HYSP). Results indicated that the HYSP and CHSP produced higher body weight comparing to the other groups. However, the HYSP gave the highest body weight followed by CHSP then HY and CH. The same trend was observed regarding weight gain and feed-conversion ratio (FCR). Moreover, HYSP, HY and CHSP showed higher dressing percentage, breast muscles and thighs and lower abdominal fat than the CH group. Serum protein was significantly higher in HYSP and HY than that of the closed house. While, lipids, cholesterol and triacylglycerol were significantly lower in groups housed in HY than that of CH. Meat cholesterol and triacylglycerol reduced in groups reared in HY. Housing ducklings in yards and using swimming pools significantly improved the general immunity (phagocytic index and activity and differential leucocytes count), and also improved the oxidative stress parameters. In conclusion, results confirmed that housing ducks in a house supplied with yard and swimming pool can improve its productivity, carcass traits, meat quality, blood lipid profile, immunity and antioxidative status.

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“…Guni et al (2021a) which also showed lower performance of onfarm than on-station management in most egg production traits. Similarly, Champati et al(2020) reported heavier eggs for intensively reared chickens than for semi-intensive whileDong et al (2017) andKucukyılmaz et al (2012) also observed variation in egg weight for different rearing systems. In contrast to the present ndings,Patel et al (2018) andSokołowicz et al (2018) did not nd signi cant differences in egg weight between deep litter and other rearing systems.…”

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confidence: 95%

Evaluation of Carcass Characteristics and Egg Quality Traits of Kuroiler and Sasso Chickens Reared Under On-Station and On-Farm Management Conditions in Tanzania

Guni¹,

Mbaga²,

Katule³

et al. 2021

Preprint

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Two studies were conducted to evaluate the carcass characteristics and egg quality traits of Sasso and Kuroiler chickens under on-farm and on-station management conditions. Carcass characteristics were evaluated under on-station only while egg quality was evaluated under both management conditions. A total of 240 hens and 240 cocks were raised under on-station condition and evaluated for egg and carcass quality respectively. Meanwhile, 320 hens were raised under on-farm condition and evaluated for egg quality only. At the end of each of the 16th and 20th weeks of age, a sample of 10 cocks per breed was randomly selected and sacrificed for carcass traits evaluation. To study egg quality, a total of 666 fresh eggs (246 eggs from on-farm and 420 eggs from on-station) were used to evaluate the external and internal egg quality traits. The recorded data were analyzed using the General Linear Models (GLM) procedure of SAS software ( SAS 2009). The results show that except for shell, yolk and albumen ratios, the mean values of other egg quality traits studied were higher for on-station than on-farm. Kuroiler chickens had higher values for egg weight, egg length, yolk weight, albumen height and Haugh unit than Sasso chickens. Live weight, carcass weight and carcass parts weight were found to be higher for Sasso than for Kuroiler at both ages of slaughter. It is concluded that there are variations between managements and breeds on egg quality traits. Carcass characteristics are affected by both breed and slaughter age.

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Effects of rearing systems on laying performance, egg quality, and serum biochemistry of Xianju chickens in summer

Cited by 24 publications

References 20 publications

Effect of Alternative Housing System and Hen Genotype on Egg Quality Characteristics

Effect of Alternative Housing System and Hen Genotype on Egg Quality Characteristics

The Influences of Various Housing Systems on Growth, Carcass Traits, Meat Quality, Immunity and Oxidative Stress of Meat-Type Ducks

Evaluation of Carcass Characteristics and Egg Quality Traits of Kuroiler and Sasso Chickens Reared Under On-Station and On-Farm Management Conditions in Tanzania

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