Calcium particle size and feeding time influence egg shell quality in laying hens

Saki, A. A.; Rahmani, Abbas; Yousefi, Abed

doi:10.4025/actascianimsci.v41i1.42926

Cited by 10 publications

(11 citation statements)

References 22 publications

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“…As a result of the research, it was determined that 5 % pomegranate pulp increased egg production and had no effect on feed consumption, feed efficiency, and egg weight. The researchers concluded that the increase in egg production was due to the presence of punicic acid in the pomegranate seed pulp (Saki et al, 2014). The number of studies examining the effect of pomegranate seed oil on laying hens is limited.…”

Section: Resultsmentioning

confidence: 99%

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Improved biological value of eggs due to the addition of pomegranate seed oil to laying-hen diets

Bölükbaşı¹,

Dumlu

Yağanoğlu

2023

Arch. Anim. Breed.

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Abstract. In this study, the effects of the addition of pomegranate seed oil (PSO) at different levels (0, 0.5, 1, and 1.5 mL kg−1) to laying-hen rations on performance values, egg quality criteria, egg shelf life, some enzyme activity, and the fatty acid composition of yolks were investigated. In the study, 96 Lohman LSL laying hens at 64 weeks of age were used. The trial consisted of four groups, each containing 24 hens. Chickens were given feed and water ad libitum during the 8-week experiment. The first group was the control group and was fed with a basal diet, while the other groups were fed with feeds with 0.5, 1.0, and 1.5 mL kg−1 PSO added to the basal feed, respectively. The lowest feed consumption and the highest egg weight were determined in the 1 mL kg−1 PSO group. The highest feed conversion ratio, the lowest eggshell weight, and the shell-breaking strength were determined in the 0.5 mL kg−1 PSO group. It was determined that the egg yolk malondialdehyde (MDA) value in the groups to which pomegranate seed oil was added was significantly lower than the control group on the 28th day of storage. The lowest glutation (GSH) and catalase values were found in the control group, and the highest total antioxidant capacity (TAC) was found in the 1 mL kg−1 PSO group. It was determined that the addition of PSO to the diet significantly increased the rate of saturated fatty acids (SEFA), conjugated linoleic acid (CLA), and conjugated linolenic acids (CLnA) in yolk. The results showed that the addition of 1 mL kg−1 pomegranate seed oil to the feeds decreased feed consumption, increased egg weight, and positively affected the shelf life of the egg. In short, the addition of PSO had a positive effect on shelf life, and it increased punicic acid and CLA levels without reducing egg quality.

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Section: Resultsmentioning

confidence: 99%

“…Kim et al (2007) reported that the use of CLA in combination with several other fatty acids improved egg quality. Saki et al (2014) reported that adding different levels of pomegranate seed pulp to the ration had no effect on egg quality criteria.…”

Section: Resultsmentioning

confidence: 99%

Improved biological value of eggs due to the addition of pomegranate seed oil to laying-hen diets

Bölükbaşı¹,

Dumlu

Yağanoğlu

2023

Arch. Anim. Breed.

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“…The enhancement of eggshell quality described in this meta-analysis could be due to the longer retention of coarse particles in the gizzard inducing an extended diffusion of soluble Ca during the night. As eggshell formation lasts approximatively 20 h and mainly takes place during the night, coarse limestone particles reduce desynchronization between availability and requirement of Ca for the eggshell ( Saki et al, 2019 ). Additionally, laying hens receiving coarse limestone mobilize less bone Ca, and also P, than hens receiving fine limestone, in accordance with Gloux et al (2020) .…”

Section: Discussionmentioning

confidence: 99%

Effect of limestone particle size on performance, eggshell quality, bone strength, and in vitro/in vivo solubility in laying hens: a meta-analysis approach

et al. 2022

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Numerous publications over the past 5 decades have investigated the effect of limestone particle size ( LmPS ) on production performance, bone mineralization, and limestone solubilization in laying hens. Coarse limestone particles have been shown to improve eggshell quality and bone mineralization. However, there is a large variability of responses in birds to this factor, indicating the need to better quantify the effect of modulating factors related to coarse particles that could explain this variability. The objective of this meta-analysis was to study the impact of LmPS on the digestive and metabolic fate of Ca to optimize its utilization by laying hens. Fifty-eight papers published between 1971 and 2019, including 71 experiments were included in this study. Four categories of dependent variables were identified: Ca solubility, production performance, eggshell quality, and bone strength. Independent variables tested were LmPS and age. Results showed that the in vitro solubilization of limestone linearly decreased ( P < 0.001; R² = 0.91) while in vivo solubilization linearly increased with LmPS ( P < 0.001; R² = 0.91). Coarse limestone particles were retained longer in the gizzard ( P < 0.001; R² = 0.60), inducing higher solubilization by gastric juices than fine limestone. LmPS showed no effect on production performance while all eggshell quality parameters increased with LmPS ( P < 0.001; R² > 0.91): increasing specific gravity by 0.8%, eggshell thickness by 1.1%, and eggshell breaking strength by 3% when increasing from 0.15 mm to 1.5 mm. LmPS had an effect on tibia breaking strength dependently of age (Age × LmPS, P < 0.001; R² = 0.89): coarse limestone particles increased tibia breaking strength with aging compared to fine limestone particles. The current study renders it possible to quantify the effects of age and LmPS on eggshell quality and tibia breaking strength. This work showed an interaction between eggshell quality and bone strength and showed that LmPS increases bone strength in older laying hens.

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“…The best particle size of Ca supplements for layer chickens has been a controversial topic for almost a century (Saki et al, 2019). The particle size of Ca sources used in rations may have an influence on its availability to the laying hens.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, using larger particle sizes slows passage through the gastrointestinal tract (Tunç & Cufadar, 2015). This allows dietary Ca to be available for eggshell formation, with lower mobilization of bone Ca by the layer chickens (Saki et al, 2019). A number of research projects have been conducted to assess the effect of limestone, oyster shells, and egg shells as sources of Ca in layer diets and the effect of their particle sizes on egg shell quality (Saunders-Blades et al, 2009;Olgun et al, 2015;Tunç & Cufadar, 2015).…”

Section: Introductionmentioning

confidence: 99%

Influence of different bone meal particle size induced calcium specific appetite on performance and egg quality parameters of layer chickens

Gamage

Mutucumarana

Andrew³

2022

J. Natn. Sci. Foundation Sri Lanka

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The effects of free choice feeding of bone meal (BM) of different particle sizes on performance and egg quality traits of layer chickens were assessed. A total of 128 Hy-line White layers (56 wks old, BW ± SD: 1500 ± 18 g) were assigned randomly into 16 cages of 8 birds each. Four dietary treatments based on BM particle sizes (Layer Diet/Control; Layer diet + 1-2 mm BM; Layer diet + 2-3 mm BM; Layer diet + 3-4 mm BM) were choice fed for five weeks. Dry matter (DM), calcium (Ca), total phosphorus (TP), ash content, particle size distribution and in vitro solubility of BM were tested. The birds' performance and external and inernal egg quality traits were examined over a 5 wk period. The DM, Ca, TP and ash content of BM were 893, 79, 44 and 476 g/kg, respectively. The geometric mean diameter (GMD) and the geometric standard deviation (GSD) of BM were 1.7 and 1.6 mm, respectively. In vitro solubility of 1-2 mm, 2-3 mm and 3-4 mm BM particles were 56.3, 47.5 and 39.8%, respectively. Bone meal, when choice fed, increased BM intake, Ca intake, and laying percentage, and reduced damaged egg percentage. Birds fed with BM having 2-3 mm particles performed best in improving the performance and egg quality. Bone meal significantly (p < 0.05) improved the egg shell thickness with maximum thickness recorded from birds fed with BM of 2-3 mm particle size. BM with 2-3 and 3-4 mm particles improved (p < 0.05) shell ratio and unit surface shell weight. The present study concluded that feeding with BM with 2-3 mm particle size is the best to improve the overall performance and egg quality traits of layer chickens.

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Calcium particle size and feeding time influence egg shell quality in laying hens

Cited by 10 publications

References 22 publications

Improved biological value of eggs due to the addition of pomegranate seed oil to laying-hen diets

Improved biological value of eggs due to the addition of pomegranate seed oil to laying-hen diets

Effect of limestone particle size on performance, eggshell quality, bone strength, and in vitro/in vivo solubility in laying hens: a meta-analysis approach

Influence of different bone meal particle size induced calcium specific appetite on performance and egg quality parameters of layer chickens

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