A Case of Bronze Turkey Twins Developing from Hatching

Damaziak, Krzysztof; Michalczuk, Monika; Zdanowska‐Sąsiadek, Żaneta; Niemiec, J.

doi:10.1111/rda.12477

Cited by 6 publications

(2 citation statements)

References 10 publications

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“…For example, embryos in DY2F eggs of pigeons, Columba livia , died just before hatching [ 16 ]. Rare cases of development of twin embryos have also been observed in the ostrich, Struthio camelus [ 17 ], turkey, Meleagris gallopavo domesticus [ 18 ], and emu, Dromaius novaehollandiae [ 19 ], but all embryos in the eggs died at the late stage of development. In chickens, attempts to obtain two chicks from one egg (DY2F) have rarely been successful, and only in the case of assisted hatching [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Development of Chicken Embryos in Double-Yolk Eggs: Fertility, Hatchability, Embryo Malposition and Time of Embryonic Mortality

Banaszewska,

Kasianiuk,

Biesiada-Drzazga

et al. 2023

Animals

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Fertility rate and hatchability rate are low for all types of double-yolk (DY) eggs in comparison to single-yolk eggs (SY), but these parameters also depend on the number of developing embryos in the egg. The hatchability rate of double-yolk eggs containing two developing embryos (DY2F) is vastly lower than in the case of double-yolk eggs containing only one embryo (DY1F). The aim of the study was to determine the differences between egg fertility rate, hatchability rate, time of embryonic mortality, and embryo malposition during incubation in three types of eggs from Hy-Line Brown hens: SY, DY1F and DY2F. In addition, the quality of the hatched chicks was assessed using the Pasgar©score. Following a 21-day incubation, chicks were obtained from DY1F and SY eggs. No chicks were obtained from DY2F eggs, although the embryos in these eggs developed up to the late stage of incubation. Early (≤7 d of incubation), middle (8–14 d), and late (≥15 d) embryonic mortality was significantly higher in DY eggs than in SY eggs. The embryonic mortality rate during early incubation was the same for DY1F and DY2F eggs, but middle and late embryonic mortality were significantly higher for DY2F eggs. Based on evaluation of embryo position according to Landauer, only three types of malposition that could potentially lead to embryonic death were noted. There were fewer malpositioned embryos in double-yolk eggs containing one embryo. Quality assessment of chicks (Pasgar©score) showed no differences between chicks hatched from eggs containing one yolk and those hatched from double-yolk eggs with one developing embryo, but chicks from double-yolk eggs were significantly heavier. The results of the research will contribute to a better understanding of the development and mortality of embryos in double-yolk eggs.

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Section: Introductionmentioning

confidence: 99%

Development of Chicken Embryos in Double-Yolk Eggs: Fertility, Hatchability, Embryo Malposition and Time of Embryonic Mortality

Banaszewska,

Kasianiuk,

Biesiada-Drzazga

et al. 2023

Animals

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“…Because of the comparatively low fertility rate, DY eggs are deemed a loss to commercial hatching compared to single yolk (SY) eggs. This is due to the smaller yolk and the perceptibly reduced hatching rate as a result of less space for movement [6][7][8]. Contaminating other hatching eggs by bacterial or fungal infection as well as lost space and power in the incubator are risks of these eggs.…”

Section: Introductionmentioning

confidence: 99%

Double yolk eggs detection using fuzzy logic

Intarakumthornchai

Kesvarakul

2020

PLoS ONE

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Chicken egg products increased by 60% worldwide resulting in the farmers or traders egg industry. The double yolk (DY) eggs are priced higher than single yolk (SY) eggs around 35% at the same size. Although, separating DY from SY will increase more revenue but it has to be replaced at the higher cost from skilled labor for sorting. Normally, the separation of double yolk eggs required the expertise person by weigh and shape of egg but it is still high error. The purpose of this research is to detect double-yolked (DY) chicken eggs with weight and ratio of the egg’s size using fuzzy logic and developing a low cost prototype to reduce the cost of separation. The K-means clustering is used for separating DY and SY, firstly. However, the error from this technique is still high as 15.05% because of its hard clustering. Therefore, the intersection zone scattering from using the weight and ratio of the egg’s size to input of DY and SY is taken into consider with fuzzy logic algorithm, to improve the error. The results of errors from fuzzy logic are depended with input membership functions (MF). This research selects triangular MF of weight as low = 65 g, medium = 75 g and high = 85 g, while ratio of the egg is triangular MF as low = 1.30, medium = 1.40 and high = 1.50. This algorithm is not provide the minimum total error but it gives the low error to detect a double yolk while the real egg is SY as 1.43% of total eggs. This algorithm is applied to develop a double yolk egg detection prototype with Mbed platform by a load cell and OpenMV CAM, to measure the weight and ratio of the egg respectively.

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