“…Karabulut (2021a) measured Linda geese's egg length and width values as 5.32-6.13 cm and 7.89-9.73 cm, respectively. Chang et al (2016) reported the same variables as 56.9-57.3 mm and 86.6-87.7 mm in white roman geese, respectively. When compared with these values, egg width was determined as 52.34 mm and egg length as 76.80 mm in the present study.…”
In this study, the external quality characteristics of eggs belonging to Linda accidents, a poultry species, were investigated with a data mining approach. The 288 Linda goose eggs used in the study were 36 weeks old; Their width was 52.34 mm, egg length was 76.8 mm, egg weight was 120.43 g, and shape index value was 68.26. Eggs were clustered according to shape index and weight measurements using the K-means clustering algorithm, a data mining approach. Statistically significant differences were found between the clusters in width, height, shape index, and weight (p<0.05). The findings of our study showed that eggs with a low index had high- weight; eggs with a high index were low-weight eggs. According to the results of this study, it was concluded that the shape index value might be related to egg weight. More detailed inferences can be made using data mining algorithms for different poultry species.
“…Karabulut (2021a) measured Linda geese's egg length and width values as 5.32-6.13 cm and 7.89-9.73 cm, respectively. Chang et al (2016) reported the same variables as 56.9-57.3 mm and 86.6-87.7 mm in white roman geese, respectively. When compared with these values, egg width was determined as 52.34 mm and egg length as 76.80 mm in the present study.…”
In this study, the external quality characteristics of eggs belonging to Linda accidents, a poultry species, were investigated with a data mining approach. The 288 Linda goose eggs used in the study were 36 weeks old; Their width was 52.34 mm, egg length was 76.8 mm, egg weight was 120.43 g, and shape index value was 68.26. Eggs were clustered according to shape index and weight measurements using the K-means clustering algorithm, a data mining approach. Statistically significant differences were found between the clusters in width, height, shape index, and weight (p<0.05). The findings of our study showed that eggs with a low index had high- weight; eggs with a high index were low-weight eggs. According to the results of this study, it was concluded that the shape index value might be related to egg weight. More detailed inferences can be made using data mining algorithms for different poultry species.
“…However, Hungarian geese might not have fully adapted to the longer light regime and thus exhibit a different laying rhythm from the Chinese geese. Another study also noted that the change of photoperiod will affect the egg laying rhythm of geese, resulting in the diversity of egg laying rhythm ( Sheng et al, 2002 ; Chang et al, 2016 ). Figure 1 Comparison of laying behavior and clutch traits among Zhedong white geese, Sichuan white geese and Hungarian geese.…”
Egg laying is an important reproductive behavior of female poultry. Here, we investigated the laying behavior and clutch traits of different goose breeds, specifically, Zhedong white geese (
Anser cygnoides
), Sichuan white geese (
Anser cygnoides
) and Hungarian geese (
Anser anser
). A total of 108 geese in their first laying year were selected. Their laying rhythm was monitored daily by video cameras during the egg-laying period. The results showed that the prenatal behavior included nest hunting, nest site selection and nesting, as well as laying behavior included prenatal crouching, anal contraction until oviposition and postnatal resting. There were some differences in laying times among the 3 breeds. Approximately 70% of the eggs were laid between 03:00 and 12:00 in Zhedong white geese and Sichuan white geese, while the Hungarian geese laid throughout the day. Also, the clutch length and the oviposition interval differed among these 3 breeds. Their average clutch lengths were approximately 14.07, 12.14 and 19.15 days in Zhedong white geese, Sichuan white geese, and Hungarian geese, respectively. While their oviposition intervals showed 2 peaks (39 and 47 h), 3 peaks (41, 50 and 53 h), and 1 peak (46 h). Moreover, there were significant correlation between egg yield and clutch length in Zhedong white geese (
r
= 0.951), Sichuan white geese (
r
= 0.987) and Hungarian geese (
r
= 0.991), respectively. Taken together, the difference in laying behavior among the breeds was mainly reflected in laying time and oviposition intervals, Zhedong white geese and Sichuan white geese have egg laying time preference and short oviposition intervals, which was helpful not only to understand egg-laying process, but also to manage egg-laying geese scientifically and improve egg production.
“…Indeed, the use of natural daylight is a good practice, but creating an environment where light management is completely under control proves to be interesting and advantageous since light intensity in semi-open buildings might be difficult to master. On the other hand, light intensity in a poultry building for laying hens affects significantly the laying rate and the birds feed conversion ratio [15,16]; but beside light intensity effect might be added that of light source that mostly affects laying rate [17][18][19][20].…”
A total of 357 Isa Brown layers were used in this study in order to assess the effects of lighting length on laying performance and on some egg characteristics in a family farm of Antananarivo suburb, Madagascar. The birds, in their egg producing phase (37 week old), were distributed at random into one of 3 lots, each allocated to one of 3 lighting treatments: 12 hour natural daylight, used as control; 14 hour lighting length (natural daylight + artificial light) and 16 hour lighting length (natural + artificial light). The artificial lighting was supplied by 60 Watt incandescent lamps placed within the treated lots. Eggs, numbering 840, were taken at random in order to assess their physical and chemical characteristics. Thus, lighting length affects significantly layer weight and production performance (p<0.05). Layer weights tend to be lower with increasing lighting, but egg production increase with lighting length. Lighting length has no effect neither on egg weight nor on egg volume, but it affects significantly the shell index (p=0.0018) and egg internal qualities (p<0.05), except for yolk pH.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
