Developmental patterns of O2 consumption, heart rate and O2 pulse in unturned eggs

Pearson, James T.; Haque, M. Shamsul; Hou, Pei-Chi; Tazawa, Hiroshi

doi:10.1016/0034-5687(95)00061-5

Cited by 31 publications

(11 citation statements)

References 9 publications

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“…Metabolic heat production before ED5 and after ED18 was not used because before ED5, MHP is very low and difficult to determine accurately, and after ED18, internal pipping and lung ventilation starts, which results in a huge increase and variation in MHP. Studies differed in MHP up to 17% at ED18 throughout the years: 143 mW/egg ( Tazawa, 1973 ); 137 mW/egg ( Tazawa et al., 1988 ); 145 mW/egg ( Tazawa et al., 1992 ); 128 mW/egg ( Pearson et al., 1996 ); 141 mW/egg ( Dzialowski et al., 2002 ); 151 mW/egg ( Black and Burggren, 2004 ); 140 mW/egg ( Janke et al., 2004 ); 144 mW/egg ( O'Dea et al., 2004 ); 137 mW/egg ( Lourens et al., 2006b ); 125 mW/egg ( Sato et al., 2006 ); 140 mW/egg ( Druyan, 2010 ); 148 mW/egg ( Nangsuay et al., 2013 ). As these studies used eggs from different flock ages and different egg weights were included, it might be better to express the MHP per gram of egg to facilitate direct comparison between studies.…”

Section: Factors Affecting Metabolic Rate and Embryonic Heat Productimentioning

confidence: 99%

A review on yolk sac utilization in poultry

et al. 2020

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During incubation, embryonic growth and development are dependent on nutrients deposited in the egg. The content of the yolk can be transferred to the embryo in 2 ways: directly into the intestine via the yolk stalk or through the highly vascularized yolk sac membrane. It has been suggested that, as a result of genetic selection and improved management, the increase in posthatch growth rate and concurrently the increase in metabolic rate of broiler chickens during the last 50 yr has also increased embryonic metabolism. A higher metabolic rate during incubation would imply a lower residual yolk weight and possibly lower energy reserve for the hatchling. This might affect posthatch development and performance. This review examined scientific publications published between 1930 and 2018 to compare residual yolk weight at hatch, metabolic heat production, and yolk utilization throughout incubation. This review aimed to investigate 1) whether or not residual yolk weight and composition has been changed during the 88-yr period considered and 2) which abiotic and biotic factors affect yolk utilization in poultry during incubation and the early posthatch period. It can be concluded that 1) residual yolk weight and the total solid amount of the residual yolk at hatch seem to be decreased in the recent decades. It cannot be concluded whether the (lack of) differences between old and modern strains are due to genetic selection, changed management and incubation conditions, or moment of sampling (immediately after hatch or at pulling). It is remarkable that with the genetic progress and improved management and incubation conditions over the last 88 yr, effects on yolk utilization efficiency and embryonic metabolic heat production are limited; 2) factors specially affecting residual yolk weight at hatch include egg size and incubation temperature, whereas breeder age has more influence on nutrient composition of the residual yolk.

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Section: Factors Affecting Metabolic Rate and Embryonic Heat Productimentioning

confidence: 99%

A review on yolk sac utilization in poultry

et al. 2020

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“…Preincubation factors such as egg storage duration, breeder age, and breeder line influence embryonic development and also 1-d-old chick characteristics (Mirosh and Becker, 1974;Deeming, 1996;Christensen et al, 2001;Peebles et al, 2001;Tona et al, 2003). Breeder age also influences the weight of the egg, the weight of the hatchling (Crittenden and Bohren, 1961;Smith and Bohren, 1975;Bohren, 1978;Pearson et al, 1996;Tona et al, 2004), the length of the chick (Hill, 2001), and the incidence of subnormal quality (Tona et al, 2001;Boerjan, 2002;Tona et al, 2004).…”

Section: Introductionmentioning

confidence: 96%

Critical Assessment of Chick Quality Measurements as an Indicator of Posthatch Performance

et al. 2008

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For hatcheries, not only is it important to have a high level of hatchability, but the quality of the chicks provided also has to be good, because broiler farmers are looking for chicks with a high growth potential, resulting in a greater slaughter yield at the end of the rearing period. However, chick quality has proven to be a difficult and subjective matter to define. Therefore, the aim of this study was to investigate the predictive value of different chick quality measurements for BW at slaughter age. Body weight, chick length, shank length, and toe length measurements as well as Tona score determination were performed on 1-d-old chicks and were linked to posthatch performance parameters. Different breeder lines (Cobb and Ross) and breeder ages (39, 42, and 53 wk of age) were used to investigate line and age effects. In addition, variability between people and repeatability in time of these quality measurements were determined. Body weight at 7 d of age appeared to be the best predictor of BW at slaughter age among all the quality measurements performed. Body weight at 1 d of age had the second greatest predictive value, closely followed by the ratio between BW at 1 d of age and chick length squared. Chick length and shank length both had low to no predictive value whatsoever for posthatch performance. The lack of significant correlations between the Tona score and posthatch performance could be explained by the absence of day-old chicks with anomalies (and thus a suboptimal Tona score) because a distinction had already been made, as is done in practice, between top-grade and lower grade chicks.

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“…head in the small end of the egg), and iii) prevent the embryo from adhering to the inner shell membrane Ferguson, 1991, Deeming, 2000;Brake, 2004, 2006b;Eycleshymer, 1907;New, 1957;Tullett and Deeming, 1987). Accordingly, a lack or decrease of egg-turning can retard or prevent albumen absorption and gas exchanges resulting in an abnormal chick development with lower growth rate, a decrease in oxygen consumption, and overall, leading to delayed incubation or reduced hatching success (Deeming and Ferguson, 1991, Deeming, 2000, Deeming, 2002Elibol and Brake, 2006a;Funk and Forward, 1953;New, 1957;Pearson et al, 1996;Robertson, 1961;Tazawa, 1980;Tona et al, 2005b;Van Schalkwyk et al, 2000;Wilson et al, 2003;Yoshizaki and Saito, 2002). In birds, initiation and maintenance of parental care behaviors are orchestrated by a cocktail of different hormones acting synergistically and it is believed that the pituitary hormone prolactin plays an important role, together with glucocorticoids, in the allocation process between incubation effort and the need to collect enough nutrients for self-maintenance (Angelier et al, 2016;Buntin, 1996;Sockman et al, 2006;Thierry et al, 2013;Vleck, 2002;Vleck and Vleck, 2011).…”

Section: Introductionmentioning

confidence: 99%

Contaminants, prolactin and parental care in an Arctic seabird: Contrasted associations of perfluoroalkyl substances and organochlorine compounds with egg-turning behavior

Blévin

Shaffer

Bustamante

et al. 2020

General and Comparative Endocrinology

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contrasting associations between OCs and PFASs, since polychlorinated biphenyls (PCBs) were negatively associated with angular change in females, contrary to linear perfluorooctanesulfonate (PFOSlin) and perfluoroalkyl carboxylic acids (PFCAs) which were positively related to egg-turning frequency and angular change in both sexes. Additionally, PFASs concentrations were positively related to prolactin levels in female kittiwake. The possible stimulation of prolactin secretion by PFASs could therefore make adult kittiwakes to allocate more time taking care of their eggs, and thus possibly modify the trade-off between spending enough time caring for the clutch and obtaining enough nutrients at sea.

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Developmental patterns of O2 consumption, heart rate and O2 pulse in unturned eggs

Cited by 31 publications

References 9 publications

A review on yolk sac utilization in poultry

A review on yolk sac utilization in poultry

Critical Assessment of Chick Quality Measurements as an Indicator of Posthatch Performance

Contaminants, prolactin and parental care in an Arctic seabird: Contrasted associations of perfluoroalkyl substances and organochlorine compounds with egg-turning behavior

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