Effect of constant or weekly varied eggshell temperature during incubation on broiler performance up until slaughter age

H.J. Wijnen, Inge van Roovert-Reijrink, Marieke van Eijk-Priester, C. van der Pol, R. Molenaar, H. van den Brand

Research output: Chapter in Book/Report/Conference proceedingAbstractAcademic

Abstract

After hatching in conventional systems, broiler chickens have a delay to nutrition thatcan last for 72h, depending on length of the hatch window, internal hatchery proceduresand transport duration. Previous research on early life feeding strategies has shownnegative effects on bodyweight (BW) gain after delayed nutrition (DN), compared withearly nutrition (EN). However, it is not known whether DN chickens can (partially)compensate for their lower BW between hatch and slaughter. In this study, we tested thehypothesis that DN chickens have an increased growth rate, as a result of compensatorygrowth. Data from 3 independent experiments were used. In these studies, broilerswere subjected to either EN or DN with different durations of DN (38 to 72 h) and daysto slaughter (14 to 35 d). In all experiments, DN groups had lower BW compared withEN which was sustained until slaughter. Relative differences in BW, however, decreasedfrom 114 to 176% post placement to 102 – 112 % at slaughter (35 d). Growth curves of DNand EN chickens were analysed to study whether compensatory growth could explain thedifferences in BW between EN and DN. Absolute average daily gain (aADG) was higher inEN chickens from start until slaughter. To analyse the growth curve independent of BW,relative ADG (rADG) between two ages was calculated as follows:Differences in rADG between DN and EN chickens were greater in the first 14 d (DN:63%, EN: 47%; P < 0.001), but smaller in the remaining grow-out period (14 – 28 d:DN: 18%, EN: 16%; 28 – 35 d: DN: 8%, EN: 7%; both P <0 .001). Based on these results,it seems that DN broilers compensate for their lag in BW during the first 14 d postplacement. As differences in absolute BW were still present at 35 d, the increase in rADGseems insufficient to catch up with EN broilers. EN chickens have higher aADG untilslaughter, however, rADG is lower, showing that growth rate is influenced by feedingstrategy. Previous literature describes interactions between compensatory growth andnutrient composition of diets on nitrogen and fat retention. This may give reason forfuture work to evaluate effects of early life feeding strategy on carcass traits.
Original languageEnglish
Title of host publicationThe XVth European Poultry Conference (EPC)
Subtitle of host publicationConference information and Proceedings
EditorsEstella Prukner-Radovčić, Helga Medić
Place of PublicationZagreb, Croatia
Pages498-498
Publication statusPublished - 2018
EventThe XVth European Poultry Conference - Dubrovnik, Croatia
Duration: 17 Sep 201821 Sep 2018

Conference

ConferenceThe XVth European Poultry Conference
CountryCroatia
CityDubrovnik
Period17/09/1821/09/18

Fingerprint

age at slaughter
egg shell
broiler chickens
nutrition
temperature
body weight
slaughter
chickens
feeding methods
compensatory growth
average daily gain
duration
carcass characteristics
hatcheries

Keywords

  • compensatory growth
  • delayed nutrition
  • early nutrition

Cite this

Wijnen, H. J., van Roovert-Reijrink, I., van Eijk-Priester, M., van der Pol, C., Molenaar, R., & van den Brand, H. (2018). Effect of constant or weekly varied eggshell temperature during incubation on broiler performance up until slaughter age. In E. Prukner-Radovčić, & H. Medić (Eds.), The XVth European Poultry Conference (EPC): Conference information and Proceedings (pp. 498-498). Zagreb, Croatia.
Wijnen, H.J. ; van Roovert-Reijrink, Inge ; van Eijk-Priester, Marieke ; van der Pol, C. ; Molenaar, R. ; van den Brand, H. / Effect of constant or weekly varied eggshell temperature during incubation on broiler performance up until slaughter age. The XVth European Poultry Conference (EPC): Conference information and Proceedings. editor / Estella Prukner-Radovčić ; Helga Medić. Zagreb, Croatia, 2018. pp. 498-498
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abstract = "After hatching in conventional systems, broiler chickens have a delay to nutrition thatcan last for 72h, depending on length of the hatch window, internal hatchery proceduresand transport duration. Previous research on early life feeding strategies has shownnegative effects on bodyweight (BW) gain after delayed nutrition (DN), compared withearly nutrition (EN). However, it is not known whether DN chickens can (partially)compensate for their lower BW between hatch and slaughter. In this study, we tested thehypothesis that DN chickens have an increased growth rate, as a result of compensatorygrowth. Data from 3 independent experiments were used. In these studies, broilerswere subjected to either EN or DN with different durations of DN (38 to 72 h) and daysto slaughter (14 to 35 d). In all experiments, DN groups had lower BW compared withEN which was sustained until slaughter. Relative differences in BW, however, decreasedfrom 114 to 176{\%} post placement to 102 – 112 {\%} at slaughter (35 d). Growth curves of DNand EN chickens were analysed to study whether compensatory growth could explain thedifferences in BW between EN and DN. Absolute average daily gain (aADG) was higher inEN chickens from start until slaughter. To analyse the growth curve independent of BW,relative ADG (rADG) between two ages was calculated as follows:Differences in rADG between DN and EN chickens were greater in the first 14 d (DN:63{\%}, EN: 47{\%}; P < 0.001), but smaller in the remaining grow-out period (14 – 28 d:DN: 18{\%}, EN: 16{\%}; 28 – 35 d: DN: 8{\%}, EN: 7{\%}; both P <0 .001). Based on these results,it seems that DN broilers compensate for their lag in BW during the first 14 d postplacement. As differences in absolute BW were still present at 35 d, the increase in rADGseems insufficient to catch up with EN broilers. EN chickens have higher aADG untilslaughter, however, rADG is lower, showing that growth rate is influenced by feedingstrategy. Previous literature describes interactions between compensatory growth andnutrient composition of diets on nitrogen and fat retention. This may give reason forfuture work to evaluate effects of early life feeding strategy on carcass traits.",
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Wijnen, HJ, van Roovert-Reijrink, I, van Eijk-Priester, M, van der Pol, C, Molenaar, R & van den Brand, H 2018, Effect of constant or weekly varied eggshell temperature during incubation on broiler performance up until slaughter age. in E Prukner-Radovčić & H Medić (eds), The XVth European Poultry Conference (EPC): Conference information and Proceedings. Zagreb, Croatia, pp. 498-498, The XVth European Poultry Conference, Dubrovnik, Croatia, 17/09/18.

Effect of constant or weekly varied eggshell temperature during incubation on broiler performance up until slaughter age. / Wijnen, H.J.; van Roovert-Reijrink, Inge; van Eijk-Priester, Marieke; van der Pol, C.; Molenaar, R.; van den Brand, H.

The XVth European Poultry Conference (EPC): Conference information and Proceedings. ed. / Estella Prukner-Radovčić; Helga Medić. Zagreb, Croatia, 2018. p. 498-498.

Research output: Chapter in Book/Report/Conference proceedingAbstractAcademic

TY - CHAP

T1 - Effect of constant or weekly varied eggshell temperature during incubation on broiler performance up until slaughter age

AU - Wijnen, H.J.

AU - van Roovert-Reijrink, Inge

AU - van Eijk-Priester, Marieke

AU - van der Pol, C.

AU - Molenaar, R.

AU - van den Brand, H.

PY - 2018

Y1 - 2018

N2 - After hatching in conventional systems, broiler chickens have a delay to nutrition thatcan last for 72h, depending on length of the hatch window, internal hatchery proceduresand transport duration. Previous research on early life feeding strategies has shownnegative effects on bodyweight (BW) gain after delayed nutrition (DN), compared withearly nutrition (EN). However, it is not known whether DN chickens can (partially)compensate for their lower BW between hatch and slaughter. In this study, we tested thehypothesis that DN chickens have an increased growth rate, as a result of compensatorygrowth. Data from 3 independent experiments were used. In these studies, broilerswere subjected to either EN or DN with different durations of DN (38 to 72 h) and daysto slaughter (14 to 35 d). In all experiments, DN groups had lower BW compared withEN which was sustained until slaughter. Relative differences in BW, however, decreasedfrom 114 to 176% post placement to 102 – 112 % at slaughter (35 d). Growth curves of DNand EN chickens were analysed to study whether compensatory growth could explain thedifferences in BW between EN and DN. Absolute average daily gain (aADG) was higher inEN chickens from start until slaughter. To analyse the growth curve independent of BW,relative ADG (rADG) between two ages was calculated as follows:Differences in rADG between DN and EN chickens were greater in the first 14 d (DN:63%, EN: 47%; P < 0.001), but smaller in the remaining grow-out period (14 – 28 d:DN: 18%, EN: 16%; 28 – 35 d: DN: 8%, EN: 7%; both P <0 .001). Based on these results,it seems that DN broilers compensate for their lag in BW during the first 14 d postplacement. As differences in absolute BW were still present at 35 d, the increase in rADGseems insufficient to catch up with EN broilers. EN chickens have higher aADG untilslaughter, however, rADG is lower, showing that growth rate is influenced by feedingstrategy. Previous literature describes interactions between compensatory growth andnutrient composition of diets on nitrogen and fat retention. This may give reason forfuture work to evaluate effects of early life feeding strategy on carcass traits.

AB - After hatching in conventional systems, broiler chickens have a delay to nutrition thatcan last for 72h, depending on length of the hatch window, internal hatchery proceduresand transport duration. Previous research on early life feeding strategies has shownnegative effects on bodyweight (BW) gain after delayed nutrition (DN), compared withearly nutrition (EN). However, it is not known whether DN chickens can (partially)compensate for their lower BW between hatch and slaughter. In this study, we tested thehypothesis that DN chickens have an increased growth rate, as a result of compensatorygrowth. Data from 3 independent experiments were used. In these studies, broilerswere subjected to either EN or DN with different durations of DN (38 to 72 h) and daysto slaughter (14 to 35 d). In all experiments, DN groups had lower BW compared withEN which was sustained until slaughter. Relative differences in BW, however, decreasedfrom 114 to 176% post placement to 102 – 112 % at slaughter (35 d). Growth curves of DNand EN chickens were analysed to study whether compensatory growth could explain thedifferences in BW between EN and DN. Absolute average daily gain (aADG) was higher inEN chickens from start until slaughter. To analyse the growth curve independent of BW,relative ADG (rADG) between two ages was calculated as follows:Differences in rADG between DN and EN chickens were greater in the first 14 d (DN:63%, EN: 47%; P < 0.001), but smaller in the remaining grow-out period (14 – 28 d:DN: 18%, EN: 16%; 28 – 35 d: DN: 8%, EN: 7%; both P <0 .001). Based on these results,it seems that DN broilers compensate for their lag in BW during the first 14 d postplacement. As differences in absolute BW were still present at 35 d, the increase in rADGseems insufficient to catch up with EN broilers. EN chickens have higher aADG untilslaughter, however, rADG is lower, showing that growth rate is influenced by feedingstrategy. Previous literature describes interactions between compensatory growth andnutrient composition of diets on nitrogen and fat retention. This may give reason forfuture work to evaluate effects of early life feeding strategy on carcass traits.

KW - broiler

KW - eggshell temperature

KW - incubation

KW - performance

KW - compensatory growth

KW - delayed nutrition

KW - early nutrition

M3 - Abstract

SN - 9789082915709

SP - 498

EP - 498

BT - The XVth European Poultry Conference (EPC)

A2 - Prukner-Radovčić, Estella

A2 - Medić, Helga

CY - Zagreb, Croatia

ER -

Wijnen HJ, van Roovert-Reijrink I, van Eijk-Priester M, van der Pol C, Molenaar R, van den Brand H. Effect of constant or weekly varied eggshell temperature during incubation on broiler performance up until slaughter age. In Prukner-Radovčić E, Medić H, editors, The XVth European Poultry Conference (EPC): Conference information and Proceedings. Zagreb, Croatia. 2018. p. 498-498