Comparison of post‐hatch holding time and subsequent early performance of broiler chicks and Turkey poults

Pinchasov, Y.; Noy, Y. Ian

doi:10.1080/00071669308417567

Cited by 108 publications

(66 citation statements)

References 19 publications

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“…Moreover, Saki (2005) reported that BW was de- Interaction NS NS NS NS = not significant at P > 0.05, ***P < 0.001 1 SEM = pooled standard error of the mean creased in those chicks which were denied feed compared with groups fed with a starter diet immediately after hatching. These findings are consistent with the several reports which demonstrate that delay in feed intake after hatch adversely affects the posthatch performance of chicks (Pinchasov and Noy 1993;Bigot et al 2003;Gonzales et al 2003). …”

Section: Growth Performancesupporting

confidence: 82%

Influence of dietary organic acid blend supplementation and interaction with delayed feed access after hatch on broiler growth performance and intestinal health

Cengiz¹,

Köksal²,

Tatlı³

et al. 2012

Vet. Med. - Czech

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ABSTRACT:A trial was conducted to investigate the effects of a dietary organic acid blend for a period of 35 days on the growth performance, intestinal histomorphology and microflora of male broiler chicks with delayed access to feed. One hundred and ninety two one day old broiler chicks (ROSS 308) were randomly distributed into 4 groups housed in four replicate pens with 12 birds in each. A 2 × 2 factorial design was implemented. Four experimental groups were formed by two levels of dietary organic acid blend supplementation (Control and Fysal Dry ® ) and two periods of delayed feed access (0 and 36 h). At 36 h after hatching body weight and body weight change of chicks were significantly (P < 0.001) lower than groups fed immediately after hatching. Delayed feed access had an adverse impact (P < 0.001) on the body weight and feed consumption of broiler chickens on days 14 and 28. Between the days 28 and 35 of the feeding period, these differences disappeared. The relative weight of gizzard (P < 0.05), pancreas (P < 0.01) on day 6 and intestine (P < 0.05) on day 10, and gizzard (P < 0.01) on day 10 were reduced in birds subjected to delayed feed access. Dietary organic acid blend inclusion increased villus length (P < 0.001), whereas delayed feed access decreased villus length (P < 0.05) and increased the incidence of epithelial degeneration and basal membrane separation of the propria mucosa of villus in the jejenum. A significant decrease in Enterobacteriaceae count (P < 0.01) was noted in organic acid blend supplemented groups on day 25. Pectoral muscle malondialdehyde levels were decreased (P < 0.01) with dietary organic acid blend supplementation at day 10. Delayed feed access significantly increased (P < 0.05) the heterophil:lymphocyte ratio at day 6. Overall, dietary organic acid blend supplementation helped broiler chicks to develop a healthier intestinal microflora and this may, in turn, inhibit the delayed feed access-induced increase in malondialdehyde in the early growing period. However, the inclusion of organic acid blend to broiler diets may not be a protective management practice in preventing delayed feed access-related growth depression of broiler chickens.

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Section: Growth Performancesupporting

confidence: 82%

Influence of dietary organic acid blend supplementation and interaction with delayed feed access after hatch on broiler growth performance and intestinal health

Cengiz¹,

Köksal²,

Tatlı³

et al. 2012

Vet. Med. - Czech

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“…All hatch time groups exhibited a similar BW, feed intake, and mortality at 41 d of age (Almeida et al, 2006). Pinchasov & Noy (1993) and Tong et al (2015) found that BW loss and yolk sac utilization were increased when chicks had extended holding period. Therefore, posthatch BW loss may not be exclusively the result of dehydration.…”

Section: Effect Of Hatching Time On Yolk Sac Percentage and Broiler Lmentioning

confidence: 99%

“…Corless & Sell (1999) reported reduced BW associated with extended post-hatch holding, but these findings were not consistent with the data presented by Casteel et al (1994), who weighed each group of birds 43 d following placement on feed and water and reported no differences. Work with respect to hatch time and post-hatch holding has often differed in that chicks were placed as much or more than 24 h apart, but weighed on the same day subsequently in some experiments (Pinchasov et al, 1993;Vieira & Moran, 1999) or on the basis of days on feed in other studies (Almeida et al, 2006;Lamot et al, 2014;Dişa et al, 2015). Furthermore, holding chicks in the hatcher for 24 h has been reported to not clinically dehydrate chicks or affect live performance (Casteel et al, 1994;Joseph & Moran, 2005;Almeida et al, 2006;Lamot et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Effect of Hatching Time on Yolk Sac Percentage and Broiler Live Performance

Özlü

Shiranjang

Elibol

et al. 2018

Braz. J. Poult. Sci.

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This study investigated the effects of broiler chick hatching time on the percentage of the yolk sac and subsequent broiler live performance. Broiler hatching eggs were obtained from a commercial flock at 55 wk of age and were stored for 2 d at 18°C and 75% relative humidity (RH) prior to incubation. Chicks were identified as hatching Early (471-477 h), Middle (480-486 h), and Late (494-510 h). All chicks were removed from the trays at 510 h of incubation. Body weight (BW) and yolk weight (YW) were determined at emergence from the shell (initial hatch time) and at placement on feed. Chicks were permanently identified by hatch time with neck tags, feather sexed, weighed, and introduced to feed and water in litter floor pens.

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“…In agreement with the findings of Hager and Beane (1983) and van de Ven et al (2013), relative BW at pulling decreased with duration of holding period, indicating that chicks started to lose weight after hatch possibly due to dehydration or fasting. It has been reported that chicks and poults deprived of feed and water for 24 h post-hatch have a reduced BW through to 14 weeks of age, and that deprivation for 48 h or more post-hatch results in loss 10.7% of their initial post-hatch weight, and depressed growth and activity (Moran, 1978;Pinchasov and Noy, 1993;Corless and Sell, 1999). As found in this study, the chicks can lose up to 5.2% of their initial egg weights with a 40-h holding period.…”

Section: Discussionmentioning

confidence: 99%

Physiological status of broiler chicks at pulling time and the relationship to duration of holding period

Tong

Demmers

Romanini

et al. 2015

Animal

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Newly hatched chicks may be held longer than 48 h and experience long periods of fasting in commercial hatcheries. Limited information is known about the physiological status of chicks in such situations, due to the difficulty of precisely recording time of hatch. This study investigated the effect of the time from hatch to pulling (holding period) on physiological measures/parameters in 109 broiler chicks. Fertile Ross 308 eggs were incubated in a custom built small-scale incubator. The individual hatching time of each focal chick was determined using eggshell temperature monitoring. At 'pulling' (512 h of incubation time), the quality of focal chicks was assessed using the chick scoring method and physiological parameters were measured including BW, organ (heart, liver and stomach) weights, blood values and plasma corticosterone level. The time from hatch to pulling varied from 7.58 to 44.97 h. Egg weight at setting was significantly correlated with chick BW and weight of organs at pulling, but had no effect on chick quality, blood values and plasma corticosterone. Relative BW at pulling was negatively associated with the duration of holding period ( P = 0.002). However, there was a positive correlation between relative stomach weight and the duration of the holding period ( P < 0.001). As the holding period duration increased, there was a trend that blood partial pressure of oxygen, haematocrit and haemoglobin also increased, and blood partial pressure of carbon dioxide, total carbon dioxide and bicarbonate decreased ( P < 0.05). A wide range of plasma corticosterone was observed from chicks that had experienced different durations of holding period. We conclude that shortening the hatch window and minimising the number of chicks that experience a long holding period before pulling may improve chick quality and physiological status, which may be due to unfavourable environmental conditions that include feed and water deprivation.

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Comparison of post‐hatch holding time and subsequent early performance of broiler chicks and Turkey poults

Cited by 108 publications

References 19 publications

Influence of dietary organic acid blend supplementation and interaction with delayed feed access after hatch on broiler growth performance and intestinal health

Influence of dietary organic acid blend supplementation and interaction with delayed feed access after hatch on broiler growth performance and intestinal health

Effect of Hatching Time on Yolk Sac Percentage and Broiler Live Performance

Physiological status of broiler chicks at pulling time and the relationship to duration of holding period

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