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Andrieux C, Biasutti S, Barrieu J, Morganx P, Morisson M, Coustham V, Panserat S, Houssier M. Identification of different critical embryonic periods to modify egg incubation temperature in mule ducks. Animal 2021; 16:100416. [PMID: 34954551 DOI: 10.1016/j.animal.2021.100416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 11/04/2021] [Accepted: 11/05/2021] [Indexed: 11/18/2022] Open
Abstract
Egg incubation of mule ducks, mainly used for fatty liver production, is one of the critical phases in this sector. Based on hatching rate, the best incubation parameters have already been well described for poultry, but the literature on ducks is lacking. In this study, we tested different incubation conditions by varying two important factors, temperature and relative humidity, in mule ducks. These variations were applied at different periods during embryogenesis in order to measure the impact of environmental disturbances on different zootechnical performances. The temperature was increased by 1.5 °C (16 h/24) and the relative humidity was set up to 65%, during 10 days. Six 10-day developmental windows were tested, from embryonic day 9 to embryonic day 14. Our results are in line with previous reports showing that increasing incubation temperature, even when relative humidity is adjusted, can have a negative impact on duck embryonic mortality up to 24.5% for the condition E10-E20 (P < 10-5). However, the hatchability can be maintained at the level of the control groups when these modifications are applied on the latest windows (from the 11th embryonic day). Sex ratio, hatching BW, and internal temperature are also sensitive to these incubation changes, and their modification could have a major impact on later zootechnical performance. These results should contribute to the development or embryonic temperature programming approaches, especially for the fatty liver production industry.
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Affiliation(s)
- C Andrieux
- Univ Pau & Pays Adour, E2S UPPA, INRAE, UMR 1419, Nutrition, Métabolisme, Aquaculture, Saint Pée sur Nivelle 64310, France
| | - S Biasutti
- Univ Pau & Pays Adour, E2S UPPA, IUT Génie Biologique, 40000 Mont de Marsan, France
| | - J Barrieu
- INRAE Bordeaux-Aquitaine, UEPFG (Unité Expérimentale Palmipèdes à Foie Gras), Domaine d'Artiguères 1076, route de Haut Mauco, 40280 Benquet, France
| | - P Morganx
- INRAE Bordeaux-Aquitaine, UEPFG (Unité Expérimentale Palmipèdes à Foie Gras), Domaine d'Artiguères 1076, route de Haut Mauco, 40280 Benquet, France
| | - M Morisson
- GenPhySE, Université de Toulouse, INRAE, ENVT, 31326 Castanet Tolosan, France
| | - V Coustham
- Univ Pau & Pays Adour, E2S UPPA, INRAE, UMR 1419, Nutrition, Métabolisme, Aquaculture, Saint Pée sur Nivelle 64310, France
| | - S Panserat
- Univ Pau & Pays Adour, E2S UPPA, INRAE, UMR 1419, Nutrition, Métabolisme, Aquaculture, Saint Pée sur Nivelle 64310, France
| | - M Houssier
- Univ Pau & Pays Adour, E2S UPPA, INRAE, UMR 1419, Nutrition, Métabolisme, Aquaculture, Saint Pée sur Nivelle 64310, France.
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Elmehdawi AS, Hall MA, Skewes PA, Wicker DL, Maurice DV. Influence of thermal stimulation during the late phase of incubation on hatching results and post-hatch broiler performance under commercial conditions. Br Poult Sci 2016; 57:848-854. [PMID: 27385195 DOI: 10.1080/00071668.2016.1209737] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Two experiments, which differed in breeder age, strain and season, were conducted to study the influence of low-intensity, short-duration thermal stimuli during the late phase of incubation on hatchability and performance. The first experiment conducted in April-June used eggs from Cobb × Ross broiler breeders at 35-41 weeks of age and the second experiment performed in February-April used eggs from Hubbard × Cobb broiler breeders at 49-53 weeks of age. Eggs in the test group had the same physical environment as eggs in the control group except that incubation temperature was increased by 1˚C for 2 h/d above the control group from 18 to 20 d of incubation (DI). The results demonstrated that thermal stimulation of 1˚C for 2 h/d above control incubation temperature during 18-21DI did not have any adverse effects on hatch and post-hatch performance of broilers. In both experiments, treatment did not significantly alter the secondary sex ratio in hatched chickens, but hatch residue showed that the proportion of unhatched male embryos was significantly lower in the test groups than in the control groups. In the first experiment, thermal stimulation improved feed conversion by 1.82% compared with the control.
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Affiliation(s)
- A S Elmehdawi
- a Department of Animal and Veterinary Sciences , Clemson University , Clemson , SC , USA
| | - M A Hall
- a Department of Animal and Veterinary Sciences , Clemson University , Clemson , SC , USA
| | - P A Skewes
- a Department of Animal and Veterinary Sciences , Clemson University , Clemson , SC , USA
| | - D L Wicker
- b Fieldale Farms Corporation , Baldwin , GA , USA
| | - D V Maurice
- a Department of Animal and Veterinary Sciences , Clemson University , Clemson , SC , USA
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