Effects of maternal energetic efficiency on egg traits, chick traits, broiler growth, yield, and meat quality. [Erratum: 2009 May, v. 88, no. 5, p. 1128.]

This study assessed egg traits, chick traits, growth, yield, and meat quality characteristics of the offspring from broiler breeders classified by 2 measurements of energetic efficiency: residual feed intake (RFI), defined as the difference between observed and expected ME intake, and residual maint...

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Veröffentlicht in:Poultry science 2009, Vol.88 (1), p.236-245
Hauptverfasser: Romero, L.F, Zuidhof, M.J, Renema, R.A, Naeima, A.N, Robinson, F
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container_title Poultry science
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creator Romero, L.F
Zuidhof, M.J
Renema, R.A
Naeima, A.N
Robinson, F
description This study assessed egg traits, chick traits, growth, yield, and meat quality characteristics of the offspring from broiler breeders classified by 2 measurements of energetic efficiency: residual feed intake (RFI), defined as the difference between observed and expected ME intake, and residual maintenance requirement (RMEm), defined as the residual of the relationship between hen maintenance requirement and feed intake. A group of 72 pullets were placed in laying cages from 16 to 60 wk of age. Individual hen-based feed allocation was provided following a standard BW target. At 41wk, eggs from 8 d of production were collected and pedigree hatched. Chicks were assigned to 1 of 3 maternal RFI (RFImat) categories: low, average, and high. A total of 366 chicks were placed in 36 floor pens, 6 per sex x RFImat interaction, and raised to 38 d. At the end of the breeder experiment (60 wk), broilers were retrospectively assigned to a low or high maternal RMEm (RMEmmat) category. Low RFImat broilers had greater 38-d BW than average and high RFImat broilers. That was achieved through a greater BW gain and feed intake of low RFImat broilers from 21 to 28 d. It was found that RFImat had no effect on feed conversion, yield, or meat quality characteristics. Low RMEm hens produced heavier eggs (62.3 g) and chicks (42.5 g) than high RMEm hens (60.0 g; 41.0 g), but RMEmmat did not affect broiler 38-d BW. High RMEmmat broilers had greater breast yield (29.5%) and lower breast shear force (4.7 kg of force/g) than low RMEmmat broilers (28.5%; 5.6 kg of force/g). The low RFImat x high RMEmmat broilers had the greatest growth to 38 d. It was found that RFImat was inversely related to broiler growth, particularly when RMEmmat was high. Although low maintenance requirements may be desirable for egg and chick production, hens with a high maintenance requirement produced broilers with greater breast yield and tenderness. Minimizing maintenance requirements may not be compatible with maximizing broiler performance and meat yield.
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[Erratum: 2009 May, v. 88, no. 5, p. 1128.]</title><title>Poultry science</title><addtitle>Poult Sci</addtitle><description>This study assessed egg traits, chick traits, growth, yield, and meat quality characteristics of the offspring from broiler breeders classified by 2 measurements of energetic efficiency: residual feed intake (RFI), defined as the difference between observed and expected ME intake, and residual maintenance requirement (RMEm), defined as the residual of the relationship between hen maintenance requirement and feed intake. A group of 72 pullets were placed in laying cages from 16 to 60 wk of age. Individual hen-based feed allocation was provided following a standard BW target. At 41wk, eggs from 8 d of production were collected and pedigree hatched. Chicks were assigned to 1 of 3 maternal RFI (RFImat) categories: low, average, and high. A total of 366 chicks were placed in 36 floor pens, 6 per sex x RFImat interaction, and raised to 38 d. 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[Erratum: 2009 May, v. 88, no. 5, p. 1128.]</title><author>Romero, L.F ; Zuidhof, M.J ; Renema, R.A ; Naeima, A.N ; Robinson, F</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c387t-3d08331e7314b96cefef405e4535cbc0a1dfd4aa0c892e52a5b255f7709487d23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Aging - physiology</topic><topic>Animal Feed</topic><topic>Animal Nutritional Physiological Phenomena</topic><topic>Animals</topic><topic>breast muscle</topic><topic>Breeding</topic><topic>broiler breeders</topic><topic>carcass yield</topic><topic>Chickens - physiology</topic><topic>chicks</topic><topic>Diet - veterinary</topic><topic>egg production</topic><topic>energy efficiency</topic><topic>energy metabolism</topic><topic>energy requirements</topic><topic>feed conversion</topic><topic>feed intake</topic><topic>Female</topic><topic>growth traits</topic><topic>maternal effect</topic><topic>Meat - standards</topic><topic>meat quality</topic><topic>meat tenderness</topic><topic>metabolizable energy</topic><topic>Ovum - physiology</topic><topic>shear strength</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Romero, L.F</creatorcontrib><creatorcontrib>Zuidhof, M.J</creatorcontrib><creatorcontrib>Renema, R.A</creatorcontrib><creatorcontrib>Naeima, A.N</creatorcontrib><creatorcontrib>Robinson, F</creatorcontrib><collection>AGRIS</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Poultry science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Romero, L.F</au><au>Zuidhof, M.J</au><au>Renema, R.A</au><au>Naeima, A.N</au><au>Robinson, F</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of maternal energetic efficiency on egg traits, chick traits, broiler growth, yield, and meat quality. [Erratum: 2009 May, v. 88, no. 5, p. 1128.]</atitle><jtitle>Poultry science</jtitle><addtitle>Poult Sci</addtitle><date>2009</date><risdate>2009</risdate><volume>88</volume><issue>1</issue><spage>236</spage><epage>245</epage><pages>236-245</pages><issn>0032-5791</issn><eissn>1525-3171</eissn><abstract>This study assessed egg traits, chick traits, growth, yield, and meat quality characteristics of the offspring from broiler breeders classified by 2 measurements of energetic efficiency: residual feed intake (RFI), defined as the difference between observed and expected ME intake, and residual maintenance requirement (RMEm), defined as the residual of the relationship between hen maintenance requirement and feed intake. A group of 72 pullets were placed in laying cages from 16 to 60 wk of age. Individual hen-based feed allocation was provided following a standard BW target. At 41wk, eggs from 8 d of production were collected and pedigree hatched. Chicks were assigned to 1 of 3 maternal RFI (RFImat) categories: low, average, and high. A total of 366 chicks were placed in 36 floor pens, 6 per sex x RFImat interaction, and raised to 38 d. At the end of the breeder experiment (60 wk), broilers were retrospectively assigned to a low or high maternal RMEm (RMEmmat) category. Low RFImat broilers had greater 38-d BW than average and high RFImat broilers. That was achieved through a greater BW gain and feed intake of low RFImat broilers from 21 to 28 d. It was found that RFImat had no effect on feed conversion, yield, or meat quality characteristics. Low RMEm hens produced heavier eggs (62.3 g) and chicks (42.5 g) than high RMEm hens (60.0 g; 41.0 g), but RMEmmat did not affect broiler 38-d BW. High RMEmmat broilers had greater breast yield (29.5%) and lower breast shear force (4.7 kg of force/g) than low RMEmmat broilers (28.5%; 5.6 kg of force/g). The low RFImat x high RMEmmat broilers had the greatest growth to 38 d. It was found that RFImat was inversely related to broiler growth, particularly when RMEmmat was high. Although low maintenance requirements may be desirable for egg and chick production, hens with a high maintenance requirement produced broilers with greater breast yield and tenderness. Minimizing maintenance requirements may not be compatible with maximizing broiler performance and meat yield.</abstract><cop>Oxford, UK</cop><pub>Poultry Science Association</pub><pmid>19096079</pmid><doi>10.3382/ps.2008-00151</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record>
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source MEDLINE; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection
subjects Aging - physiology
Animal Feed
Animal Nutritional Physiological Phenomena
Animals
breast muscle
Breeding
broiler breeders
carcass yield
Chickens - physiology
chicks
Diet - veterinary
egg production
energy efficiency
energy metabolism
energy requirements
feed conversion
feed intake
Female
growth traits
maternal effect
Meat - standards
meat quality
meat tenderness
metabolizable energy
Ovum - physiology
shear strength
title Effects of maternal energetic efficiency on egg traits, chick traits, broiler growth, yield, and meat quality. [Erratum: 2009 May, v. 88, no. 5, p. 1128.]
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