Effect of reciprocal crossing Koekoek and Sasso chickens on growth performance, feed efficiency, carcass yield, mortality rate, and genetic components

SUMMARY: Reciprocal crosses of Koekoek and Sasso chickens were evaluated for growth performance, feed efficiency, carcass yield, mortality rate, and genetic components using 60 randomly selected 8-wk-cockerels (15 from each mating group) at Jimma University poultry farm. Data were measured for initi...

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Autores principales:	B.T. Itafa, A.S. Mohamed, W.H. Abate, M.A. Derseh, W.E. Woldegiorgiss
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	carcass chicken daily gain feed heterosis reciprocal cross Animal culture SF1-1100 Food processing and manufacture TP368-456
Acceso en línea:	https://doaj.org/article/a9040aaa1e6f475fbc2e56b4003233cd
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spelling	oai:doaj.org-article:a9040aaa1e6f475fbc2e56b4003233cd2021-11-22T04:19:27ZEffect of reciprocal crossing Koekoek and Sasso chickens on growth performance, feed efficiency, carcass yield, mortality rate, and genetic components1056-617110.1016/j.japr.2021.100214https://doaj.org/article/a9040aaa1e6f475fbc2e56b4003233cd2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1056617121000775https://doaj.org/toc/1056-6171SUMMARY: Reciprocal crosses of Koekoek and Sasso chickens were evaluated for growth performance, feed efficiency, carcass yield, mortality rate, and genetic components using 60 randomly selected 8-wk-cockerels (15 from each mating group) at Jimma University poultry farm. Data were measured for initial and final body weight, feed intake, daily weight gain, and feed conversion ratio. At the end of the study, following a 4-h fasting period, chickens were weighed, humanely slaughtered, and dressed. Carcass weight, dressing percentage and amount and percentage of abdominal fat were determined. Mortality was recorded. Genetic components were calculated. The collected data were analyzed using the General Linear Models (GLM) procedure of the Statistical Analysis System other than mortality rate and genetic components. Mortality rate and genetic components were analyzed using GLIMMIX Procedure of SAS version 9.4. The study revealed that the cross of Koekoek (cockerel) × Sasso (pullet) (KS) performed significantly (P < 0.05) better than the cross of Sasso (cockerel) × Koekoek (pullet) (SK) for final body weight (2615 g vs. 2208 g), feed intake (133 g vs. 93.3 g), daily weight gain (23.7 g vs.18.3 g), empty carcass weight (2006 g vs. 1604 g), and dressing percentage (77.1 g vs. 72.6 g). Further, the KS group survived significantly (P < 0.05) better than SK with the lowest mortality rate during the experimental period (0.004 vs. 0.009). KS has performed positively and highly in heterosis percentage (H %) for all parameters while SK has performed negatively for former traits. Thus, the crossing of Koekoek cockerels with Sasso pullets should be preferred to its reciprocal cross to obtain higher levels of heterosis for growth performance, feed efficiency, and carcass yield.B.T. ItafaA.S. MohamedW.H. AbateM.A. DersehW.E. WoldegiorgissElsevierarticlecarcasschickendaily gainfeedheterosisreciprocal crossAnimal cultureSF1-1100Food processing and manufactureTP368-456ENJournal of Applied Poultry Research, Vol 30, Iss 4, Pp 100214- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	carcass chicken daily gain feed heterosis reciprocal cross Animal culture SF1-1100 Food processing and manufacture TP368-456
spellingShingle	carcass chicken daily gain feed heterosis reciprocal cross Animal culture SF1-1100 Food processing and manufacture TP368-456 B.T. Itafa A.S. Mohamed W.H. Abate M.A. Derseh W.E. Woldegiorgiss Effect of reciprocal crossing Koekoek and Sasso chickens on growth performance, feed efficiency, carcass yield, mortality rate, and genetic components
description	SUMMARY: Reciprocal crosses of Koekoek and Sasso chickens were evaluated for growth performance, feed efficiency, carcass yield, mortality rate, and genetic components using 60 randomly selected 8-wk-cockerels (15 from each mating group) at Jimma University poultry farm. Data were measured for initial and final body weight, feed intake, daily weight gain, and feed conversion ratio. At the end of the study, following a 4-h fasting period, chickens were weighed, humanely slaughtered, and dressed. Carcass weight, dressing percentage and amount and percentage of abdominal fat were determined. Mortality was recorded. Genetic components were calculated. The collected data were analyzed using the General Linear Models (GLM) procedure of the Statistical Analysis System other than mortality rate and genetic components. Mortality rate and genetic components were analyzed using GLIMMIX Procedure of SAS version 9.4. The study revealed that the cross of Koekoek (cockerel) × Sasso (pullet) (KS) performed significantly (P < 0.05) better than the cross of Sasso (cockerel) × Koekoek (pullet) (SK) for final body weight (2615 g vs. 2208 g), feed intake (133 g vs. 93.3 g), daily weight gain (23.7 g vs.18.3 g), empty carcass weight (2006 g vs. 1604 g), and dressing percentage (77.1 g vs. 72.6 g). Further, the KS group survived significantly (P < 0.05) better than SK with the lowest mortality rate during the experimental period (0.004 vs. 0.009). KS has performed positively and highly in heterosis percentage (H %) for all parameters while SK has performed negatively for former traits. Thus, the crossing of Koekoek cockerels with Sasso pullets should be preferred to its reciprocal cross to obtain higher levels of heterosis for growth performance, feed efficiency, and carcass yield.
format	article
author	B.T. Itafa A.S. Mohamed W.H. Abate M.A. Derseh W.E. Woldegiorgiss
author_facet	B.T. Itafa A.S. Mohamed W.H. Abate M.A. Derseh W.E. Woldegiorgiss
author_sort	B.T. Itafa
title	Effect of reciprocal crossing Koekoek and Sasso chickens on growth performance, feed efficiency, carcass yield, mortality rate, and genetic components
title_short	Effect of reciprocal crossing Koekoek and Sasso chickens on growth performance, feed efficiency, carcass yield, mortality rate, and genetic components
title_full	Effect of reciprocal crossing Koekoek and Sasso chickens on growth performance, feed efficiency, carcass yield, mortality rate, and genetic components
title_fullStr	Effect of reciprocal crossing Koekoek and Sasso chickens on growth performance, feed efficiency, carcass yield, mortality rate, and genetic components
title_full_unstemmed	Effect of reciprocal crossing Koekoek and Sasso chickens on growth performance, feed efficiency, carcass yield, mortality rate, and genetic components
title_sort	effect of reciprocal crossing koekoek and sasso chickens on growth performance, feed efficiency, carcass yield, mortality rate, and genetic components
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/a9040aaa1e6f475fbc2e56b4003233cd
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Effect of reciprocal crossing Koekoek and Sasso chickens on growth performance, feed efficiency, carcass yield, mortality rate, and genetic components

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