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Listar por autor "El Nagar, Ayman Gamal Fawzy"

Mostrando ítems 1-8 de 8

Comparing longevity traits in four maternal lines of rabbits

El Nagar, Ayman Gamal Fawzy (Universitat Politècnica de València, 2012-05-28)

The main objective of this study was to compare four maternal lines of rabbits (A, V, H and LP) in terms of longevity traits at their foundation time and at fixed times. Taking into account the concept that these lines ...
Functional longevity in five rabbit lines founded on different criteria: Comparison at foundation and at fixed times after selection

El Nagar, Ayman G.; Baselga, Manuel; Mínguez, Carlos; Santacreu, María-Antonia; Sánchez, Juan Pablo (Blackwell Publishing, 2021-07)

[EN] The enhancement of rabbit female functional longevity, that is the ability to avoid voluntary culling, is a paramount aspect for the sustainability of meat rabbit production; this trait represents a direct indicator ...
Genetic analysis of longevity in specialized lines of rabbits

El Nagar, Ayman Gamal Fawzy (Universitat Politècnica de València, 2015-06-29)

[EN] The global objective of the present thesis was to study the functional longevity defined as length of productive life (LPL) in five Spanish specialized lines of rabbit (A, V, H and LP). Chapter 3, aimed to check the ...
Genetic analysis of meat quality traits in maternal lines of rabbit and their diallel cross

Mínguez Balaguer, Carlos; Sánchez Serrano, Juan Pablo; Hernández, Pilar; Ragab, Mohamed; El Nagar, Ayman Gamal Fawzy; Baselga Izquierdo, Manuel (Elsevier, 2017)

[EN] Young rabbits, the dams of which came from a full diallel cross among four maternal lines (A, V, H and LP) and the sires from a single paternal line (It), that produce sixteen genetic groups, was carried out to evaluate ...
Genetic analysis of slaughter and carcass quality traits in crossbred rabbits coming from a diallel cross of four maternal lines

Mínguez, C.; Sáchez, J.P.; Ragab, M.; El Nagar, Ayman Gamal Fawzy; Baselga Izquierdo, Manuel (Editorial Universitat Politècnica de València, 2015-12-23)

[EN] An experiment was carried out to estimate the genetic group effects and the crossbreeding genetic parameters of slaughter and carcass traits using data on the rabbits that were progeny of does coming from a full diallel ...
Genetic comparison of milk production and composition in three maternal rabbit lines

El Nagar, Ayman Gamal Fawzy; Sánchez, Juan Pablo; Ragab, Mohamed Mohamed; Mínguez Balaguer, Carlos; Baselga Izquierdo, Manuel (Editorial Universitat Politècnica de València, 2014-12-22)

[EN] The aim of this study was to compare 3 Spanish maternal rabbit lines (A, V and LP) in terms of milk production and composition. These lines were founded on different criteria but selected for litter size at weaning. ...
Genome-Wide Association Study of Maternal Genetic Effects on Intramuscular Fat and Fatty Acid Composition in Rabbits

El Nagar, Ayman G.; Heddi, Imen; Sosa-Madrid, Bolivar Samuel; Blasco Mateu, Agustín; Hernández, Pilar; Ibáñez-Escriche, Noelia (MDPI AG, 2023-10)

[EN] Maternal genetic effects (MGE) could affect meat quality traits such as intramuscular fat (IMF) and its fatty acid composition. However, it has been scarcely studied, especially in rabbits. The objectives of the present ...
Growth traits of four maternal lines of rabbits founded on different criteria: comparison at foundation and at last periods after selection

Mínguez Balaguer, Carlos; Sánchez Serrano, Juan Pablo; El Nagar, Ayman Gamal Fawzy; Mohamed Ragab, Mohamed; Baselga Izquierdo, Manuel (Wiley, 2016-08)

The objective was to compare growth traits in four maternal lines of rabbits (A, V, H and LP), with the aim of understanding the consequence of the different foundation and selection processes on the growth performance of ...