Egyptian Society of Animal Production (ESAP)
Egyptian Journal of Animal Production
0302-4520
Egyptian Society of Animal Production (ESAP)
94031
10.21608/ejap.2009.94031
Original Article
GENETIC AND PHENOTYPIC TRENDS OF 305-DAY MILK YIELD OF HOLSTEIN COWS RAISED AT COMMERCIAL FARM IN EGYPT
Abou-Bakr
Samy
Animal Production Department, Faculty of Agriculture, Cairo University, Giza, Egypt
01
06
2009
46
2
85
92
05
06
2020
05
06
2020
Copyright © 2009, Egyptian Society of Animal Production (ESAP).
2009
https://ejap.journals.ekb.eg/article_94031.html
unavailable
heritability
genetic and phenotypic trends
305- day milk yield
Holstein cows
Egyptian Society of Animal Production (ESAP)
Egyptian Journal of Animal Production
0302-4520
Egyptian Society of Animal Production (ESAP)
94032
10.21608/ejap.2009.94032
Original Article
COMPARISON BETWEEN DIFFERENT PROCEDURES TO DETERMINE THE RELATIVE IMPORTANCE OF THE LIFETIME PERFORMANCE TRAITS IN PREDICTING BREEDING VALUES OF HOLSTEIN COWS
Ibrahim
Mohamed A.
1
Department of Animal production, Faculty of Agriculture, Cairo University, Giza, Egypt
01
06
2009
46
2
93
102
05
06
2020
05
06
2020
Copyright © 2009, Egyptian Society of Animal Production (ESAP).
2009
https://ejap.journals.ekb.eg/article_94032.html
unavailable
Stepwise Regression
partial least squares regression
Breeding value
Lifetime performance traits
Holstein cows
Egyptian Society of Animal Production (ESAP)
Egyptian Journal of Animal Production
0302-4520
Egyptian Society of Animal Production (ESAP)
94034
10.21608/ejap.2009.94034
Original Article
GENETIC AND PHENOTYPIC TRENDS OF CALVING INTERVAL AND AGE AT FIRST CALVING IN A COMMERCIAL HOLSTEIN HERD
Ibrahim
M. A.M.
1
Rushdi
H. E.
2
Abdel-Salam
S. A.M.
3
Abou-Bakr
S.
4
Department of Animal production, Faculty of Agriculture, Cairo University, Giza, Egypt
Department of Animal Production, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt
Department of Animal Production, Faculty of Agriculture, Cairo University
Department of Animal production, Faculty of Agriculture,Cairo University , Giza, Egypt
01
06
2009
46
2
103
112
05
06
2020
05
06
2020
Copyright © 2009, Egyptian Society of Animal Production (ESAP).
2009
https://ejap.journals.ekb.eg/article_94034.html
unavailable
reproductive traits
Genetic trend
Phenotypic trend
Holstein
Egyptian Society of Animal Production (ESAP)
Egyptian Journal of Animal Production
0302-4520
Egyptian Society of Animal Production (ESAP)
94035
10.21608/ejap.2009.94035
Original Article
WOOL GRADING AND PROCESSING SYSTEM TO IMPROVE THE UTILITY OF THE EGYPTIAN BARKI WOOL
EL-Gabbas
H. M.
Anous
M. R.I.
2
Al-Betar
E. M.
Wool Production and Technology Department, Division of Animal Production, Desert Research Center, Matareya, Cairo, Egypt
Animal Production Department, Faculty of Agriculture, Ain shams University, Shubra Al-Khaima, Cairo, Egypt
01
06
2009
46
2
113
128
05
06
2020
05
06
2020
Copyright © 2009, Egyptian Society of Animal Production (ESAP).
2009
https://ejap.journals.ekb.eg/article_94035.html
unavailable
wool
Grading
breeding
bulk
harshness
processing
blanket
Barki sheep
Egyptian Society of Animal Production (ESAP)
Egyptian Journal of Animal Production
0302-4520
Egyptian Society of Animal Production (ESAP)
94036
10.21608/ejap.2009.94036
Original Article
PHENOTYPIC VARIATION BETWEEN TWO EGG-TYPE CHICKEN STRAINS FOR RESIDUAL FEED CONSUMPTION AND CELL-MEDIATED IMMUNITY
Galal
A.
1
Mahorus
M. Y.
1
Poultry Production Department, Faculty of Agriculture, Ain Shams University, Cairo, Egypt
01
06
2009
46
2
129
142
05
06
2020
05
06
2020
Copyright © 2009, Egyptian Society of Animal Production (ESAP).
2009
https://ejap.journals.ekb.eg/article_94036.html
unavailable
Residual feed consumption
immunity
laying hens