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A comparative study of productive, reproductive and physiological performance in silver Montazah and Matrouh cocks strains under two different housing systems
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Abstract: 192 cocks 20-weeks old from each of Silver Montazah (SM) and Matrouh (MAT) strains were randomly chosen and equally housed in individual cages or in floor pens (with four equal replicates 24 cocks each) to compare their productive, reproductive and physiological performance under two housing systems (cages and floor) during the period from 20 to 36 weeks (wks) of age.
The obtained results could be summarized as follows:
Silver Montazah cocks were significantly (P < 0.05) heavier in body weight at 24 and 36 wks of age and consumed significantly more amounts of feed .than MAT ones,. However, Matrouh cocks had significantly (P< 0.05) higher values for semen quality traits such as ejaculate volume, aggressive motility, sperm concentration and live sperms percent than SM cocks. Plasma concentrations of total protein (TP), albumin (ALB), triiodothyronine (T) and testosterone (TES), testis weight and fertility percent were significantly higher in MAT cocks than in SM cocks, while there were no significant differences in plasma calcium (Ca), phosphorus (P) levels and hatchability percent between them.
Concerning the effect of housing system, cages cocks had significantly (P <0.05) higher body weight at two studied ages, Meanwhile daily feed consumption was not significantly differed between both housing systems. Cages cocks had significant (P <0.05) improvement in semen quality traits (ejaculate volume, sperm motility, sperm concentration, percentages of live and abnormal sperms) Also, cages cocks had significantly higher values of plasma TP, ALB, T3, TES,
testis weight, fertility and hatchability percentages, while there were no difference in Ca and P levels as compared with floor cocks.
Regarding the interaction between strain and housing system, both strains had recorded significantly higher body weight under cage rearing system, while there was no significant difference in feed consumption within each strain between both housing systems. MAT cocks reared under cages system had the superiority values for ejaculate volume, sperm motility, sperm concentration, live sperm percentage, plasma concentrations of Ca, P, TP, ALB, T 3 and TES, testis weight and fertility and hatchability percentages as compared with the other experimental groups.
In conclusion, MAT strain cocks were better in productive and reproductive performance. Also, cage rearing system was the best for obtaining high body weight, semen quality and fertility and hatchability percentages. The best performance was recorded for MAT cocks under cage rearing system.
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| Publication year |
2009
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| Pages |
364-383
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| Availability location |
معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى - الجيزة
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| Availability number |
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| Organization Name |
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| serial title |
Egyptian Journal of Applied Science
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| ISSN |
1110-1571
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| Author(s) from ARC |
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| Agris Categories |
Animal physiology - Nutrition
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AGROVOC
TERMS |
Cages.
Cocks.
Floors.
Housing.
Physiological requirements.
Production.
Reproductive performance.
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| Publication Type |
Journal
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