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Register a new userThe effect of parent age and hatching egg weight on productive parameters of broiler fed on vegetable mixtures
تأثير عمر الأمهات و وزن بيضة التفريخ في المؤشرات الإنتاجية للفروج المغذى بالخلطات النباتية
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Damascus University ورقة بحثية
Publication date
2003
fields
Animal Production
and research's language is
العربية
Created by
Shamra Editor
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نفذ البحث على دفعتين من بيض التفريخ المأخوذ من قطيع أمهات الفروج (شيفرستاربرو) بعمرين مختلفين (39 أسبوعًا و 59 أسبوعًا)، درج بيض الدفعة الواحدة في ثلاث فئات وزنية قسم بيض الفئة الواحدة إلى ثلاثة مكررات، فرخ بيض المكررات في مفرخ واحد، و عند الفقس أخذ من كل مكرر 115 صوصًا سمنت في قطاع مستقل حتى عمر 49 يومًا. جميع ظروف الإيواء و الرعاية و التغذية كانت واحدة لجميع طيور المكررات، حيث غذيت جميع طيور المكررات على الخلطات النباتية.
The research was carried out on two classes of hatching eggs obtained from broiler breeder flock ( shifer starbro- Hybird ) 39 and 59 wk of age . In each class the hatching eggs were graded into three groups according to their weights. The hatching eggs of each group were divided into three replicates . Eggs of all replicates were incubated in the same incubator . At hatching (115) chicks were taken from each replicate and fed in separate pen until 7 weeks of age . All conditions of housing, rearing and feeding ( vegetable diets ) were same for all birds of all replications.
References used
Baher, J. M. and S.S . Palmer ،1989 . The influence of aging on ovarion function . Crit . Rev . Poult . Biol . 2:103 – 110
Etches, R., J. 1990. The ovulatory cycle of the hen . Crit .Rev. Poult. Biol . 2:293 -318
Fasenko, G. M, R.T Hardin and F . E . Robinson . 1992 Relationship of hen age and age and egg sequence position
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The research was carried out on 1774 chicks of sexual separate chicken from
the hybrid Hibrd. The chicks were distributed into five groups, every group
contained three repelications, and the chicks were fattened until the age of six
weeks. The pro
gram of feeding and sex was as the following in every group:
The first group /control/: Its birds were both male and female /not sexual
separate fattening/, they were fed on three vegetal mixtures
according to age stages.
The second group: Its birds were only male, and it was fed on three vegetal
mixtures according to age stages /the mixtures of control group /.
The third group: Its birds were only female, and it was fed on three vegetal
mixtures according to age stages /the mixtures of control group/.
The fourth group: Its birds were only male, it was fed according to age stages
on three vegetal mixtures, which were distinguished by there high
content of metabolic energy and raw protein, with comparison
between them and the mixtures of control group.
The fifth group: Its birds were only female, it was fed on three vegetal
mixtures, according to age stages, which were distinguished by
there low content of metabolic energy and raw protein with
comparison between them and the mixtures of control group.
The research was carried out using 1728 broiler chicks (shifer starbro
hybrid), They were divided into eight groups, each one consists of three
replicates with 72 birds in every repetition .The birds of all repetitions were
fattened until 49 days
in separate pen of open type walk ,and on deepbedplate
.All conditions of placement, rearing and feeding were the same for all birds of
repitition in different groups.
Two experiments were carried out to determine the effect of flock
age on egg laying pattern, floor laying, egg weight, hatchability,
fertility and body weight at hatch. Eggs were collected from 32and
43 wk old Cobb 500 broiler flocks for 6 consecu
tive days hourly to
study egg laying pattern and floor laying (experiment 1). In
experiment 2, 2916 eggs from the flock at 32 ,43 and 49 wk old
were used to determine the effect of flock age on egg weight,
hatchability, fertility and body weight at hatch.
The study was carried out at the experimental station, Faculty of
Agriculture. Damascus University. 1464 of the hybrid Lohman broiler chicks,
one day old, were divided randomly and equally into 8 groups (182 chicks/ G)
with 3 replicates of 61 chic
ks each. Chicks in each replicate were reared
separately on deep litter in an independent room of open housing till the age of
42 days. All housing and management procedures were similar for all chicks
while the feeding was different throughout the fattening period in terms of the
amounts of lysine and methionine added to the mix feed. Chicks of G1, G2, G3
and G4 were fed on plants mixtures supplemented with 1, 1.5, 2 and 2.5 kg/ ton
of methionine, respectively. Chicks in G5, G6, G7 and G8 were fed on the same
mixtures of the previous groups but supplemented additionally with 1kg/ton of
lysine. Result showed that adding lysine 1kg/ton and methionine 2kg/ton to
plant mixtures of feeds of broiler helped in improving significantly most of the
indicators of productivity and this in turn led to a reduction of the cost of
feeding and to produce 1 kg live weight, thereby raising the index profit from
the process of fattening and increasing the gain from fattening process.
The research was carried out on (960) broiler chicks of the hybrid Hibrd in
the Poultry Unite of Kharabo–Agriculture Faculty–Damascus University,
during 27/10/2003 and 23/12/2003.
The chicks were distributed randomly since the first day of age int
o four
experimental groups, every group contained 240 chicks distributed as four
replicates, every replication contained 60 chicks, the area of the replication was
5.5m2 and the density was 11 chicks/m2. Every replication is an independent
sector from byre is open type on deep litter, all conditions of keeping and
caring were the same for all birds of replications.
The purpose of research was to study of effect of using different levels of the
energy and raw protein into mixtures of (pre-starter) since the first day until
sixth day of age on absorption of yolk sac, growth of digestive system ,and some
productive parameters of broiler. 48 chicks were dissected, the chicks were
distributed as 16 chicks in the first day and 16 chicks in the fourth day and 16
chicks in the sixth day of age, from every group 4chicks were evaluated.
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