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Register a new userEffect of using different mixtures for period of (pre-starter mixture) on growth of digestive system ,absorption of yolk sac ,and some productive parameters of broiler
تأثير استخدام خلطات علفية مختلفة لمرحلة ما قبل خلطة البادىء في تطور الجهاز الهضمي و امتصاص كيس الصفار و بعض المؤشرات الإنتاجية للفراريج
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Added by
Damascus University ورقة بحثية
Publication date
2005
fields
Animal Production
and research's language is
العربية
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Shamra Editor
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نفذ البحث على 960 صوص فروج من الهجين (هبرد) في مدجنة مزرعـة خرابـو التابعـة لكليـة الزراعة بجامعة دمشق في الفترة الواقعة بين 27/10/2003 و 23/12/2003 . وزعت الصيصان بشكل عشوائي منذ اليوم الأول للعمر إلى أربع مجموعات تجريبية 240 صوصاً في 2 كل مجموعة ضمن أربعة مكررات. تضمن كل مكرر 60 صوصاً. بلغت مساحة المكـرر 5.5 م و بكثافـة 11 صوصاً/م و يمثل كل مكرر قطاعاً مستقلاً من حظيرة ذات نموذج مفتوح على الفرشة العميقـة و كانـت 2 ظروف الإيواء و الرعاية واحدة لجميع طيور المكررات. إن هدف البحث هو دراسة تأثير استخدام مستويات مختلفة من الطاقة و البروتين في خلطات ما قبـل خلطة البادىء من عمر 1-6 أيام في امتصاص كيس الصفار و نمو الجهاز الهضمي و بعـض المؤشـرات الإنتاجية للفراريج لكامل فترة التسمين، حيث تم تشريح 48 صوصاً مقسمة إلى 16 صوصاً في عمر يوم واحد و 16 صوصاً في عمر أربعة أيام و 16 صوصاً في عمر ستة أيام إذ تم أخذ 4 صيـصان مـن كـل مجموعة تجريبية.
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 into 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.
References used
Chamblee, T.N.; Brake, J.D.; Schultz, C.D.; Thaxton, J.P. (1992). Poult. Sci . 71. 1811 – 1816
Korelecki, J.; Swiatkiewcz, S.; Kubiez, M. (1997). Zeszyty Noukowe przgland Hod.32,235-242.PTZ, Warszawa
Jamroz, D. and Wertelecki, T. (1998). Miedzynarodowe sympozjum drobiarskie WPSA, cz.II ,133-135. Olsztyn- Poland
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By the time of hatching, the residual yolk sac (RYS) should be
completely internalized into the body cavity of the chick through
the navel, then the navel should be completely closed (healed).
After hatching, the RYS contents are used for general
growth
including growth of the small intestine. The aim of this study was to
verify if there is any effect of navel condition on the growth of
small intestinal villi. Jejunum samples from 200 new hatched
chicks (at the age of 1 up to 5 days), with the average of 20 chicks
per day were obtained, and divided into 2 groups: healed navels and
unhealed navels, which were collected and studied histologically.
For the first time, this study demonstrated the negative effect of
unhealed navel on the growth of small intestinal villi. The results of
this study also demonstrated by Morphometric Parameters
Measurements of small intestinal villi that the high and the surface
areas of villi were increased in healed navel chicks in comparison
with unhealed chicks.
The influence of Red Paprika and Local Safflower in the diets on yolk color
was studied in two experiments of ٨ and ٥ weeks using ٩٠ and ٢٤ laying hens,
respectively; Loghorn hybrids of Lohmann brown and Hy- Lain Brown strain,
were used.
In the f
irst experiment, yellow corn was substituted totally by rye and wheat
and ٤ different amounts of paprika or safflower were tested (٠,٢, ٠,٣, ٠,٤ and
٠,٥٪). In the second experiment the effect of sweet red paprika or hot red
paprika in the diet (٠,٥٪) on yolk color or some of production parameters was
studied.
This study was carried out at the poultry experimental station, Technical
Institute of Agriculture, Damascus University, Kharbo. 270 of Japanese Quail
birds, one day of age were divided equally into 3 similar groups (90each). Every
group comprised
of 3 replicates of 30 each, each replicates contained 10 cages.
Birds were housed and managed under similar conditions throughout the
experimental period which lasted from the 8 to 22 weeks of age. The birds were
fed on rations recommended by NRC and contained 1, 0.65 or 2 of DLmethionine
g/kg of ration in the first (the control), second and third groups
respectively. Results showed that using ration contained 2g DL-methionine/
1kg of ration gave a significant increase in egg weight, production and
economical efficiency value as compared to the other used rations.
أجري هذا البحث بهدف معرفة تأثير إضافة مضادات الأكسدة الصناعية في الخلطات العلفية في الكفائة الإنتاجية لدجاج اللحم.
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 hatchi
ng 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.
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