جدول المحتويات

مجلة العلوم الزراعية العراقية

ISSN: ISSN:00750530 / EISSN:24100862
الجامعة: جامعة بغداد
الكلية: الزراعة
اللغة: Arabic and English

This journal is Open Access

حول المجلة

تأسست مجلة العلوم الزراعية العراقية في كلية الزراعة جامعة بغداد عام 1966. كانت المجلة تصدر بعددين في العام فقط. بدأت المجلة عام 2000 باصدار ستة اعداد في السنة لكل مجلد, وهي الان في عام 2016 بالمجلد (47). تشمل ابحاث المجلة كافة العلوم الزراعية المرتبطة بالعلوم النباتية والحيوانية فضلاً عن المكننة الزراعية والاقتصاد الزراعي والارشاد الزراعي والعلوم الداعمة للعلوم الزراعية مثل الكيمياء والفيزياء لاسيما المرتبطة بالضوء والالحرارة والرياح وغيرها. يتضمن المجلد الواحد حالياً اكثر من 75 بحثأ حيث يتضمن العدد الواحد بين 20-25 بحثاً بحسب عدد الابحاث المقبولة في كل عدد

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معلومات الاتصال

tijasub@yahoo.com
tel :
009647804541817
009647512748875
address:
college of Agric. / Univ. of Baghdad
Al Jadreah, Baghdad, Iraq

جدول المحتويات السنة: 2009 المجلد: 40 العدد: 1

Article
TILLING: MODERN TECHNIQUE COMBINES TRADITIONAL MUTAGENESIS AND FUNCTIONAL GENOMICS
(تِلِنك): أحدث تقنية تجمع بين الطفرات التقليدية والجينوم الفعّالة

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الخلاصة

The information revolution of DNA sequence has created a unique opportunity to investigate the function of genes. The approach that determines the function of genes first defined by DNA sequence analysis is called (Reverse Genetics=RG). The tools available for RG of plants include the use of T-DNA for gene tagging and the use of RNA interference. While these powerful methods, still have limitations, for example, they do not work in all plant species or genera. Targeting Induced Local Lesions IN Genomes (TILLING) is reliable and widely applicable. (TILLING) combines chemical mutagenesis with mutation screens of pooled PCR products, followed by isolation of mutant alleles of the targeted genes. Genes are amplified by PCR using pooled genomic DNA from several individuals as a template. Following denaturation and renaturation of the amplified DNA, heteroduplexes form if organisms with wild type and mutant sequence are both present in the pool. The heteroduplexes can be detected by cleavage with an endonuclease and resolution of the resulting fragments on a sequencing gel. (TILLING) has two significant advantages over existing plant gene knock-out tools: first, it is applicable to any plant since it does not require transgenic or cell culture manipulations. Second, it produces an allelic series of mutations including (Hypomorphic) alleles that are useful for genetic analysis. The (TILLING) technique can be used to discover and survey natural variation. The technique is called (ECOTILLING) and has been applied to human and many plant species. (TILLING) can also be used to detect naturally occurring single nucleotide polymorphisms (SNP’s) in genes among cultivars or ecotypes of any species or genera. These SNP’s can serve as genetic markers in mapping, breeding and genotyping and can provide information concerning gene structure, linkage disequilibrium, population structure or adaptation. The latter, has a prime importance for all crop plants.

الكلمات الدلالية


Article
THE EFFECT OF HONEYCOMB SELECTION ON GRAIN YIELD OF SORGHUM
تأثير الانتخاب بخلية النحل في حاصل حبوب الذرة البيضاء

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الخلاصة

To investigate the effect of honeycomb selection in improving crop grain yield , field trials were undertaken for four seasons on the farm of Dept. of Field Crops, Coll. of Agric./Univ. of Baghdad during 2005-2007. The sorghum (Sorghum bicolor Moench) Lilu cv. was used. Seeds were planted in the first three seasons using honeycomb design of 1.3 m between furrows and 1.5 m between plants. Parameters used for selection was, head weight. The resulted seeds were planted for yield trial along with original populations. Plant leaf area of selected plants was increased from 0.54 to 0.59 m² under planting population of 60.ooo p/ha. This increase was reflected on plant dry matter that increased from 377 to 402g, growth rate from 3.13 to 3.26 g/plant/d, and kernel/head from3633 to 4250. this implies that system capacity constant (SCC) was significantly improved. This selected population yielded 9.0 t/ha compared to 6.94 t/ha of the original poplation when planted at 100.000 p/ha.Value of heritability for trait used was 65.8% for head weight after 2 cycles of selection. It was clear that additive gene action has improved SCC of selected plants. It was recommended to use honeycomb method to develop cultivars of high vigour better than those developed by conventional selection.

الكلمات الدلالية


Article
GENETIC STUDIES ON ECONOMIC CHARACTERS IN SOME INTERVARIETAL COTTON CROSSES.
تقدير بعض المعالم الوراثية لصفات الحاصل ومكوناته في بعض تضريبات القطن الصنفية

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الخلاصة

A field experiment comparison was carried out during 2004 for six population (P1, P2, F1, F2, BC1 and BC2) by using a randomized completely block design with three replications to study genetic parameters in some intervarietal cotton crosses. Both methods for estimating gene effects (weighted least square of joint scaling test and weighted least square of digenic interaction) revealed significant positive additive effects in plant height for Marsoomi 4 X Lashata, Marsoomi 4XW888 crosses, seed and lint cotton yield for the first cross, seed index for Marsoomi 4 X Lashata and Coker 310 X Packot 189 crosses. In addition to lint index in the last cross, while dominance effects were important by using first method of estimating gene effects. Significant positive additive X additive gene effects appeared in seed cotton yield for Lashata X Marsoomi 4 cross associated with a large proportion of additive variance, while additive X dominance, dominance X dominance gene effects were exist in yield and it's components in other crosses. High ratio of genetic advance (14.87-40.49%) and hybrid vigour of cotton yield may be resulted from additive, dominance, co- dominance and other epistatic effects, besides superiority in growth traits. Therefore, we suggest to continue breeding program to select good segregates of these crosses.

الكلمات الدلالية


Article
EFFECT OF ORGANIC AND MINERAL FERTELIZATION IN GROWTH AND YIELD OF POTATO AND CONCENTRATION OF NPK IN PLANT LEAVE
تأثير التسميد العضوي والمعدني في نمو وحاصل البطاطا وتركيزمغذيات N و P و K في أوراق النباتات في مراحل مختلفة من النمو

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الخلاصة

A Field experiment was carried out to investigate the effects of organic fertilizer(sheep manure) and mineral fertilizers urea and potassium sulfate on growth and yield of potato(Solanum tuberosum L.) plants and concentration of NPK nutrients in plant leaves at different stages of growth in silt loam soil(alluvium). Potato tubers cultivar DRAGA, class “A” at spring season in3x3x3 split- split plots arranged with RCBD of three replicates were planted. Treatments included three levels of decomposed organic fertilizer: 0, 1.5, 3% , three levels of nitrogen fertilizer urea:0, 120 , 240kg N. ha-1 and three levels of potassium fertilizer (K2SO4): 0, 160, 320kg K. ha-1.The tubers were picked (harvested) at the end of MAY -2004. Organic and nitrogen fertilizers significantly affected marketable yield. The treatment M2N2K0(30 ton organic fertilizer ha-1,240 kg N ha-1,0 kg K ha-1) gave the highest tuber 24.35 t. ha-1 .However, this treatment did not differ significantly from M1N2K0 (15 ton organic fertilizer ha-1,240 kg N ha-1,0 kg K ha-1) which gave23.26 t. ha-1 .Concentrations of NPK nutrients in plant leaves at three stages of growth were as follows: growth stage>flowering stage>harvesting stage for nitrogen nutrient and flowering stage>growth stage > harvesting stag for potassium and phosphors nutrients.

الكلمات الدلالية


Article
EFFECT OF FOLIAR FEEDING OF IRON , ZINC AND POTASSIUM ON GROWTH AND YIELD OF WHEAT
تاثير التغذية الورقية بعناصر الحديد والزنك والبوتاسيوم في نمو وحاصل حنطة الخبز

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الخلاصة

A field experiment was conducted during the growing seasons 2002 – 2003 and 2003 – 2004 at the experimental fields of college of Agriculture – Abu – Ghraib – University of Baghdad in a silty clay loam Typic Torrifluvent to investigate the efect of foliar feeding of Iron , Zinc and Potassium on some growth characteristics and grain yield of wheat , cultivar – IPAA – 99 . The experimental design was split – split plots with using the RCBD with three replicates . Potash treatments occupied the main plots , K0 :control treatment , K1 :120 kg K.ha-1 applied to the soil , K2 :5000 mg K.l-1 foliar , K3 :120 kg K.ha-1 applied to the soil + 3000 mg K.l-1 foliar , K4 :120 kg K.ha-1 applied to the soil + 6000 mg K.l-1 foliar , and K5 :120 kg K.ha-1 applied to the soil + 9000 mg K.l-1 foliar . Zinc treatments 0,15, and 30 mg Zn.l-1 occupied the sub plots , while the iron treatments 0 , 50 and 100 mg Fe .L-1 occupied the sub – sub plots . Results showed that interaction between 120 kg K.ha-1 added to the soil and spaying with concentration of 100 mg Fe.L-1 gave significant of chlorophyll content and produced highest mean of chlorophyll content , which was 59.74 microgram . cm-1 , while it was only 51.44 microgram . cm-1 . Results showed also that spraying with the combination of 100 mg Fe . L-1 and 30 mg Zn . L-1 gave highest means for height of plant and flag leaf area which were 107.83 cm and 45.44 cm2 for the two parameters respectively , while they were only 95.51 cm and 28.18 cm2 for all the above two parameters respectively . Results showed also , that the data of the second season had significant data for the grain yield compared with the first season . The Zn2 (30 mg Zn . l-1) had the superiority data compared with other treatments or other combinations and gave the highest rate for grain yield that were 664 gm . m-2 , 718 gm . m-2 and 691 gm . m-2 for the treatments Zn2 , Zn2 × Fe2 and K5 respectively .

الكلمات الدلالية


Article
EFFECT OF SOIL AND FOLIAR FERTILIZATION WITH NPK ON GROWTH AND YIELD OF BREAD WHEAT
تأثير التسميد الارضي والورقي بعناصر K,P,N في نمو وحاصل حنطة الخبز

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الخلاصة

A field experiment was conducted at the College of Agriculture Univ. of Baghdad . during 2005-2006 season , to study the effect of soil and foliar fertilization with NPK on growth and yield of bread wheat Triticum aestivum L. c.v. Abu Ghraib3 with three replications . The soil was a silt clay loam texture (Typic Torrifluvents).Soil application of fertilizer wear three levels S0 , S1(100+60+80) ,S2(200+120+160) kg.ha‾¹ of (N+P+K) with seven treatments of foliar application , control , N , P , K, NP, NK, NPK, and it's interactions with soil application . The concentrations of nutrients were 3000N, 1500P, 3000K mg.l‾¹ . Foliar applications were done three times ; at the beginning of elongation , boot and shoot stages . Urea , triple super phosphate and potassium sulfate were used as sources of N,P,K , respectively. At flowering stage, plant samples were taken to determine dry weight of shoot . At maturity, plants were harvested, grain yield and its components were reported. The results can be summarized as follows:Soil application of NPK fertilizer caused signiflcant increases in all studied parameters . The level of fertilizers S2 gave higher effect compared with S0 treatments .The foliar application had significantly increased grain yield and it's components for all studied parameters over control . Foliar spray with N only showed more effects on plant growth and yield than each of P or K . The interactions between soil addition of 200+120+160 kg.ha‾¹ N, P and K together with foliar applications of these nutrients had highly significant effects in increasing all parameters compared with control . An increase in the dry matter weight from 6.33 to 18.5 g .plant-1 (dry wt) grain yield from 1650 to 5995 kg.ha-1 , spikes number. m-2 from 208 to 470 , The number of grains per spike from 25.2 to 56.5 grain. spikes-1 and weight of 1000 grain from 20.6 to 43.8 g for S2FNPK compared with control .

الكلمات الدلالية


Article
SOME PROPERTIES OF BACTERIAL CELLULOSE PRODUCED FROM ACETOBACTER XYLINUM- FEA 48
بعض خصائص السيليلوز المنتج من بكتريا A. xylinum

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الخلاصة

and its ability to water holding as important properties of cellulose produced by A. xylinum FEA 48 were studied. It was found that the bacterial cellulose had highest crystallinity index and high biodegradability by Aspergillus cellulases. The results showed that it is possible to modify bacterial cellulose during microbial synthesis through the addition of suitable modifier to the culture medium. The modification of bacterial cellulose carried out using medium composed of chitosan/ lactic and chitosan/ acetic acid. Two types of hydrogels of bacterial cellulose modified by chitosan/ lactic and chitosan/ acetic acid, characterized by water content were compared with plant cellulose and inhibition activity against E. coli and S. aureus. The inhibition of bacterial growth was clearly higher in the case of E. coli. as compared to S. aureus.The percentage for inhibition of bacterial growth was 99.99% to E. coli with two types of modified bacterial cellulose and 99.79% and 92.92% t0 Staph. aureus with two types of modified bacterial cellulose respectively.Sixty one mutants were derived from the wildtype of the studied bacteria using chemical mutagen ( N- methyl- N- nitroso – N- nitrosoguanidine ). Cellulose productivity was increased in all mutants, and the mutant termed A. xylinum FEA 48 produced 12.82 g/ l of cellulose after only four days.

الكلمات الدلالية


Article
EFFECT OF EXTRACTION METHOD OF GINGER ROOTS ON ANTIOXIDANT ACTIVITY
تأثير طريقة الاستخلاص لجذور الزنجبيل في الفعالية المضادة للأكسدة

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الخلاصة

The effect of the extraction method of ginger roots on antioxidant activity was studied in linoleic acid system. Ginger roots were extracted by four methods, the water extraction (A1), alcoholic extraction (A2), reflex distillation extraction (A3) and extraction by using cellulases (A4). The Antioxidant activity was estimated in linoleic acid system, the degree of oxidation was estimated by thiocyanate method, the absorbance values were taken on 500nm during the storage period which was 17 days. The Results showed that all the above mentioned extracts gave a clear effect in decreasing the oxidation rate of linoleic acid. The extract A4 by using celluloses showed the highest effect, then the reflex distillation extract A3, water extract A2 and finally alcoholic extract A1. The inhibition percentage for linoleic acid oxidation were calculated for the four extracts which were 85.24, 83, 76.8 and 68% for A4, A3, A2 and A1 respectively. The extraction A4 gave the highest inhibition percentage for linoleic acid oxidation. In application, ginger powder was added to each of sauce and ketchup at 0.2%. The total microbial count was estimated, moreover coliform count was estimated for 3 weeks, the results showed that all the treats in sauce had no growth except at third week which were 8×103 CFU/ml, while in ketchup the total count was 3.2×104 CFU/ml colony in control and decreased to 2×103 by using ginger, in the second treatment was 8×103 CFU/ml. on the other side was found that contained cumarin was the active antimicrobial compound. The antioxidant activity for ginger in linoliec acid for sauce and ketchup were estimated and was found that the inhibition percentage were 83.3% and 77.78% respectively. It can be concluded that, the using cellulases in extraction was resulted plant extracts contain more active antioxidant compounds against lipids oxidation and antimicrobial growth. Thus, can be used as antioxidants and antimicrobial additives for protecting many food products.

الكلمات الدلالية


Article
EFFECT OF SPRAYING WITH YEAST SUSPENSION ON VEGETATIVE, FLORAL GROWTH CHARACTERS AND VASE LIFE OF FREESIA.
تأثير الرش بمعلق خميرة الخبز في النمو الخضري والزهري والعمر المزهري لنبات الفريزيا

المؤلفون: S.N.Jasim. صدى نصيف جاسم
الصفحات: 110-119
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الخلاصة

This search contained two experiments, field and Lab. vase life of Freesia flowers. The Field study was undertaken in the lathhouse of the Dept of Horticulture .College of Agriculture .Univ of Baghdad in spring 2007 to investigate the effect of foliar spraying with yeast suspension with concentrations 4,8and10gr/l water in addition spraying with distilled water on vegetative, flowering growth characters and vase life of plants. the plants were sprayed for three times between spray and other ten days, The first spray was after one month of corms planting. A randomized complete block design with three replications. The vase life experiment was factorial with complete block design of four concs, and four preservative solutions (water, limon1%, sucrose5% and 8HQS2%) with three replications. The results of spraying with yeast suspension significantly increased plant height with cons 8and 10gm/l 39.7 and 37.3cm ,leaf number 8.8 and 7.5, chlorophyll content in leaves,743.4 and 732mg/m2.The floral characters also increased significantly compared with control in number of floret plant, first floret diameter for both cons 4 and 10 g/l, flower stalk tall for all concentration of yeast suspension. All concs of yeast suspension reduced number of days for flowering with average ten days, also increased significantly longevity of flowers on plants compared with control. We found from the results there was no significant effect for yeast suspension only on the vase life of Freesia. It was also found that the preservative solutions had significant effects in vase life. The longest vase life was preserved only in water 12.7 days, and the lowest vase life was preserved in 8HQS (8.9) days. The vase life differed significantly in between the effect of yeast concentration and preservative solutions reached maximum 14 days in treatment (T2 ×W)whereas minimum vase life (8 days) was in combination (T3×S) and (T0×8HQS) as compared with control (10.7 days).

الكلمات الدلالية


Article
FIRST RECORD OF XYLOCORIS FLAVIPES ( REUTER ) ( HEMIPTERA : ANTHOCORIDAE) ON GRATER WAX MOTH GALLERIA MELLONELLA ( L.) ( LEPIDOPTERA : PYRALIDAE) IN IRAQ
ملحوظة بحثيةأول تسجيل للمفترسXylocoris flavipes ( Reuter ) ( Hemiptera : Anthocoridae ) على دودة الشمع الكبرى Galleria mellonella ( L. ) ( Lepidoptera : Pyralidae ) في العراق

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الخلاصة

The predator Xylocoris flavipes ( Reuter ) was considered one of major predators in the world which predate many insects of stored grains. This predator was recorded as a new record on eggs and larvae of greater wax moth Galleria mellonella (L.) ( 2005 ) in Abu-Graib in Iraq. The predator was observed with high numbers on casualty combs by greater wax moth. The adults and nymphs are prey all stage of insect with out adult in the laboratory while prefer in predation the eggs and the first larval instar which the predation occurred while entering the longest mouth part in external coat of eggs or external wall of first larval instar and feeding on internal sap contents which caused shrink egg scale and the infected larval was inactive, low movement and appeared dried bodies in addition to dark color because of infected pathogens especially bacteria Bacillus thuringiensis during wounds which occurred by predators.

الكلمات الدلالية


Article
THE STATUS OF RULAR WOMEN IN THE MARSHES OF SOUTHERN PART OF IRAQ
واقع المرأة الريفية في منطقة الاهوار جنوبــــي العراق

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الخلاصة

The objecteves of this research is to study the reality of extention , economic and social of rular women in the marshes region at southern of Iraq .South Governorates (Basrah , Mysan and Thie – qar) have been chosen to conduct this research because they were exist their . So Al-Qurna , Al-Mdayna and Al-deer in Al-Basrah governorate , Al-akeeka , Aum-Alnaaga ,Al-haweza , Al-msharah and Kahlaa in Mysan governorate, and Al hamar , Alboshama , Alsanaf and Al-chybaysh at Thi-Qar governorate . The experiments units included of 154 rular women and we used double criterion to evaluate social , economic and extention status of rular women by(yes or no) have been used . sixty items divided in three categories (extention , economic , and social level) .The final result clarified that most of women work in all agriculture methods activities Such as : animal activitiy , plant activity and food craft industries . most of them suffering from insufficient and lack of aids and service from out side such as: health , education , agriculture service and extention service which support them in their life . Research recommended to intensive efforts of agent extention by women advisor through gifts and money to improve ther condition .most of rular women to be sure of astrong contact with women extention advisor in agriculture dissimination knowledge through them .

الكلمات الدلالية


Article
EFFECT OF WASHING AND PHYSICAL FORM OF CHEMICALLY TREATED BARLEY STRAW ON NUTRITIVE VALUE, PHENOLIC COMPOUND AND ACTIVITY OF RUMEN BACTERIA 1-Sodium hydroxide treatment
تأثير عملية الغسل والشكل الفيزيائي لتبن الشعير المعامل كيميائياً في قيمته الغذائية و تركيز المركبات الفينوليه وفعالية بكتريا الكرش1- المعاملة بهيدروكسيد الصوديوم

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الخلاصة

The objective of this experiment was to study the effect of washing chopped and ground treated barley straw with sodium hydroxide (4 % on dry matter basis) on its chemical composition, invitro digestibility, phenolic compound concentration and number of aerobic and anaerobic bacteria, by using 2x2x2 factorial arrangement for treatments. The results showed, a significant increase in cellulose, organic matter(OM) digestibility, pH and phenolic compound concentration and reduced OM, acid detergent fiber (ADF), hemicellulose and lignin content of treated straw as compared with untreated. Aerobic and anaerobic bacteria and OM were significantly increased in treated straw as compared with untreated. Rumen liquor of invitro experiment showed a significant increase in anaerobic bacteria and ammonia N and a significant decrease in phenolic compound concentration, pH and ADF in washed treated straw as compared with untreated. The results showed improvement in nutritive value for treated straw and increase in total phenolics which extracted with water directly after treated; the recommendation was to study quality and quantity of phenolics in treated and untreated barley straw and its relation with digestible coefficient.

الكلمات الدلالية


Article
EFFECT OF WASHING AND PHYSICAL FORM OF CHEMICALLY TREATED BARLEY STRAW ON NUTRITIVE VALUE, PHENOLIC COMPOUND AND ACTIVITY OF RUMEN BACTERIA 2-Ammonia hydroxide treatment
تأثير عملية الغسل والشكل الفيزيائي لتبن الشعير المعامل كيميائياً في قيمته الغذائية و تركيز المركبات الفينولية وفعالية بكتريا الكرش2- المعاملة بهيدروكسيد الامونيوم

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الخلاصة

The objective of this experiment was to study the effect of washing chopped and ground treated barley straw with ammonium hydroxide solution (equivalent to supply 3.3% nitrogen in DM basis) on chemical composition, invitro digestibility, phenolic compounds concentration and number of aerobic and anaerobic bacteria, by using 2x2x2 factorial arrangement for treatments. The results indicated that ammonium hydroxide treated barley straw significantly increased total N content, cellulose, organic matter(OM) digestibility, pH and phenolic compounds concentration, with highly reduction in DM,OM,NDF,ADF and lignin as compared with untreated straw. However, no differences were shown in aerobic and anaerobic bacteria between treated and untreated straw. Rumen liquor of invitro experiment indicated a significantly increased in content of phenolic compounds, aerobic and anaerobic bacteria, ammonia N and pH for treated straw as compared with untreated. Washed treated straw highly increased OM, aerobic and anaerobic bacteria and significantly reduced the content of total N and phenolic compounds as compared with unwashed treated straw. The effect of physical form on ammonium hydroxide treatment indicated that ground treated straw significantly increased OM and decreased lignin content as compared with chopped treated straw. The recommendation was to study quality and quantity of phenolics in the rumen after consumption treated straw and animal's body ability to discard it.

الكلمات الدلالية


Article
EFFECT OF WASHING AND PHYSICAL FORM OF CHEMICALLY TREATED BARLEY STRAW ON NUTRITIVE VALUE, PHENOLIC COMPOUND AND ACTIVITY OF RUMEN BACTERIA 3-Urea treatment
تأثير عملية الغسل والشكل الفيزيائي لتبن الشعير المعامل كيميائياً في قيمته الغذائيه و تركيز المركبات الفينوليه وفعالية بكتريا الكرش3- المعاملة باليوريا

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الخلاصة

The objective of this experiment was to study the effect of washing chopped and ground barley straw treated with urea solution (equivalent to supply 3.3 nitrogen in dry matter basis ) on chemical composition , in vitro digestibility , phenolic compound concentration and number of aerobic and an aerobic bacteria, by using 2x2x2 factorial arrangement of treatments. The results indicated that urea treatment significantly increased total N content, cellulose and organic matter (OM) digestibility and phenolic compound concentration, with significantly reduction in hemi cellulose and lignin as compared with untreated straw. Rumen liquor of in vitro experiment indicated a significantly increased in ammonia N and pH value for urea treated straw as compared with untreated; However, no differences were shown in rumen liquor content of treated and untreated straw in phenolic compound concentration ,aerobic and an aerobic bacteria. Washed treated straw highly increased OM, aerobic and anaerobic bacteria and highly reduced the content of total N and phenolic compound concentration as compared with un washed treated straw. Rumen liquor of invitro experiment indicated that washing of treated straw significantly reduced phenolic compound concentration in rumen liquor as compared with UN washed treated straw. The effect of physical form on urea treatment indicated that chopped straw treated with urea significantly reduced OM content as compared with ground straw. The recommendation was to study quality and quantity of phenolics which produced after treated straw with urea and sodium hydroxide.

الكلمات الدلالية


Article
LAMBS RESPONSES TO DIETARY SUPPLEMENT OF RUMEN UNDEGRADABLE NITROGEN AS AFFECTED BY NIGELLA SATIVA FEED ADDITIVES
استجابه الحملان الكراديه لنتروجين الغذاء غير المتحلل في الكرش باستخدام الحبه السوداء كأضافات غذائيه

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الخلاصة

The effect of two levels of rumen undegradable nitrogen (7 and 10 g UDN / kg DM ) and two levels of Nigella sativa (0 and 7.5 g NS / kg DM) upon live-weight gain ,feed conversion ratio and some blood parameters were investigated in a 2x2 factorial experiment . Twenty four individual Karadi male lambs were used .They were weighing approximately 34+1.22 kg and 7 months of age. Two lambs were randomly allocated from each diet in order to determine some blood parameters. There were no differences among diets in daily DM,OM,ME, RDN, NDF,ADF, lignin, hemicellulose and cellulose intake when expressed as g/day or g/kg W0.75. The live weight gain and feed conversion ratio differences were not significantly affected by increased level of UDN ., However, live weight gain and FCR were significantly improved with those lambs fed with high UDN diet supplemented with NS as compared with those fed diets without NS . Lambs fed high level of UDN significantly reduced blood sugar (BS) and increase blood urea nitrogen (BUN) as compared with those fed low level of UDN. Whereas ,level of UDN had no effect on serum uric acid (SUA) and growth hormone (H ). The results also indicated that the lambs fed diets supplemented with NS significantly increased BS,SUA and GH and reduced BUN as compared with those fed diets without NS .It was concluded that higher responses to NS additives was associated with higher level of UDN .We recommend that 7.5 g NS and 10 g UDN achieved butter live weight gain and feed conversion ratio .

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