مجلة القادسية للعلوم الزراعية المجلد / 5 العدد /1 السنة 7115 تأثري فرتة اإلضاءة يف إنتاج احلليب ومكوناته وبعض معايري الدم لدى النعاج العواسية
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1 مجلة القادسية للعلوم الزراعية المجلد / 5 العدد / السنة 75 تأثري فرتة اإلضاءة يف إنتاج احلليب ومكوناته وبعض معايري الدم لدى النعاج العواسية احملسنة E.mail :natikalkudsi@yahoo.co.uk تاريخ استالم البحث 74// تاريخ قبول النشر 74/6/7 الخالصة ± 346.3) 0.7 ± ± الكلمات المفتاح : أغنام عواسية محسنة إضاءة إنتاج الحليب Niswender 66 Rollag Kennaway 6 املقدمة 976 Niswender Rollag Woodfill Svennersten-Sjaunja Olsson (short days mrna 5
2 مجلة القادسية للعلوم الزراعية المجلد / 5 العدد / السنة 75 Auchtung 997) Pulina, Bencini Dahl ) املوا ور ائق العمل Dahl. / 0 / 0 / Pulina Bencin Ortavant 6 Pollott Gootwin Polotte Gootwine Lindsay 6
3 مجلة القادسية للعلوم الزراعية المجلد / 5 العدد / السنة Lincoln 000 Clarke ) Albumin Total protein Globulins (Cholesterol) Triglyceride IGF CRD SAS Yi j = + ti + eij Morrissey Yij Ti Mikolayunas Б e Eij 0 Hamadeh 00 واملناقشة النتائج ±
4 مجلة القادسية للعلوم الزراعية المجلد / 5 العدد / السنة Garcia Barash Swanson Marcekand Caja Bocquier 6.07) Mikolayunas Auchtung 0 Miller Mikolayunas \نعجة( جدول )( تأثير فترة اإلضاءة على كمية الحليب المنتج )غم \ يوم a 6 ± 0 a 0.0 ± a 0.67 ± a 40.6 ± ± 65.0 a ± 5.0 a ± a 4.67 ± a ± 9.0 a 6.36 ± 57.0 a ± 49.0 a ± 36.0
5 مجلة القادسية للعلوم الزراعية المجلد / 5 العدد / السنة 75 a 0.9 ± b 0.7 ± 36.0 b 9.0 ± a ± a ±.75 a 06 0 a 0.67 ± a 5.67 ± a 7.77±40.00 a 5.56 ± 3.75 a 3.67 ± a 73.9± ± 6600± 0 0 ± P < 0.05 ) الحليب جدول) 7 ( تأثير فترة اإلضاءة على نسبة الدهن )%( في a ± 6. a.54 ±.337 a 0.375± a 0.65 ± 7.55 a 0.50 ± 7.3 a.9 ± 7.53 a 0.47 ± 7.50 ab 0.575±7.043 b 0.6 ± a 0.4 ± 7.43 a 0.357± 6.6 a 0.39 ± 7.06 b 0.40 ± 6. a 0.46 ± 7.47 ab 0.7± 6.97 a 0.46 ± 6.07 ab 0.4 ± 5.3 b 0.44 ± 4.63 a 0.76 ± 6.30 a ± 6.35 a 0.67 ± 6.44 a ± 5.36 a ± 5.3 a ± 4.5 ±06 ± 0 ± 00 P < 0.05 ) الحليب جدول) ( تأثير فترة اإلضاءة على نسبة البروتين )% ) في a 0.03±3.673 a 0.03±3.75 a 0.04±3.77 a 0.040±3.74 a 0.045±3.6 a 0.0±3.77 b 0.030±3.790 a 0.4±4.060 b 0.056±3.79 a 0.033±3.763 a 0.05±3.7 a 0.046±3.75 a 0.3±3.35 a 0.07±4.03 a 0.044±3. a 0.3±3.95 a 0.07±4.03 a 0.064±3.97 a 0.±3.06 a 0.37±3.90 a 0.095±3.796 a 0.063±3.073 a 0.06±4.036 a 0.043±3.746 ±06 6± ± 00 P < 0.05 )
6 مجلة القادسية للعلوم الزراعية المجلد / 5 العدد / السنة 75 القياس المجاميع األول جدول) ( تأثير فترة اإلضاءة على نسبة الالكتوز) % ) في الحليب الثانية الثالثة )4 ساعة إضاءة ( ساعة إضاءة 4 ظالم ) 6 ظالم ) األولى) 7 ساعة إضاءة( )المتوسط±الخطأ القياسي( )المتوسط ± الخطأ القياسي( )المتوسط ±الخطأ القياسي( a 0.055±5.470 a 0.047±5.57 a 0.070±5.543 a 0.059±5.575 a 0.65±5.565 a 0.7±5.6 a 0.037±5.653 a 0.40±5.94 a 0.04±5.647 a 0.049±5.67 a 0.077±5.745 a 0.070±5.63 a 0.045±5.74 a 0.0±5.63 a 0.067±5.65 a 0.047±5.49 a 0.03±6.07 a 0.09±5.94 a 0.63±5.66 a 0.4±5.66 a 0.4±5.653 a 0.3±5.946 a 0.09±6.00 a 0.057±5.56 الثاني الثالث الرابع الخامس السادس السابع الثامن 9 ± ± ± المتوسط العام 3944 P < 0.05 ) a 0.0±9.96 a 0.06±0.7 a 0.35±0.076 a 0.0±0.57 a 0.3±0.36 a 0.5±0.43 a 0.067±0.30 a 0.5±0.66 a 0.53±0.43 a 0.09±0.5 a 0.30±0.49 a 0.7±0. a 0.077±0.43 a 0.49±0.6 a 0.4±0.34 a 0.05±0.649 a 0.94±0.94 a 0.79±0.5 a 0.057±0.37 a 0.34±0.74 a 0.59±0.97 a 0.69±0.766 a 0.9±0.97 b 0.7±0.76 ± 06± 0 ± 0 P < 0.05 ) 6 Piccione 7
7 مجلة القادسية للعلوم الزراعية المجلد / 5 العدد / السنة 75 Cornisana جدول) 4 ( تأثير فترة اإلضاءة على بعض المعايير الدمية بداية التجربة ± ± ± 0.37 ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± Total protein Albumin Globulins Cholesterol Triglyceride جدول )5( تأثير فترة اإلضاءة على بعض المعايير الدمية وسط التجربة ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± 4.75 Total protein Albumin Globulins Cholesterol Triglyceride نهاية التجربة تأثير فترة اإلضاءة على بعض المعايير الدمية 0.3 ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± 4.50 جدول )6( Total protein Albumin Globulins Cholesterol Triglyceride
8 مجلة القادسية للعلوم الزراعية المجلد / 5 العدد / السنة 75 effects on dairy cattle: A review. J. Dairy Sci. 3: 5. Dahl, G.E. Photoperiodic Manipulation of Lactation in Dairy Cattle. University of Illinois at Urbana-Champaign, riod/. Dahi,G.E..S.Tao and Thpmpson. 0.Effects of photoperiod on mammary gland development and lactation. J.Anim.Sci.90: Duncan,B.C.955.multiple ranse and multiple F-test. Biometrics,:-4. Gootwine,E., and G.E. Pollett.000. Factor affecting milk production in improved Awassi dairy ewe s.animal Sci.7: Garcia-Hernandez, R. G. Newton,S.Horner,,Lou Nuti, Effect of photoperiod on milk yield and quality, and reproduction in dairy goats. Livestock Science Hamadeh, S. K., E. Barbour, M. Abi Said, K. Daadaa, and C. G. Tarraf. 99. Reproductive performance, progesterone serum, and milk production in spring postpartum Awassi and Finn Texel Awassi ewes. J. Agric. Sci. 3: Kennaway, D. J., R. G. FritFrith, G. Phillipou, C. D. Mathews and R. F. Seamark A specific radioimmunoassay for melatonin in biological tissue and fluids and its validation by 0 0 املصا ر. Auchtung, T. L., A. G. Rius, P. E. Kendall, T. B. McFadden, and G. E. Dahl. 005.Effects of photoperiod during the dry period on prolactin, prolactin receptor, and milk production of dairy cows. J. Dairy Sci. : 7. Barash, H., Silanikove, N., Shamay, A., Ezrat, E., 00. Interrelationships among ambient temperature, day length, and milk yield in dairy cows under a Mediterranean climate. Bencini, R., and G. Pulina The quality of sheep milk: A review. Aust. J. Exp. Agric. 37: Bocquier, F., Bonnet, M., Faulconnier, Y., Guerre-Milo, M., Martin, P., Chilliard, Y., 99. Effects of photoperiod and feeding adipose tissue metabolic activity and leptin synthesis in the sheep. Rep. Nut. Dev. 3, Dahl, G. E., B. A. Buchanan, and H. A. Tucker Photoperiodic
9 مجلة القادسية للعلوم الزراعية المجلد / 5 العدد / السنة 75 Nail. 9. Seasonality of reproduction in sheep and its control by photoperiod. Aust. J. Biol. Sci. 4:69 5. Piccione Giuseppe ; Fortunata Grasso, Alessandro Zumbo Selected biochemical serum parameters in ewes during pregnancy, postparturition, lactation and dry period. Animal Science Papers and Reports vol. 7 (4), Pollott, G. E., and E. Gootwine Reproduction performance and milk production of Ass af sheep in an intensive management system.j. Dairy Sci 7 : Rollag, M. D. and G. D. Niswender Radioimmunoassay of serum concentrations of rnelatonin in sheep exposed to different lighting regimens Endocrinology 9:4. SAS Institute SAS/STAT Software, Release SAS Inst., Inc., Cary, NC Svennersten Sjaunja K., and K. Olsson Endocrinology of milk production Domest. Anim. Endocrinal. 9 : 4 5. Woodfill, C. J. I., N. L. Wayne, S. M. Moenter, and F. J. Karsch periodic synchronization of a circannual rhythm of sheep: Identification of seasonspecific time cues. Biol. Reprod. 50: gas chromatography-mass spectrometry. Endocrinology 0: 9. Lincoln, G. A., and I. J. Clarke Role of the pituitary gland of the development of photoefractorines and generation of long term change in prolactin secretion in rams. Biol. Repord. 6 : Lindsay, D. R., and J. Skerritt Improved breeding for dairy goats and milking sheep: Guidelines for the development of national breeding plans. Rural Ind. Res. Dev. Corp. Publ. No. /50. CanPrint Communications, Fyshwick, Australia Marcek, J.M., Swanson, V., 94. Effect of photoperiod on milk production and prolactin of Holstein dairy cows. J. Dairy Sci. 67, Morrissey, A. D., A. W. N. Cameron, and A. J. Tilbrook.00.Artificial Lighting During Winter Increases Milk Yield in Dairy Ewes. J. Dairy Sci. 9: Mikolayunas, C. M ; D. L. Thomas, G. E. Dahl, T. F. Gressley, and Y. M. Berger.00. Effect of Prepartum Photoperiod on Milk Production and Prolactin Concentration of Dairy Ewes. J. Dairy Sci. 9:5 90. Ortavant, R., F. Bocquier, J. Pelletier, J. P. Ravault, J. Thimonier, and P. Volland- 3
10 مجلة القادسية للعلوم الزراعية المجلد / 5 العدد / السنة 75 The Effect of Photoperiod on Milk Production, Its Components and Some Blood Parameters in Improved Awassi ewes Natik H. AL-Kudsi college of Agriculture / University of Baghdad S. A. Taha N.Y. Aboo M. N. Abdullah Agriculture of Researches / Ministry of Agriculture/Iraq Abstract : This study is carried out to investigate the effect of the light period on milk yield and its components as well as on some blood parameters, in Alrashiedia Animal Farm, Directorate of Agricultural Researches, Ministry of Agriculture on 4 improved Awassi ewes in nd and 3 rd lactation from 0//0 to 9//0. The ewes are randomly divided into 3 groups; st group is 4h:0 h. (light : dark) exposed to light period, the nd h:6 h. of light period, while 3 rd group 6h: h.. All ewes allocated on the same concentrate and roughages ration in addition to 5 kg / hd / day green alfalfa. Milk yield is recorded every 0 days after separation of suckling lambs from their mothers for hours (9 pm to 9 am). Blood sample are taken three time (at the begging, Middle and end of the study) to calculate : total protein, albumin, globulins, cholesterol, and triglyceride. The results show that there is no significant effect of light period on milk production, the total amount of milk through the recorded periods for the three group are 065.0,0.0 and 96.7gm/hd.There is no significant effect on the milk component. The blood parameters are not affected by the light :dark change. It can be concluded that the change in the light :dark period does not alter milk yield and some blood parameters in this study. Keywords: Improved Awassi Sheep, Photoperiod, Milk Production 4
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