Effect of Partial Replacement of Total Mixed Ration by Treated Olive Cake on Sheep Productive Performance /
تأثير الاستبدال الجزئي لمخلوط العليقة الكلية بتفل الزيتون المعامل على الأداء الإنتاجي للأغنام
By Mohamed Abdelaal Mahmoud Abdellatef; Under the Supervision of Dr. Mohamed Sayed Farghaly, Dr. Mohamed Ahmed Hanafy, Dr. Mohammed Hassan Mohammed Bakr
- 69 pages : illustrations ; 25 cm. + CD.
Thesis (M.Sc.)-Cairo University, 2024.
Bibliography: pages 55-69.
This experiment aimed to study the effect of partial replacement of total mixed ration (TMR) by treated olive cake on the productive performance of sheep in terms of digestion parameters, nutritional values and some measurements of rumen and blood characteristics, as well as the effect of olive cake on growth rates and feed conversion, as well as the study of the economic study. This study consisted of two expermints: The first expermint: a pilot experiment to study the digestion parameters and the nutritional values of five rations (TMR) as follows: the first ration (control ration), which consisted of 26 % crushed yellow corn, 20% undecoraticted cottonseed meal, 20% wheat bran, 20% Egyptian clover hay, 10% rice straw and 4% additives. The second ration, which was a tested ration, consisted of 26% crushed yellow corn, 20% crushed olive cake 15% undecoraticted cottonseed meal, 15% wheat bran, 15% Egyptian clover hay, 4% additives, 3% rice straw, 2% soybean meal. (44% protein) and without polyethylene glycol, the third ration is like the second TMR, but with polyethylene glycol at a rate of 0.2% from the addition of crashed olive cake, while the fourth ration is like the second ration, but with using milled olive cake, and the fifth ration is like the fourth with polyethylene glycol. The results showed a decrease in the digestibility of dry matter and organic matter, crude protein, crude, fat, nitrogen-free extract, ADF and NDF, cellulose and hemicellulose in the tested groups compared to the control, but the best groups were the fourth and fifth. The fiber digestion coefficient improved in the fifth group with a result close to the fourth, so the fourth group is the best nutritionally and economically. The second expermint: a growth experiment, three groups of Barki lambs were carried out as follows: The first group fed on the previous comparison ration. The second group fed on the previous experimental ration No. 4 without the addition of fibrolytic enzymes. The third group: fed on the previously tested ration No. 4 with the addition of fibrolytic enzymes at a rate of 0.2% of the amount of olive cake used. Randomly divided 18 Barki lambs (with an average weight of 29 ± 5 kg and 9 months old) into three groups (6 lambs/group) and were fed on the production needs of the previous total ration in a 90-days growth experiment According to NRC2007 for sheep. The results showed that The third group performed better in terms of feed conversion ratio and economic efficiency than the control group, but there was no significant influence on rumen measures or blood parameters. Animals fed rations containing milled olive cake with the addition of fibrolytic enzymes had high nutrionally and economically performance compared to other rations, with the exception of the control group, which was nutritionally superior without negative effects on productive performance or animal health تهدف هذه الدراسة الي تقييم تأثير الإحلال الجزئي لمخلوط العليقة الكلية بتفل الزيتون على الأداء الإنتاجي للأغنام من حيث: معاملات الهضم والقيمة الغذائية وبعض قياسات الكرش، الدم، معدلات النمو، التحويل الغذائي والكفاءة الاقتصادية. شملت الدراسة تجربتين وكانت نتائج معدل التحويل الغذائي والكفاءة الاقتصادية اعلي في المجموعة الثالثة مقارنة بمجموعة المقارنة ولم يكن هناك تأثير معنوي على قياسات الكرش ومقاييس الدم. بناء على ما سبق، أظهرت النتائج تحسنا في استفادة الحيوانات المغذاة على علائق تحتوي على تفل الزيتون المطحون مع اضافة الانزيمات المحللة للألياف بالمقارنة بالعلائق المختبرة الأخرى