| Titles |
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English :
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Effect of feeding different levels of calcium salts of fatty acids on digestibility, body dimension and carcass characteristics of fattening buffalo bulls
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Arabic :
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تأثير تغذية مستويات مختلفة من الدهن الكالسيومى على المهضوم و ابعاد الجسم و مواصفات الذبيحة لعجول التسمين الجاموسى
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| Abstract |
Eighteen buffalo bulls were allotted into three similar groups. Three concentrate feed mixture were formulated to replace Calcium salts of fatty acids (Ca-SF A) instead of corn grain as 0, 25 and 50% on basis 'of energy content then distributed to three animal groups. All groups received berseem hay and rice straw. Acid ether extract (AEE) and total fatty acids (TFA's) were higher with high level of Ca-SFA. Adding Ca-SF A significantly (P<0.05) improved meat yield kg as level of fat intake was higher. Intake of DM, TDN and DCP kg per kg meat gain was slightly more efficient when feeding with different levels of Ca-SFA. Digestion coefficient of AEE was significantly higher (P<0.05) with supplemented Ca-SF A, while digestibilities of crude protein (CP), crude fiber (CF) and nitrogen free extract (NFE) didn't affected by fat supplemented. The values of TDN kg and DCP didn't significantly differ among the tested groups.
No significant (P>0.05) differences were found among treatments for body dimension. Both levels of Ca-SF A didn't significantly (p>0.05) affect fasting, empty body weight and carcass weight compared to the control one. Rump round, neck and hot carcass were significantly higher (P<0.05) with 50% level of Ca-SFA compared to the control one, while there was no significant difference (P>0.05) between both levels of Ca-SFA. A. No significant differences were observed for dressing values among treatments. Amount of meat for hind and fore right and hind left quarters were significantly higher (p<0.05) with feeding on Ca-SFA. Kidney fat and liver weight were significantly higher (p<0.05) when fed ration containing Ca-SFA than that on the control ration, except the average of liver weight for that group received ration containing 25% Ca-SFA level. Color intensity of fresh muscle, area, depth of longissimus dorsi muscle and fat content of muscles of 9, 10, and 11th ribs were significantly higher (P<0.05) with added 25 and 50% levels of Ca-SFA compared to the control. Chemical composition of CP, lipids, NFE and ash for longissimus dorsi muscle didn't significantly (P>0.05) affected with feeding Ca-SF A, while DM was significantly (p<0.05) higher with feed Ca-SF A compared to the control. There was a preferential deposition of more unsaturated fatty acids in the subcutaneous adipose tissues in groups fed on Ca-SFA and linoleic acid. The unsaturated fatty acid content of longissimus dorsi muscle was less than that in subcutaneous adipose tissues when fed on Ca-SFA diet. The correlations found between body weight and other traits of body dimensions were higher than these correlations between Hot carcass (HC) and Abdominal girth (A G), Hot carcass (HC) and Highet at withers (HW), Heart girth (HG) and Abdominal girth (AG) also Heart girth (HG) and Highet at withers (HW).
Its concluded that, adding Ca-SFA in finishing period of buffalo bulls might be improved carcass quality and meat gain efficiency.
Keywords: Buffalo bulls, calcium salts of fatty acids(Ca-SFA), Digestibility, body dimensions and carcass traits.
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| Publication year |
2008
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| Pages |
171-187
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| Availability location |
معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى - الجيزة
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| Availability number |
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| Organization Name |
Animal Production Research Institute (APRI)
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| serial title |
Egyptian Journal of Animal Production
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| ISSN |
0302-4520
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| Author(s) from ARC |
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| Agris Categories |
Animal feedingAnimal physiology - Nutrition
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AGROVOC
TERMS |
Bulls.
Carcass composition.
Digestibility.
Fatty acids.
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| Proposed Agrovoc |
calcium salts;body dimension;Buffalo bulls;
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| Publication Type |
Journal
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