Effect of energy level on digestion coefficients and performance of ewes during pregnancy and lactation in Southern Sinai
Abdou, Ahlam R.
Effect of energy level on digestion coefficients and performance of ewes during pregnancy and lactation in Southern Sinai [electronic resource]. تأثير مستوى الطاقة على معاملات الهضم وأداء النعاج خلال فترة الحمل والرضاعة فى جنوب سيناء. - p.349-358.
Includes references.
Sixty adult Barki ewes (3-4) years old and averaged 46.7±1.77 Kg live body weight) were used to study the effect of energy level on digestion coefficients and performance of ewes during pregnancy and lactation stages. Animals were assigned into three equal group (20 each) received one of the three level of energy 80,100 and 120% TDN respectively according to NRC (1985). Feeding trails during early pregnancy (3 months after mating). late pregnancy (last 2 months before lambing), early lactation (1St month) after parturition and late lactation period for complete evaluation of nutritive value and digestion coefficient. Voluntary feed intake, chemical composition has been carried out. Milk production and productive trails were estimated. The main result showed that the DM intake was increased (p<0.01) with high energy level (120 and 100% TDN) than low energy level (80% TDN). The animal group fed 80% TDN level (R1)-recorded the highest digestibility coefficients for DM, OM,CP, EE NFE and nitrogen balance followed by 120 and 100% TDN level (R3 and R2) respectively.
Summary in Arabic.
Ewes--Feeding and feeds.
Ewes--Pregnancy.
Ewes--Productivity.
Ewes--Reproduction.
Sheep--Milk yield.
Effect of energy level on digestion coefficients and performance of ewes during pregnancy and lactation in Southern Sinai [electronic resource]. تأثير مستوى الطاقة على معاملات الهضم وأداء النعاج خلال فترة الحمل والرضاعة فى جنوب سيناء. - p.349-358.
Includes references.
Sixty adult Barki ewes (3-4) years old and averaged 46.7±1.77 Kg live body weight) were used to study the effect of energy level on digestion coefficients and performance of ewes during pregnancy and lactation stages. Animals were assigned into three equal group (20 each) received one of the three level of energy 80,100 and 120% TDN respectively according to NRC (1985). Feeding trails during early pregnancy (3 months after mating). late pregnancy (last 2 months before lambing), early lactation (1St month) after parturition and late lactation period for complete evaluation of nutritive value and digestion coefficient. Voluntary feed intake, chemical composition has been carried out. Milk production and productive trails were estimated. The main result showed that the DM intake was increased (p<0.01) with high energy level (120 and 100% TDN) than low energy level (80% TDN). The animal group fed 80% TDN level (R1)-recorded the highest digestibility coefficients for DM, OM,CP, EE NFE and nitrogen balance followed by 120 and 100% TDN level (R3 and R2) respectively.
Summary in Arabic.
Ewes--Feeding and feeds.
Ewes--Pregnancy.
Ewes--Productivity.
Ewes--Reproduction.
Sheep--Milk yield.