ISSN: 1813-0410

Keywords : Weight


The Effect of Adding Dry Bread to the Fattening Ration of Local Kids in Increasing Weight and Body Measurements

journal of kerbala university, Volume 14, Issue 1, Pages 74-78

Three different rations of dry bread were used in this study: 9%, 12% and 15% for three fattening periods: 1-45 days, 1-90 days, and 1- 135 days. Results showed that there was a significant difference in the average of body weight when the percentage of the three rations of dried bread was changed. Third group (15% dried bread) significantly (P≤0.05) through fattening period of 1- 90 days for the average weight gain in comparison to other groups. A significant difference (P≤0.05) in the median weight of the goats at the fattening period of 1-135 days, while 1-90 days fattening period recorded a median weight equal to 29.607kg and minimum fattening period of 1-45 days was recorded a median of 27.865 kg. Height of the body has a high significant effect (P≤0.01) at level 15% dry bread in comparison with the other rations.
Additionally statistical analysis pointed out a differences (P≤0.05) of fattening period 1-135 days on the characteristics of the kids body (chest, size and height of buttock and length of body) sizes in comparing with other fattening periods. A high significant difference (P≤0.05)during the fattening period of 1- 135 days to body measurements represented by abdomen and height at front in comparison to the two previously mentioned characteristics for fattening periods

EXPERIMENTAL STUDY OF BEHAVIOR OF REINFORCED CONCRETE SLABS UNDER IMPACT LOADING

Ali G. Abbas AL-Khafaji; Adnan F. Ali

journal of kerbala university, Volume 10, Issue 2, Pages 238-252

An experimental program to study the behavior of reinforced concrete slabs under impact loading was carried out through this work . Experimental work included testing of fifteen two-way reinforced concrete slabs , three of which were tested under central concentrated static loads while the others were tested under impact loading by means of a falling mass at the center of the slab .A steel ball of (90mm) diameter and (3 kg) weight was used as a falling mass for all the impact tests.
The main test variables in this study were: dimensions of the slabs , reinforcement ratio, height of fall of the striking object and support conditions of the slab. The maximum transient and residual central deflections were measured in each impact test using linear variable differential transformer(LVDT).It was found that the central deflections are proportional to the height of fall of the striker at low heights(less than 600 mm)for all tested slabs under impact loads. These deflections were found to be much larger with a slight increase in height of fall of the striker ( almost a double value of deflections was noticed at an increase in fall of less than 25 % beyond 600 mm height of fall ). Also ,it was found that , with the repetition of strikes and as the falling height of the striking object increases , cracks at the bottom faces of all slabs starts prior to those at the top face . However , cracks do not propagate longitudinally or widen with the increase of heights of falls but rather scabbing of the concrete starts to form with large pieces of concrete scabbs out at larger drop height .