scholarly journals Feed Intake Response to Changes in Environmental Temperature and Dietary Energy in Roosters

1974 ◽  
Vol 53 (3) ◽  
pp. 1043-1052 ◽  
Author(s):  
Malik M. Ahmad ◽  
F.B. Mather ◽  
Earl W. Gleaves
Keyword(s):  
Feed Intake ◽  
Environmental Temperature ◽  
Dietary Energy

scholarly journals Using different levels of energy and protein and their effects on bodyweight and blood chemistry of ostriches

2021 ◽  
Author(s):  
Tahereh Nikravesh-Masouleh ◽  
Alireza Seidavi ◽  
Magdalena Solka ◽  
Mohammad Dadashbeiki
Keyword(s):  
Weight Gain ◽  
Total Cholesterol ◽  
Feed Intake ◽  
Experimental Period ◽  
Blood Chemistry ◽  
Blood Parameters ◽  
Bodyweight Gain ◽  
Transferase Activity ◽  
Dietary Energy ◽  
Protein Levels

AbstractTo determine the effect of different dietary energy and protein levels on bodyweight and blood chemistry, 36 ostriches at 2 to 9 weeks of age for feeding conditions and 18 for blood chemistry parameters was used. The birds were divided into six treatment groups. Energy and protein levels of diet were 2400 and 2600 kcal/kg and 20%, 22%, and 24%, respectively. The feed intake and bodyweight gain were determined a weekly. Blood chemical parameters including glucose, HDL, LDL, total cholesterol, triglycerides, total protein, albumin, globulin, aspartate amino-transferase and alanine amino-transferase activity were determined. The highest weight gain during the whole experiment was observed in ostriches offered 2400 kcal · kg−1 dietary energy and 20% protein. The lowest level of total cholesterol and protein was observed in treatment V (2600 kcal · kg−1 dietary energy and 22% protein). The lowest level of glucose and triglycerides was noted after treatment I. The highest albumin and globulin concentrations were in treatment III (2400 kcal · kg−1 dietary energy and 24% protein) and treatment II (2400 kcal · kg−1 dietary energy and 22% protein), respectively. The energy level had no effect (P < 0.05) on feed intake and weight gain in all experimental period. The results of this study showed that with increasing energy and protein levels, most blood parameters increased in ostriches but total cholesterol did not.

AN EVALUATION OF THE RELATIONSHIPS BETWEEN DIETARY PARAMETERS AND RUMEN LIQUID TURNOVER RATE

1981 ◽  
Vol 61 (1) ◽  
pp. 91-96 ◽  
Author(s):  
ESSI EVANS
Keyword(s):  
Feed Intake ◽  
Turnover Rate ◽  
Energy Content ◽  
Energy Concentration ◽  
Dietary Energy ◽  
Regression Analyses ◽  
Turnover Rates ◽  
Independent Variables ◽  
Independent Variable ◽  
Ration Composition

Data were accumulated from published sources and were combined in order to estimate the effects of level of feed intake, dietary energy concentration, energy intake level and dietary forage percentage on rumen liquid turnover rates in sheep and cattle. The effects of the dietary parameters on liquid turnover rates were estimated by regression analysis, where all possible combinations of independent variables were considered. It was found that rumen liquid turnover rates increased (P < 0.05) as feed intake increased with both sheep (r = 0.610) and cattle (r = 0.715). From multiple regression analyses it was learned that the inclusion of independent variables that were related to the physical composition of the diet along with variables for intake improved the estimation of liquid turnover rates, although the independent variable related to ration composition differed between sheep and cattle. With data from sheep experiments, elevations in the digestible energy content of the diet depressed (P < 0.05) liquid turnover rate. Based upon data from cattle, decreases in the forage portion of the diet had a similar depressing (P < 0.05) effect.

The effect of ambient temperature on feed intake and diet selection in growing lambs

1992 ◽  
Vol 1992 ◽  
pp. 166-166
Author(s):  
M.R. Cropper ◽  
D.P. Poppi
Keyword(s):  
Ambient Temperature ◽  
Protein Content ◽  
Feed Intake ◽  
Free Choice ◽  
Environmental Temperature ◽  
Diet Selection ◽  
High Ambient Temperature

Lambs are known to change their feed intake in relation to environmental temperature (Blaxter, 1962). However, their ability to select a non-limiting diet, when free-choice fed, has only been investigated in a thermoneutral environment (Cropper, 1987). The aim of this experiment was to test the idea that, at low and high ambient temperature, (a) feed intake would increase in the cold and decrease in the hot, relative to a thermoneutral control, and that (b) the protein content of the diet selected would be lower and higher respectively.

Effects of environmental temperature and dietary energy on energy partitioning coefficients of female broiler breeders1

2015 ◽  
Vol 93 (10) ◽  
pp. 4734-4741 ◽  
Author(s):  
A. Pishnamazi ◽  
R. A. Renema ◽  
D. C. Paul ◽  
I. I. Wenger ◽  
M. J. Zuidhof
Keyword(s):  
Environmental Temperature ◽  
Energy Partitioning ◽  
Dietary Energy ◽  
Partitioning Coefficients

scholarly journals The Effects of Environmental Temperature, Sex, and Dietary Energy Levels on Growth Performance of Large White Turkeys

1978 ◽  
Vol 57 (2) ◽  
pp. 353-362 ◽  
Author(s):  
KLAUS de ALBUQUERQUE ◽  
A.T. LEIGHTON ◽  
J.P. MASON ◽  
L.M. POTTER
Keyword(s):  
Growth Performance ◽  
Environmental Temperature ◽  
Energy Levels ◽  
Dietary Energy ◽  
Large White
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