scholarly journals Effects of level of brackish water on feed intake, digestion, heat energy, and blood constituents of growing Boer and Spanish goat wethers1

2016 ◽  
Vol 94 (9) ◽  
pp. 3864-3874 ◽  
Author(s):  
Y. Tsukahara ◽  
R. Puchala ◽  
T. Sahlu ◽  
A. L. Goetsch
Keyword(s):  
Feed Intake ◽  
Brackish Water ◽  
Heat Energy ◽  
Blood Constituents ◽  
Spanish Goat

The effect of feed intake on nutrient and hormone levels in jugular and portal blood in goats

1981 ◽  
Vol 96 (3) ◽  
pp. 643-657 ◽  
Author(s):  
A. de Jong
Keyword(s):  
Feed Intake ◽  
General Circulation ◽  
Volatile Fatty Acids ◽  
Jugular Vein ◽  
Insulin Response ◽  
Feed Consumption ◽  
Base Line ◽  
Physiological Control ◽  
Blood Constituents ◽  
Rule Changes

SUMMARYAdult goats provided with permanent jugular and portal vein catheters were used to study the effect of feeding hay and concentrates on blood composition in order to determine which blood constituents might act as signals in the control of feed intake. Animals were fed limited amounts of feed, or were allowed to eat unlimited amounts for restricted periods, once or twice daily. Blood samples were collected at hourly intervals up to 9 h after feeding and often more frequently in the initial hour, and were analysed for volatile fatty acids (VFA), lactate, glucose, insulin and glucagon.Feed consumption resulted in rapid and large increments of jugular blood acetate, propionate,n-butyrate and 3-methylbutyrate concentrations whereas isobutyrate and 2-methylbutyrate increased only slightly. Jugular propionate,n–butyrate and 3–methyl–butyrate increased within 10 min and acetate within 20 min after feed was offered, both when hay and when concentrates were eaten. Fasting decreased circulating VFA to very low values. As a rule changes of portal VFA paralleled those in the general circulation although both the concentrations and the changes were much greater. Plasma lactate increased within 30 min on a concentrate diet but not at all on a hay diet.Blood glucose declined in the initial hour after feeding and subsequently increased, resulting in a more or less elevated plateau. In some but not all experiments glucose declined before feed consumption, probably owing to ‘anticipation’. Circulating plasma insulin and glucagon appeared to increase slightly, if at all, after feeding. Increased feed intake was reflected in higher base line glucose and insulin concentrations in the jugular vein but the jugular glucose and insulin response to feed consumption was unaffected. Jugular glucagon was not influenced by the amount of feed. Jugular insulin and glucagon sometimes showed a brief peak during eating. Portal glucose, insulin and glucagon gave essentially the same pattern as seen in the jugular vein.In conclusion, it appears that, of the substances studied, acetate, propionate, nbutyrate and 3-methylbutyrate are most suited for the function of feedback signals in the physiological control of feed intake in goats under the conditions of the present experiment. It seems less probable that glucose, insulin and glucagon can play such a role.

scholarly journals Response of slow-growing chickens to feed restriction and effects on growth performance, blood constituents and immune markers

2017 ◽  
Vol 8 (2) ◽  
pp. 175 ◽  
Author(s):  
Youssef A Attia ◽  
Abd-Elhamid E Abd-Elhamid ◽  
Manal Mustafa ◽  
Mohammed A Al-Harthi ◽  
Mai Muhammad
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Blood Cells ◽  
Feed Restriction ◽  
Control Group ◽  
Immune Markers ◽  
Blood Constituents ◽  
Commercial Diet ◽  
Ad Libitum ◽  
Slow Growing

An experiment was conducted to study the response of a slow growing chickens breed “Sinai” to feed restriction (FR) and the effects on growth performance, blood constituents and immune markers using a total number of 60 unsexed 7-d-old chicks. Chickens were housed in battery brooders during d 1 to 35 of age and randomly distributed keeping similar initial body weight, in two FR treatment groups. During 0-6 d of age, chickens were fed ad libitum, a mash commercial diet. During d 7-14 of age, chickens were fed either 100 or 80 % of the daily amount of feed consumed by the control group during the previous day. From d 15 to d 35, chickens were fed ad libitum diets a mash commercial diet. At the end of the experiment, body weight gain on the FR regimen was significantly lower than that of the control group, but feed intake and feed conversion ratio (FCR) were not affected. In addition, red blood cells parameters and white blood cells traits were not negatively affected. However, hemagglutination inhibition titter for New castle disease virus, monocyte and total cholesterol were significantly decreased by FR regimen, but blood plasma albumin and immunoglobulin A significantly increased. In conclusion, slow growing chickens could tolerate 27.2 % FR during the 2nd week of age without significant differences in feed intake and FCR for the whole period, and general health status and metabolic profiles indicating a compensatory growth during 15-35 d of age although growth was in favour to the unrestricted group. 

Effects of restricted feed intake on heat energy by different goat breeds1

2011 ◽  
Vol 89 (12) ◽  
pp. 4175-4187 ◽  
Author(s):  
A. Helal ◽  
R. Puchala ◽  
G. D. Detweiler ◽  
T. A. Gipson ◽  
T. Sahlu ◽  
...  
Keyword(s):  
Feed Intake ◽  
Heat Energy ◽  
Restricted Feed Intake

scholarly journals Effects of restricted periods of feed access on feed intake, digestion, behaviour, heat energy, and performance of Alpine goats

2018 ◽  
Vol 46 (1) ◽  
pp. 994-1003 ◽  
Author(s):  
Nhayandra C. D. Silva ◽  
Ryszard Puchala ◽  
Terry A. Gipson ◽  
Tilahun Sahlu ◽  
Arthur L. Goetsch
Keyword(s):  
Feed Intake ◽  
Heat Energy ◽  
And Performance

scholarly journals Feed Intake, Growth Performance and Blood Constituents of Growing Male West African Dwarf Goats Fed Concentrates Varying in <i>Pueraria phaseoloides</i> Leaf Meal Content

2015 ◽  
Vol 06 (08) ◽  
pp. 817-822
Author(s):  
Abel Adebayo Akingbade ◽  
Paul Shinngu ◽  
Kayode Jacob Onaleye ◽  
Aderibigbe Ezekiel Adebiyi ◽  
Christianah Adifagberu
Keyword(s):  
Growth Performance ◽  
Feed Intake ◽  
West African ◽  
Pueraria Phaseoloides ◽  
Blood Constituents ◽  
West African Dwarf ◽  
West African Dwarf Goats ◽  
Leaf Meal ◽  
Dwarf Goats
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