Estimation of voluntary feed intake from in sacco degradation and rate of passage of DM or NDF

1994 ◽  
Vol 39 (1) ◽  
pp. 49-52 ◽  
Author(s):  
T. Stensig ◽  
M.R. Weisbjerg ◽  
J. Madsen ◽  
T. Hvelplund
Keyword(s):  
Feed Intake ◽  
Voluntary Feed Intake ◽  
In Sacco

Factors affecting voluntary feed intake in pigs. II. The effect of two levels of crude fibre in the diet on the intake and performance of fattening pigs

1967 ◽  
Vol 9 (2) ◽  
pp. 149-154 ◽  
Author(s):  
D. J. A. Cole ◽  
J. E. Duckworth ◽  
W. Holmes
Keyword(s):  
Feed Intake ◽  
Live Weight ◽  
Carcass Quality ◽  
Intake Rate ◽  
Crude Fibre ◽  
Factors Affecting ◽  
Voluntary Feed Intake ◽  
And Performance ◽  
Isocaloric Diets ◽  
Fattening Pigs

1. Voluntary feed intake, performance and carcass quality were studied with 20 individually housed pigs given isocaloric diets (2,770 kcal/kg. DM) containing either 8·9 % or 12·9 % crude fibre in the dry matter over the period of growth from 45 to 91 kg. live-weight.2. There were no significant differences between diets in voluntary feed intake, rate of gain or carcass quality.3. Apparent digestibility coefficients and rates of passage of the diets were determined in eight castrated male pigs. Rates of passage were not significantly affected by diet or live-weight when determined at 57 and 82 kg. live-weight.

Effect of season and method of application of sewage sludge to grassland on the voluntary intake, digestibility of herbage and growth of weaned lambs

1997 ◽  
Vol 1997 ◽  
pp. 151-151
Author(s):  
J. Hill ◽  
J.M. Wilkinson
Keyword(s):  
Sewage Sludge ◽  
Feed Intake ◽  
Toxic Elements ◽  
Potentially Toxic Elements ◽  
Voluntary Feed Intake ◽  
Body Tissues ◽  
Voluntary Intake

Disposal of sewage sludge to grassland is likely to increase in future years as a result of legislation to control disposal to the sea (CEC, 1991) and increased production (DoE, 1993). Recent research has investigated the possible accumulation of potentially toxic elements in body tissues of lambs given diets containing known amounts of sludge (Wilkinson et al, 1996). The aim of this experiment was to study the effects of season and method of application of sludge to grassland on voluntary feed intake, digestibility and growth of lambs.

Voluntary feed intake and apparent digestibility in vivo in ponies given ad libitum access to de-hydrated grass or hay harvested from the same grass crop

1998 ◽  
Vol 1998 ◽  
pp. 131-131
Author(s):  
J. J. Hyslop ◽  
A. Bayley ◽  
A. L. Tomlinson ◽  
D. Cuddeford
Keyword(s):  
Feed Intake ◽  
Chronic Obstructive ◽  
Apparent Digestibility ◽  
Obstructive Pulmonary Disease ◽  
Respiratory Problems ◽  
Voluntary Feed Intake ◽  
Grass Hay ◽  
Ad Libitum ◽  
The Uk

De-hydrated forages are often fed to equids in the UK in place of more traditional grass hay, particularly where individual animals are known to have a sensitivity to dusty, mouldy hay which may play a part inducing respiratory problems such as chronic obstructive pulmonary disease (COPD). One such alternative forage is short-chop de-hydrated grass. However, there is very little information available on voluntary feed intake (VFI), apparent digestibility and nutrient intake parameters when de-hydrated grass is offered to equids compared with traditional grass hay. This study examines the VFI and apparent digestibility in vivo of a short-chop de-hydrated grass compared with a traditional grass hay and determines their ability to meet the predicted energy and protein needs of mature ponies.Six mature Welsh-cross pony geldings with a mean liveweight (LW) of 281 kg (s.e.d. 0.89) were individually housed and offered ad libitum access to either short-chop de-hydrated grass (DHG) or traditional grass hay (HAY) plus 60 g/h/d minerals. The DHG and HAY were made from the same 2nd cut perennial ryegrass sward cut on the same day.

scholarly journals Body weight gain and voluntary feed intake in meat goat does fed endophyte-infected and endophyte-free tall fescue seed

2007 ◽  
Vol 13 ◽  
pp. 427-429
Author(s):  
R. Browning ◽  
J.R. Author ◽  
B. Donnelly ◽  
T. Payton ◽  
P. Pandya ◽  
...  
Keyword(s):  
United States ◽  
Body Weight ◽  
Feed Intake ◽  
Tall Fescue ◽  
Body Weight Gain ◽  
Southeastern United States ◽  
Voluntary Feed Intake ◽  
Endophyte Infection ◽  
States Data ◽  
Meat Goat

Tall fescue is the primary pasture forage offered to goats in the southeastern United States. Data on how tall fescue endophyte (Neotyphodium coenophialum) affects meat goat performance are lacking. In three summers, yearling does were fed diets containing tall fescue seed to assess the effect of endophyte infection on goat growth and feed intake. In 2004 and 2005, does were fed endophyte-infected (EI) or endophyte-free (EF) tall fescue seeds added to the diets for 10 wk. Feed refusals were weighed daily. The EI diet reduced (P

The relations between the apparent digestibility of roughages in the rumen and lower gut of sheep, the volume of fluid in the rumen and voluntary feed intake

1967 ◽  
Vol 9 (4) ◽  
pp. 463-470 ◽  
Author(s):  
M. J. Ulyatt ◽  
K. L. Blaxter ◽  
I. McDonald
Keyword(s):  
Polyethylene Glycol ◽  
Feed Intake ◽  
Volume Of Fluid ◽  
Ratio Method ◽  
Apparent Digestibility ◽  
Voluntary Feed Intake ◽  
Ad Libitum ◽  
Voluntary Intake ◽  
Hind Gut ◽  
Volumes Of Distribution

Three sheep with permanent fistulas of the rumen were each given dried grass and two hays, each in three different amounts, and the apparent digesti-bility of the roughages in the rumen and distal to the rumen was determined. A lignin ratio method was used to measure digestibility.With increase in the amount of the poorest hay given, the proportion digested in the rumen fell and that distal to the rumen increased. With the second hay this effect was also noted but was not statistically significant. The voluntary intakes ofdry matter varied from 1·94 kg/day for the dried grass to 1·28 for the poorest hay. The volumes of distribution of polyethylene glycol in the rumen when feed was offered ad libitum, however, were the same, irrespective of the type of feed, at between 14·1 and 15·2 litres. These observations were confirmed at slaughter. The results support the hypothesis that sheep voluntarily consume roughages of different qualities to achieve constant fill of their rumens, and that little regulation of voluntary intake can be attributed to distension of the hind gut.

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