scholarly journals On the influence of diet on the retention time of food in the digestive tract of cows

1960 ◽  
Vol 32 (1) ◽  
pp. 39-51
Author(s):  
Aarne Mäkelä ◽  
Liisa Liakka
Keyword(s):  
Sugar Beet ◽  
Digestive Tract ◽  
Retention Time ◽  
Dry Matter ◽  
Sugar Beet Pulp ◽  
Mean Retention Time ◽  
Retarding Effect ◽  
Beet Pulp ◽  
The Mean ◽  
Matter Basis

The retention times of dry matter and its constituents in the digestive tract of cows on hay+sugar beet pulp (5 cows) and cows fed on hay+swedes (8 cows) are compared with the retention times pertaining to cows fed on hay+concentrate or hay only. The following conclusions were reached; On a hay+sugar beet pulp diet the mean retention time of dry matter in the reticulo-rumen, and the retention times of lignin in the reticulo-rumen, in the whole digestive tract, and in the digestive tract following the reticulo-rumen are of the same magnitude as the corresponding retention times on a hay+concentrate diet (figs. 1, 2, 5, and 6). The mean retention time of membrane substances in the reticulo-rumen seems to be shorter and that of valuable N-free nutrients in the reticulo-rumen longer than the corresponding retention times on a hay+concentrate diet (figs. 3 and 4). On a hay+swede diet the mean retention times of dry matter and membrane substances in the reticulo-rumen are of the same magnitude as on a hay+concentrate diet (figs. 1 and 3). The mean retention time of valuable N-free nutrients in the reticulo-rumen and, in abundant feeding, the retention times of lignin in the reticulo-rumen, in the whole digestive tract, and especially in the digestive tract following the reticulo-rumen are shorter than on the hay+concentrate diet (figs. 2, 4, 5, and 6). On the hay+sugar beet pulp and the hay+swede diets the retention times are in general of the same magnitude. However, the retention time of membrane substances in the reticulo-rumen is shorter and that of the valuable N-free nutrients considerably longer on a hay+sugar beet pulp than on a hay+swede diet. Replacing a certain amount of hay by concentrates, sugar beet pulp or swedes on a dry matter basis seems to have no effect on the mean retention time of dry matter in the reticulo-rumen. However, a retarding effect on the rate of passage of typical hay constituents (lignin and membrane substances) and an accelerating effect on that of valuable N-free nutrients characteristic of concentrated foods was observed. The said replacing accelerates the rate of passage of lignin in the disgestive tract following the reticulo-rumen on a hay+swede diet.

Algebraic methods to determine total tract mean retention time of digesta in ponies given ad libitum access to pelleted diets containing different levels of unmolassed sugar beet pulp

2005 ◽  
Vol 2005 ◽  
pp. 48-48 ◽  
Author(s):  
J. J. Hyslop
Keyword(s):  
Sugar Beet ◽  
Retention Time ◽  
Dry Matter ◽  
Sugar Beet Pulp ◽  
Calculation Methods ◽  
Passage Rate ◽  
Mean Retention Time ◽  
Beet Pulp ◽  
Digesta Passage ◽  
Different Levels

Digesta passage rate may have influenced previously reported work on the intakes, apparent digestibilities and nutritive values of complete pelleted diets containing unmolassed sugar beet pulp (USBP) at levels ranging from 0-800 g/kg dry matter (DM) when offered to ponies (Hyslop, 2002). This study’s objective was to compare total tract mean retention time (TMRT) of digesta using two algebraic calculation methods in the same ponies.

A comparative study of the feeding value of dried sugar-beet pulp for milk production

1972 ◽  
Vol 78 (3) ◽  
pp. 371-377 ◽  
Author(s):  
M. E. Castle
Keyword(s):  
Sugar Beet ◽  
Milk Production ◽  
Dry Matter ◽  
Daily Intake ◽  
Weight Basis ◽  
Sugar Beet Pulp ◽  
Equal Weight ◽  
Beet Pulp ◽  
Feeding Value ◽  
Matter Basis

SUMMARYTwo 16-week experiments with lactating Ayrshire cows were conducted to study the effect on milk production of replacing barley with dried molassed sugar-beet pulp on an equal dry-matter basis. The cows on all treatments received equal weights of hay, groundnut cake and minerals but the contents of barley and of sugar-beet pulp each varied from 0 to 80% in the different concentrate mixtures. The total daily intake of dry matter expressed as a percentage of live weight averaged 2·64 and 2·72 in the two experiments.The average yield of milk in the two experiments was 18·8 kg/cow per day, and, within each experiment, the mean yields of milk and the contents of solids-not-fat and crude protein were not significantly different on the contrasting feeding treatments. The intake of water was significantly increased as the dried beet pulp replaced the barley but no major changes occurred in the proportions of V.F.A.S in the rumen liquor.It is concluded that barley and dried molassed sugar-beet pulp had the same feeding value on a dry-matter basis when used in the production ration of milking cows. It is suggested that for most purposes barley and dried sugar-beet pulp are interchangeable on an equal weight basis, but for more precise feeding the two feeds should replace each other on an equal dry-weight basis.

A note on dried, molassed sugar-beet pulp and unmolassed, pressed sugar-beet pulp as comparative foods for dairy cows

1986 ◽  
Vol 43 (2) ◽  
pp. 351-354 ◽  
Author(s):  
J. J. Parkins ◽  
R. G. Hemingway ◽  
J. Fraser
Keyword(s):  
Great Britain ◽  
Sugar Beet ◽  
Dairy Cows ◽  
Dry Matter ◽  
Sugar Beet Pulp ◽  
Beet Pulp

ABSTRACTSugar-beet pulp as normally produced in Great Britain contains about 400 g molasses per kg dry matter (DM). It has been demonstrated that either a reduction in the amount or even the full removal of the molasses did not affect the yield or composition of the milk of cows (e.g. Ronning and Bath, 1962; Hemingway, Parkins and Fraser, 1986). The dried, shredded pulp without molasses was, however, generally less palatable.

scholarly journals Effects of chemical preservative and pressing of ensiled sugar-beet pulp on the quality of fermentation process

2011 ◽  
Vol 50 (No. 12) ◽  
pp. 553-560 ◽  
Author(s):  
P. Doležal ◽  
V. Pyrochta ◽  
J. Doležal
Keyword(s):  
Lactic Acid ◽  
Sugar Beet ◽  
Dry Matter ◽  
Fermentation Process ◽  
Ph Value ◽  
Sugar Beet Pulp ◽  
Dry Matter Content ◽  
Chemical Preservative ◽  
Beet Pulp

This study deals with effects of pressing of ensiled sugar-beet pulp and of application of a chemical preservative on the quality of fermentation process. The experimental silages had a better sensory evaluation than the control ones. In silages treated chemically with a mixture of acids, statistically significantly (P < 0.01) higher dry matter content, lowest pH value, the value of lactic acid and the lowest content of all acids in dry matter were found after 180 days of storage from the beginning of the experiment. The statistically significantly (P < 0.01) highest lactic acid content (43.39 ± 1.25 g/kg DM) was determined in the control pressed silage. The highest LA/VFA ratio (1.40 ± 0.18) was calculated for non-pressed experimental silage (D – 3 l/t of KEM). As compared with untreated control the highest percentage (P < 0.01) of lactic acid and of all fermentation acids was found out in silage D treated with 3 l/t of KEM (58.18 ± 0.47 g/kg DM). Undesirable butyric and propionic acids were not found in chemically treated silage samples (C, D, E, F). However, the highest (P < 0.01) contents of butyric acid (26.37 ± 0.91 g/DM) and propionic acid (4.58 ± 0.78 g/DM) were measured in untreated non-pressed silage samples (B). The highest (P < 0.01) contents of acetic acid and ethanol were found in control silage samples. The quality of these silages was evaluated as very low.  

scholarly journals The mobile bag technique as a method for determining the degradation of four botanically diverse fibrous feedstuffs in the small intestine and total digestive tract of ponies

2002 ◽  
Vol 88 (6) ◽  
pp. 729-740 ◽  
Author(s):  
M. J. S. Moore-Colyer ◽  
J. J. Hyslop ◽  
A. C. Longland ◽  
D. Cuddeford
Keyword(s):  
Small Intestine ◽  
Sugar Beet ◽  
Digestive Tract ◽  
Crude Protein ◽  
Latin Square ◽  
Sugar Beet Pulp ◽  
Oat Hulls ◽  
Acid Detergent Fibre ◽  
Beet Pulp ◽  
Naked Oats

Anin saccomobile bag technique was used to determine the rate and extent of disappearance of unmolassed sugar-beet pulp, soyabean hulls, hay cubes and an oat hull–naked oats mixture (67:33, w/w) in the foregut and total digestive tract of ponies. Ponies were administered naso-gastrically polyester mesh bags (60×10×10 mm) containing 350 mg feed, in a 3×4 Latin square design. Bags were collected at the ileo-caecal junction (small intestine bag, SIB) and in the faeces (faecal bag, FB) and their residues analysed for proximate constituents and NSP composition and content. DM disappearances from individual bags were fitted to degradation profiles () and effective degradability values determined. Significant differences (P<0·05) in DM, organic matter and crude protein (N×6·25) losses from SIB were noted between feeds with hay cubes and oat hulls–naked oats > sugar-beet pulp and soyabean hulls. Acid-detergent fibre, neutral-detergent fibre and NSP disappearances were small and varied little between feeds. In contrast, FB losses showed significant (P<0·05) differences for all constituents measured with sugar-beet pulp > soyabean hulls > hay cubes > oat hulls–naked oats. Crude protein losses from sugar-beet pulp and soyabean hulls in FB were significantly higher (P<0·05) than from SIB. FB degradation curves showed degradation to be affected by bag residence time with sugar-beet pulp > soyabean hulls and the effective degradability showed that significantly more (P<0·05) sugar-beet pulp was lost at 40.0 and 60.0 h than for the other three feeds. These results show that sugar-beet pulp and soyabean hulls are rapidly degraded by ponies and could be used as alternatives to hay in equid rations. However, the foregut availability of crude protein from sugar-beet pulp is poor, so a readily digestible source of crude protein should be offered to animals with high protein demands when diets are based on sugar-beet pulp.

Effect of fibre content in the diet on the mean retention time in different segments of the digestive tract in growing pigs

2007 ◽  
Vol 109 (1-3) ◽  
pp. 27-29 ◽  
Author(s):  
A. Wilfart ◽  
L. Montagne ◽  
H. Simmins ◽  
J. Noblet ◽  
J. van Milgen
Keyword(s):  
Digestive Tract ◽  
Retention Time ◽  
Growing Pigs ◽  
Fibre Content ◽  
Mean Retention Time ◽  
The Mean

Soaked unmolassed sugar beet pulp as a partial forage replacer in equine diets when ponies are offered grass hay ad libitum

1999 ◽  
Vol 1999 ◽  
pp. 140-140
Author(s):  
J. J. Hyslop ◽  
D. Cuddeford
Keyword(s):  
Sugar Beet ◽  
Dry Matter ◽  
Latin Square ◽  
Sugar Beet Pulp ◽  
Apparent Digestibility ◽  
Voluntary Feed Intake ◽  
Grass Hay ◽  
Beet Pulp ◽  
Ad Libitum

There is increased interest in using sugar beet pulp (SBP) products as forage replacers in equine diets. Previous work (Hyslop et al 1998) has indicated that SBP products may suppress voluntary feed intake (VFI) in ponies when they are the major fibre source at between 550-700 g/kg total diet dry matter (DM). This study examines VFI and apparent digestibility in vivo where soaked unmolassed sugar beet pulp (USBP) was offered as a partial forage replacement to ponies receiving ad libitum grass hay.Four mature Welsh-cross pony geldings (280 kg LW s.e. 6.6) were individually housed and offered 0.86 kg/d of micronised barley (MB) and given ad libitum access to grass hay (HAY). In addition, ponies were offered either 0, 1, 2, or 3 kg/d USBP (U0, U1, U2 and U3 respectively) according to a 4 x 4 latin square changeover experimental design.

The effect of sugar beet pulp and rolled barley as absorbents on effluent production, silage fermentation and animal performance

1991 ◽  
Vol 1991 ◽  
pp. 91-91 ◽  
Author(s):  
P N Johnson
Keyword(s):  
Sugar Beet ◽  
Dry Matter ◽  
Sugar Beet Pulp ◽  
List Type ◽  
Type Number ◽  
Grass Silage ◽  
Fresh Material ◽  
Silage Fermentation ◽  
Beet Pulp ◽  
Feeding Value

Silage effluent represents a potential pollutant and a loss of ensiled nutrients. An absorbent provides the possibility of absorbing effluent, aiding fermentation and increasing the feeding value of the silage. Sugar beet pulp (SBP) nuts and rolled barley (RB) were evaluated as absorbents with direct cut grass silage.Perennial ryegrass swards of 222 g/kg average dry matter were direct cut between 10 and 12 July 1989. Grass was ensiled with the following rates of absorbent per tonne of fresh material:1.20 kg SBP (S20).2.40 kg SBP (S40).3.40 kg RB (B40).4.Untreated (U).Production of silage effluent was measured with a tippler mechanism attached to an electronic logger and recorded daily until 22 September. The silages were individually fed through Calan Broadbent doors to 48 x 12 month old Friesian steers between 24 October and 19 December.

The effects of pregnancy of the passage of food through the digestive tract of sheep

1962 ◽  
Vol 13 (5) ◽  
pp. 894 ◽  
Author(s):  
Graham N McC ◽  
AJ Williams
Keyword(s):  
Food Intake ◽  
Digestive Tract ◽  
Dry Matter ◽  
Late Pregnancy ◽  
Daily Food Intake ◽  
Mean Retention Time ◽  
Daily Food ◽  
The Mean ◽  
Food Residues ◽  
Four Levels

The rate of passage of food residues through the digestive tract of pregnant and non-pregnant Merino ewes was measured at four levels of feeding. The passage of digesta became more rapid as the level of feeding was increased, or, the intake being constant, as pregnancy advanced. The mean retention time fell by 3 hr per 100 g increase of food intake, and by 1 to 1½ hr per 100 g increase of estimated weight of concepta at constant intake. The digesta increased by about 150 g dry matter (depending on level of feeding) per 100 g increase of daily food intake and fell by about 150 g per 1000 g increase of estimated weight of concepta. Two alternative explanations of the changes of rate of passage during pregnancy are discussed. While reduction of the quantity of digesta by the increasing bulk of the uterus would tend to curtail appetite, increase of the flow of digesta as a physiological side-effect of pregnancy would tend to enhance appetite. In either case, more rapid passage of digesta would depress the digestibility of some rations and so contribute to undernutrition in late pregnancy.

Sign in / Sign up

Export Citation Format

Share Document