The utilization of roughages by sheep and kangaroos

1970 ◽  
Vol 18 (3) ◽  
pp. 247 ◽  
Author(s):  
DK Forbes ◽  
DE Tribe
Keyword(s):  
Body Weight ◽  
Crude Protein ◽  
Dry Matter ◽  
Poor Quality ◽  
Crude Fibre ◽  
Weight Losses ◽  
The Poor ◽  
Quality Diet ◽  
Oat Straw ◽  
Ad Libitum

The utilization of good-quality and poor-quality roughages (lucerne hay and oat straw) by red and grey kangaroos, Megaleia rufa and Macropus giganteus, compared with sheep was investigated by means of digestibility trials in individual metabolism cages. On average the kangaroos ate slightly less per unit metabolic body weight than the sheep when fed ad libitum, but the differences were not significant. They digested a similar percentage of lucerne dry matter but digested straw much less well, mainly because of their poor ability to digest crude fibre. When nitrogen intakes were low, with the straw diet, the kangaroos retained nitrogen less well than sheep although the digestibility of the crude protein was similar for kangaroos and sheep. The kangaroos appeared to have relatively low energy and nitrogen requirements, probably because of their low metabolic rate, and their weight losses were similar to sheep on the poor-quality diet despite much lower digestible dry matter intakes per unit metabolic body weight. There were no differences between red and grey kangaroos in dry matter digestibilities, nitrogen metabolism, or rate of passage.

The utilization of roughage by sheep and the red kangaroo, Macropus rufus (Desmarest)

1965 ◽  
Vol 16 (3) ◽  
pp. 429 ◽  
Author(s):  
JZ Foot ◽  
B Romberg
Keyword(s):  
Body Weight ◽  
Dry Matter ◽  
Poor Quality ◽  
Weight Changes ◽  
Dietary Nitrogen ◽  
Dry Matter Digestibility ◽  
Red Kangaroo ◽  
Quality Diet ◽  
Oat Straw ◽  
Food Residues

Two roughage diets, lucerne hay and oat straw, were given to three Corriedale sheep and three red kangaroos. Dry matter intakes, nitrogen balances, and body weight changes of the animals were compared, and the digestibilities of each diet by each species and the retention times of the food residues in their alimentary tracts were estimated. The kangaroos were less affected by the quality of the diet than were the sheep. The sheep ate nearly the same amount of lucerne hay and less oat straw than the kangaroos, after adjustment for body weight differences. Digestibility coefficients were higher for the lucerne hay when fed to the sheep, but apparent dry matter digestibility coefficients for oat straw were about the same for sheep and kangaroos. The mean retention times of food residues were lower in the kangaroos, and dietary nitrogen was retained to the same or a slightly lesser extent than in the sheep. The kangaroos maintained weight on the poor quality diet and appeared to be even better adapted to utilize this type of roughage than the sheep.

Nitrogen and Sulphur Retention and Fibre Digestion by Euros, Red Kangaroos and Sheep.

1974 ◽  
Vol 22 (1) ◽  
pp. 13 ◽  
Author(s):  
ID Hume
Keyword(s):  
Body Weight ◽  
Dry Matter ◽  
Poor Quality ◽  
Latin Squares ◽  
Energy Requirements ◽  
Maintenance Energy ◽  
Red Kangaroo ◽  
The Poor ◽  
Faecal Nitrogen ◽  
Quality Diet

Retention of nitrogen and sulphur, and digestion of various carbohydrate fractions, were measured in euros, red kangaroos and sheep, fed three different quality roughages in an experiment of three 3 by 3 latin squares. Sheep ate more dry matter (DM) and digestible energy (DE) per unit metabolic body weight than the euros or red kangaroos, but there were no significant differences in DM intakes between euros and red kangaroos. Despite lower DE intakes, euros lost less weight on the poor-quality diet than sheep. The euros digested more DM and consumed more DE than the red kangaroos, which lost more weight than either the euros or the sheep on the poor-quality diet. Maintenance energy requirements were calculated to be 136, 109 and 99 kcal DE per kg W0*76 per day for the sheep, red kangaroos and euros, respectively. Digestibility of structural carbohydrates was not significantly different between sheep and euros, but both species were more efficient than the red kangaroos. Also, there were no significant differ- ences in nitrogen or sulphur balance between sheep and euros, but both retained more nitrogen and sulphur per unit metabolic body weight than red kangaroos. Faecal nitrogen and sulphur losses were similar in euros and red kangaroos, but red kangaroos excreted more nitrogen and sulphur in their urine than euros. It is concluded that the red kangaroo is less efficient than the euro or sheep in retaining nitrogen and sulphur, and in digesting fibre, when fed poor-quality roughage diets.

scholarly journals Effect of graded levels of toasted bambara groundnut (Voandzeia subterranea L) waste on performance of growing rabbits

2021 ◽  
Vol 35 (2) ◽  
pp. 202-209
Author(s):  
A. O. Ani
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Feed Intake ◽  
Crude Protein ◽  
Dry Matter ◽  
Bambara Groundnut ◽  
Ether Extract ◽  
Crude Fibre ◽  
Final Body Weight ◽  
Nitrogen Free Extract

The effects of different dietary levels of toasted bambara groundnut (Voandzeia subterranea L) waste on the performance of growing rabbits was studied. Twenty-four, 6-7 weeks old cross bred (Chinchilla x New Zealand whitel rabbits with average initial weight of 9629 were used for the feeding trial which lasted for 8 weeks. The rabbits were randomly divided into four treatment groups of 6 rabbits each and fed diets containing 0% (control), 10, 20 and 30% toasted bambara groundnut waste (TBGW) using a completely randomized design (CRD). Dry matter, crude protein, crude fibre, ether extract and nitrogen-free extract intake and digestibility, weight gain and economics of TBGW inclusion were determined. Proximate composition of the diets, faeces, raw and toasted samples were also determined. The raw and toasted bambara groundnut waste had 91 and 93% dry matter, 17.0 and 16.27% crude protein, 26 und 24% crude fibre, 5 and 3. 5% ether extract, 2.5 and 4.0% ash, 40.5 and 45.23% nitrogen-free extract, and 4.13 and 3.88 kcal/g energy respectively. Significant differences (P<0.05) existed between treatments in feed intake, weight gain, final body weight, and digestibility of dry matter. crude protein, crude fibre and nitrogen free extract. Feed intake, weight gain, final body weight, and digestibility of dry matter, crude protein and nitrogen-free extract were similar for the control and 30% TBGW diets, and these were significantly (P<0.05) lower than that for 10% TBGW diet. The feed cost AN/kg gain) was similar for 10, 20 and 30% TBGW diets. The result showed that up to 30% toasted bambara groundnut waste can be included in the diets of growing rabbits without any adverse effect on performance.

A note on the effect of urea contained in a molassed sugar beet pulp cube on the voluntary intake and digestibility of oat straw by steers

1973 ◽  
Vol 17 (2) ◽  
pp. 205-208 ◽  
Author(s):  
G. Fishwick ◽  
R. G. Hemingway ◽  
J. J. Parkins ◽  
N. S. Ritchie
Keyword(s):  
Sugar Beet ◽  
Crude Protein ◽  
Dry Matter ◽  
Sugar Beet Pulp ◽  
Crude Fibre ◽  
Beet Pulp ◽  
Oat Straw ◽  
Voluntary Intake

SUMMARY1. The effects of 0·9 to 1·0 kg molassed sugar beet pulp cubes, supplemented with minerals and vitamins and with either 0, 3·0 and 7·8% urea, on the voluntary intake of oat straw (either 2·0 or 3·0% crude protein) were measured in two experiments with 250 to 300 kg British Friesian steers.2. Straw intake was increased by a maximum of about 20% when a total of about 165 g crude protein was supplied by the urea-containing sugar beet products.3. In one digestibility trial conducted with 385 kg steers, the inclusion in sugar beet pulp of urea equivalent to 89 g and 169 g crude protein/day comparably and significantly increased the digestibility of dry matter and crude fibre.

Effects of coat length and faecal hair removal on measured nutrient digestibility in cats

2018 ◽  
Vol 21 (4) ◽  
pp. 379-386
Author(s):  
Hee S Kim ◽  
Jin S Hong ◽  
Chang W Park ◽  
Kyung H Cho ◽  
Yoo Y Kim
Keyword(s):  
Amino Acids ◽  
Body Weight ◽  
Crude Protein ◽  
Dry Matter ◽  
Nutrient Digestibility ◽  
Hair Removal ◽  
Domestic Cats ◽  
Precise Method ◽  
Collection Period ◽  
Ad Libitum

Objectives This experiment was conducted to evaluate the effect of coat length and faecal hair removal on measured nutrient digestibility in longhair and shorthair cats. Methods A total of 14 adult domestic cats, with a mean ± SD body weight of 4.5 ± 1.21 kg and a mean ± SD age of 3.3 ± 1.38 years, were used for a nutrient digestibility trial. The nutrient digestibility of cats was measured by hair-included faeces and hair-removed faeces. Food was provided twice daily (09:00 h and 16:00 h) and water was provided ad libitum. Cats were adapted to a steel cage and diet for 16 days before a 10 day collection period. During the collection period, food offered, food refused and faecal output were measured daily and used for digestibility analysis. Results The digestibility of dry matter, crude protein and neutral detergent fibre (NDF) of longhair cats was underestimated by 8% ( P = 0.02), 9% ( P = 0.04) and 14% ( P = 0.04), respectively. In shorthair cats, the digestibility of dry matter, crude protein and crude ash increased by 4% ( P = 0.01), 5% ( P = 0.02) and 15% ( P <0.01), respectively, with hair-removed faeces. The nutrient digestibility between longhair and shorthair cats showed no difference when hair-included faeces were used. However, when using hair-removed faeces, the digestibility of NDF and amino acids in longhair cats were about 4–8% higher than in shorthair cats ( P <0.05). Conclusions and relevance This study showed that the nutrient digestibility values were affected by whether the hair in faeces was removed or not. Removing hair from faeces is a more precise method with which to evaluate the apparent nutrient digestibility of domestic cats.

The effect of urea on the absorption of volatile fatty acids from the rumen of sheep fed on oat straw

1968 ◽  
Vol 19 (5) ◽  
pp. 803 ◽  
Author(s):  
GJ Faichney
Keyword(s):  
Dry Matter ◽  
Volatile Fatty Acids ◽  
Body Weight Loss ◽  
Poor Quality ◽  
Crude Fibre ◽  
Mean Values ◽  
Oat Straw ◽  
The Mean ◽  
Food Residues ◽  
Matter Energy

The effect of a urea supplement on the utilization of a diet of poor quality oat straw plus minerals, fed to sheep, was investigated. The supplement of urea was responsible for a highly significant (P < 0.01) increase in dry matter and energy intake and a highly significant ( P < 0.01) decrease in body weight loss. There was a significant (P < 0.05) increase in nitrogen balance and in the rate of passage of food residues through the alimentary tract. A tendency for the digestibility of dry matter, energy, crude fibre, and cellulose to be higher when the urea supplement was given was not significant. There was a significant (P < 0.05) increase in the VFA absorbed from the rumen reflecting the increase in intake, but there were no differences between diets in the contributions of acetic, propionic, and butyric acids to VFA absorption. The mean values obtained for the proportion of the digested energy accounted for by the VFA on the straw plus urea diet and the straw diet (with the standard error of the mean) were 31.4 (± 2.5)% and 38.1 (± 5.6)% respectively.

scholarly journals Dry matter intake, nutrient digestibility and nitrogen balance in growing Red sokoto bucks fed Sorghum bicolor hay supplemented with concentrate

2021 ◽  
Vol 44 (3) ◽  
pp. 332-341
Author(s):  
B. M. Munza ◽  
M. R. Hassan ◽  
R. J. Tanko ◽  
S. M. Otaru ◽  
D. J. U. Kalla ◽  
...  
Keyword(s):  
Body Weight ◽  
Sorghum Bicolor ◽  
Nitrogen Balance ◽  
Crude Protein ◽  
Dry Matter ◽  
Nutrient Digestibility ◽  
Dry Matter Intake ◽  
Crude Fibre ◽  
Neutral Detergent Fibre ◽  
Acid Detergent Fibre

During the dry season, forages are low in quantity and quality; hence lacks the essential nutrients that are prerequisite for growth in ruminants, suggesting a supplemental feeding. Thus, this study was conducted to investigate the dry matter intake, nutrient digestibility and nitrogen balance in growing Red Sokoto bucks fed Sorghum bicolor hay supplemented with concentrate. Eight growing Red Sokoto bucks with average body weight of 15±1.0 kg were randomly allotted to two dietary treatments containing S. bicolor hay/concentrate mixture (100:0 and 60:40). The bucks were individually fed at 3.5% body weight daily for a period of 21 days in a completely randomised design with four replicates per treatment. The parameters measured were dry matter intake, water intake, amount of faeces voided, volume of urine and costs of feeding. Total dry matter intake (424.64g/day) was significantly (p<0.05) higher in 60:40 dietary treatment than 100:0 treatment (353.57g/day). The digestibility coefficients of crude fibre (92.34 %), acid detergent fibre (71.46 %) and neutral detergent fibre (69.77 %) were significantly (p<0.05) higher in Red Sokoto bucks fed Sorghum bicolor hay:concentrate ratio of 100:0 compared to bucks fed 60:40 diet with crude fibre (87.25 %), acid detergent fibre (59.67 %) and neutral detergent fibre (60.08 %) digestibility coefficient values. However, crude protein (78.49 %) and ash (70.04 %) digestibility coefficients in bucks fed 60:40 diet were significantly (p<0.05) higher than those fed 100:0 diet with 38.14 % crude protein and 21.45 % ash digestibility coefficients. There was an increasing trend (p<0.05) in all parameters measured when concentrate was supplemented. The nitrogen retained (7.55 g/day), nitrogen retained as % intake (68.76 %) and nitrogen absorbed as % intake (78.46 %) were significantly (p<0.05) higher in Red Sokoto bucks fed 60:40 diets when compared with that of 100:0 diet which recorded 0.69 g/day nitrogen retained, 23.87 % nitrogen retained as % intake and 38.15 % as nitrogen absorbed as % intake, respectively. Total costs per kg of feed (N78.13K) and costs of feeding per buck (N696.72K) were significantly (p<0.05) higher for 60:40 diet than 100:0 diet with N45.83K total costs per kg feed and N340.29K costs of feeding per buck. It is therefore, concluded that concentrate supplementation on Sorghum bicolor hay enhances its utilisation by growing Red Sokoto bucks in terms of increased dry matter intake, nutrient digestibility and nitrogen retention in Northern Guinea Savannah of Nigeria.

scholarly journals Intake And Nutrient Digestibilities Of All-concentrate Diet From Forage And Some Crop Wastes By Sheep And Goats

2021 ◽  
Vol 20 ◽  
pp. 20-24
Author(s):  
A. A Adeloye
Keyword(s):  
Body Weight ◽  
Crude Protein ◽  
Dry Matter ◽  
Nutritive Value ◽  
Ether Extract ◽  
Crude Fibre ◽  
Sheep And Goats ◽  
Digestible Energy ◽  
Conventional Diet ◽  
Seed Testa

A total of 20 animals comprising 10 ranis and 10 bucks were involved in a digestibility study to assess the nutritive value of a combination of yam peel, cocoa-seed testa and Leucaena leaf in an all-concentrate diet for the sheep and goat. Parameters for assessment were dry matter intakes, dry matter and nutrient digestibilities, total digestible nutrients and nutritive ratio. The dry matter intakes in the all-concentrate diet by the sheep and goat ( > 4% of body weight) were higher (p<0.05) than obtained for the conventional diet of grass hay and supplemental concentrates of dry matter, crude protein and energy were lower (P<0.05) while those of crude protein and ether extract were higher and significant when compared to the conventional diet. The nature of the crude fibre of all-concentrate feed could influence the dry matter and energy digestibilities, and the digestible energy. The nutritive ratio of the all-concentrate feed was narrow (P<0.05) and indicated a high nutritive value.

scholarly journals Further Studies on the Utilization of Cocoa Husk in Ruminant Rations

2021 ◽  
Vol 3 (2) ◽  
pp. 139-146
Author(s):  
S. A. Adeyanju ◽  
O. Akinokun ◽  
O. O. Ariyibi
Keyword(s):  
Body Weight ◽  
Organic Matter ◽  
Crude Protein ◽  
Dry Matter ◽  
Apparent Digestibility ◽  
Weight Changes ◽  
Crude Fibre ◽  
Body Weight Changes ◽  
Sheep And Goats ◽  
Basal Ration

THE effect on body weight changes of sheep and goats and digestibility of maintenance rations in which cocoa husk constituted, 0%, 20%, 40% and 50% of the basal ration respectively were studied. These rations were fed to wethers and castrated goats in separate but concurrent digestibility trials. There was no significant change in body weight of both the sheep and the goat. Significant decreases in apparent digestibility occurred in dry matter, organic matter, crude protein, crude fibre and total digestible nutrients. The 40% cocoa husk ration in which cocoa husk existed with maize in the ratio 2:1 appeared to be next best to the control ration for fibre digestibility. Apparent digestibility of the crude fibre component of the feed was significantly higher in the sheep than in the goats.

scholarly journals Factors affecting the voluntary intake of food by cows

1966 ◽  
Vol 20 (2) ◽  
pp. 229-244 ◽  
Author(s):  
R. C. Campling ◽  
M. Freer
Keyword(s):  
Dry Matter ◽  
Alimentary Tract ◽  
Crude Fibre ◽  
Factors Affecting ◽  
The Poor ◽  
Food Digestibility ◽  
Oat Straw ◽  
The Mean ◽  
Voluntary Intake ◽  
The Relationship

1. Two experiments were conducted to examine the effect of grinding and pelleting roughages on the voluntary intake of food, digestibility, time of retention of food in the digestive tract, amounts of digesta in the recitulo-rumen and eating and ruminating behaviour of adult, non-lactating, non-pregnant cows. The first experiment was with artificially dried grass and the second with oat straw; also, with a diet of ground, pelleted oat straw the effect was studied of giving a daily intraruminal infusion of 150 g urea. The size of the particles of the ground roughages are given. 2. The mean voluntary intakes of long and ground dried grass were similar, the voluntary intake of ground, pelleted oat straw was 26% greater than that of long straw and the daily infusion of urea increased the voluntary intake of ground, pelleted oat straw by 53%. 3. The digestibility of the ground roughages was lower than that of the long roughages, the lower digestibility of the ground roughages was due mainly to the poor digestibility of crude fibre in the reticulo-rumen. The rate of disappearance of cotton thread placed in the ventral sac of the rumen was slower with ground than with long roughages. 4. The mean times of retention of ground roughages were shorter than those of long roughages when equal and restricted amounts of each food were given; with food offered ad lib. there was little difference between the mean times of retention of long and ground roughages in the alimentary tract. 5. On average, the mean amounts of digesta dry matter in the reticulo-rumen immediately after a meal were about the same with long and ground dried grass, with long and ground oat straw the amounts of dry matter were similar, but when the intraruminal infusion of urea was given the amount of dry matter increased by 49%. 6. The rate of eating (min/kg food) ground, pelleted roughages was much faster than that with long roughages; when the cows received ground roughage rumination did not occur but during short periods triple reticular contractions were seen. 7. The relationship between the voluntary intake of food, the amount of digesta in the reticulo-rumen and the rate of disappearance of digesta from the alimentary tract is discussed.

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