PELLETED AND UNPELLETED ALL-CONCENTRATE RATIONS FOR FATTENING BEEF CATTLE

1964 ◽  
Vol 44 (2) ◽  
pp. 132-141
Author(s):  
W. K. Roberts
Keyword(s):  
Beef Cattle ◽  
Microbial Activity ◽  
Dry Matter ◽  
Gas Pressure ◽  
Chromic Oxide ◽  
Average Weight ◽  
Feeding Trial ◽  
Ph Values ◽  
Feeding Value

A feeding trial and digestibility study were conducted with pelleted whole barley and dry rolled barley, in all-concentrate rations, for fattening steers. Steers receiving pelleted whole barley gained 0.2 lb more per day than those receiving dry rolled barley, and required less feed per 100 lb gain (757 vs. 791 lb, respectively).The chromic oxide technique was used in the digestibility study, and no significant (P > 0.05) differences in apparent dry matter or energy digestibility were observed between the dry rolled and pelleted whole barley. Apparent digestible energy values for dry rolled and pelleted whole barley were 1.440 and 1.413 Mcal per lb, respectively.Rumen pH, at various times after feeding, was slightly lower in steers receiving pelleted whole barley than in steers receiving dry rolled barley. The lowest average pH values (6.0 and 6.3 for steers receiving the pelleted and dry rolled barley, respectively) were observed at 3 hours after feeding. In vitro microbial activity of rumen contents, as measured by change in gas pressure, was affected very little by the barley preparation prior to feeding.A second steer feeding trial was conducted with whole pelleted and dry rolled barley and oats. When the barley and oats were pelleted small increases in average weight gains were observed. Average feed per 100 lb gain was approximately 9.7% less for pelleted barley and 11.8% less for pelleted oats than for these grains when fed in the dry rolled form. The oats and barley used in this trial showed average bushel weights of 39 and 49 lb, respectively, and the feeding value of oats was 91.4% of the value of barley on the basis of average daily gains, and 94.9% on the basis of feed required per 100 lb gain.

scholarly journals EVALUATING CHROMIC OXIDE SUSTAINED RELEASE PELLETS IN DIGESTIBILITY STUDIES WITH RUMINANTS

1965 ◽  
Vol 45 (2) ◽  
pp. 111-116
Author(s):  
L. J. Fisher ◽  
C. M. Williams ◽  
J. M. Bell
Keyword(s):  
Sustained Release ◽  
Dry Matter ◽  
Chromic Oxide ◽  
Indicator Method ◽  
Dry Matter Digestibility ◽  
China Clay ◽  
Percentage Difference ◽  
Constant Rate ◽  
Binding Agents

Sustained release pellets were prepared containing chromic oxide (Cr2O3) as an indicator for digestibility studies using plaster of paris, portland cement, or china clay as binding agents. The pellets released the Cr2O3 at a constant rate in vitro but when placed in the reticulum of steers or wethers failed to mix uniformly with the reticulorumen contents. The percentage difference between the indicator method estimate and the total fecal collection method was 12.7 for estimating dry matter digestibility and 9.7 for energy digestibility. The percentage difference between the calculated and actual dry matter intake was 35.3. The sustained release pellets as prepared in this study are not satisfactory for administering the Cr2O3 indicator to estimate digestibility or feed intake.

Single cereal diets for bacon pigs: 2. The effect of methods of storage and preparation of barley on performance and carcass quality

1970 ◽  
Vol 12 (1) ◽  
pp. 1-6 ◽  
Author(s):  
D. J. A. Cole ◽  
G. W. Dean ◽  
J. R. Luscombe
Keyword(s):  
Weight Gain ◽  
Propionic Acid ◽  
Dry Matter ◽  
Live Weight ◽  
Chromic Oxide ◽  
Carcass Quality ◽  
Apparent Digestibility ◽  
Live Weight Gain ◽  
Feeding Value

SUMMARYBarley which had been stored after treatment with 0·8 % propionic acid was incorporated into pig diets in either the milled or the rolled form and its feeding value compared with that of barley stored dry and then ground, and of moist barley stored anaerobically and then rolled. The pigs were fed from 50 to 200 lb live weight on the four diets. Their performance was not affected by the method of storage of the barley, but those given rolled barley required 11% more dry matter per unit of live-weight gain than those given milled barley. There were no significant differences between the treatments in carcass measurements, or in apparent digestibility coefficients as measured by the chromic-oxide method.

FEEDING VALUE FOR FINISHING STEERS AND HOLSTEIN MALE CALVES OF WHOLE DRIED CORN AND OF WHOLE AND ROLLED HIGH MOISTURE ACID-TREATED CORN

1976 ◽  
Vol 56 (1) ◽  
pp. 43-49 ◽  
Author(s):  
G. K. MACLEOD ◽  
D. N. MOWAT ◽  
R. A. CURTIS
Keyword(s):  
Feed Efficiency ◽  
Dry Matter ◽  
Health Problems ◽  
Holstein Cattle ◽  
Feeding Trial ◽  
High Moisture ◽  
Rumen Epithelium ◽  
Liver Abscesses ◽  
Finishing Steers ◽  
Feeding Value

Three experiments were conducted (1) to compare the feeding value of dried shelled corn and acid-treated high moisture (HM) corn and (2) to determine the effects of rolling acid-treated HM corn for all-concentrate diets fed to finishing beef-type cattle and to growing and finishing Holstein male calves. In a 120-day finishing period, Hereford and Hereford × Charolais steers performed similarly with respect to gain, feed efficiency, carcass measurements and grade on whole dried corn and on whole and rolled acid-treated HM corn. No health problems occurred during the feeding trial in which gains averaged 1.49 kg per day. The performance of Holstein male calves fed from a starting weight of 95 kg to 385 kg also demonstrated that acid-treated HM corn was comparable in feeding value to dried shelled corn. While growth of calves on whole and rolled HM corn was similar (1.24 kg/day), four calves receiving rolled HM corn were lost from the experiment due to acute bloat, laminitis and peritonitis. One calf fed whole dried corn had peritonitis and was also removed from the experiment. Incidence of liver abscesses among cattle completing the trials was 28 and 26% for beef-type and Holstein cattle, respectively. Rumen abnormalities, i.e. clumping of papillae, ulceration of rumen epithelium and accumulation of hair, were evident in calves on all treatments. Rolling of HM corn did not improve digestibility of dry matter (P > 0.05), and percentage of whole kernels in feces of steers fed whole dried or whole HM corn was low (0.45 and 0.32%, respectively).

scholarly journals Sunflower cake in diets for beef cattle: digestibility, kinetics and in vitro ruminal fermentation parameters

2018 ◽  
Vol 41 (1) ◽  
pp. 39492 ◽  
Author(s):  
Rafael Henrique de Tonissi e Buschinelli de Goes ◽  
Luiz Henrique Xavier da Silva ◽  
Tatiana García Díaz ◽  
Antonio Ferriani Branco ◽  
Ana Lúcia Teodoro ◽  
...  
Keyword(s):  
Organic Matter ◽  
Beef Cattle ◽  
Soybean Meal ◽  
Crude Protein ◽  
Dry Matter ◽  
In Vitro Digestibility ◽  
Ruminal Fermentation ◽  
Fermentation Products ◽  
Sunflower Cake

 The objective of this study was to evaluate the effect of the inclusion of sunflower cake replacing soybean meal in beef cattle diets on the in vitro digestibility of dry matter (IVDDM), organic matter (IVDOM), crude protein (IVDCP) and the ruminal fermentation kinetics and parameters. The experiment was analyzed according to a completely randomized design. The treatments consisted of four levels of sunflower cake, 0, 200, 400, 600 g kg-1, replacing soybean meal in the concentrate of beef cattle diets. The coefficients of IVDDM, IVDOM and IVDCP presented a quadratic effect with the addition of sunflower cake. The soluble fraction (fraction B) degradation rate and total gas production decreased linearly with the inclusion of sunflower cake. Values of pH in ruminal fluid were higher for levels 0, 200 and 600 g kg-1 sunflower cake. Sunflower cake can replace soybean meal by up to 280 g kg-1 in the concentrate of beef cattle diets, improving the in vitro digestibility of dry matter organic, matter and crude protein. Levels above 400 g kg-1 reduce ruminal digestion rate, digestibility and release of final fermentation products. 

DIGESTIBILITY AND ACCEPTABILITY OF POTATO STEAM PEEL BY PIGS

1988 ◽  
Vol 68 (1) ◽  
pp. 233-239 ◽  
Author(s):  
J. W. G. NICHOLSON ◽  
P. M. SNODDON ◽  
P. R. DEAN
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Enzyme Inhibitor ◽  
Average Daily Gain ◽  
Feed Consumption ◽  
Feeding Trial ◽  
French Fry ◽  
Proteolytic Enzyme Inhibitor ◽  
Feeding Value ◽  
Daily Gain

Potato steam peel is a by-product of the production of frozen french fry potatoes. As produced, it typically has 14% dry matter with 15% crude protein and 6% ash (dry matter basis) and a pH of 5.8. The starch is partially denatured and there is no proteolytic enzyme inhibitor activity. The feeding value of steam peel for pigs was evaluated through chemical analyses, a digestibility trial and a feeding trial. Its digestibility (%) by pigs was found to be dry matter 81.1 ± 2.8, crude protein 61.3 ± 3.7, organic matter 82.4 ± 3.0 and energy 76.8 ± 6.0. In the feeding trial carried out on a commercial hog finishing farm, feed consumption was markedly reduced when the steam peel was included at over 30% of the ration dry matter at the start of the trial. The inclusion of steam peel at 15, 20 or 25% of the ration dry matter reduced the average daily gain and feed efficiency (P < 0.05). However, it was concluded that potato steam peel can be used at up to 25% of the diet for growing fattening pigs with little detrimental effect on the level of animal performance. Key words: Potato, steam peel, pigs

THE FEEDING VALUE OF POTATO STEAM PEEL FOR GROWING-FINISHING PIGS

1989 ◽  
Vol 69 (1) ◽  
pp. 225-234 ◽  
Author(s):  
T. A. VAN LUNEN ◽  
D. M. ANDERSON ◽  
A.-M. ST. LAURENT ◽  
J. W. G. NICHOLSON ◽  
P. R. DEAN
Keyword(s):  
Growth Performance ◽  
Dry Matter ◽  
Enzyme Inhibitors ◽  
Feed Consumption ◽  
Finishing Pigs ◽  
Feeding Trial ◽  
First Feeding ◽  
Feeding Value ◽  
Feeding Trials ◽  
Inclusion Level

Potato steam peel (SP) is a by-product of potato processing where the peel is removed after steaming. It typically contains 15 ± 3% dry matter, 16 ± 1% crude protein, 0.55 ±.05% lysine, 0% methionine/cystine and 6% ash (dry matter basis). Steaming effectively deactivates the proteolytic enzyme inhibitors and partially denatures the starch. SP was evaluated in a digestibility trial and at levels from 0 to 30% DM in two feeding trials. The digestibility (%) of SP by pigs was found to be 88.4 (DM), 80.1 (CP) and 86.1 (DE). In the first feeding trial diets containing levels of 0, 10, 15, 20, 25 and 30% SP supplemented with methionine resulted in similar growth performance and carcass characteristics. In the second feeding trial, a comparison was made between a constant level of inclusion and an increase in inclusion level with age. Results showed no difference in growth performance or feed consumption among treatments. It is concluded that SP can be incorporated in diets for growing-finishing pigs at levels up to 30% DM. No change in performance resulted from increasing level of inclusion with age. Key words: Potato, steam peel, pigs, digestibility

FEEDING VALUE FOR BEEF STEERS OF CORN SILAGE AS AFFECTED BY HARVEST DATES AND FROST

1977 ◽  
Vol 57 (1) ◽  
pp. 65-73 ◽  
Author(s):  
F. W. CALDER ◽  
J. E. LANGILLE ◽  
J. W. G. NICHOLSON
Keyword(s):  
Dry Matter ◽  
Total Yield ◽  
Dry Weight ◽  
Feed Consumption ◽  
In Vitro Digestibility ◽  
Plant Parts ◽  
Feeding Value ◽  
Whole Plants

An experiment was conducted in 3 consecutive yr with corn grown each year on a field from which silage was made of corn harvested at different dates before and after freezing. Yields of green and dry weight were recorded at each harvest. Individual whole plants and plant parts were evaluated for dry matter (DM), total nitrogen, total available carbohydrates and in vitro digestibility of DM. Animal gains, feed consumption and carcass grades were determined by feeding the silages to yearling Hereford steers and DM digestibility determined with sheep. The total yield and contribution of the ear increased from the first to the second harvesting date. The in vivo digestibility of DM of the silages declined between the second and final harvests in all years as did animal gain in years 1 and 3. The in vitro digestibility appeared to underestimate the effect of frost on the in vivo digestibility of silage made with corn. When the silages were fed to steers, they consumed more dry matter per day from that harvested on the intermediate date than from either the early or late date. Higher carcass grades occurred when the steers were fed corn harvested at the intermediate dates. The results of these experiments show clearly that corn which has been heavily frozen will loose dry matter and feeding value if left standing in the field for a period of time; however, corn harvested soon after freezing is not as seriously affected.

The use of fresh or thawed rumen fluid containing glycerol or particle associated microbes to estimate in vitro degradation of feeds

2003 ◽  
Vol 2003 ◽  
pp. 149-149
Author(s):  
R. Mohamed ◽  
A. S. Chaudhry ◽  
P. Rowlinson
Keyword(s):  
Microbial Activity ◽  
Dry Matter ◽  
Rumen Fluid ◽  
Rapeseed Meal ◽  
In Vitro Degradation ◽  
Dry Matter Degradation

Thawed rumen contents have been used to obtain strained rumen fluid (SRF) to estimate in vitro dry matter degradation (DMD) of feeds (Mohamed et al., 2002). However, thawed SRF (TSRF) gave lower DMD than fresh SRF (FSRF) which was partly attributed to reduced microbial activity in TRSF following storage at -20°C. This study examined the addition of glycerol (G) as cryopreservative and washing from particle associated microbes to SRF before its storage for later use as TSRF to estimate in vitro degradation of rapeseed meal (Rsd) and grass nut (Gnt).

STUDIES ON THE FEEDING VALUE OF Kochia scoparia (L.) Schrad. HAY FOR BEEF CATTLE

1989 ◽  
Vol 69 (3) ◽  
pp. 735-743 ◽  
Author(s):  
R. D. H. COHEN ◽  
A. D. IWAASA ◽  
M. E. MANN ◽  
E. COXWORTH ◽  
J. A. KERNAN
Keyword(s):  
Organic Matter ◽  
Beef Cattle ◽  
Key Words ◽  
Dry Matter ◽  
Nitrogen Retention ◽  
Bromus Inermis ◽  
Beef Steers ◽  
Kochia Scoparia ◽  
Feeding Value ◽  
Medicago Sativa L

Intake, digestibility, nitrogen retention and the effects of 2.6% soluble oxalates in the dry matter (DM) of kochia (Kochia scoparia (L.) Schrad.) were examined when beef steers were fed rations varying from 100 to 0% kochia hay and 100 - 0% bromegrass (Bromus inermis Lyess.)/alfalfa (Medicago sativa L.) hay. Plasma Ca, P, Mg, Zn, Fe and Cu concentrations were normal and not affected by supplementation with CaCO3. The organic matter digestibility (OMD) of kochia (55.4%) was less (P < 0.05) than that of the bromegrass/alfalfa hay (61.3%). However, in a second trial, OMD was not influenced if kochia was included at up to 60% of the ration. In a third trial, DM intake remained constant until 60% kochia was present in the ration but was reduced (P < 0.01), even with careful adaptation, when kochia exceeded 60% of the diet. Nitrogen retention declined (P < 0.05) as the proportion of kochia in the ration increased and was negligible at 100% kochia. Key words: Kochia, digestibility, intake, nitrogen retention, plasma minerals, cattle (beef)

Effect of condensed tannins in Lotus corniculatus on the nutritive value of pasture for sheep

1997 ◽  
Vol 128 (3) ◽  
pp. 365-372 ◽  
Author(s):  
G. C. WAGHORN ◽  
I. D. SHELTON
Keyword(s):  
Soluble Protein ◽  
Condensed Tannins ◽  
Dry Matter ◽  
Nutritive Value ◽  
Experimental Period ◽  
Lotus Corniculatus ◽  
Feeding Trial ◽  
Wool Growth

The extent to which condensed tannins (CT) in Lotus corniculatus were able to affect protein degradation and the nutritive value of pasture were evaluated at Palmerston North, New Zealand in 1992 in an indoor feeding trial with sheep and using in vitro incubations. The feeding trial involved three groups of seven young wether sheep held indoors in metabolism crates for the 32-day experimental period with one group fed freshly cut ryegrass/clover pasture (Pasture group) whilst the other two groups received a mixture of c. 37% freshly cut Lotus corniculatus and 63% pasture (dry matter (DM) basis). One of the latter groups was given twice daily oral drenches of polyethylene glycol (PEG) to bind with and remove the effects of the CT (PEG group) whilst the remaining sheep (Tannin group) were not drenched. Intakes of sheep given the mixed diets were constrained to that of the pasture group. The CT concentration in the lotus was 26·1 g/kg DM so that the mixed diets contained c. 10g CT/kg DM. Effects of CT on digestion and sheep performance were minimal. Apparent digestibility of N was lower in the Tannin group (76·4%) than PEG (79·8%) or Pasture (79·4%) sheep (P<0·001), but there were no differences in DM digestibility (75%) or wool growth from mid-side patches. Rumen ammonia and soluble protein concentrations appeared to be similar in PEG and Tannin sheep and volatile fatty acid (VFA) concentrations were similar in all groups (100 mmol/l).For incubations in vitro, several ratios of Lotus corniculatus: pasture were used to determine the effects of CT on precipitation of soluble proteins and the net yield of ammonia and gas with and without PEG. Homogenates of Lotus corniculatus leaves and pasture showed that 50% of soluble protein was precipitated by 1·3% CT in homogenate DM and there was a substantial decrease in in vitro degradation to ammonia when lotus leaf accounted for 33% or more of DM with pasture. This work emphasises the need for caution when extrapolating from in vitro to the in vivo situation and suggests that 1% CT from Lotus corniculatus may be insufficient to affect the nutritive value of fresh forages for sheep.

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