PELLETED COMPLETE GROWER–FINISHER RATIONS FOR LAMBS

1978 ◽  
Vol 58 (4) ◽  
pp. 571-577
Author(s):  
R. S. BUSH ◽  
J. W. G. NICHOLSON ◽  
T. M. MACINTYRE
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
The Other ◽  
Crude Protein Content ◽  
Economic Basis ◽  
Lower Protein ◽  
Feeding Regimen ◽  
Dressing Percentage ◽  
Dairy Heifer ◽  
Dietary Treatments

Duplicate groups of 10 lambs were assigned to each of four dietary treatments. These were (1) pelleted complete feed containing 13% crude protein, (2) pelleted complete feed containing 15% crude protein, (3) mash concentrate containing 13% crude protein to be fed with long timothy hay, and (4) pelleted complete feed formulated to meet the requirements of the growing dairy heifer. The lambs weighed an average of 17.3 and 23.4 kg in the two replicates at the beginning of the experiment and were slaughtered between 41 and 45 kg. Lambs consuming the lower protein complete feed had greater average daily gains and required fewer days to reach market weight than did those consuming concentrate plus long hay. There were no significant differences in the performance of lambs fed the two pelleted complete lamb rations (1 and 2). The pelleted complete heifer ration (4) produced similar average daily gains to the concentrate plus long hay feeding regimen; however, more feed was required to maintain that growth. There were no differences in carcass grade and no significant differences in rib-eye area or fat cover at the pinbone cut. Those lambs consuming the heifer growth had a lower dressing percentage than did any of the other three groups. It was concluded that pelleted complete rations are advantageous in a fattening lamb program both on performance and economic basis and that there was no advantage to increasing the crude protein content of the pelleted complete ration from 13 to 15%.

The apparent digestibility of crude protein by the ruminant: IV. The effect of crude fibre

1957 ◽  
Vol 49 (1) ◽  
pp. 78-80 ◽  
Author(s):  
J. Glover ◽  
M. H. French
Keyword(s):  
Protein Content ◽  
General Equation ◽  
Crude Protein ◽  
Dry Matter ◽  
The Other ◽  
Apparent Digestibility ◽  
Crude Protein Content ◽  
Crude Fibre ◽  
Modified Equation

The role of crude fibre in modifying the general equation relating the digestibility coefficient of crude protein to the percentage of crude protein in the dry matter of a feed is described.It is shown that for normal average food-stuffs the effect is slight and that for all practical routine purposes the original equation will provide satisfactory estimates of the digestibility coefficient when only the crude-protein content of the dry feed is known.On the other hand, when exceptional feeds are encountered, particularly those in which the crudefibre/crude-protein relationship is abnormal, then more accurate estimates of the digestibility coefficient of crude protein can be obtained from the modified equation which is described above.

The performance of laying hens on diets using barley as the main energy source

1973 ◽  
Vol 13 (62) ◽  
pp. 251 ◽  
Author(s):  
EA Dunstan
Keyword(s):  
Energy Source ◽  
Protein Content ◽  
Crude Protein ◽  
Egg Production ◽  
Laying Hens ◽  
Metabolizable Energy ◽  
The Other ◽  
Crude Protein Content ◽  
Egg Weight ◽  
Equal Energy

An experiment compared egg production on a diet using a mixture of wheat, barley, and oats as the grain portion, with a diet in which the wheat and oats were replaced with barley. A comparison between sundried and dehydrated lucerne meal was included. A second experiment compared the same formulations of barley and mixed grain diets as used in the first experiment, and a mixed grain diet of higher crude protein content. Replacing wheat and oats with barley in an otherwise unchanged diet did not significantly affect the number of eggs produced but did increase the average egg weight by 1.1 g in both experiments, significantly so in one experiment, but not in the other. Increasing the crude protein content of the mixed grain diet did not significantly affect either egg production or egg weight. Consumption of the barley diet was greater than the mixed grain diets. This increase in consumption was less than would have been expected on the basis of equal energy intakes, indicating that the metabolizable energy value of the barley used was greater than values previously published for barley. No differences were found in performance between sundried and dehydrated lucerne meal.

scholarly journals Evaluation of the availability of mass of forage: morphological responses and chemical composition of Tanzania grass subjected to two pasture-management strategies

2020 ◽  
Vol 36 (6) ◽  
Author(s):  
Michele Gabriel Camilo ◽  
Alberto Magno Fernandes ◽  
Tadeu Silva de Oliveira ◽  
Danielle Ferreira Baffa ◽  
Sarah Ellen Eduardo Bernardo ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Protein Content ◽  
Crude Protein ◽  
Management Strategies ◽  
Rest Period ◽  
Light Interception ◽  
The Other ◽  
Crude Protein Content ◽  
Pasture Management ◽  
Sward Height

The objective of this study was to evaluate the morphogenetic traits and chemical composition of Tanzania grass using a fixed rest period or according to light interception at 95%. The treatments consisted of evaluations of two Tanzania-grass pasture-management strategies: (1) LI95 - animals entered the paddocks when the pasture reached 95% of light interception (LI), with three days of paddock occupation; and (2) FR - the pasture was managed with a defoliation interval (DI) of 30 days, and three days of paddock occupation. The experimental area consisted of 4 ha, with 22 paddocks per treatments. Ten recently-calved cows were used per treatment in year 1, and eight cows were used per treatment in year 2. Sward height, forage mass, and morphological components and their chemical composition were evaluated. The management strategies used on the Tanzania grass pasture did not affect pasture mass or height in the pre- and post-grazing conditions, or the proportion of stems. However, the proportion of leaves was greater in the paddocks with 95% light interception. The crude protein content was higher in the paddocks with 95% light interception; the other nutrients were not affected. In conclusion, management adopting 95% light interception does not influence morphogenetic traits. Nevertheless, it promotes an increase in the crude protein content of grasses.

The nutritive value of common heather (Calluna vulgaris) I. The preparation of samples of Calluna vulgaris for analytical purposes and for digestibility studies

1952 ◽  
Vol 42 (4) ◽  
pp. 461-464 ◽  
Author(s):  
Brynmor Thomas ◽  
D. G. Armstrong
Keyword(s):  
Adverse Effect ◽  
Protein Content ◽  
Crude Protein ◽  
Nutritive Value ◽  
Calluna Vulgaris ◽  
The Other ◽  
Crude Protein Content ◽  
Oven Drying ◽  
Large Samples

1. The methods employed by some of the earlier workers for separating analytical samples from heather, show little uniformity and are, in general, poorly defined. No procedure capable of separating the relatively large weights of material necessary for digestibility studies has hitherto been devised.2. Analytical samples prepared by (a) a method used by Thomas, and (b) a method suggested by Braid were compared. The results obtained were very similar, but the latter method was recommended as being the better denned.3. Two methods of preparing large samples for digestibility studies, one adapted for winter heather and the other for use in spring and summer, have been used. Both of these methods, when applied to winter heather, give samples which compare well with a sample obtained by the method of Braid.4. Samples separated in summer by method 5 were compared with samples of material similar to that observed to be eaten by sheep. It was found that the former were of appreciably lower crude protein content and contained slightly more lignin than the latter.5. No evidence of an adverse effect on digestibility by oven-drying for 24–48 hr. at 38° C. was obtained.

scholarly journals Effect of four herbicides on the establishment and forage yield of stargrass in Puerto Rico

1969 ◽  
Vol 73 (2) ◽  
pp. 149-153
Author(s):  
María de L. Lugo ◽  
Li C. Liu ◽  
Carlos E. Ortiz
Keyword(s):  
Puerto Rico ◽  
Protein Content ◽  
Weed Control ◽  
Crude Protein ◽  
Forage Yield ◽  
The Other ◽  
Crude Protein Content

An experiment was performed at the AES-UPR Gurabo Substation to evaluate atrazine, simazine, diuron, and tebuthiuron for preemergence control of weeds in a stargrass pasture. Tebuthiuron at 3.36 kg a.i./ha was the most effective, and tebuthiuron at 1.68 kg a.i./ha was the second most effective. The remaining herbicides also provided satisfactory weed control. At 3.36 kg a.i./ha, tebuthiuron was somewhat phytotoxic to stargrass, but less so at 1.68 kg a.i./ha. None of the other herbicides produced severe stargrass injury. Stargrass yield was not affected by any of the herbicides. Crude protein content of stargrass was not affected by any herbicide tested.

scholarly journals PENGARUH TINGKAT PEMUPUKAN NITROGEN DAN NAUNGAN TERHADAP KERAGAAN DAN KANDUNGAN PROTEIN KASAR RUMPUT Brachiaria humidicola

ZOOTEC ◽  
2015 ◽  
Vol 36 (1) ◽  
pp. 238
Author(s):  
Juneidid S. Togelang ◽  
D. A. Kaligis ◽  
F. Dompas ◽  
N. Bawoleh
Keyword(s):  
Protein Content ◽  
Nitrogen Fertilizer ◽  
Crude Protein ◽  
Block Design ◽  
The Other ◽  
Crude Protein Content ◽  
Brachiaria Humidicola ◽  
Simultaneous Test ◽  
Four Levels ◽  
Different Levels

THE EFFECTS OF NITROGEN FERTILIZER AND SHADING LEVELS ON PERFORMANCE AND CRUDE PROTEIN CONTENT OF Brachiaria humidicola. The aim of this experiment was to study the effects of different levels of shading and nitrogen on the performance and nitrogen content of B. Humidicola. The treatment were consisted of four levels of nitrogen in from of urea fertilizer: P1 = 0 kg/Ha, P2 = 50 kg/Ha, P3 = 100 kg/Ha, P4 = 150 kg/Ha, and three levels of shading: N1 = 0%, N2 = 40% dan N3 = 70%. Treatmens   was arranged in infactorial based on ramdomized block design (RBD). Date was analysis by using Minitab Version 11, and followed with Turkey Simultaneous Test, to determined the different among treatments, from analysis of variance. The result showed the higher number of tiller was found at the interaction of P3N1, P4N1, P2N2 and P3N2, with significantly different compared to the other interactions. Furthermore, analysis of varians showed the interaction of the treatments were effected significantly on the content of crude protein (P < 0,05) where the interaction of N1P4 has the crude protein content 9,74% significantly higher (P < 0,05) compared to other interactions. On the other hand the interaction of the treatments was not effected significantly (P < 0,05) on the leaf: steam ratio. Based on the result of this experiment it can be concluded that B. humidicola responsive to nitrogen farilizer up to 100 kg urea/Ha to provide optimal performance and crude protein content under shade of 40%. Keywords: Nitrogen, Shading Performance, Crude Protein, humidicola.

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