scholarly journals Economic values for evaluating pasture plant traits

2012 ◽  
pp. 209-215 ◽  
Author(s):  
D.F. Chapman ◽  
J.R. Bryant ◽  
W.H. Mcmillan ◽  
E.N. Khaembah
Keyword(s):  
New Zealand ◽  
Dry Matter ◽  
Nutritive Value ◽  
Plant Traits ◽  
Cultivar Differences ◽  
Future Research ◽  
Dry Matter Yield ◽  
Production Traits ◽  
Economic Values ◽  
The Impact

Economic values (EVs) are an estimate of the change in farm system profit per unit of change in a defined plant trait. Cultivars within species such as perennial ryegrass differ in the major production traits of dry matter yield, nutritive value and persistence, but the impact of those differences on farm financial performance is seldom calculated and reported. This paper explains what EVs are, describes how they can be calculated, and discusses some of the associated methodological issues. EVs have been derived for seasonal dry matter yield in New Zealand dairy systems. Extra feed produced in late spring has consistently low economic value, while extra feed produced in early spring has consistently high value. There have been no systematic investigations into the EVs of nutritive value and persistence in New Zealand pastures; this is a clear opportunity for future research. The lack of data on cultivar differences in these traits will restrict the application of EVs to pasture cultivar evaluation. This gap is now being addressed by new industry initiatives. Keywords: pasture cultivars, evaluation, traits, economic values, performance values

Effects of Seeding Rate on the Dry Matter Yield and Nutritive Value of Fall‐Grown Oat

cftm ◽  
2016 ◽  
Vol 2 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Wayne K. Coblentz ◽  
Jason S. Cavadini
Keyword(s):  
Dry Matter ◽  
Nutritive Value ◽  
Dry Matter Yield ◽  
Seeding Rate

scholarly journals Effect of stage of harvest on dry matter yield and nutritive value of lablab purpureus, Centrosema pubescens and as fodder in Adamawa State, Nigeria

2020 ◽  
Vol 45 (2) ◽  
pp. 256-264
Author(s):  
T. F. Mbahi ◽  
S. Maidadi ◽  
Z. A. Gworgwor ◽  
Y. Danladi
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Nutritive Value ◽  
Block Design ◽  
Mucuna Pruriens ◽  
Dry Matter Yield ◽  
Lablab Purpureus ◽  
Yield And Quality ◽  
Randomized Complete Block Design ◽  
Biomass Yields

An experiment was conducted to evaluate the effect of growth, biomas yieds and nutritive value of Lablab purpureus, Centrosema pubescens and Mucuna pruriens under rain fed condition in Yola, Adamawa State, Nigeria. The field experiment was laid in a randomized complete block design with the plot divided into three main plots and replicated three times measuring 5x5m with inter and intra row spacings of 0.5m. The five harvesting stages are 6, 8, 10, 12 and 14 weeks, respectively. The growth in height increases with stage of growth and declined with reduction in rainfall. Higher growth were recorded in T3 (3.8 -354.8cm) followed by T2 (2.96-260.20cm) and then T1 (1.50-213.00cm) and the results were presented graphically. The result of the chemical composition of all the legumes showed that the crude protein decreases with stage of growth from weeks 6 -14 (14.40, 12.26, 10.65-10.08, 6.79, 6.49) and ADF and NDF (25.20, 32.15, 27.35-42.13, 40.33, 36.50 and 32.20, 54.45, 47.00- 51.24, 63.53, 66.33), respectively. The biomass yields were significantly different (P<0.05) for all the legumes at different harvesting stages T1 (2744.53-3186.93), T2 (2696.47- 3006.70) and T3 (2843.73-3147.63). It is therefore concluded that legumes could best be harvested between weeks 10 and 12 when the yield and quality are at levels to sustain the animals both for maintenance and production.

scholarly journals Effect of seedbed methods and time of harvest on the yield and nutritive value of some forage crops grown on Vertisol at Debre Zeit, Ethiopia

1992 ◽  
Vol 1 (5) ◽  
pp. 491-497
Author(s):  
Abate Tedla ◽  
Helena Airaksinen ◽  
M. A. Mohamed-Saleem
Keyword(s):  
Avena Sativa ◽  
Crude Protein ◽  
Dry Matter ◽  
Nutritive Value ◽  
Dry Matter Yield ◽  
Lablab Purpureus ◽  
Forage Crops ◽  
Dry Matter Digestibility ◽  
Time Of Harvest

The influence of the improved drainage broadbed and furrow (BBF), as opposed to the traditional flat seedbed over the growing season on the dry matter yield and nutritive value of Avena sativa, Vigna unguiculata, Lablab purpureus, Vida dasycarpa, Trifolium steudneri and Sesbania sesban were studied on Vertisol. Up to 7 t/ha dry matter yield was recorded for Avena sativa and Lablab purpureus when planted on Vertisols with improved drainage. Dry matter yield of forage crops also increased with advance in stage of maturity or subsequent harvests. On both improved and traditional flat seedbed methods, the chemical analysis of forage crops showed similar declines in crude protein content and in vitro dry matter digestibility (IVDMD) levels as the maturity of forage crops progressed.

scholarly journals Effects of poultry manure and nitrogen rates from two production systems on dry matter yield, and nutritive value of Columbus grass (Sorghum almum)

2021 ◽  
Vol 43 (1) ◽  
pp. 378-384
Author(s):  
M. Baba ◽  
I. Lamir ◽  
I. Abdullahi ◽  
M. S. Sadique
Keyword(s):  
Body Weight ◽  
Dry Matter ◽  
Nutritive Value ◽  
Production Systems ◽  
Poultry Manure ◽  
Forage Quality ◽  
Stem Diameter ◽  
Dry Matter Intake ◽  
Dry Matter Yield ◽  
Nitrogen Rates

The experiment was conducted at screen house of Centre for Dry land Agriculture, Bayero University Kano, in the year 2016. The objective of the study was to determine the effects of poultry manure and nitrogen rates from battery cage and deep litter systems on dry matter yield, morphological characteristics and forage quality of Columbus grass (Sorghum almum). Sorghum almum seeds were sown in 32 plastic containers (dimensions 26 cm height, 28 cm top width and 20cm base width) perforated at the bottom containing 12 kg mixture of sandy and loamy soil in ratio of 1:3. The treatments consisted of poultry manure from two production systems (Battery cage and Deep litter) and nitrogen rates (50, 60, 70 and 80 kgN/ha) in a 2x4 factorial combined in a completely randomized design. Parameters measured were dry matter yield, number of tillers and stem diameter at the late boot stage of Sorghum almum, in addition, forage quality parameters (CP, ADF NDF, digestible dry matter (DDM) dry matter intake as a percentage of body weight (DMI) and relative feud value (RFV)) were also evaluated. The results revealed no significant (p>0.05) difference between battery cage and deep litter fertilized Sorghum almum but deep litter fertilized Sorghum almum had numerically higher dry matter yield (5062.30 kg/ha) than battery cage (4400.40 kg/ha) Number of tillers and stem diameter were found to be significantly greater (p<0.05) in Deep litter (2.56 and5.70mm respectively) compared to Battery cage (1.13 and 5.08mm respectively. Both dry matter yield and stem diameter of Sorghum almum were significantly (p<0.05) highest at 80 kg N/ha. Crude protein was observed to be significant (P<0.05) in Sorghum almum fertilized with poultry manure from deep liter (11.35%) compared with buttery cage (10.05 %). The CP value was observed to increase with increased nitrogen rate with the highest value recorded at 80 kg N/ha (1.71%). Dry matter intake (us a percentage of body weight) was equally greater (p<0.05) in Sorghum album fertilized with deep litter (2.63%) compared to battery cage (2.49%). The value for NDF was significantly higher in sorghum almum fertilized with battery cage, while that of ADF was greater in deep litter it can be concluded that, Sorghum almum fertilized with manure from deep litter system produced better yield and nutritive value.

Defoliation Management of Bahiagrass Germplasm Affects Dry Matter Yield and Herbage Nutritive Value

2009 ◽  
Vol 101 (4) ◽  
pp. 989-995 ◽  
Author(s):  
S. M. Interrante ◽  
L. E. Sollenberger ◽  
A. R. Blount ◽  
U. R. White ◽  
K. Liu ◽  
...  
Keyword(s):  
Dry Matter ◽  
Nutritive Value ◽  
Dry Matter Yield

The Effect of Frequency of Defoliation on the Productivity of Selected Forage Legumes (Stylosanthes hamata, Stylosanthes capitataand Centrosema pascuorum) in the Sub-humid Zone of Nigeria

1995 ◽  
Vol 31 (1) ◽  
pp. 13-19 ◽  
Author(s):  
G. Tarawali ◽  
M. A. Mohamed-Saleem ◽  
P. C. Chionuma
Keyword(s):  
Dry Matter ◽  
Nutritive Value ◽  
Growing Season ◽  
Legume Species ◽  
Dry Matter Yield ◽  
Forage Legumes ◽  
Humid Zone ◽  
Stylosanthes Hamata ◽  
Seed Yields

SummaryThe dry matter yield, nutritive value and persistence of three legume species (Stylosanthes hamata Taub., S. capitata Vog. and Centrosema pascuorum Mart. ex. Benth.) cut at different frequencies during the growing season or only once at the end of the growing season were compared. The shorter cutting intervals enhanced regrowth, but very frequent cutting reduced total dry matter and seed yields. A defoliation interval of three to six weeks is recommended. Generally, S. hamata gave the best performance.Efecto del deshoje en tres legumbres

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