scholarly journals Yield and quality of Maralfalfa forage during long days on three dairy farms in northern Puerto Rico

1969 ◽  
Vol 98 (2) ◽  
pp. 169-177
Author(s):  
Rafael Ramos-Santana ◽  
Yamil Quijano-Cabrera ◽  
Raúl Macchiavelli
Keyword(s):  
Puerto Rico ◽  
Dry Matter ◽  
Forage Quality ◽  
Neutral Detergent Fiber ◽  
Net Energy ◽  
Regression Equations ◽  
Dry Matter Yield ◽  
Yield And Quality ◽  
Harvest Intervals

An experiment was conducted to evaluate the dry matter yield and quality performance of Maralfalfa forage obtained at six harvest intervals (HI; 40, 50, 60, 70, 80, 90 d) on three dairies in northern Puerto Rico during the long day season. The 40-day harvest interval was significantly (P < 0.05) inferior in dry matter yield to those of 60, 80, and 90 days; no significant (P < 0.05) differences in yield were observed among intervals of 40, 50 and 70 days. The 40-day interval showed the highest forage quality as indicated by crude protein content, digestibility in vitro of dry matter and neutral detergent fiber, and estimated net energy, index of relative forage quality and theoretical milk production. Although significant (P < 0.05) differences were observed in some of these criteria between 40- and 50-day harvest intervals, the latter maintained a good nutritional value in contrast to drastic losses in quality observed with the longer harvest intervals under study. The simple regression equations between digestibility in vitro of dry matter and of neutral detergent fiber versus harvest interval showed a decrease in digestibility of 2.7 and 3.0 percentage points for each additional 10 days of harvest interval, respectively.

scholarly journals Yield and quality of Maralfalfa forage during short days in three dairy farms on northern Puerto Rico

2014 ◽  
Vol 98 (1) ◽  
Author(s):  
Rafael Ramos-Santana ◽  
Yamil Quijano-Cabrera ◽  
Raúl Macchiavelli
Keyword(s):  
Puerto Rico ◽  
Dry Matter ◽  
Dairy Farms ◽  
Quality Parameters ◽  
Neutral Detergent Fiber ◽  
In Vitro Digestibility ◽  
Regression Equations ◽  
Dry Matter Yield ◽  
Yield And Quality

An experiment was conducted to evaluate the dry matter yield and quality performance of Maralfalfa forage at six harvest intervals (HI; 40,50,60,70,80, 90d) at three dairy farms in northern Puerto Rico during the short day season. In the majority of the quality parameters under study, the HI of 40 and 50 days were significantly (P menor 0.05) superior to the other HI. Conversely, the dry matter yields from the above mentioned intervals were (P menor 0.05) inferior to those obtained with HI of 70, 80 and 90 days. The 50 and 60 day HI did not differ significantly (P > 0.05) in dry matter yield. The HI of 50 days yielded forage of a quality not very inferior to that of the 40 days (ex., % crude protein 19.1 vs. 16.0), but its dry matter yield was nearly three times higher (P menor 0.05) (3,000 vs. 8,607 kg/ha). The simple regression equations of in vitro digestibility of dry matter and of neutral detergent fiber vs. HI showed a digestibility loss of 5.0 and 6.0 percentage points for each 10 days increment in harvest interval, as the values decreased from 84% and 74% at HI 40 d, to 60% and 45% at HI 90 d, respectively.

scholarly journals Introduction of Digitaria and Cynodon on the semiarid southern Coast of Puerto Rico

1969 ◽  
Vol 78 (3-4) ◽  
pp. 137-145
Author(s):  
Rafael Ramos Santana ◽  
José E. Rodríguez ◽  
Ismael Reyes ◽  
Alvaro Acosta
Keyword(s):  
Puerto Rico ◽  
Crude Protein ◽  
Dry Matter ◽  
The Other ◽  
Forage Grass ◽  
Dry Matter Yield ◽  
Southern Coast ◽  
Short Day ◽  
Harvest Intervals

Nine forage grass introductions (eight Digitaria and one Cynodon) were evaluated at 49-day harvest intervals under irrigation in the semiarid southern region of Puerto Rico. C. dactylon USDAPI 255455 (Coast Cross No. 1) produced the highest dry matter yield (DMY) throughout the seven cuts of each of the 2 years. However, no significant differences were observed between C. dactylon USDAPI 255455 and D. milanjiana 6416 and 6415 during each of the years in which the grasses were evaluated. In terms of the combined DMY of both years, C. dactylon 255455 was significantly superior to the rest of the introductions with the exception of D. milanjiana PRPI 6416. The in vitro organic matter digestibility (IVOMD) of C. dactylon 255455 was significantly less than that of both D. milanjiana 6416 and 6415. On the other hand, D. milanjiana presented the highest IVOMD on the cuts of the long and short day season. The crude protein (CP) content was very similar in most of the introductions under evaluation; however, D. milanjiana PRPI 6416 was the lowest in CP content during the short day season cut.

PREDICTED FORAGE VALUE OF WHOLE PLANT CEREALS

1975 ◽  
Vol 55 (4) ◽  
pp. 975-986 ◽  
Author(s):  
L. J. FISHER ◽  
D. B. FOWLER
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
Dry Weight ◽  
Neutral Detergent Fiber ◽  
Dry Matter Yield ◽  
Acid Detergent Fiber ◽  
Whole Plant ◽  
Digestible Organic Matter ◽  
Forage Value

Dry matter yield, percent dry weight, in vitro digestible dry matter, in vitro digestible organic matter, neutral detergent fiber, acid detergent fiber, ash and hemicellulose contents were determined for spring- and fall-sown common wheat, barley, rye and triticale and spring-sown durum wheat and oats for the period from late boot to maturity. Differences among cultivars and stages of maturity were significant for all parameters. These differences were accompanied by stage of maturity interactions. Consideration of the interrelationships among these parameters revealed that level of in vitro digestible dry matter was reflected in measures of acid detergent fiber and ash or percent dry weight. Further analyses indicated that differences in digestibility due to stage of maturity were primarily reflected by changes in ash or percent dry weight, while differences in digestibility among cultivars were mainly attributable to differences in acid detergent fiber.

Assessment of yield and quality characteristics of alfalfa (Medicago sativa L.) cultivars with different fall dormancy rating

2017 ◽  
Author(s):  
Mustafa Avci ◽  
Rüºtü Hatipoglu ◽  
Selahattin Çinar ◽  
Numan Kiliçalp
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Quality Parameters ◽  
Neutral Detergent Fiber ◽  
Dry Matter Yield ◽  
Acid Detergent Fiber ◽  
Yield And Quality ◽  
Fall Dormancy ◽  
Feed Value ◽  
Medicago Sativa L

This research was conducted to determine performances of seven alfalfa cultivars with different fall dormancy rates in terms of dry matter yield and some quality parameters under Mediterranean conditions throughout the years of 2007-2009. In the study, cultivars were evaluated for dry matter yield (DMY), leaf/stem ratio (LSR), crude protein (CP) content, crude protein yield (CPY), acid detergent fiber (ADF), neutral detergent fiber (NDF), digestible dry matter (DDM) content and relative feed value (RFV). According to average of two year results, there were significant differences among alfalfa cultivars in terms of all characters studied. Mean DMY, LSR, contents of CP, ADF, NDF, DDM and RFV were determined as 18.147 t ha-1, 0.82, 17.4 %, 41.0 %, 49.0 %, 56.9 % and 114. The highest DMY averaged over two years was obtained from cultivar Nimet while lowest one was obtained from Magnum 5. As a dormant cultivar, Magnum 5 was superior in terms of LSR and CP content to the other alfalfa cultivars and it was lower in ADF and NDF content than the others. It was concluded that cultivar Nimet with the highest DMY and CPY yields can be recommended as a non-dormant cultivar for farmers in regions of Turkey with the Mediterranean climate.

scholarly journals Evaluation of Seven Oat (Avena sativa) Genotypes for Biomass Yield and Quality Parameters under Different Locations of Western Oromia, Ethiopia

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Abuye Tulu ◽  
Mekonnen Diribsa ◽  
Worku Temesgen
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
Block Design ◽  
Quality Parameters ◽  
Neutral Detergent Fiber ◽  
In Vitro Digestibility ◽  
Forage Crops ◽  
Yield And Quality ◽  
Digestible Organic Matter

Recognizing the potential and importance of cultivating improved forage crops as a means of tackling the recurrent feed shortage facing the study area, seven oat genotypes were tested in randomized complete block design with three replications across two locations for three growing seasons (2014, 2015, and 2016). The study was aimed to evaluate dry matter (DM) and digestible organic matter yield and nutrient composition of oat genotypes. The study revealed that oat genotypes responded differently for herbage dry matter (DM) and digestible organic matter (OM) yield, and quality parameters in both study locations. Averaged over the seven oat genotypes, herbage DM and digestible OM yield. recorded at Bako were higher than Boneya Boshe location across the study periods. The ash ( P  > 0.05) content did not vary among oat genotypes at both testing locations, while variation was observed for DM, crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), acid detergent lignin (ADL), in vitro digestibility, and metabolizable energy (ME) constituents. In general, genotypes ILRI 6710 and 5453 showed higher herbage DM and digestible OM yield. Moreover, the two genotypes are also higher in their in vitro digestibility value and ME, DM, and CP contents but relatively lower in NDF, ADF, and ADL fiber constituents, and thus, they are recommended for wider cultivation.

scholarly journals Yield and quality of winter common vetch (Vicia sativa L.) haylage depending on sowing method

2011 ◽  
Vol 27 (4) ◽  
pp. 1585-1594 ◽  
Author(s):  
Dj. Karagic ◽  
S. Vasiljevic ◽  
S. Katic ◽  
A. Mikic ◽  
D. Milic ◽  
...  
Keyword(s):  
Dry Matter ◽  
Lignin Content ◽  
Triticum Aestivum L ◽  
Fiber Content ◽  
Forage Yield ◽  
Neutral Detergent Fiber ◽  
Net Energy ◽  
Common Vetch ◽  
Yield And Quality

In order to determine an optimum ratio of vetch and wheat (Triticum aestivum L.) components in their mixture, there has been carried out a four-year trial (autumn 2005 - spring 2009) aimed at the yield and quality of winter vetch haylage. The sowing rate of winter vetch was 120 kg ha-1, while the sowing rate of winter wheat was 0, 15, 20, 25 and 30 kg ha-1. An increased proportion of the cereal in its mixture with vetch significantly decreases the stand lodging, have a positive influence on forage yield, but haylage quality is of a poorer quality. Quality characteristics such as crude protein and lignin content, total digestible nutrients, dry matter intake and relative feed value were highest in monoculture common vetch followed by mixture with the lowest rate of wheat. Neutral detergent fiber content was positively affected by intercropping. There were no significant differences among treatments for acid detergent fiber content, digestible dry matter, and net energy for lactation. The most favorable balance between the haylage yield and quality, as well as the highest CP yield (1482 kg ha-1), was achieved by the mixture of 120 kg ha-1 of the vetch seed and 15 kg ha-1 of wheat.

Dry matter digestibility of rhizoma perennial peanut (A. glabrata) grown for hay in the Caribbean

1969 ◽  
Vol 87 (1-2) ◽  
pp. 19-29
Author(s):  
Teodoro M. Ruiz
Keyword(s):  
Puerto Rico ◽  
Dry Matter ◽  
Viable Alternative ◽  
High Quality ◽  
Dry Matter Digestibility ◽  
Four Seasons ◽  
Harvest Intervals ◽  
The Caribbean ◽  
Relative Decline

The in vitro true dry matter digestibility (IVTDMD) of rhizoma perennial peanut (RPP) forage was evaluated in trials at Lajas (PI no. 276233, 262826, 262833, 262839, and cvs Florigraze and Arbrook) and Juana Díaz (PI no. 276233, 262839, and cv Florigraze), Puerto Rico. At both sites, the forage was cut at six-, nine-, and 12-wk harvest intervals (HI) in each of the four seasons of the year. The digestibility of the forage was not influenced by genotype. Mean IVTDMD across HI and season of growth was 64.3 and 62.5% in the Lajas and Juana Díaz trials, respectively. The IVTDMD decreased in a quadratic manner (P < 0.01) as HI increased from six to 12 weeks. The digestibility of forage harvested at six and nine weeks was similar, with a relative decline of 6.6 and 10.6% as HI increased from nine to 12 weeks in Lajas and Juana Díaz, respectively. Season of growth influenced IVTDMD (P < 0.01). In both trials, the highest digestibility was obtained in forage grown in summer. The effect of season of growth on IVTDMD was greatest in forage harvested at 12 weeks, and least in forage harvested at six weeks. The high digestibility reported among genotypes evaluated suggests they are a viable alternative for the production of high quality hay in the Caribbean tropics. 

MEFLUIDIDE EFFECTS ON YIELD AND QUALITY OF SMOOTH BROMEGRASS

1989 ◽  
Vol 69 (3) ◽  
pp. 823-832 ◽  
Author(s):  
V. S. BARON ◽  
G. A. VAN ESBROECK ◽  
A. C. DICK
Keyword(s):  
Total Yield ◽  
Forage Quality ◽  
Neutral Detergent Fiber ◽  
Growth Stages ◽  
Initial Growth ◽  
Smooth Bromegrass ◽  
Yield Distribution ◽  
Yield And Quality ◽  
Almost All

Smooth bromegrass (Bromus inermis Leyss.) pastures are characterized by poor seasonal yield distribution and low animal productivity during the late season. The plant growth regulator mefluidide (N-[2,4-dimethyl-5[[(trifluoromethyl)sulfonyl]amino]phenyl]acetamide) was applied to smooth bromegrass prior to jointing at 0 (Control), 0.15 (Low) and 0.30 (High) kg ha−1 to effect yield redistribution and improve forage quality in a three-cut system (preboot, cut 2 and cut 3) and in initial stages of growth at preboot, anthesis and hard dough stages. Almost all differences, due to mefluidide treatment, were confined to stages of accumulated growth and to cut 2 of the three-cut regime. Yield distribution was improved over years for both High and Low treatments compared to the Control as a result of decreased preboot and increased cut 2 yields. Total yield for the three cuts was 88% and 83% of the Control for Low and High treatments, respectively. Yield was reduced to 32, 66 and 85% of the Control by the High treatment at preboot, anthesis and hard dough stages of initial growth. Forage quality was generally improved uniformly over stages of initial growth, where leaf to stem ratio increased. Crude protein and in vitro organic matter disappearance (IVOMD) increased, while neutral detergent fiber (NDF), acid detergent fiber (ADF), lignin and cellulose decreased over initial growth stages. IVOMD, NDF, ADF and cellulose increased at cut 2; lignin decreased at cut 3. Mefluidide effectively modified yield distribution in smooth bromegrass, but whether the improvements in forage quality shown through chemical analyses follow through to animal performance must be studied further.Key words: Bromegrass (smooth), mefluidide, yield distribution, forage quality

scholarly journals Agronomic Performance and Nutritive Value of Mucuna Legume (Stilozobium Deeringianum (Bort) Merr.) as Influenced by Cutting Dates in Peruvian Central Coast

2020 ◽  
Vol 3 (3) ◽  
pp. p1
Author(s):  
D. Escudero ◽  
M. G. Echevarria ◽  
Y E. D. Malpartida
Keyword(s):  
Dry Matter ◽  
Nutritive Value ◽  
Forage Yield ◽  
Neutral Detergent Fiber ◽  
Net Energy ◽  
Agronomic Performance ◽  
Central Coast ◽  
Fresh Matter ◽  
Dry Matter Digestibility

The agronomic performance and nutritive value of Mucuna legume (Stilozobium deeringianum (Bort) Merr.) in five stages were evaluated under climatic conditions of Peruvian central coast to estimate optimum stage of use. Five cutting ages were: 21, 42, 63, 84 and 105 days. Crop growing, forage yield, chemical composition, vitro dry matter digestibility and net energy for lactation of Mucuna were evaluated. The optimum cutting age was 84 days with 25633.3 kg. Ha-1 of fresh matter and 6422.6 kg-1 ha-1 of dry matter. In this age crude protein, neutral detergent fiber and acid detergent fiber and in vitro dry matter digestibility contents were 14.94%, 44.80%, 33.15% and 66.12 %. Net energy for lactation was 1.43 Mcal.kg-1. These results show that Mucuna was well adapted to Peruvian Central Coast with high forage yield and nutritive value.

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