In Vitro digestibility, crude protein content, and mineral concentrations of cynodon, brachiarin, and digitaria accessions in a humid tropical region of Puerto Rico

1996 ◽  
Vol 27 (13-14) ◽  
pp. 2687-2697 ◽  
Author(s):  
Rafael Ramos Santana ◽  
Lee R. McDowell
Keyword(s):  
Puerto Rico ◽  
Protein Content ◽  
Crude Protein ◽  
Tropical Region ◽  
In Vitro Digestibility ◽  
Crude Protein Content ◽  
Mineral Concentrations

YIELD AND QUALITY OF SOME KALE-CORN COMBINATIONS

1980 ◽  
Vol 60 (3) ◽  
pp. 807-811 ◽  
Author(s):  
R. S. FULKERSON
Keyword(s):  
Protein Content ◽  
Corn Stover ◽  
Crude Protein ◽  
Dry Matter ◽  
In Vitro Digestibility ◽  
Crude Protein Content ◽  
Yield And Quality ◽  
Row Width

Midas marrowstem kale (Brassica oleracea L.) was grown in different row width associations with United 106 corn (Zea maize L.) in two studies and ensiled in different moisture blends with corn stover in another. Highest dry matter yields were obtained where a single row of kale was grown at 30 cm to the side of a corn row. This combination also provided the lowest moisture content feed and the highest in vitro digestibility and crude protein content. Changing the corn row width had no significant effect upon yield, plant height, in vitro digestibility, kale leaf or corn ear content. Blending kale with corn stover to provide a silage of about 70% moisture increased the digestibility and protein content of the feed and provided a silage that kept well in storage.

Residues and Efficacy With Fluazifop-P in Alfalfa (Medicago sativa)

1992 ◽  
Vol 6 (1) ◽  
pp. 25-30 ◽  
Author(s):  
Douglas J. Doohan ◽  
Gilles Belanger ◽  
Russ R. King ◽  
Jerry A. Ivany
Keyword(s):  
Medicago Sativa ◽  
Protein Content ◽  
Crude Protein ◽  
Dry Matter ◽  
In Vitro Digestibility ◽  
Dry Matter Yield ◽  
Crude Protein Content

Fluazifop-P, applied in the spring or fall and pronamide, applied in the fall only, reduced quackgrass infestation in established alfalfa and increased the dry matter yield of alfalfa. Herbicides did not improve alfalfa in vitro digestibility or crude protein content. Average residues of fluazifop-P in alfalfa treated with rates of 0.25 or 0.5 kg ai ha–1, were 0.1 mg kg–1when harvested 280 d after application, and 0.06 mg kg–1when harvested 295 d after application. Average residues in alfalfa harvested 41 and 55 d after application were 0.13 mg kg–1and 0.1 mg kg–1, respectively, with a 0.25 kg ha–1treatment and 0.19 mg kg–1and 0.05 mg kg–1, respectively, with a 0.5 kg ha–1treatment.

scholarly journals In vitro fermentation and chemical constituents of urea-molasses feed - blocks made with different binders for ruminants.

2021 ◽  
Vol 39 (2) ◽  
pp. 142-149
Author(s):  
O. A. Isah
Keyword(s):  
Fatty Acids ◽  
Protein Content ◽  
Crude Protein ◽  
Volatile Fatty Acids ◽  
Chemical Constituents ◽  
Cassava Starch ◽  
In Vitro Digestibility ◽  
Crude Protein Content ◽  
Significant Difference

This study was carried out to assess the chemical contents, in vitro break down, volatile fatty acids, NH3¬-N and methane concentration of urea- molasses feed - block (UMFB) using different binders. Four feed - blocks were formulated as: UMFB A (Cement only), UMFB B (cement + clay), UMFB C (cement + cassava starch), and UMFB D (cassava starch + clay). The feed - blocks were incubated in vitro for 48 hours to assess gas production and other in vitro- ecology parameters. Results of chemical analysis revealed that UMFB C (21.70%), and B (21.65%) had highest (p< 0.05) crude protein content while UMFB D (18.62%) had lowest value. Intermediate crude protein content was recorded for UMFB A (19.58%). However, highest (p<0.05) values of ADF (16.8%) and ADL (15.5%) were recorded for UMFB D. Similar value of ADF (16.70%) and ADL (15.3%) were recorded also for UMFB B. The NDF value of feed - block A (34.6%) was highest (p<0.05) while lowest value of NDF was recorded for UMFB D (32.1%). Production of volatile fatty acids indicated that propionic acid (30.5%), oleic acid (11.3%,) and lactic acid (36.5%) were highest (p<0.05) for UMFB D. Concentration of NH3-N was highest in UMFB B while significant difference (p>0.05) was not observed in the pH and methane values for various UMFB. Highest in vitro digestibility of organic matter was observed in UMFB D. The study showed that the various feed - blocks could serve as a sustainable supplement during dry season and period of scarcity for the ruminants.

scholarly journals Pruning as a strategy to improve the nutritional value of the aerial parts of industry- purpose cassava clones

2020 ◽  
Vol 21 ◽  
Author(s):  
Francisco Duarte FERNANDES ◽  
Roberto GUIMARÃES JÚNIOR ◽  
Eduardo Alano VIEIRA ◽  
Josefino de Freitas FIALHO ◽  
Juaci Vitória MALAQUIAS
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Dry Matter ◽  
Nutritional Value ◽  
Block Design ◽  
In Vitro Digestibility ◽  
Crude Protein Content ◽  
Aerial Parts ◽  
Starch Yield

ABSTRACT The present study aimed to assess the influence of pruning on the starch yield and nutritional value of the aerial parts of industry- purpose cassava clones adapted to the Cerrado region of Central Brazil. Four elite clones were submitted to either total shoot pruning or no pruning at 12 months after planting, in a randomized complete block design with three replications. Plants were evaluated eighteen months after planting. Clone 330/09 presented the highest root yield with and without pruning, and also higher starch yield, green and dry mass yields, and crude protein yield of aerial parts without pruning. In plants that were pruned, clones 117/09 and 359/09 stood out, with higher yields of the crude protein content of the aerial part and a higher in vitro digestibility of the dry matter. These clones are therefore an option when using the aerial parts of cassava in animal feed. Total pruning at 12 months of age significantly increased the crude protein content and in vitro digestibility of the dry matter of the aerial parts, improving its nutritional value. Pruning did, however, reduce the starch yield of the roots and the total yields of the roots and aerial parts.

scholarly journals Yield and Nutritive Value of Sorghum, Maize and Soybean Forages Harvested in Southwestern Puerto Rico.

1969 ◽  
Vol 63 (3) ◽  
pp. 400-411
Author(s):  
D. G. St. Louis ◽  
J. A. Arroyo-Aguilú ◽  
A. Ramírez-Ortiz ◽  
R. E. McDowell
Keyword(s):  
Zea Mays ◽  
Puerto Rico ◽  
Glycine Max ◽  
Protein Content ◽  
Crude Protein ◽  
Nutritive Value ◽  
Grain Sorghum ◽  
Crude Protein Content ◽  
Forage Sorghum ◽  
High Yields

Six varieties of forage sorghum (Sorghum bicolor) and sorghum X sudangrass hybrids (S. bicolor X S. sudanese), six varieties of grain sorghum (S. bicolor) and three varieties each of maize (Zea mays) and soybean (Glycine max) were grown in 1.2 x 3.7 m plots at the Lajas Experiment Substation. All plots were harvested in the boot, flower and dough stages. Ratoons of the sorghum varieties were also harvested after 45 days of regrowth until the stands diminished. The forage sorghums and maize had higher yields of green and dry material than the grain sorghums. However, only the grain sorghums showed any significant increase in yield as the crop matured. All crops decreased in nutritive value with advance in age. In general, maize was higher in nutritive value than the forage sorghums. Results indicated that forage sorghums can be recommended due to high yields of good quality forage on irrigated lands on the south coast. However, results with soybean forage were poor. It does not appear feasible to produce soybeans to enhance the crude protein content of forage pellets.

THE IN VITRO DIGESTIBILITY AND PROTEIN CONTENT OF LEAF AND STEM PORTIONS OF FORAGES

1965 ◽  
Vol 45 (4) ◽  
pp. 321-331 ◽  
Author(s):  
D. N. Mowat ◽  
R. S. Fulkerson ◽  
W. E. Tossell ◽  
J. E. Winch
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Grass Species ◽  
In Vitro Digestibility ◽  
Plant Parts ◽  
Stages Of Growth ◽  
Dry Matter Digestibility ◽  
Advanced Stages ◽  
Rate Of Decline

The in vitro dry matter digestibility (I.V.D.) of the immature stems of timothy, orchardgrass, and bromegrass was higher than that of the leaves. However the rate of decline of digestibility with advancing maturity was greater with stems. At head emergence the I.V.D. of the leaves of orchardgrass was similar to that of the stems. Wide differences existed, though, in the I.V.D. of leaf and stem fractions of orchardgrass at more advanced stages of growth. Digestibilities of the plant parts of both timothy and bromegrass were not greatly different at any growth stage.The digestibility of leaves of alfalfa decreased only slightly as the season progressed. However, the I.V.D. of the stems declined rapidly early in the season. Unlike the grasses, the stems of alfalfa never attained as high a digestibility as the leaves at the early growth stages.The crude protein content of both leaf and stem portions of the various grass species was similar.As the season progressed, orchardgrass had the highest leaf to stem ratio and bromegrass the lowest. Even within a species, leaf content was a rather poor indicator of digestibility.

Seasonal production of Andropogon gayanus

1971 ◽  
Vol 77 (1) ◽  
pp. 47-52 ◽  
Author(s):  
R. J. Haggar ◽  
M. B. Ahmed
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Dry Matter ◽  
Crude Protein Content ◽  
Wet Season ◽  
Mature Leaves ◽  
Dry Matter Digestibility ◽  
Andropogon Gayanus ◽  
The Mean

SummaryThe crude protein content and in vitro dry-matter digestibility (I.V.D.) of leaves and stems of Andropogon gayanus, grouped into four different age categories, were measured at weekly intervals during the secondhalf of the 1968 wet season. The crude protein content of all categories of leaf and stem rose to a maximumat ear emergence; significant reductions occurred thereafter, especiallyin the younger categories of leaf and stem. At any point in time the younger leaves and stems contained significantly more crude protein than the older leaves and stems.Although the mean crude protein content of each stem category was significantly lower than the corresponding leaf category, the young, elongating stems had a significantly higher crude protein content than the older, mature leaves at the time of ear emergence.The mean I.V.D. of all leaf and stem categories was highest at the start of the recording period. At ear emergence the I.V.D. of the young elongating stems was at least as high as the mature leaves. After ear emergence the I.V.D. of the stems fell more rapidly than the leaves.The results support the principle of cutting at ear emergence to achieve maximum yields of digestible nutrients.

Sign in / Sign up

Export Citation Format

Share Document