Agronomic characteristics, silage quality, intake and digestibility of five new Brazilian sorghum cultivars

2014 ◽  
Vol 153 (2) ◽  
pp. 371-380 ◽  
Author(s):  
A. L. A. NEVES ◽  
R. D. SANTOS ◽  
L. G. R. PEREIRA ◽  
G. F. OLIVEIRA ◽  
C. B. SCHERER ◽  
...  
Keyword(s):  
Dry Matter ◽  
Nutritive Value ◽  
Block Design ◽  
The Other ◽  
High Yield ◽  
Agronomic Characteristics ◽  
North Eastern ◽  
Silage Quality ◽  
Semi Arid

SUMMARYForage sorghum (FS) (Sorghum bicolor(L.) Moench) is a key feed source for ruminants owing to its high yield and drought tolerance. The present paper assessed the agronomic characteristics, silage quality, intake and digestibility of five new Brazilian sorghum cultivars (BRS Ponta Negra variety, BRS 655 hybrid, BR 601 hybrid, BRS 506 variety and BRS 610 hybrid). Forages were grown (randomized complete block design) in a typical Brazilian north-eastern semi-arid climate, irrigated with 267 mm water, harvested as plants reached the soft dough stage of grain maturity and ensiled under laboratory and farm conditions. Apparent digestibility of the silages was determined using 25 Santa Inês lambs. BRS 506 outperformed the other cultivars in dry matter (DM) and digestible DM yields/ha. BRS 506 exhibited the lowest neutral detergent fibre (NDF) and acid detergent fibre (ADF) contents and the highestin vitrodry matter digestibility (IVDMD) of the cultivars examined. BRS 655 produced the lowest level of lactic acid and the highest pH and ammonia-N concentration. There was no difference in intake or digestibility of DM among cultivars. Silages produced from BRS Ponta Negra resulted in higher crude protein (CP) intake than BRS 655. Silages made from BRS 506 and BRS Ponta Negra resulted in a greater digestibility of CP than those produced from BRS 655. Intake of NDF in silages generated from BRS Ponta Negra and BRS 610 was higher than that found in other cultivars. Although an average Brazilian North-eastern FS exhibited similar characteristics to other cultivars grown in dry regions around the world, the results indicated that BRS 506 had a yield advantage and higher nutritive value under Brazilian semi-arid conditions as compared to the other cultivars examined.

Chemical composition and in vitro dry matter digestibility of parasitic plants reflect that of indigenous browse trees

2003 ◽  
Vol 2003 ◽  
pp. 173-173
Author(s):  
O. R. Madibela ◽  
M. Letso ◽  
B. Makoba ◽  
O. Seitshiro
Keyword(s):  
Protein Intake ◽  
Crude Protein ◽  
Dry Matter ◽  
Nutritive Value ◽  
Parasitic Plants ◽  
Dry Matter Digestibility ◽  
Mineral Levels ◽  
Interesting Alternative ◽  
Semi Arid

Mistletoes are common parasitic plants that attach on branches of Acacia species, Boscia albitrunca, Ziziphus mucronata and other trees of semi-arid Botswana. These plants form an interesting alternative and additional feed resource, which could increase both mineral and protein intake of ruminants. Previous studies (Madibela et al., 2000, 2002) have shown that these parasitic plants have high crude protein and mineral levels than what is expected of natural grasses. The hypothesis is that the higher the nutritive value of host browse trees the higher it is in the parasitic plants.

In situ degradability of dry matter and neutral-detergent fibre of thorn scrubland forage consumed by goats in the semi-arid region of north Mexico

2004 ◽  
Vol 79 (3) ◽  
pp. 505-511 ◽  
Author(s):  
R. A. S. Juárez ◽  
E. R. Montoya ◽  
C. G. Nevarez ◽  
S. M. A. Cerrillo ◽  
F. L. Mould
Keyword(s):  
Arid Region ◽  
Dry Matter ◽  
Nutritive Value ◽  
Block Design ◽  
Wet Season ◽  
Neutral Detergent Fibre ◽  
Randomized Block Design ◽  
Dry Seasons ◽  
Semi Arid Region ◽  
Semi Arid

AbstractThree goats provided with oesophageal and ruminal cannulae were used to determine variations in dry matter (DM) and neutral-detergent fibre (NDF) degradability of the forage consumed when grazing thorn scrubland in the semi-arid region of north Mexico, during two consecutive dry and wet periods. Ingesta samples were incubated intraruminally, the data were fitted to the exponential equation P = a + b (l - e-ct) and statistically analysed using a randomized-block design. Organic matter and crude protein (CP) contents were higher (P < 0.05) in the wet seasons. Values of NDF were similar in dry and wet season of both years whereas higher numerical values of acid-detergent fibre (ADF), lignin and cellulose were registered in the dry seasons. DM and NDF degradabilities after 24 and 48 h of ruminal incubation were higher (P < 0.05) in the wet seasons. Higher values (P < 0.05) in DM and NDF bag losses at zero time (A fraction) were registered in the two wet seasons. The insoluble but fermentable DM and NDF (B fractions) were higher (P < 0.05) in the 1999 wet season and variable in the rest of the studied period. Numerically higher values of DM and NDF c fraction were found in wet periods, whereas DM and NDF potential degradabilities were higher (P < 0.05) in the wet season in 1999 and similar across seasons in 2000. Lowest (P < 0.05) contents of CP in grazed forage, DM and NDF degradabilities after 48 h of ruminal incubation, and A, and B, and c fractions were observed in the dry seasons. Thus, these results may be related to both the lower feeding value of forage consumed by the animals and lower performance of livestock during this period. Then, the DM and NDF degradability after 48 h, together with the insoluble but fermentable matter and the c fraction permit the nutritive value of the forage consumed by grazing goats to be accurately described.

scholarly journals Nutritional characteristics and in vitro digestibility of silages from different corn cultivars harvested at two cutting heights

2011 ◽  
Vol 40 (4) ◽  
pp. 708-714 ◽  
Author(s):  
H. Caetano ◽  
M.D.S. Oliveira ◽  
J.E. Freitas Júnior ◽  
A.C. Rêgo ◽  
M.V. Carvalho ◽  
...  
Keyword(s):  
Dry Matter ◽  
Nutritive Value ◽  
Block Design ◽  
In Vitro Digestibility ◽  
Dry Matter Digestibility ◽  
Nutritional Characteristics ◽  
Random Block ◽  
Random Block Design ◽  
Cutting Height

The objective of this study was to evaluate the nutritional traits and in vitro digestibility of silages from different corn cultivars harvested at two cutting heights. It was evaluated 11 cultivars (Dina 766, Dina 657, Dina 1000, P 3021, P 3041, C 805, C 333, AG 5011, FO 01, Dina co 9621 and BR 205) harvest 5 cm above ground (low) and 5 cm below the intersection of the first ear (high). It was used a random block design (three blocks), arranged in a 11 × 2 factorial scheme. Silages from plants harvested at high cutting height presented average content of dry matter significantly superior to silages from plants harvested at low height. Cultivars FO 01, AG 5011, Dina co 9621 and Dina 766 presented greater content of crude protein than cultivars C 805, P 3041 and P 3021, which presented the lowest contents of this nutrient. The raise in the cut height increased in vitro dry matter true digestibility coefficients and in vitro dry matter digestibility of silage evaluated. The increase in cut height improved nutritive value of silages by decreasing concentrations of fibrous fractions and increasing in vitro dry matter digestibility.

scholarly journals In vitro and in sacco digestibility of almond hulls

2021 ◽  
Vol 159 (7-8) ◽  
pp. 615-621
Author(s):  
K. L. Swanson ◽  
H. M. Bill ◽  
J. Asmus ◽  
J. M. Heguy ◽  
J. G. Fadel ◽  
...  
Keyword(s):  
Dry Matter ◽  
Nutritional Value ◽  
Nutritive Value ◽  
Gas Production ◽  
Metabolizable Energy ◽  
The Other ◽  
Neutral Detergent Fibre ◽  
True Digestibility ◽  
In Sacco

AbstractThe aim of this study was to determine the in vitro digestibility and in sacco disappearance of dry matter (DM) and neutral detergent fibre (NDF) in total almond hulls (TAH), pure almond hulls (PAH) or Debris. The TAH were used because there are no data on the effect of debris (non-hull material) on the nutritional value of almond hulls. Twelve samples of commercial almond hulls were used, with one subsample representing the TAH and the other subsample hand sorted to separate the hulls (PAH) from Debris. Gas production and Ankom Daisy method were used to determine in vitro digestibility, while two rumen-fistulated cows were used to measure in sacco disappearance of PAH and TAH. For in vitro digestibility, both PAH and TAH were more digestible and had greater gas production than Debris. The PAH had greater in vitro true digestibility on a DM basis and NDF digestibility at 48 and 72 h compared with TAH. Nonpareil hulls provided greater metabolizable energy (ME) concentration when compared with other almond varieties, with PAH supplying numerically more ME than TAH for both varieties. For in sacco disappearance, PAH had greater DM and NDF disappearance along with a greater rate of disappearance for NDF compared with TAH. This research demonstrated that Debris is highly indigestible; therefore, hulling, agronomic and harvesting practices should be focused on reducing Debris in commercial almond hulls to improve their nutritive value as a feedstuff for livestock.

scholarly journals The effect of a mixture of Lactobacillus strains on silage quality and nutritive value of grass harvested at four growth stages and ensiled for two periods

2013 ◽  
Vol 22 (1) ◽  
pp. 115-126 ◽  
Author(s):  
Johan De Boever ◽  
Elien Dupon ◽  
Eva Wambacq ◽  
Joos Latré
Keyword(s):  
Cell Walls ◽  
Dry Matter ◽  
Nutritive Value ◽  
Growth Stages ◽  
Silage Fermentation ◽  
Aerobic Stability ◽  
Fermentation Quality ◽  
Silage Quality

 The effect of adding an inoculant containing Lactobacillus buchneri, L. plantarum and L. casei to wilted perennial ryegrass, harvested at four growth stages and ensiled for either 60 or 150 d on silage fermentation quality, chemical composition, rumen degradability of neutral detergent fibre (NDF) and organic matter (OM) and in vitro OM digestibility (OMd) was studied. Compared to the control silage, more sugars were fermented to lactic and acetic acid with the inoculant, resulting in a lower pH, less dry matter losses and protein degradation and a better aerobic stability. The effects of the additive on fermentation quality were more pronounced after 150 than after 60 d of ensiling, because the quality of the control silage was worse after long ensiling period. The treatment lowered NDF content of grass harvested at the first two growth stages by degrading cell walls to complex sugars, but had no effect on NDF degradability of the silage. The inoculant had no effect on rumen OM degradability nor on OMd after the short ensiling period, but increased the rumen OM degradability for the first two growth stages and OMd for all growth stages after long ensiling period.

scholarly journals Impact of water deficit in the relationship among alfalfa traits

2020 ◽  
Vol 36 (3) ◽  
Author(s):  
Iara Gonçalves dos Santos ◽  
Paulo Eduardo Teodoro ◽  
Cosme Damião Cruz ◽  
Reinaldo de Paula Ferreira
Keyword(s):  
Plant Height ◽  
Water Deficit ◽  
Dry Matter ◽  
Nutritive Value ◽  
Block Design ◽  
Neutral Detergent Fiber ◽  
Coefficient Of Determination ◽  
Full Irrigation ◽  
The Relationship

This study aimed to evaluate the relationship among traits related to yield and nutritive value of alfalfa genotypes grown under deficit and full irrigation conditions. Seventy-seven alfalfa genotypes were evaluated in two different cuts, the first one with full irrigation, and the second, with water deficit. A randomized block design with three replications was used. The evaluated traits were vigor, plant height, dry matter biomass, stem-to-leaf ratio, dry matter percentage, leaf and stem protein contents, in vitro dry matter digestibility, neutral detergent fiber, acid detergent fiber, and lignin. Significant interaction between genotypes and environments was reported for vigor, plant height, and lignin. The correlation between traits and path analysis of dry matter biomass was performed for each cut, aiming to identify auxiliary traits for indirect selection. Water availability did not alter the phenotypic and genotypic correlations, only their magnitudes. Regardless of the environment, plant height is one of the most promising traits for the selection of alfalfa genotypes with higher dry matter biomass since it showed a high direct effect in the same sense of its phenotypic correlations. However, the coefficient of determination obtained by the model applied to full irrigation was higher than that of the water-deficit environment, indicating the importance of variables not included in this study in the determination of alfalfa dry matter biomass under dry conditions.

scholarly journals Effect of Lactic Acid Bacteria on the Nutritive Value and In Vitro Ruminal Digestibility of Maize and Rice Straw Silage

2020 ◽  
Vol 10 (21) ◽  
pp. 7801
Author(s):  
Tabita Dameria Marbun ◽  
Kihwan Lee ◽  
Jaeyong Song ◽  
Chan Ho Kwon ◽  
Duhak Yoon ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Rice Straw ◽  
Dry Matter ◽  
Nutritive Value ◽  
Positive Control ◽  
Negative Control ◽  
The Other ◽  
Silage Additives

A study was conducted to determine the effects of lactic acid bacteria (LAB) on nutritive value and in vitro rumen digestibility of maize and rice straw silages. Two identical experiments were carried out for each of the two silages. A total of five treatments were used for each experiment: (1) negative control (NC); (2) positive control (PC); (3) Lactobacillus plantarum (LPL); (4) L. paracasei (LPA); and (5) L. acidophilus (LA). Each treatment was then divided into four ensiling periods: 3, 7, 20, and 40 days with three replications. The LPL treatment had significantly higher dry matter (DM), lower ammonia-N, and a lower number of fungi on maize silage after 40 days (p < 0.05). On the other hand, the LA treatment increased DM and CP content, reduced NDF and ADF contents compared to NC, and also produced more lactic acid compared to the other LAB-treated rice straw silages. Results of the in vitro rumen fermentation of maize silages showed no significant differences in DMD after LAB inoculation. However, higher DMD and ruminal ammonia-N were shown by rice straw ensiled with L. acidophilus. In conclusion, silage additives, which could improve the ensiling process of maize and rice straw, appeared to be different and substrate specific.

scholarly journals SWARD STRUCTURE AND NUTRITIVE VALUE OF UROCHLOA RUZIZIENSIS UNDER NITROGEN AND POTASSIUM FERTILISATION

2017 ◽  
Vol 30 (1) ◽  
pp. 220-229
Author(s):  
KARLA RODRIGUES DE LIMA ◽  
◽  
CARLOS AUGUSTO BRANDÃO DE CARVALHO ◽  
FLAVIO HENRIQUE VIDAL AZEVEDO ◽  
PEDRO ANTONIO MUNINZ MALAFAIA ◽  
...  
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Nutritive Value ◽  
Lignin Content ◽  
Accumulation Rate ◽  
Block Design ◽  
In Vitro Digestibility ◽  
Linear Effect ◽  
Neutral Detergent Fibre

ABSTRACT This study aimed to assess the effect of nitrogen (N) and potassium (K) fertilisation on the forage accumulation and nutritive value of Urochloa ruziziensis during the summer of 2010/2011 and autumn, winter, spring and summer of 2011/2012. A complete randomised block design with four treatments (0, 120, 240 and 360 kg ha-1 year-1 N and K2O) and five replicates were used. The data were analysed under the PROC MIXED of SAS®. The following variables were evaluated: sward height; forage mass; forage bulk density; percentages of leaf blade dry matter, stem dry matter, and dead material dry matter; leaf blade:stem ratio; contents of dry matter and crude protein; in vitro digestibility of dry matter; neutral detergent fibre content; and lignin content of Urochloa ruziziensis. There was an interaction between the N and K levels of fertilisation and the season for all variables. In addition, there was a positive linear effect of the N and K levels of fertilisation on the forage accumulation rate, the crude protein content and the in vitro digestibility of dry matter and a negative linear effect these levels on the neutral detergent fibre and lignin contents during the spring and summer of 2011/2012. N and K fertilisation and the climate changes characteristic of each season jointly affected the accumulation and nutritive value of Urochloa ruziziensis. N and K fertilisation up to 360 kg ha-1 year-1 improved the forage accumulation and nutritive value of Urochloa ruziziensis.

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