scholarly journals Variation for in vivo digestibility in two maize hybrid silages

2017 ◽  
Vol 63 (No. 1) ◽  
pp. 17-23
Author(s):  
R. Loučka ◽  
Y. Tyrolová ◽  
F. Jančík ◽  
P. Kubelková ◽  
P. Homolka ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Dry Matter ◽  
Stay Green ◽  
Maize Hybrid ◽  
Energy Value ◽  
Neutral Detergent Fibre ◽  
Whole Plant ◽  
Fermentation Quality ◽  
Nutrients Digestibility

The experiment was aimed at confirming that silages made of two very similar hybrids could have different in vivo digestibility, primarily amylase-treated neutral detergent fibre digestibility (aNDFD), which could strongly influence the result of the calculation of energy value of fodder. Both the stay-green whole-plant types were grown at the same locality during two years and harvested at the same days at two-thirds milk line maturity. In the two subsequent years, silages without preservatives were made of both hybrids tested. All silages were fermented for 90 days. The in vivo digestibility of silages was measured in digestion trials with six sheep. All silages had good fermentation quality, and no differences in that regard were found between hybrids or years (P > 0.05). Hybrid had stronger effect than year on all indicators of chemical composition and digestibility of nutrients other than dry matter (DM). Hybrid significantly affected all indicators measuring chemical composition and digestibility of nutrients other than DM (P = 0.18). The aNDFD was closely correlated with all other measures of nutrients digestibility (P < 0.01). The results confirm the importance of breeding hybrids and analyzing silages for aNDFD.

scholarly journals Digestibility of Ensiled Maize Hybrids Differing by Maturity and Endosperm Type

2018 ◽  
Vol 49 (2) ◽  
pp. 87-92
Author(s):  
R. Loučka ◽  
P. Homolka ◽  
Y. Tyrolová ◽  
F. Jančík ◽  
V. Koukolová ◽  
...  
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
Correlation Coefficients ◽  
Maturity Group ◽  
Early Maturity ◽  
Maize Hybrids ◽  
Acid Detergent Fibre ◽  
Fermentation Quality ◽  
Nutrients Digestibility

Abstract Selected maize hybrids were analyzed according to the in vivo digestibility of the silage. Eight tested hybrids were grown, harvested, and ensiled under identical conditions. The effect of earliness (early maturity group FAO 230–260 vs moderately early maturity group FAO 290–340) significantly (P < 0.05) affected the chemical composition, fermentation quality, and digestibility of neutral and acid detergent fibre. Type of kernel endosperm (dent vs flint) differed by digestibility of nutrients. Digestibility of dry matter, organic matter, and neutral detergent fibre was the highest for silage of the dent hybrid FAO 250 (73.7, 75.7, and 67.6%, respectively) and these digestibility values were significantly (P < 0.05) lower for silage of the dent hybrid FAO 320 (61.1, 63.4, and 51.4%, respectively). It was concluded that the digestibility differs mainly in dent-type hybrids. All correlation coefficients between the digestibility values were significantly (P < 0.05) high.

The effect of forage maize hybrid type on in vivo and in vitro dry matter digestibility

2003 ◽  
Vol 2003 ◽  
pp. 190-190
Author(s):  
A. Kamalak ◽  
O Ozay ◽  
H. Gizir
Keyword(s):  
Chemical Composition ◽  
Milk Yield ◽  
Dry Matter ◽  
Forage Maize ◽  
Maize Hybrid ◽  
Hybrid Type ◽  
Dry Matter Digestibility

The digestibility values of forages have long been recognised as an important parameter affecting both milk yield and growth of ruminants. Several methods (in vivo and in vitro) are used to determine digestibility of forages. The aim of this experiment was to determine the effect of chemical composition of silages on the in vivo and in vitro DMD of maize silages.

scholarly journals Utilization of a novel feedstuff: effects of additives on the fermentation characteristics, chemical composition and in vitro digestibility of tetraploid black locust (Robinia pseudoacacia) silage

2019 ◽  
Vol 49 (7) ◽  
Author(s):  
Zhihao Dong ◽  
Junfeng Li ◽  
Lei Chen ◽  
Siran Wang ◽  
Tao Shao
Keyword(s):  
Lactic Acid ◽  
Chemical Composition ◽  
Lactobacillus Plantarum ◽  
Dry Matter ◽  
Neutral Detergent Fiber ◽  
In Vitro Digestibility ◽  
Fermentation Products ◽  
Fermentation Quality ◽  
Tetraploid Black Locust

ABSTRACT: This study was conducted to evaluate the effects of additives on the fermentation characteristics, chemical composition and in vitro digestibility of tetraploid black locust (TBL). The TBL leaves silage was either untreated (control) or treated with 1 × 106 cfu/g FM Lactobacillus plantarum (L), 1% glucose (G), 3% molasses (M), a combination of 1% glucose and Lactobacillus plantarum (L+G), or a combination of 3% molasses and Lactobacillus plantarum (L+M). Fermentation quality, chemical composition and nutrient digestibility were then analyzed. Ethanol and acetic acid concentrations were the dominant fermentation products in all silages except L+M silage. The L, G and L+G treatments failed to influence the fermentation. The M treatment increased (P<0.05) the lactic acid concentration and lowered (P<0.05) the pH when compared with control silage. The best fermentation properties were observed in L+M silage, as indicated by the dominance of lactic acid over ethanol in fermentation products. The M and L+M silages exhibited higher (P<0.05) dry matter, and M silage showed higher residual water-soluble carbohydrates than the control. Ensiling increased (P<0.05) the in vitro dry matter, neutral detergent fiber and acid detergent fiber degradability of TBL. Among the silages, M silage had the highest levels of dry matter, neutral detergent fiber and acid detergent fiber degradability. The obtained results suggested that application of lactic acid bacteria together with 3% molasses could be an effective strategy to prevent the occurrence of ethanol fermentation and improve fermentation quality of TBL silage; addition of fermentable sugars to TBL improves nutrient availability to ruminants.

Inoculant effects on the fermentation quality, chemical composition and saponin content of lucerne silage in a mixture with wheat bran or corn husk

2018 ◽  
Vol 58 (12) ◽  
pp. 2249 ◽  
Author(s):  
Jipeng Tian ◽  
Risu Na ◽  
Zhu Yu ◽  
Zhongkuan Liu ◽  
Zhenyu Liu ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Wheat Bran ◽  
Dry Matter ◽  
Ammonia Nitrogen ◽  
Application Rate ◽  
Corn Husk ◽  
Application Rates ◽  
Saponin Content ◽  
Fermentation Quality ◽  
By Products

This study evaluated the effects of lactic acid bacteria inoculants on the fermentation quality and chemical composition of lucerne silage (A), a mixture of lucerne and wheat bran (A+WB), and a mixture of lucerne and corn husk (A+CH). The application rates of wheat bran in A+WB or corn husk in A+CH were 10%, 15%, and 20% of the whole fresh material. These different materials were treated with distilled water (Control), Lactobacillus plantarum 1 (LAB1), L. plantarum 2 (LAB2), L. plantarum 8 (LAB8) or a commercial inoculant (LALMAND) at a rate of 106 CFU/g of fresh forage. As the application rate of the by-products increased, the dry matter, lactate, propionate, and neutral detergent fibre (after heat-stable amylase treatment) contents increased, and the pH and the acetate, ammonia nitrogen, crude protein, and non-fibre carbohydrate contents decreased. The A+WB showed better fermentation quality than A and A+CH. The inoculants had beneficial effects on the silages, but the effects varied. The results indicate that the use of LAB1, LAB2, or LAB8 was better with A, whereas LALMAND was preferable for use with A+WB or A+CH. The saponin content decreased during ensiling and was positively correlated with the pH and the acetate and ammonia nitrogen content but negatively correlated with the dry matter content. The increase in the application rate of by-products and the addition of LALMAND further decreased the saponin content. Overall, the combined effects of the inoculants, by-products, and different application rates improved the fermentation quality and chemical composition and led to greater a reduction of saponin in lucerne silage, but the selection of suitable types and application rates of by-products and inoculants is essential.

Degradation Characteristics of Wheat, Barley and Oats Straws Untreated and Treated with Ammonia in an Oven

1988 ◽  
Vol 1988 ◽  
pp. 85-85
Author(s):  
Jeannie M Everington ◽  
D I Givens
Keyword(s):  
Elevated Temperature ◽  
Chemical Composition ◽  
Dry Matter ◽  
Nutritive Value ◽  
Good Prediction ◽  
Ammonia Treatment ◽  
Oven Method ◽  
Metabolisable Energy

Compared with stack treatment the literature contains little information on the nutritive value of cereal straws treated with ammonia in “ovens” at elevated temperature. Recently,Mason et al (1987) and Givens et al (1987) have studied in vitro and in vivo respectively the effect on chemical composition, digestibility and energy value of treating barley, wheat and oat straws with ammonia by the oven method. Substantial changes in chemical composition and nutritive value were found as a result of treatment.Reid and Ørskov (1987) have suggested that the dry matter (DM) degradation characteristics of straw as measured by the nylon bag technique provide a good prediction of its nutritive value. The aims of the experiment reported here were therefore to examine using the straws of Mason et al (1987), the effect of oven ammonia treatment on the DM degradation characteristics and to assess whether these parameters could be used to predict the metabolisable energy (ME) content of the straws.

scholarly journals Use of Undigested NDF for Estimation of Diet Digestibility in Growing Pigs

Animals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2007
Author(s):  
Marco Battelli ◽  
Luca Rapetti ◽  
Andrea Rota Graziosi ◽  
Stefania Colombini ◽  
Gianni Matteo Crovetto ◽  
...  
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
Growing Pigs ◽  
Detergent Solution ◽  
Collection Method ◽  
Neutral Detergent Fibre ◽  
Pre Treatment ◽  
Internal Marker

Undigested neutral detergent fibre (uNDF) is commonly used as an internal marker for the estimation of diet digestibility in ruminants. This work aimed to verify (i) whether the in vivo method with uNDF could be used to evaluate diet digestibility in growing pigs, and (ii) whether pre-treating the samples with neutral detergent solution (NDS) and α-amylase improves the accuracy of the estimates. Samples from a previously published work of two diets with known in vivo digestibility values estimated by the total faecal collection method and 16 individual samples of faeces were used. For each sample, four Ankom F57 bags were weighed. Before the incubation, two F57 bags were pre-treated with NDS and α-amylase. All the samples were incubated for 240 h in the Ankom DaisyII incubator and then analysed for their uNDF contents. Dry matter, organic matter, and neutral detergent fibre digestibilities were estimated using the uNDF contents, and the results were compared with those of the former study. The digestibility values obtained using the uNDF method with pre-treatment were not statistically different from those determined with the total faecal collection. On the contrary, the uNDF method without the pre-treatment could not satisfactorily predict the digestibilities of pig diets.

scholarly journals Leaf and stem chemical composition of divergent alfalfa cultivars

2011 ◽  
Vol 27 (4) ◽  
pp. 1505-1511 ◽  
Author(s):  
D. Milic ◽  
Dj. Karagic ◽  
S. Vasiljevic ◽  
A. Mikic ◽  
B. Mijic ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Dry Matter ◽  
Unit Area ◽  
Domestic Animals ◽  
Quality Parameters ◽  
Plant Part ◽  
Field Crop ◽  
Plant Leaves ◽  
Perennial Crop ◽  
Whole Plant

Alfalfa is a perennial crop that provides a higher yield of proteins per unit area than any field crop, which makes it highly desirable for the production of hay and feed for domestic animals (especially ruminants). The objective of this study was to determine the dry matter chemical composition in the whole plant, leaves and stems of five divergent alfalfa cultivars. Variations were found in the contents of proteins, hemicellulose, NDF, ADF, ADL, cellulose, and minerals depending on genotype and plant part. Significant differences existed between the cultivars in quality parameters, indicating that breeding for high alfalfa quality is justifiable.

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