scholarly journals The effect of bacterial inoculant on chemical composition and fermentation of alfalfa silage

2016 ◽  
Vol 32 (4) ◽  
pp. 413-423 ◽  
Author(s):  
Snezana Djordjevic ◽  
Violeta Mandic ◽  
Dragana Stanojevic
Keyword(s):  
Chemical Composition ◽  
Total Nitrogen ◽  
Production Systems ◽  
Dairy Farm ◽  
Meat Production ◽  
Soluble Nitrogen ◽  
Ruminant Diets ◽  
Acid Detergent Fibre ◽  
Alfalfa Silage ◽  
Silage Quality

Alfalfa silage is a useful source of protein for feeding ruminants. Therefore, managing alfalfa silage in livestock production systems is an important issue in order to maintain the silage quality and achieve maximum profitable production of milk and meat. The aim of this investigation was to estimate the effects of bacterial inoculant Silko, containing Lactobacillus plantarum (strains: LP1, LP2, LP3 and LP4) on chemical composition, energetic characteristics and fermentation alfalfa silage under field conditions in the commercial dairy farm, during the 2016. The first-cut alfalfa in the second year has been conserved in silage form. The silage mass was subdivided into two equal parts (control (silage without inoculant) and silages treated with bacterial inoculant Silko) and ensiled in trench silo. After 60 days of ensiling, the silages were analysed. Dry matter, ash, crude protein, lactic acid, acetic acid, total digestible nutrients value and relative feed value were significantly higher in silage treated with bacterial inoculant Silko compared to control. Contrary, alfalfa silage treated with a bacterial inoculant Silko had lower values of cellulose, acid detergent fibre, neutral detergent fibre, nonnitro extractive matter, pH, butyric acid, soluble nitrogen/total nitrogen and NH3- N/total nitrogen than untreated silage. Results showed that bacterial inoculant Silko increases silage quality compared to control so that research should be directed toward the use of such prepared silage in ruminant diets and its impact on milk and meat production on farms.

scholarly journals Impact of non-protein nitrogen substances on grape pomace silage quality

2015 ◽  
Vol 31 (3) ◽  
pp. 433-440
Author(s):  
B. Dinic ◽  
N. Djordjevic ◽  
J. Markovic ◽  
D. Sokolovic ◽  
M. Blagojevic ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Chemical Composition ◽  
Total Nitrogen ◽  
Nutritional Value ◽  
Fermentation Process ◽  
Ammonia Nitrogen ◽  
Grape Pomace ◽  
Soluble Nitrogen ◽  
Protein Nitrogen ◽  
Silage Quality

In this study grape pomace was ensilaged without and with the addition of NPN substances (Benural) at the dose of 0.5, 1.0 and 1.5% of the amount of husk and with the addition of inoculant based on homo and hetero fermentative lactic acid bacteria. The greatest effect on the nutritional value had application of Benural, especially in increasing the CP content from 126.9 to 178.3 g kg-1DM, an increase of over 40%. Application of Benural increased the ammonia and soluble nitrogen several times, but even with the maximum addition of Benural percentage of ammonia nitrogen in the total nitrogen reached only slightly above 5% NH3-N/? N (5.38%), while the percentage of soluble nitrogen in total nitrogen was 28.29%. The application of inoculants generally had no significant impact, both on the chemical composition and the fermentation process.

scholarly journals Effects of lactobacillus plantarum inoculants on maize silage quality

2017 ◽  
Vol 33 (1) ◽  
pp. 115-125 ◽  
Author(s):  
Snezana Djordjevic ◽  
Violeta Mandic ◽  
Dragana Stanojevic ◽  
Jovanovic Ljeskovic
Keyword(s):  
Acetic Acid ◽  
Chemical Composition ◽  
Lactobacillus Plantarum ◽  
Dairy Farm ◽  
Field Trials ◽  
Positive Control ◽  
Negative Control ◽  
Maize Silage ◽  
Bacterial Inoculants ◽  
Silage Quality

In the winter time in Serbia, maize silage is the main ruminant feed. Therefore, managing maize silage is an important contributor to maintain the silage quality for livestock feed. In the study were evaluated the chemical composition, energetic and fermentation characteristics in whole-crop maize silage inoculated with different bacterial inoculants under field conditions in the commercial dairy farm, during the 2015. Three treatments were tested: negative control (untreated silage), a positive control (competitor inoculant) and Silko treatment (contains a mixture of 4 strains of Lactobacillus plantarum (LP1, LP2, LP3 and LP4). Maize is ensiled in the milk-wax grain maturity. After 90 days of ensiling, the maize silages were analyzed. The application of bacterial inoculants improved the chemical composition and energetic characteristics of silage. The inoculant Silko was more effective at improving the fermentation characteristics than competitor inoculant. Ash, cellulose, soluble N/TN, NH3-N/TN, ADF, NDF, acetic acid and pH were significantly lower in Silko treatment than positive control. There were no differences in crude fat, crude protein, ME, NEL, lactic acid and butyric acid between the treated silages. Generally, the new product bacterial inoculant Silko proved in field trials its ability to support the ensiling process in maize. The main action of the bacterial inoculant Silko is performed in two ways: the reduced degradation of protein in silage and the improvement of the aerobic stability due to the lower pH, higher content of acetic acid than negative control.

scholarly journals INFLUENCE OF TYPE OF SILAGE BAG ON CHEMICAL COMPOSITION OF ALFALFA SILAGE

1988 ◽  
Vol 68 (3) ◽  
pp. 831-837 ◽  
Author(s):  
P. H. ROBINSON ◽  
J. J. KENNELLY ◽  
G. W. MATHISON
Keyword(s):  
Chemical Composition ◽  
Qualitative Evaluation ◽  
Significant Deterioration ◽  
Fermentation Products ◽  
Minimum Standards ◽  
Low Concentrations ◽  
Minimum Requirements ◽  
Feeding Value ◽  
Alfalfa Silage ◽  
Silage Quality

Second-cut alfalfa in mid-bloom was ensiled in 3.6-m-diameter silage bags to give about 20 t of material per bag. Six bag types were utilized and each was replicated thrice. Bags evaluated were: PolyStor, Silobag, CIL-SB2, CIL-SB3, Visqueen, and AgBag. Ensiled material was assayed for chemical composition, including fermentation products, 2 and 14 mo after ensiling. Silage was also evaluated qualitatively based on smell (ammonia and silage aroma) and appearance (color, spoilage, consistency, and mold) at 8 and 14 mo. At 2 mo, all silages were judged to have met minimum requirements of good silage. However, significant differences in chemical composition suggest potential silage feeding value could be rated:[Formula: see text]Qualitative evaluation after 8 mo suggested silage quality was similar to that determined at 2 mo. However, after 14 mo one bag type contained silage which did not meet minimum requirements for good silage. The unacceptable silage, from PolyStor bags, had high pH as well as low concentrations of lactic acid and total alcohols. Within the five silage types judged to have met minimum standards, there was insufficient difference in chemical composition to suggest differences in potential feeding value. Silage in all bags showed significant deterioration between 8 and 14 mo and it is suggested that to ensure high-quality feed, silage should be fed prior to the summer following bag filling. Key words: Silage bags, silage quality, alfalfa

scholarly journals Influence of the Production System (Intensive vs. Extensive) at Farm Level on Proximate Composition and Volatile Compounds of Portuguese Lamb Meat

Foods ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1450
Author(s):  
Noemí Echegaray ◽  
Rubén Domínguez ◽  
Vasco A. P. Cadavez ◽  
Roberto Bermúdez ◽  
Laura Purriños ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Volatile Compounds ◽  
Production System ◽  
Proximate Composition ◽  
Production Systems ◽  
Animal Husbandry ◽  
Total Content ◽  
Meat Production ◽  
Extensive System ◽  
Lamb Meat

Today’s society demands healthy meat with a special emphasis on integrated animal husbandry combined with the concern for animal welfare. In this sense, the raising of lambs in an extensive system has been one of the most common practices, which results in meats with high nutritional value. However, both the production system and the diet play a fundamental role in the chemical composition of the meat, which has a direct impact on the content of volatile compounds. Thus, the aim of this study was to determine the effect of two production systems (intensive and extensive) on the chemical composition and volatile profile of lamb meat. Twenty-eight lambs of the Bordaleira-de-Entre-Douro-e-Minho (BEDM) sheep breed were raised for meat production under the intensive or extensive system and were fed with concentrate and pasture, respectively. All animals were carried out in the muscle longissimus thoracis et lumborum. Results evidenced that all the composition parameters were affected by the production system. Extensively-reared lambs produced meat with the highest fat and protein contents, while these animals had the lowest percentages of moisture and ash. Similarly, the total content of volatile compounds was affected (p < 0.05) by the production system and were higher in the meat of lambs reared extensively. Furthermore, the content of total acids, alcohols, aldehydes, esters, ethers, furans and sulfur compounds as well as most of the individual compounds were also affected (p < 0.05) by the production system, whereas total hydrocarbons and ketones were not affected (p > 0.05). As a general conclusion, the production system had very high influence not only in proximate composition but also in the volatile compounds.

scholarly journals Research Regarding Crude Chemical Composition and Heavy Metal Content of Some Ecological Forages Utilised in Dairy Cows Nourishment

2001 ◽  
Vol 71 (3) ◽  
pp. 405-415
Author(s):  
Gherasim Nacu ◽  
Nadia Aioanei ◽  
Ioan Mircea Pop ◽  
Daniel Simeanu ◽  
Paul-Corneliu Boisteanu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Chemical Composition ◽  
Dairy Cows ◽  
Crude Protein ◽  
Production Systems ◽  
Statistical Significance ◽  
Conventional Agriculture ◽  
Extractive Substances ◽  
Acid Detergent Fibre ◽  
Conventional Systems

Kowing the importance of utilised food for milk obtaining, in the current paper we determine the chemical composition of a natural meadow and green mass alfalfa cultivated in ecological and conventional systems, utilised for dairy cows feeding. Were analysed the content in: dry matter DM (%), crude ash C.Ash (%), organic substance OS (%), crude protein CP (%), crude cellulose CC (%), non-nitrogenous extractive substances NES (%), neutral detergent fibre NDF (%), acid detergent fibre ADF (%), Ca (%), P (%), heavy metals (Pb, Cd, Zn, Cu - ppm), nitrates, nitrites and pesticides. Analysis were realised in two consecutive production years, for each indicator being made 5 determinations. Samples gathering and analysis were effectuated in according with standards and enshrined working methods. Differences between crude chemical composition of forages obtained in ecological system and the ones obtained by conventional agriculture had statistical significance (from significant � p ≤ 0.05 � to very significant � p ≤ 0.001) for the majority of indicators. Differences between those two production systems were insignificant only for crude fat (both forages), crude cellulose (alfalfa), non-nitrogenous extractive substances (both forages) and for acid detergent fibre (alfalfa). Both forages were safety regarding pollutants (heavy metals, nitrites, nitrates and pesticides), existing however statistically differences between those two production systems, in the favour of ecological

scholarly journals Evolution in Configuration and Productivity of New Zealand Hill Country Sheep and Beef Cattle Systems

Agriculture ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 531
Author(s):  
Januarius Gobilik ◽  
Stephen Todd Morris ◽  
Cory Matthew
Keyword(s):  
New Zealand ◽  
Beef Cattle ◽  
Conversion Efficiency ◽  
Production Systems ◽  
Metabolic Energy ◽  
Meat Production ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Hill Country ◽  
Cattle Systems

Metabolic energy budgeting (MEB) was used to evaluate evolution over 30 years (1980–1981 to 2010–2011) in New Zealand southern North Island ‘hill country’ sheep and beef cattle systems. MEB calculates energy required by animals for body weight maintenance, weight gain or loss, pregnancy, and lactation to estimate the system feed demand and thereby provide a basis for calculating feed conversion efficiency. Historic production systems were reconstructed and modeled using averaged data from industry surveys and data from owners’ diaries of three case-study farms and reviewed for patterns of change over time. The modeling indicated that pasture productivity was 11% lower and herbage harvested was 14% lower in 2010–2011 than in the early 1980s. This productivity decline is attributable to warmer, drier summer weather in recent years. However, primarily through increased lambing percentage, feed conversion efficiency based on industry data improved over the study period from 25 to 19 kg feed consumed per kg lamb weaned, while meat production rose from 137 to 147 kg per ha per year. Similar improvements were observed for the three case farms. The New Zealand MEB model was found effective for analysis of tropical beef production systems in Sabah, Malaysia.

SEASONAL VARIATIONS IN THE CHEMICAL COMPOSITION OF GRASSES HARVESTED FROM THE NATURAL PASTURE IN OGUN STATE SOUTH-WESTERN NIGERIA

2021 ◽  
Vol 20 (1) ◽  
pp. 65-77
Author(s):  
O. A. OKUKENU ◽  
B. T. AKINYEMI ◽  
P. A. DELE ◽  
A. A. OLAJIDE ◽  
A.O. JOLAOSHO ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Rainy Season ◽  
Crude Protein ◽  
P Value ◽  
Ogun State ◽  
Natural Pasture ◽  
Four Seasons ◽  
Acid Detergent Fibre ◽  
Different Seasons ◽  
Dominant Grasses

The research was carried was carried out to evaluate the chemical composition of the dominant grasses harvested from the natural pasture in selected villages in Ogun State, South-western Nigeria at different seasons. The study was carried out using a 4 × 6 factorial arrangement comprising four seasons (early rain, late rain, early dry and late dry) at six locations (Afami, Atokun, Ibooro, Ileniku, Ipaaya, and Okerori). Results showed that the crude protein (CP) content significantly (p<0.05) varied from 5.56 % for Okerori to 7.34 % for Ibooro and the grasses harvested at Afami had the highest (72.75 %) neutral detergent fibre (NDF) values with the least (68.75 %) value recorded for Okerori, while the acid detergent fibre (ADF) values ranged from 41.00 % for Atokun to 48.25 % for Okerori. Also, CP value as affected by the season ranged from 4.23 % for late rainy to 9.44 % for the early rainy season and NDF values from 67.33% for late dry to 72.33 % for late rainy season while the early dry season had the highest value (48.00 %) for ADF with the least value (40.33 %) was recorded for the early rainy season. The phosphorus (P) value was highest at Ipaaya (2.99 g/kg) with the least value observed at Okerori (1.62 g/kg). The value for calcium ranged from 2.55 g/kg at Afami to 6.59 g/kg at Okerori. The P value of grasses as affected by seasons ranged from 1.46 g/kg for early dry to 2.66 g/kg for early rainy seasons.

Sign in / Sign up

Export Citation Format

Share Document