The effect of biological additives on the composition and nutritive value of silage

Author(s):  
M Gonzalez Yanez ◽  
R Mcginn ◽  
D H Anderson ◽  
A R Henderson ◽  
P Phillips

It Is claimed that the use of the correct enzyme system as an additive on grass silage will satisfactorily control the fermentation and reduce the cell-wall fibre content, thus preserving the nutrients In the silage and aiding their utilisation by the animal (Henderson and McDonald, 1977; Huhtanen et al, 1985; Raurama et al, 1987; Chamberlain and Robertson, 1989; Gordon, 1989;).The aim of the present experiment was to assess the effect of biological additives, enzymes or a combination of enzymes with an Inoculum of lactic acid bacteria, on the composition of silage and on its nutritive value when offered to store lambs as the sole constituent of their diet.On 1st June 1988, first cut perennial ryegrass (Lolium perenne L) at pre-ear emergence was ensiled direct cut untreated (U), treated with a commercial enzyme (E) or with a commercial inoculum of lactic acid bacteria with enzymes (I) in 6t capacity bunker silos. The grass was cut with a mower and lifted with a New Holland precision chop forage harvester. The additives were pumped onto the grass using a dribble bar sited over the pick-up drum.

Author(s):  
C A Morgan ◽  
A R Henderson ◽  
D H Anderson ◽  
J FitzSimons ◽  
T H McClelland

Intakes of well-fermented silages by store lambs can be disappointing, with liveweight gains well below the 100 to 125 g/d required to fatten lambs over the winter. To achieve high levels of gain it has been necessary to supplement grass silages. Barley, as an energy supplement, has increased the intake of dry matter but often the intake of silage dry matter is decreased. Protein supplements, on the other hand, have been shown to increase silage DM intake. The objectives of this study were to compare the effects on intake and performance of store lambs of two supplements of differing protein content when offered as the sole constituent of the diet or with one of two silages at two levels of supplementation.After a 24 hour wilt, perennial ryegrass (Lolium perenne) was ensiled: half of the material was untreated and half was treated with an additive which contained lactic acid bacteria (supplying 106 cfu/g), Lactobacillus plantarum and Pediococcus pentosaceus and enzymes derived from Trichoderma reesei.


1998 ◽  
Vol 38 (2) ◽  
pp. 145 ◽  
Author(s):  
K. F. Smith ◽  
G. A. Kearney ◽  
R. A. Culvenor

Summary. Seasonal variation in herbage yield, and in the concentrations of water-soluble carbohydrates, crude protein, in vitro dry matter digestibility, neutral detergent fibre, acid detergent fibre and lignin in the herbage was measured for 5 perennial ryegrass (Lolium perenne L.) cultivars grown in 3 contrasting environments. Two separate trials were sown in one of the environments. The yield and nutritive value data were subjected to antedependence analyses to detect the presence of serial correlations between data from different harvest dates. Significant (P<0.05) antedependence was found in 2, 3, 3 and 6 of the 7 variables in the 4 experiments respectively. It was shown that serial correlations between harvest dates had the potential to cause the overestimation of the significance of cultivar effects in ANOVA of data from individual harvest dates, and in harvest and cultivar × harvest effects in combined ANOVA across all harvest dates unless statistical procedures appropriate for use with repeated measurements data were adopted.


2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Anderson de Moura Zanine ◽  
Emerson Alencar Bonelli ◽  
Alexandre Lima de Souza ◽  
Daniele de Jesus Ferreira ◽  
Edson Mauro Santos ◽  
...  

This study aimed to evaluate the effects ofStreptococcus bovison the fermentation characteristics and nutritive value of Tanzania grass silage. Tanzania grass was chopped and left untreated (U) or treated withStreptococcus bovisJB1 at 1 × 106colony-forming units per gram (cfu/g) of fresh forage orStreptococcus bovisHC5 at 1 × 106 cfu/g of fresh forage and packed into sixtuplicate laboratory silos. The largest number of enterobacteria, molds and yeast (M&Y) occurred in untreated silages and the smallest populations of enterobacteria and M&Y and the largest numbers of lactic acid bacteria (LAB), at 9.81 and 9.87 log cfu/g, were observed inStreptococcus bovisJB1 and HC5, respectively (P<0.05). Silages treated with JB1 and HC5 had lower (P<0.05) silage pHs and concentrations of ammoniacal nitrogen (NH3-N) than untreated silages. The application ofStreptococcus bovisJB1 and HC5 resulted in fewer losses through gases and effluents (P<0.05), which resulted in greater dry matter recovery (DMR) and crude protein recovery (CPR) (P<0.05).Streptococcus bovisJB1 and HC5 improved the fermentative profile and increased the concentration of crude protein and DMR and CPR in Tanzania grass silage.


2011 ◽  
Vol 60 (1) ◽  
pp. 219-232 ◽  
Author(s):  
Anita Jakab ◽  
János Kátai ◽  
Magdolna Tállai ◽  
Andrea Balláné Kovács

A tenyészedényes kísérletünket a DE AGTC MÉK Agrokémiai és Talajtani Intézet tenyészházában állítottuk be 2010. május 27-én. A kísérletben Debrecen-Látókép környékéről származó mészlepedékes csernozjom vályogtalajt alkalmaztunk, amely az alábbi jellemzőkkel rendelkezett: KA: 37,5; leiszapolható rész: 51%; pH(KCl): 5,5; pH(H2O): 6,6; Hu%: 2,8; AL-P2O5: 140 mg·kg-1; AL-K2O: 316,3 mg·kg-1. Az adatok alapján a kísérleti talaj gyengén savanyú, vályog kötöttségű, közepes nitrogén- és foszfor-, valamint jó kálium-ellátottsággal rendelkezett. A kísérletben kontroll-, műtrágya-, valamint szalmakezelést alkalmaztunk, melyeket bizonyos kombinációkban három különböző baktériumkészítménnyel (Bactofil A, EM-1, Microbion UNC) egészítettünk ki. A kísérletet három ismétlésben véletlenblokk elrendezésben állítottuk be. A tesztnövény angolperje (Lolium perenneL.) volt. A kísérlet kezdetétől számított 8. héten a talaj-, valamint a növényminták begyűjtésére került sor. Meghatároztuk a növényminták száraztömegét, a növény foszfor- és káliumtartalmát, valamint a talajminták nitrát-, valamint AL-oldható foszfor- és káliumtartalmát. Eredményeink alapján főbb megállapításaink a következők: – Az angolperje száraztömegét a műtrágyakezelés szignifikánsan növelte. A hatás a tápelem-ellátottság javulásával magyarázható. – A növény foszforkoncentrációja a műtrágyázás következtében csökkent, amelyet a hígulási effektussal magyarázhatunk. – A növény káliumkoncentrációját a műtrágya-, valamint a műtrágya+baktériumtrágya kezelések szignifikánsan serkentették. – A talaj nitráttartalma szignifikánsan növekedett a műtrágyakezelés kivételével minden kezelésben. – A talaj AL-P2O5-tartalma az NPK-műtrágyázás és az EM-1 kezelés következtében statisztikailag igazolható mértékben megnövekedett, míg az AL-K2O-tartalom kizárólag a szalmakezelés hatására nőtt. A baktériumkészítmények önmagukban alkalmazva általában nem eredményeztek jelentős változást a vizsgált paraméterekben, azonban a készítmények szerves/ásványi anyagokkal kombinált adagolása esetében különböző mértékben befolyásolták a vizsgált mutatókat.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chatchai Kaewpila ◽  
Pongsatorn Gunun ◽  
Piyawit Kesorn ◽  
Sayan Subepang ◽  
Suwit Thip-uten ◽  
...  

AbstractImproving the nutrition of livestock is an important aspect of global food production sustainability. This study verified whether lactic acid bacteria (LAB) inoculant could promote ensiling characteristics, nutritive value, and in vitro enteric methane (CH4) mitigation of forage sorghum (FS) mixture silage in attacking malnutrition in Zebu beef cattle. The FS at the soft dough stage, Cavalcade hay (CH), and cassava chip (CC) were obtained. The treatments were designed as a 4 × 2 factorial arrangement in a completely randomized design. Factor A was FS prepared without or with CH, CC, and CH + CC. Factor B was untreated or treated with Lactobacillus casei TH14. The results showed that all FS mixture silages preserved well with lower pH values below 4.0 and higher lactic acid contents above 56.4 g/kg dry matter (DM). Adding LAB boosted the lactic acid content of silages. After 24 h and 48 h of in vitro rumen incubation, the CC-treated silage increased in vitro DM digestibility (IVDMD) with increased total gas production and CH4 production. The LAB-treated silage increased IVDMD but decreased CH4 production. Thus, the addition of L. casei TH14 inoculant could improve lactic acid fermentation, in vitro digestibility, and CH4 mitigation in the FS mixture silages.


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