The effect of additives on quality, protein
degradability, intestinal digestibility and feed intake
of wilted grass silages

Nowak, W.; Potkański, A.; Wylegała, S.

doi:10.22358/jafs/67392/2004

Cited by 6 publications

(12 citation statements)

References 10 publications

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“…However, ED would have been significantly lower in HAY than in silages with the assumption of a similar passage rate in HAY and in silages as was the case in von Keyserlingk and Mathison (1989), Petit and Tremblay (1992), Cushnahan and Gordon (1995) and Aufrère et al (2000Aufrère et al ( , 2003. Between silages, the extent of fermentation had no significant effect on in situ DM degradation, which is in agreement with the studies of Keady and Steen (1994), Cushnahan et al (1995), Gasior and Brzóska (1999) and Nowak et al (2004), but in contrast with the significant increase (+ 10%) in soluble DM for restrictively vs. extensively fermented ryegrass silages reported by Keady et al (1994). Such an increase in DM fraction a of the restrictively fermented silage is difficult to explain given that DM was determined with ethanol-cor- rected toluene, which includes volatile substances.…”

Section: Effects Of Conservation Methods On In Situ Degradation Of Dmsupporting

confidence: 85%

In situ degradation of timothy conserved as restrictively or extensively fermented silage or as hay

Martineau¹,

Lapierre²,

Ouellet³

et al. 2006

Can. J. Anim. Sci.

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R. 2006. In situ degradation of timothy conserved as restrictively or extensively fermented silage or as hay. Can. J. Anim. Sci. 86: 299-306. The objective of this study was to determine the effects of three modes of preserving timothy (Phleum pratense L.) on in situ degradation of dry matter (DM), organic matter, crude protein (CP), neutral detergent fiber and acid detergent fiber. First-cut timothy was conserved as hay, as restrictively fermented silage (formic acid 85% applied at 6 L t -1 of fresh crop), or as extensively fermented silage (inoculation with a mixture of Lactobacillus plantarum and Pediococcus cerevisiae yielding 1.25 × 10 11 total CFU t -1 ). Six mid-lactating Holstein cows, previously adapted to the tested forage, were used to study the in situ degradation of each forage type (two cows per forage type). Triplicate bags were filled with 3.5 g DM equivalent of chopped wet forage and incubated in the rumen during 2, 4, 8, 12, 24, 48, or 72 h. Zero-hour bags were not inserted in the rumen. The conservation method affected in situ degradation of CP. Haying decreased (P ≤ 0.03) soluble protein (fraction a), degradation rate (c), lag time and effective degradability of CP in the rumen, and increased (P < 0.01) potentially degradable protein (fraction b) when compared with ensiling. Restricting fermentation in silage decreased (P < 0.01) fraction a and increased (P = 0.01) CP fraction b when compared with extensively fermented silage. Results indicate that conserving timothy as hay significantly decreases solubility, rate and extent of protein degradation in the rumen when compared with ensiling. Results also show that solubilization of protein in silage can be reduced by restricting fermentation with formic acid as compared with promoting fermentation with a bacterial inoculant, without a concurrent decrease in the extent of protein degradation in the rumen. Key words:In situ degradation, timothy, hay, restrictively fermented silage, extensively fermented silage, formic acid, inoculation Martineau, R., Lapierre, H., Ouellet, D. R., Pellerin, D. et Berthiaume, R. 2006. Dégradation in situ de la fléole des prés conservée en foin ou en ensilage avec fermentation restreinte ou stimulée. Can. J. Anim. Sci. 86: 299-306. L'étude avait pour but de préciser l'incidence du mode de conservation de la fléole des prés (Phleum pratense L.) sur les paramètres de la dégradation in situ de la matière sèche, de la matière organique, de la protéine brute et des fibres détergentes neutre et acide. Un champ de fléole des prés a été récolté à la première coupe et conservé en foin ou en ensilage avec fermentation restreinte (application d'acide formique 85% au taux de 6 L t -1 d'herbe fraîche) ou stimulée (inoculation avec un mélange de Lactobacillus plantarum et de Pediococcus cerevisiae produisant un total de 1.25 × 10 11 UFC t -1 ). Six vaches Holstein en milieu de lactation et préalablement adaptées aux fourrages évalués ont été utilisées pour étudier la dégradation in situ de chacun des types de fourrage (2 vaches...

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Section: Effects Of Conservation Methods On In Situ Degradation Of Dmsupporting

confidence: 85%

In situ degradation of timothy conserved as restrictively or extensively fermented silage or as hay

Martineau¹,

Lapierre²,

Ouellet³

et al. 2006

Can. J. Anim. Sci.

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“…Interestingly, this study showed that the degradation rate of degradable B fraction of CP and DM was faster in ISMSP than in SMSP (Table 5), and these results are similar to those reported by Nowak et al (2004). Keady and Steen (1994) found that inoculation of silage improves in vivo total digestibility.…”

Section: Mucksupporting

confidence: 88%

Rumen fermentation and digestibility of spent mushroom (Pleurotus ostreatus) substrate inoculated with Lactobacillus brevis for Hanwoo steers

Baek

Kim

Reddy

et al. 2017

Rev Colomb Cienc Pecu

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Original articles 267Rumen fermentation and digestibility of spent mushroom (Pleurotus ostreatus) substrate inoculated with Lactobacillus brevis for Hanwoo steers ¤ Fermentación ruminal y digestibilidad de la cama de champiñón (Pleurotus ostreatus) desechada inoculada con Lactobacillus brevis en novillos Hanwoo Fermentação ruminal e digestibilidade de resíduo de substrato de cogumelo (Pleurotus ostreatus) inoculado com Lactobacillus brevis en novilhos Hanwoo AbstractBackground: Ensiling spent mushroom substrate (SMS) generally increases its nutrient digestibility and quality. Objective: To determine the feed quality and digestibility of SMS from Pleurotus ostreatus (SMSP) inoculated with lactic acid bacteria (LAB: Lactobacillus brevis) in Hanwoo steers. Methods: Ruminal disappearance of SMSP and inoculated SMSP (ISMSP) were evaluated in three rumen-fistulated Hanwoo steers (408 ± 13.0 Kg body weight). Further, three healthy Hanwoo steers (336 ± 69.0 Kg body weight) were randomly allotted to one of three dietary treatments (control: 25% straw, 75% concentrates; treatments: 25% straw, 60% concentrates, and 15% of either SMSP or ISMSP) in a 3×3 Latin square design. Results: The 268Rev Colomb Cienc Pecu 2017; 30:267-277 Baek YC et al. Inoculation of spent mushroom with Lactobacillus in steerschemical composition of the ISMSP diet did not differ from that of the control or the SMSP diets. In the ISMSP diet, the rate of decrease of pH of ruminal fluid and the increase in storage period was greater than with the SMSP diet. Ruminal disappearance of dry matter, crude protein, neutral detergent fiber, and acid detergent fiber were slightly higher in steers fed ISMSP than those fed SMSP. Furthermore, the degradation rate and effective degradability of crude protein was greater in the ISMSP diet than in the SMSP diet. Effective ruminal fermentation characteristics and total nutrients digestibility were not affected by SMSP nor ISMSP diet. Conclusion: The SMSP and ISMSP diets could replace formulated concentrate without adverse effects and be a cost-effective feed for Hanwoo steers. Furthermore, LAB inoculation improved the SMSP preservation.Keywords: agricultural by-products ensilage, feed cost, nylon bag technique, total-tract digestibility, volatile fatty acid. ResumenAntecedentes: El ensilado de cama de champiñón desechada (SMS) generalmente aumenta la digestibilidad y la calidad de sus nutrientes. Objetivo: Determinar la calidad del alimento y digestibilidad del SMS a partir de Pleurotus ostreatus (SMSP) inoculado con bacterias ácido-lácticas (LAB: Lactobacillus brevis) en bueyes Hanwoo. Métodos: La desaparición ruminal del SMSP y ISMSP (SMSP inoculado) fue evaluada en tres bueyes Hanwoo fistulados en el rumen (408 ± 13,0 Kg peso corporal). Igualmente, tres bueyes Hanwoo sanos (336 ± 69,0 Kg peso corporal) fueron asignados al azar a uno de los tres tratamientos dietéticos (control: 25% de heno, 75% de concentrados; tratamientos: 25% de heno, 60% de concentrados y 15% de SMSPo ISMSP) en un diseño cuadrado latino 3×3. Re...

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“…Throughout the present study, total tract protein disappearance was not significantly affected by the silage additives (P>0.05). This result is in agreement with Nowak et al [12] who reported that total tract protein digestibility is not affected by inoculation and inclusion of formic acid to grass silage. There were no significant differences in corn and whole barley silages supplemented with the additives for DM disappearance, but treated alfalfa silages had higher dry matter disappearance than AS 0.0 .…”

Section: Ruminal and Post-ruminally Digestibilitysupporting

confidence: 93%

“…Post-ruminal disappearance of ruminal-undegraded protein increased significantly in ASF 4.4 and decreased in urea-treated corn and whole barley silages (P<0.05). These results confirmed the findings of Nowak et al [12] who reported high intestinal protein digestibility when silages are treated with formic acid. The lowest postruminal digestibility of ruminal-undegraded protein in silage prepared with urea may have resulted from the greater protein degradability in rumen [46].…”

Section: Ruminal and Post-ruminally Digestibilitysupporting

confidence: 92%

“…Formic acid, as an inhibitor of fermentation and for its antibacterial effect cause a reduction in protein degradation and deamination in legume such as alfalfa [11]. Alfalfa silage treated with formic acid reduced soluble protein fraction and increased potentially degradable fraction when compared to untreated silage [12]. These authors noted that alfalfa treated with formic acid could provide more rumen undegradable protein than untreated silages in the diets of cows with slow ruminal turnover.…”

Section: Introductionmentioning

confidence: 98%

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Effect of Additives on In Vitro Intestinal Utilizable Crude Protein in Dairy Cows and Mobile Bag Nutrient Digestibility of Corn, Alfalfa and Whole Barley Silages

Hosseini¹,

Mesgaran²,

Vakili³

et al. 2017

J Vet Sci Technol

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An experiment was conducted to investigate the effect of additives on intestinal utilizable crude protein in dairy cows, and ruminal and post-ruminal nutrients disappearance of corn, alfalfa, and whole barley silages using in situ mobile bag technique. Alfalfa, whole crop corn and barley were harvested and chopped, and then treated with commercial biological and chemical additives; urea at 0.0, 10.8 and 21.6 g/kg DM in corn (CS 0.0 , CSU 10.8 and CSU 21.6 , respectively) and whole barley (BS 0.0 , BSU 10.8 and BSU 21.6 , respectively); Biomin ® inoculant at 0.0, 800 and 9600 cfu/kg in corn (CS 0.0 , CSB 800 and CSB 9600 , respectively) and at 0.0 and 800 cfu/kg in whole barley (BS 0.0 and BSB 800 ); formic acid at 0.0, 4 and 4.4 ml/kg in alfalfa (AS 0.0 , ASF 4 and ASF 4.4 , respectively) and at 0.0 and 4 ml/kg (BS 0.0 and BSF 4 ) in whole barley. Urea caused the enhancement of in vitro intestinal utilizable crude protein (uCP) and its effectiveness (EuCP). In vitro intestinal utilizable crude protein was not affected by formic acid in whole barley silage, although treated alfalfa silages had higher uCP than AS 0.0 . Ruminal CP disappearance was higher for urea-treated corn and whole barley silages at both levels, although formic acid and Biomin ® did not change it. Ruminal NDF disappearance was greater for urea-treated corn silages and BSU 21.6 than CS 0.0 and BS 0.0 . Post-ruminal disappearance of protein increased significantly in AS 4.4 and reduced in urea-treated corn and whole barley silages (P<0.05). Utilizable CP at 8 h was higher for dry hays in comparison with those of silages in both alfalfa and whole barley (P<0.05). Results of the present study showed that, for the first time, silages treated with urea and formic acid had higher in vitro utilizable crude protein in dairy cow intestine compared with the untreated silages.

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The effect of additives on quality, protein degradability, intestinal digestibility and feed intake of wilted grass silages

Cited by 6 publications

References 10 publications

In situ degradation of timothy conserved as restrictively or extensively fermented silage or as hay

In situ degradation of timothy conserved as restrictively or extensively fermented silage or as hay

Rumen fermentation and digestibility of spent mushroom (Pleurotus ostreatus) substrate inoculated with Lactobacillus brevis for Hanwoo steers

Effect of Additives on In Vitro Intestinal Utilizable Crude Protein in Dairy Cows and Mobile Bag Nutrient Digestibility of Corn, Alfalfa and Whole Barley Silages

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