Evaluation of a Crop Processor in a Pull-Type Forage Harvester

Roberge, M.; Savoie, P.; Norris, Earl R.

doi:10.13031/2013.17254

Cited by 27 publications

(21 citation statements)

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“…Internode 5 consistently had the lowest strength and stiffness, whereas internode 7 had the highest. The importance of the compositional and physical nature of corn stalks have been noted in silage and forage research (Johnson et al, 1999; Roberge et al, 1998) and the strength difference in internode segments may be relevant to the production of cellulosic‐based fuels and products.…”

Section: Resultsmentioning

confidence: 99%

No Evidence ThatBacillus thuringiensisGenes and Their Products Influence the Susceptibility of Corn Residue to Decomposition

2008

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A gronomy J our n al • Volume 10 0 , I s sue 6 • 2 0 0 8 ABSTRACT Th e possibility that Bacillus thuringiensis (Bt) corn (Zea mays L.) residues resist decomposition compared to non-Bt residues would present direct (soil carbon turnover times) and indirect (changes in tillage practices) eff ects on carbon budgets in agricultural systems. We evaluated the relative decomposition of residue from two pairs of Bt and non-Bt corn hybrids from diff erent seed manufacturers buried in the root zone of adjacent Bt and non-Bt corn plots over a period of 384 d. We found no persistent diff erences in residue decomposition among the diff erent hybrids regardless of the seed manufacturer or the presence of the Bt genes (both cry1Ab and cry3Bb1 genes present in each Bt hybrid) in the residue. No signifi cant diff erences in residue compositional properties or fl exural strength of intact stalk sections were observed among the four hybrids. Both Bt and non-Bt residues buried in the root zone of a Bt corn hybrid decomposed faster than those buried in the root zone of the corresponding, nearisogenic non-Bt hybrid. A subsequent replicated laboratory study showed no diff erence between the decomposition of cellulose fi lter paper buried in the root zone of growing and senescing Bt and non-Bt hybrids. We conclude that (i) the presence of Bt genes and their products in chopped residue does not aff ect its decomposability; (ii) the presence of Bt genes does not aff ect the mechanical strength of the stalks; and, (iii) Bt products released from growing or senescing Bt corn plants do not adversely aff ect decomposition activities in the surrounding soil.

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Section: Resultsmentioning

confidence: 99%

No Evidence ThatBacillus thuringiensisGenes and Their Products Influence the Susceptibility of Corn Residue to Decomposition

2008

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“…Indeed, maceration has been shown not only to increase the field drying rate (Savoie et al 1993), but also to improve the ensiling process of forages (Hintz et al 1999). Other than those in which corn silage was used, few studies have been conducted that examine the effects of maceration of forage on ruminal degradability and animal performance.…”

Section: Mots Clés: Fourrage Ensilage Macération Dégradabilité Rummentioning

confidence: 99%

“…The difference in DM content between the two forages before ensiling (37 and 23% for MS and US, respectively) was maintained following fermentation (30.7 and 23.7 ± 4.4%). Maceration increases drying rates (Savoie et al 1993). On a dry matter basis, MS had less acid detergent fibre than the US (35.2 and 38.1 ± 1.4%), similar N (2.50 and 2.47 ± 0.04%), NDF (54.6 and 55.2 ± 5.4%), and ash (10.1 and 10.2 ± 0.5%).…”

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confidence: 93%

“…Broderick et al (1999) reported a greater milk yield in two of four experiments when 61% of the dietary dry matter (DM) was provided by macerated vs. longchopped alfalfa silage. In contrast, there was no beneficial effect on milk production when cows were fed a diet containing 41% of the dietary DM provided by macerated ryegrass silage (Broderick et al 2002).The objectives of this study were to determine the effects of the maceration of a mixed sward of bromegrass-alfalfa on rumen degradability of silage, total tract apparent digestibility, and lactational performances of dairy cows.Two fields containing 60% bromegrass and 40% alfalfa were harvested on 3 consecutive days with (1) a prototype pull-type forage harvester (model 1218, Dion Machineries, Quebec) modified to include two corrugated rolls (Roberge et al 1998) to produce macerated silage (MS) or (2) a conventional forage harvester (New Holland, model 900) to produce unmacerated silage (US). Both harvesters were operated simultaneously and equally distributed between the two fields.…”

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confidence: 99%

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Effect of maceration of bromegrass-alfalfa silage on ruminal degradability and performance of lactating dairy cows

Ouellet¹,

Lapierre²,

Chiquette³

2006

Can. J. Anim. Sci.

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. 2006. Effect of maceration of bromegrass-alfalfa silage on ruminal degradability and performance of lactating dairy cows. Can. J. Anim. Sci. 86: 311-315. Maceration of bromegrass-alfalfa sward increased effective ruminal degradability of dry matter, neutral detergent fibre, and gross energy, but decreased the degradability of protein.Despite improvement in ruminal degradation kinetics, inclusion of the macerated silage (43% of total mixed ration dry matter) between weeks 7 and 15 of lactation had limited effect on lactational performance.Key words: Forage, silage, maceration, rumen degradability, lactation Ouellet, D. R., Lapierre, H. et Chiquette J. 2006. Effet de la macération d'un mélange d'ensilage brome-luzerne sur la dégrad-abilité ruminale et les performances des vaches laitières. Can. J. Anim. Sci. 86: 311-315. La macération d'un mélange bromeluzerne a augmenté la dégradabilité ruminale effective de la matière sèche, de la fibre détergente neutre et de l'énergie brute mais diminué la dégradabilité de la protéine. Malgré une amélioration de la cinétique de la dégradation ruminale, l'inclusion de l'ensilage macéré (43% de la matière sèche de la ration totale mélangée) entre les semaines 7 et 15 de lactation a eu un effet limité sur les performances des vaches laitières. Mots clés: Fourrage, ensilage, macération, dégradabilité ruminale, lactationOver the past decades, intensive mechanical conditioning, referred to as maceration, has been developed to improve forage conservation. Indeed, maceration has been shown not only to increase the field drying rate (Savoie et al. 1993), but also to improve the ensiling process of forages (Hintz et al. 1999). Other than those in which corn silage was used, few studies have been conducted that examine the effects of maceration of forage on ruminal degradability and animal performance. Broderick et al. (1999) reported a greater milk yield in two of four experiments when 61% of the dietary dry matter (DM) was provided by macerated vs. longchopped alfalfa silage. In contrast, there was no beneficial effect on milk production when cows were fed a diet containing 41% of the dietary DM provided by macerated ryegrass silage (Broderick et al. 2002).The objectives of this study were to determine the effects of the maceration of a mixed sward of bromegrass-alfalfa on rumen degradability of silage, total tract apparent digestibility, and lactational performances of dairy cows.Two fields containing 60% bromegrass and 40% alfalfa were harvested on 3 consecutive days with (1) a prototype pull-type forage harvester (model 1218, Dion Machineries, Quebec) modified to include two corrugated rolls (Roberge et al. 1998) to produce macerated silage (MS) or (2) a conventional forage harvester (New Holland, model 900) to produce unmacerated silage (US). Both harvesters were operated simultaneously and equally distributed between the two fields. Particle size distribution, evaluated using standard method S424.1 (American Society of Agricultural Engineers 1999), indicated a geometric mean len...

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“…It is not clear the lack of impact for the short TLOC (6-mm) in the current trial. At equal TLOC settings, a reduction in particle size by about 15 to 30% due to kernel processor has been observed (Schurig and Rodel, 1993;Roberge et al, 1998). The processing rolls crush and shear the stover fraction and, as a consequence, eliminates intact cobs and long particles especially under tight roll gap setting .…”

Section: Discussionmentioning

confidence: 99%

Strategies to improve kernel processing and dairy cow performance in whole-plant corn silage based on vitreous endosperm hybrid

Salvati¹,

Nussio²

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Evaluation of a Crop Processor in a Pull-Type Forage Harvester

Cited by 27 publications

References 0 publications

No Evidence ThatBacillus thuringiensisGenes and Their Products Influence the Susceptibility of Corn Residue to Decomposition

No Evidence ThatBacillus thuringiensisGenes and Their Products Influence the Susceptibility of Corn Residue to Decomposition

Effect of maceration of bromegrass-alfalfa silage on ruminal degradability and performance of lactating dairy cows

Strategies to improve kernel processing and dairy cow performance in whole-plant corn silage based on vitreous endosperm hybrid

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