Winter annual small grain forage potential. II. Quantification of nutritive characteristics of four small grain species at six growth stages

Edmisten, Keith L.; Green, James T.; Mueller, J. P.; Burns, J. A.

doi:10.1080/00103629809369993

Cited by 30 publications

(32 citation statements)

References 18 publications

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“…The advancing maturity of WCO increased DM and starch and decreased pro tein contents (Table 1), in line with the results of others (Borowiec et al, 1998;Edmisten et al, 1998). Some losses of DM and starch due to ensiling were shown.…”

Section: Resultssupporting

confidence: 76%

Protein degradability in the rumen and intestinal digestibility of ensiled whole-crop oat cut at different stages of maturity

Kowalski¹,

Borowiec²,

Pisulewski³

et al. 2001

J. Anim. Feed Sci.

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Ruminal protein degradability and intestinal rumen-undegraded protein digestibility (1DRUP) of whole-crop oat cut at: heading (H), milk (M) and milk-dough (M-D) stages of maturity were measu red. The experiment was conducted on three Holstein bulls fitted with ruminal and duodenal cannula using the in situ and mobile nylon bag methods.A significant effect of ensiling on rumen protein degradability parameters was shown. Ensiling increased both protein solubility (fraction A) and effective rumen degradability (ERD), decreased the content of potentially degradable fraction B (PO.001) and IDRUP (64.7 vs 55.3%; PO.001). The content of soluble fraction (A) and ERD increased, and the content of fraction (B) decreased from heading (H) to milk (M) stages. However, from M to M-D stages of growth, the content of fraction A (75.6 vs 70.5) and ERD (80.6 vs 78.2) decreased. Total tract protein digestibility decreased (PO.001) with increasing plant maturity. Moreover, IDRUP of M and M-D forages was lower than that of H forages (62.9, 56.3 and 56.6, respectively for H, M and M-D; PO.001).It can be concluded that in terms of protein availability from the gastrointestinal tract, the milk stage of growth seems to be the optimal harvest time.

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Section: Resultssupporting

confidence: 76%

Protein degradability in the rumen and intestinal digestibility of ensiled whole-crop oat cut at different stages of maturity

Kowalski¹,

Borowiec²,

Pisulewski³

et al. 2001

J. Anim. Feed Sci.

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“…The decreased IVDMD in sorghum and oats silages, but unchanged in maize silage with advancing maturity was supported by Edmisten et al (1998) who reported that IVDMD of small grain cereals (barley, oat, rye, and wheat) silages harvested at six growth stages, decreased from vegetative to the milk stage and then remained similar or declined marginally to the hard dough stage. The decline in IVDMD from growing to http://www.aloki.…”

Section: In-vitro Dry Matter Digestibilitysupporting

confidence: 54%

Impact of Flowering Stage on Nutritive Value, Physical Quality and Digestibility of Silages Made From Cereal Fodders

Rafi-Ud-Din¹

2016

Appl Ecol Env Res

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Abstract. The objective of current study was to investigate the effects of flowering phase (maturity) i.e. early bloom (20% flowering), mid bloom (50% flowering) and full bloom (100% flowering) on chemical and physical characteristics of silages, made from Zea mays L., Sorghum bicolor (L.) Moench and Avena sativa L. cereal fodders grown in subtropical conditions. The three fodders were harvested at three different maturity stages, chopped and ensiled in laboratory silos for 30 days fermentation period. The analysis of variance revealed that the increase in maturity from early to full bloom significantly (P < 0.05) increased dry matter (DM %) in maize (18.82±0.02 to 25.80±0.05), sorghum (20.65±0.01 to 29.47±0.01) and oat (17.68±0.01 to 26.54±0.01) silages, and decreased crude protein in all. The NDF and ADF increased with increase in maturity for sorghum and oats silage, while it decreased for maize silage. Lactic acid increased linearly (P < 0.05) with increasing maturity while pH, ME and in vitro dry matter digestibility (IVDMD) decreased. Stage of maturity also had significant effect on physical characteristics (color, smell and structure) of silage in all fodder crops. The highest flieg score was recorded in full bloom stage of maturity (100% flowering) due to low pH and higher DM recovery in all cereal silages. It was concluded from the current study that quality silages can successfully be made from cereal fodders grown in subtropical conditions.

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“…These differences are associated with more advanced maturity in the summer‐harvested compared to autumn‐harvested oat (Table 1). Cherney and Marten (1982b) and Edmisten et al (1998b) also reported that NDF and ADF concentrations of oat increased as maturity advanced in early summer. The season × cultivar interactions for whole plant NDF and ADF concentrations were significant; NDF and ADF in ForagePlus and Gem were lower in autumn than early summer, while in Jim whole plant NDF and ADF were the same in both seasons (Table 2).…”

Section: Resultsmentioning

confidence: 91%

Forage Production and Nutritive Value of Oat in Autumn and Early Summer

Contreras‐Govea

Albrecht

2006

Crop Science

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Oat (Avena sativa L.) grown for forage in the northern USA usually is sown in spring and harvested in early summer, with rapid decline in quality after boot stage. This study was conducted to determine if there are differences in forage yield and forage quality between summer sown-autumn harvested and spring sown-early summer harvested oat, and to determine whether seasonal effect is similar among oat cultivars that vary in maturity classification. Oat was sown in summer 2001 and spring 2002 at two locations in Wisconsin and harvested in autumn and early summer, respectively. Oat sown in August produced 6.7 Mg ha 21 of forage when harvested 77 d later, about 1.0 Mg ha 21 less than that obtained from spring sown oat harvested 77 d after sowing. Autumn forage yield was similar among oat cultivars due to decreasing daylength and temperature. Maturation of summer-sown oat was delayed, resulting in 10 to 15% less neutral detergent fiber (NDF), 18% greater digestibility, and 250% greater water soluble carbohydrate (WSC) concentration than spring-sown oat. High WSC levels are of particular importance since oat forage harvested in autumn will likely be stored as silage due to poor drying conditions in autumn. Differences in forage quality among cultivars and between spring and autumn oat forage are associated with maturity differences. Oat sown in late summer, and especially the leafy, late maturing cultivar ForagePlus, can supplement high quality forage production in autumn.

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Winter annual small grain forage potential. II. Quantification of nutritive characteristics of four small grain species at six growth stages

Cited by 30 publications

References 18 publications

Protein degradability in the rumen and intestinal digestibility of ensiled whole-crop oat cut at different stages of maturity

Protein degradability in the rumen and intestinal digestibility of ensiled whole-crop oat cut at different stages of maturity

Impact of Flowering Stage on Nutritive Value, Physical Quality and Digestibility of Silages Made From Cereal Fodders

Forage Production and Nutritive Value of Oat in Autumn and Early Summer

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