The Experts below are selected from a list of 297 Experts worldwide ranked by ideXlab platform
B T Campbell - One of the best experts on this subject based on the ideXlab platform.
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production performance nutrient digestibility and milk fatty acid profile of lactating dairy cows fed corn Silage or Sorghum Silage based diets with and without xylanase supplementation
Journal of Dairy Science, 2019Co-Authors: Y Yang, Gonzalo Ferreira, B A Corl, B T CampbellAbstract:ABSTRACT The objective of this study was to evaluate the effects of supplementing xylanase on production performance, nutrient digestibility, and milk fatty acid profile in high-producing dairy cows consuming corn Silage- or Sorghum Silage-based diets. Conventional corn (80,000 seeds/ha) and brown midrib forage Sorghum (250,000 seeds/ha) were planted, harvested [34 and 32% of dry matter (DM), respectively], and ensiled for more than 10 mo. Four primiparous and 20 multiparous Holstein cows were randomly assigned to 1 of 4 diets in a replicated 4 × 4 Latin square design with a 2 × 2 factorial arrangement of treatments and 19-d periods. Treatment diets consisted of (1) corn Silage-based diet without xylanase, (2) corn Silage-based diet with xylanase, (3) Sorghum Silage-based diet without xylanase, and (4) Sorghum Silage-based diet with xylanase. The xylanase product was supplemented at a rate of 1.5 g of product/kg of total DM. Corn Silage had higher concentrations of starch (31.2 vs. 29.2%), slightly higher concentrations of crude protein (7.1 vs. 6.8%) and fat (3.7 vs. 3.2%), and lower concentrations of neutral detergent fiber (36.4 vs. 49.0%) and lignin (2.1 vs. 5.7%) than Sorghum Silage. Xylanase supplementation did not affect DM intake, milk yield, milk fat percentage and yield, milk protein percentage and yield, lactose percentage and yield, and 3.5% fat-corrected milk yield. Cows consuming corn Silage-based diets consumed 13% more DM (28.8 vs. 25.5 kg/d) and produced 5% more milk (51.6 vs. 48.9 kg/d) than cows consuming Sorghum Silage-based diets. Milk from cows consuming Sorghum Silage-based diets had 16% greater fat concentrations (3.84 and 3.30%) than milk from cows consuming corn Silage-based diets. This resulted in 8% greater fat yields (1.81 vs. 1.68 kg/d). Silage type did not affect milk protein and lactose concentrations. Xylanase supplementation did not affect nutrient digestibility. Cows consuming corn Silage-based diets showed greater DM (77.3 vs. 73.5%), crude protein (78.0 vs. 72.4), and starch (99.2 vs. 96.5%) digestibilities than cows consuming Sorghum Silage-based diets. In conclusion, xylanase supplementation did not improve production performance when high-producing dairy cows were fed corn Silage- or Sorghum Silage-based diets. In addition, production performance can be sustained by feeding Sorghum Silage in replacement of corn Silage.
L O Abdelhadi - One of the best experts on this subject based on the ideXlab platform.
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corn Silage versus grain Sorghum Silage as a supplement to growing steers grazing high quality pastures effects on performance and ruminal fermentation
Animal Feed Science and Technology, 2006Co-Authors: L O Abdelhadi, F J SantiniAbstract:Abstract Supplementation with corn Silage (CS) or grain Sorghum Silage (SS) on average daily gain (ADG), rate of subcutaneous fat deposition (RFD) and ruminal fermentation characteristics were evaluated in 42 Angus×Hereford steers (187±26kg) grazing high quality pastures. Steers were assigned to one of three treatments in a randomized design being; TP, fresh pasture (700g/kg grass and 300g/kg legumes) fed ad libitum ; TCS or TSS, with restricted pasture plus CS or SS, both finely chopped and rolled at dough grain stage, representing 400g/kg of the total diet on DM basis, respectively. Two paddocks per treatment and 7 steers per paddock were used. Average daily gain was not affected by treatments (mean=0.939kg/day), but RFD was lower (P versus TP steers. Dry matter intake was similar among treatments (mean=6.99kg/day), being Silage intake 2.8kgDM/(steerday) in supplemental treatments. Ruminal pH was similar among treatments (mean=6.7), but NH 3 N concentration was lower (P versus TP. Total VFA concentrations, molar proportions of acetate (A), propionate (P), n -butyrate and A:P ratio were not affected by supplementation. Silage supplementation resulted in increased stocking rates, from 2.45 in TP to 4.66 (TCS and TSS) steers/ha, and live weight production from 260 for TP to 469 (TCS) and 483 (TSS) kg/ha. Grain Sorghum Silage can replace corn Silage to supplement growing steers without detrimental effects on performance and ruminal fermentation, thus being a good alternative in marginal areas where corn production is agronomically uncertain.
L F Ferraretto - One of the best experts on this subject based on the ideXlab platform.
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short communication influence of Sorghum cultivar ensiling storage length and microbial inoculation on fermentation profile n fractions ruminal in situ starch disappearance and aerobic stability of whole plant Sorghum Silage
Animal Feed Science and Technology, 2020Co-Authors: T Fernandes, E M Paula, Halima Sultana, L F FerrarettoAbstract:Abstract In recent years, the interest to grow Sorghum for Silage has increased, with greater prominence in areas where water supply and or availability is an issue for plant growth. Therefore, the objective of this study was to evaluate the effects of Sorghum cultivars (forage or sudan), storage length and microbial inoculation with heterofermentative and facultative homofermentative inoculants on the fermentation profile, DM loss, aerobic stability and ruminal in situ starch disappearance of whole-plant Sorghum Silage. Whole-plant Sorghum (279 ± 37 g/kg DM for forage and 232 ± 29 g/kg DM for sudan) was ensiled in quintuplicate 20 L plastic buckets untreated (CON) or after the following treatments: Lactobacillus plantarum CH6072, L. plantarum LSI, and Pediococcus pentosaceus P6 at 1 × 105 cfu/g of fresh forage (LPPP); L. buchneri LB1819 and Lactococcus lactis O224 at 1.5 × 105 cfu/g (LBLL). Silos were allowed to ferment for 0, 15, 30 or 90 d. Lactic acid and total acids were greatest in sudan Sorghum Silage, and total acids were greatest in LPPP and lowest for LBLL. Ammonia-N (as g/kg of total N) was greatest with sudan Sorghum. The acetic acid was greatest in forage Sorghum inoculated with LBLL, intermediate in sudan Sorghum inoculated with LBLL, and linearly increased in both cultivars with storage length from 15 to 90 d. Silage aerobic stability was greater for LBLL compared to CON and LPPP. Ruminal in situ starch disappearance was increased with ensiling time, and linearly increased from d 15–90. Microbial inoculation with L. buchneri and Lactococcus lactis increased the acetic acid concentrations, improved aerobic stability, and reduced the DM loss by discarded visible spoilage, at the expense of higher DM loss by gases. This effect was more evident in forage Sorghum compared to sudan Sorghum.
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graduate student literature review current perspectives on whole plant Sorghum Silage production and utilization by lactating dairy cows
Journal of Dairy Science, 2020Co-Authors: C L Mccary, D Vyas, A P Faciola, L F FerrarettoAbstract:ABSTRACT The purpose of this literature review is to evaluate current research into and understanding of whole-plant Sorghum Silage production and the effect of feeding whole-plant Sorghum Silage on lactation performance of dairy cows. Sorghum's drought tolerance, water efficiency, and low cost of production make it an intriguing crop in areas where whole-plant corn Silage production may be limited. Currently, urban land encroachment and reduced water availability have increased social and economic pressures on farms to improve crop production efficiency. As these challenges become more prevalent, greater reliance on Sorghum can be expected because of its ability to produce high dry matter yields while maintaining nutritive value, even under less-than-ideal growing conditions. Moreover, whole-plant Sorghum Silage provides both physically effective fiber and energy through fiber and grain fractions. Advancements in Sorghum genetics and mechanical processing have the potential to alleviate common challenges associated with whole-plant Sorghum Silage supplementation, such as increased neutral detergent fiber and decreased neutral detergent fiber digestibility, starch concentration, and starch digestibility. These nutritive challenges must be overcome for whole-plant Sorghum Silage to be a viable alternative to whole-plant corn Silage.
F J Santini - One of the best experts on this subject based on the ideXlab platform.
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corn Silage versus grain Sorghum Silage as a supplement to growing steers grazing high quality pastures effects on performance and ruminal fermentation
Animal Feed Science and Technology, 2006Co-Authors: L O Abdelhadi, F J SantiniAbstract:Abstract Supplementation with corn Silage (CS) or grain Sorghum Silage (SS) on average daily gain (ADG), rate of subcutaneous fat deposition (RFD) and ruminal fermentation characteristics were evaluated in 42 Angus×Hereford steers (187±26kg) grazing high quality pastures. Steers were assigned to one of three treatments in a randomized design being; TP, fresh pasture (700g/kg grass and 300g/kg legumes) fed ad libitum ; TCS or TSS, with restricted pasture plus CS or SS, both finely chopped and rolled at dough grain stage, representing 400g/kg of the total diet on DM basis, respectively. Two paddocks per treatment and 7 steers per paddock were used. Average daily gain was not affected by treatments (mean=0.939kg/day), but RFD was lower (P versus TP steers. Dry matter intake was similar among treatments (mean=6.99kg/day), being Silage intake 2.8kgDM/(steerday) in supplemental treatments. Ruminal pH was similar among treatments (mean=6.7), but NH 3 N concentration was lower (P versus TP. Total VFA concentrations, molar proportions of acetate (A), propionate (P), n -butyrate and A:P ratio were not affected by supplementation. Silage supplementation resulted in increased stocking rates, from 2.45 in TP to 4.66 (TCS and TSS) steers/ha, and live weight production from 260 for TP to 469 (TCS) and 483 (TSS) kg/ha. Grain Sorghum Silage can replace corn Silage to supplement growing steers without detrimental effects on performance and ruminal fermentation, thus being a good alternative in marginal areas where corn production is agronomically uncertain.
Y Yang - One of the best experts on this subject based on the ideXlab platform.
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production performance nutrient digestibility and milk fatty acid profile of lactating dairy cows fed corn Silage or Sorghum Silage based diets with and without xylanase supplementation
Journal of Dairy Science, 2019Co-Authors: Y Yang, Gonzalo Ferreira, B A Corl, B T CampbellAbstract:ABSTRACT The objective of this study was to evaluate the effects of supplementing xylanase on production performance, nutrient digestibility, and milk fatty acid profile in high-producing dairy cows consuming corn Silage- or Sorghum Silage-based diets. Conventional corn (80,000 seeds/ha) and brown midrib forage Sorghum (250,000 seeds/ha) were planted, harvested [34 and 32% of dry matter (DM), respectively], and ensiled for more than 10 mo. Four primiparous and 20 multiparous Holstein cows were randomly assigned to 1 of 4 diets in a replicated 4 × 4 Latin square design with a 2 × 2 factorial arrangement of treatments and 19-d periods. Treatment diets consisted of (1) corn Silage-based diet without xylanase, (2) corn Silage-based diet with xylanase, (3) Sorghum Silage-based diet without xylanase, and (4) Sorghum Silage-based diet with xylanase. The xylanase product was supplemented at a rate of 1.5 g of product/kg of total DM. Corn Silage had higher concentrations of starch (31.2 vs. 29.2%), slightly higher concentrations of crude protein (7.1 vs. 6.8%) and fat (3.7 vs. 3.2%), and lower concentrations of neutral detergent fiber (36.4 vs. 49.0%) and lignin (2.1 vs. 5.7%) than Sorghum Silage. Xylanase supplementation did not affect DM intake, milk yield, milk fat percentage and yield, milk protein percentage and yield, lactose percentage and yield, and 3.5% fat-corrected milk yield. Cows consuming corn Silage-based diets consumed 13% more DM (28.8 vs. 25.5 kg/d) and produced 5% more milk (51.6 vs. 48.9 kg/d) than cows consuming Sorghum Silage-based diets. Milk from cows consuming Sorghum Silage-based diets had 16% greater fat concentrations (3.84 and 3.30%) than milk from cows consuming corn Silage-based diets. This resulted in 8% greater fat yields (1.81 vs. 1.68 kg/d). Silage type did not affect milk protein and lactose concentrations. Xylanase supplementation did not affect nutrient digestibility. Cows consuming corn Silage-based diets showed greater DM (77.3 vs. 73.5%), crude protein (78.0 vs. 72.4), and starch (99.2 vs. 96.5%) digestibilities than cows consuming Sorghum Silage-based diets. In conclusion, xylanase supplementation did not improve production performance when high-producing dairy cows were fed corn Silage- or Sorghum Silage-based diets. In addition, production performance can be sustained by feeding Sorghum Silage in replacement of corn Silage.