scholarly journals Production Performance, Nutrient Digestibility, and Milk Composition of Dairy Ewes Supplemented with Crushed Sunflower Seeds and Sunflower Seed Silage in Corn Silage-Based Diets

Animals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2354
Author(s):  
Eduardo Cardoso-Gutiérrez ◽  
Alondra Cristel Narváez-López ◽  
Lizbeth E. Robles-Jiménez ◽  
Andrés Morales Osorio ◽  
María de Guadalupe Gutierrez-Martinez ◽  
...  
Keyword(s):  
Soybean Meal ◽  
Sunflower Seed ◽  
Milk Composition ◽  
Nutrient Digestibility ◽  
Corn Silage ◽  
Production Performance ◽  
Sunflower Seeds ◽  
Dairy Ewes ◽  
Alfalfa Hay ◽  
Sorghum Grain

This study determined production performance, nutrient digestibility, and milk composition of dairy ewes supplemented with crushed sunflower seeds (Helianthus annuus) and sunflower seed silage in corn silage-based diets. Six ewes were grouped in a double 3 × 3 Latin square design with three periods of 21 days. All treatments were based on ad libitum corn silage. Control diet was based on alfalfa hay (333 g/kg DM), sorghum grain (253 g/kg DM), triticale grain (200 g/kg DM), soybean meal (167 g /kg DM), and vitamin and mineral premix (47 g/kg DM). Sunflower seeds (SF) and sunflower seed silage (SFS) treatments consisted of alfalfa hay (333 g/kg DM), sorghum grain (267 g/kg DM), triticale grain (100 g/kg DM), soybean meal (167 g /kg DM), SF or SFS (87 g/kg DM) and vitamin and mineral premix (47 g/kg DM). Compared to control, SF and SFS increased intake and digestibility of fiber components, such as neutral detergent fiber (NDF) and acid detergent fiber (ADF). Body weight, nitrogen balance, milk yield, milk fat yield, milk protein yield, lactose yield and milk urea N were similar between treatments. Overall, results demonstrated that crushed sunflower seeds and ensiled seeds do not change significantly productive parameters of dairy sheep.

scholarly journals Volumosos na alimentação de vacas da raça Holandês em condições experimentais no Brasil - Metanálise

2018 ◽  
Vol 39 (6) ◽  
pp. 2749
Author(s):  
Dileta Regina Moro Alessio ◽  
João Pedro Velho ◽  
Vicente Celestino Pires Silveira ◽  
Deise Aline Knob ◽  
Marcos Busanello ◽  
...  
Keyword(s):  
Milk Yield ◽  
Feed Efficiency ◽  
Meta Analysis ◽  
Milk Composition ◽  
Nutrient Digestibility ◽  
Corn Silage ◽  
Holstein Cows ◽  
Single Source ◽  
Experimental Feeding ◽  
Voluntary Intake

The aim of this study was to evaluate the composition, voluntary intake, and digestibility of the diet of Holstein cows, as well as milk yield and milk composition as a function of different roughage sources used under experimental feeding conditions in Brazil, through meta-analysis. The database of this study consisted of 109 experiments with 424 treatments of 3,903 lactating Holstein cows. The data were obtained from studies published between January 2000 and December 2015, and were evaluated by variance analysis. Lactating dairy cow diets with a single source of roughage other than corn silage resulted in lower voluntary intake, milk yield, and differences in milk composition, compared to diets based on corn silage or the combination of two roughages, probably due to reduced nutrient digestibility. Diets based on corn silage are distinguished by feed efficiency, milk yield, and composition. Diets based on the combination of two roughage sources are similar with respect to milk yield and composition, compared to diets based on corn silage; whereas, diets with a single source of roughage (other than corn silage), even when containing a higher proportion of concentrate, led to reduced voluntary intake, milk yield, and food efficiency due to the lower utilization of the nutrients. Diets based on corn silage in general allow a higher proportion of roughage in the diet due to energy density.

COMPARISON OF WILTED-ALFALFA SILAGE AND ALFALFA HAY PRESERVED WITH PROPIONIC ACID IN CORN-SILAGE-BASED DIETS FOR MILKING COWS

1988 ◽  
Vol 68 (3) ◽  
pp. 801-809 ◽  
Author(s):  
A. S. ATWAL ◽  
J. D. ERFLE
Keyword(s):  
Propionic Acid ◽  
Crude Protein ◽  
Rumen Fluid ◽  
Control Diet ◽  
Milk Composition ◽  
Corn Silage ◽  
Acid Detergent Fiber ◽  
Alfalfa Hay ◽  
Fiber Diet ◽  
Alfalfa Silage

Thirty cows (9 uniparous and 21 multiparous) were fed three diets during weeks 5–16 of lactation. The dietary ingredients were adjusted weekly to reflect their oven dry matter (DM). The control diet was a low-fiber diet containing urea-treated corn silage (UCS), well-dried alfalfa hay and buffered concentrate (525:125:350 DM basis). The two test diets contained corn silage and either wilted-alfalfa silage (WAS) or alfalfa hay treated with propionic acid (PAH) and concentrate (300:300:400 DM basis). For the three blended diets, acid detergent fiber (169, 195 and 212 g kg−1 DM) and digestible energy (12.73, 12.50 and 12.25 MJ kg−1 DM) were different (P < 0.05). The crude protein content of the WAS diet was higher (P < 0.05) than that of the PAH diet (164 vs. 154 g kg−1 DM). Average DM intakes (21.8, 22.5 and 21.2 kg d−1) and solids-corrected milk yields (26.9, 27.9 and 26.6 kg d−1) were similar for the three treatments. Also there was no treatment effect (P > 0.05) on milk composition and acetate/propionate ratios of rumen fluid. Thus WAS and PAH diets supported similar production and equalled the low fiber control diet. Key words: Lactation, urea, corn silage, alfalfa, wilted silage, propionic acid treatment.

Gas production and dry matter degradability of diets for ruminants

2006 ◽  
Vol 34 ◽  
pp. 21-28
Author(s):  
F. Bovera ◽  
S. Calabrò ◽  
R. Schettini ◽  
M.I. Cutrignelli ◽  
F. Infascelli ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Soybean Meal ◽  
Dry Matter ◽  
Starch Content ◽  
Statistical Significance ◽  
Gas Production ◽  
Corn Silage ◽  
Ruminant Nutrition ◽  
Alfalfa Hay ◽  
Corn Grain

SummaryFour feeds widely used in ruminant nutrition (corn silage, alfalfa hay, corn grain and soybean meal) and nine diets prepared in the laboratory by thorough mixing of these four feeds in different ratios, were analysed for: chemical composition according to the Weende and Van Soest schemes. Starch content, as well as total gas production and dry matter degradability after 8, 24 and 48 hours of incubation were measured. The same parameters were calculated for the nine diets from the measurements made on each of the four components (i.e. estimated values). For the chemical determinations, the differences between the analytical results (real values) and the corresponding estimated values varied little and did not reach statistical significance. However, statistically significant differences (P<0.05) between real and estimated values appeared for gas production at 24 hours (48.07 vs. 44.13 ml/200mg DM) and for DM degradability after 8 hours of incubation (32.35 vs. 30.56 %). The differences in the gas production measurements were removed when Diet 1 was excluded.

scholarly journals Effect of Dietary Forage: Concentrate Ratio on Pre-Caecal and Total Digestive Tract Digestibility of Diverse Feedstuffs in Donkeys as Measured by the Mobile Nylon Bag Technique

Animals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1070 ◽  
Author(s):  
Li-Lin Liu ◽  
Xiao-Ling Zhou ◽  
Hong-Jian Yang
Keyword(s):  
Digestive Tract ◽  
Rice Straw ◽  
Soybean Meal ◽  
Latin Square ◽  
Nutrient Digestibility ◽  
Limiting Factor ◽  
Corn Meal ◽  
Alfalfa Hay ◽  
Significant Difference ◽  
Dietary Treatments

The domestic donkey is a unique equid species with specific nutritional requirements, however, limited laboratory evidences are available to address the digestibility contribution of the prececum in relation to the total digestive tract. In the present study, six caecum-fistulated adult female Xinjiang donkeys served as the experimental animals in a 3 × 3 Latin square design, and mobile nylon bag technique was applied to determine the effect of dietary F:C ratio on pre-caececum and total digestive tract digestibility of rice straw, alfalfa hay, corn meal, and soybean meal. The dietary treatments included: (1) HF, a high-fiber ration (F:C = 80:20), (2) MF, a medium-fiber ration (F:C = 55:45), and (3), LF, a low-fiber ration (F:C = 35:65). The experiment consisted of three consecutive Latin square periods, and each period lasted 25 days. In each period, the animals were administrated naso-gastrically nylon bags (38 μm pore size) containing aforementioned feeds. After 1.5 h intubation, the bags were checked once an hour and collected at the ileo-caecal junction (small intestine bag, D1) and in the feces (fecal bag, D2). Regardless whatever feeds were introduced, the percentage of bag collected (BC) was quadratically (HF) or linearly (MF and LF) increased against different fixed bag collection time. The highest BC occurred in MF (73.8%), but no significant difference was observed between HF (62.3%) and LF (50.8%). The lowest mean bag retention time was observed in HF (2.7 h), and no significant difference occurred between MF (4.6 h) and LF (5.0 h) diets. For each feed, D1 and D2 digestibility for DM, CP, NDF, and ADF did not differ among three dietary treatments (p > 0.05). Regardless of whatever diets were fed to the donkeys, D2 digestibility for DM and CP among the feeds ranked as: soybean meal > corn meal > alfalfa hay > rice straw (p < 0.01). D1 digestibility for DM among the feeds ranked as: corn meal > soybean meal > alfalfa hay > rice straw (p < 0.01). D1 digestibility for CP among the feeds ranked as: soybean meal > corn meal > alfalfa hay > rice straw (p < 0.01). In summary, dietary forage: concentrate ratio did not affect pre-caecal or total tract nutrient digestibility. The fiber level in feeds was the main limiting factor to affect the digestibility contribution of the pre-caecum in relation to the total digestive tract.

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