scholarly journals Effect of sugarcane fiber digestibility, conservation method and concentrate level on the ruminal ecosystem of beef cattle

AMB Express ◽  
2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Johnny Maciel de Souza ◽  
Dannylo Oliveira de Sousa ◽  
Bruno Souza de Mesquita ◽  
Lígia Garcia Mesquita ◽  
Luis Felipe Prada Silva
Keyword(s):  
Beef Cattle ◽  
Fiber Digestibility ◽  
Concentrate Level ◽  
Conservation Method

Effect of forage conservation method, concentrate level and propylene glycol on the fatty acid composition and vitamin content of cows' milk

2005 ◽  
Vol 72 (3) ◽  
pp. 349-361 ◽  
Author(s):  
Kevin J Shingfield ◽  
Pirjo Salo-Väänänen ◽  
Eero Pahkala ◽  
Vesa Toivonen ◽  
Seija Jaakkola ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Ascorbic Acid ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Milk Fat ◽  
Milk Fatty Acid ◽  
Vitamin Content ◽  
Concentrate Level ◽  
Conservation Method

Based on potential health benefits, there is a need to develop effective strategies for enhancing milk fat concentrations of cis-9 18[ratio ]1, 18[ratio ]3 n-3 and conjugated linoleic (CLA) content in milk without compromising the sensory or storage characteristics of processed milk or dairy products. Sixteen Finnish Ayrshire dairy cows were used in a cyclic change-over experiment with four 21-d experimental periods and a 4×2×2 factorial arrangement of treatments to evaluate the effects of forage conservation method, concentrate level and supplements of propylene glycol (PG), and their interactions on milk fatty acid composition and vitamin content. Experimental treatments consisted of four conserved forages offered ad libitum, supplemented with two levels of a standard concentrate (7 or 10 kg/d) and PG (0 and 210 g/d) fed as three equal meals. Primary growths of timothy and meadow fescue sward were conserved by ensiling with none (NA), an inoculant enzyme preparation (IE) or a formic acid based (FORM) additive or as hay 1 week later. Conservation of grass by drying rather than ensiling resulted in lower forage 18[ratio ]2n-6, 18[ratio ]3n-3, total fatty acid and fat-soluble vitamin concentrations. In spite of lower intakes, milk fat 18[ratio ]2n-6 and 18[ratio ]3n-3 content was higher (P<0·05) for hay than for silage diets (12·1, 9·6, 9·6 and 9·3 and 5·00, 3·51, 4·27 and 2·93 g/kg total fatty acids, for hay, NA, IE and FORM silages, respectively). Forage conservation method had no clear effects on milk trans 18[ratio ]1 or CLA content. Compared with silage, hay diets resulted in milk containing lower (P<0·001) riboflavin, α-tocopherol and β-carotene concentrations, but had no effect on ascorbic acid, thiamine, pyridoxine or retinol content. Feeding more concentrates had no effect on milk fatty acid composition or milk vitamin content, other than lowering (P<0·001) 16[ratio ]0 concentrations from 348 to 338 g/kg fatty acids. Supplements of PG led to small (P<0·05) increases in milk 13[ratio ]0 anteiso and 15[ratio ]0 content from 1·06 and 11·3 to 1·22 and 12·6 g/kg fatty acids and reduced (P<0·05) the concentrations of ascorbic acid (16·1 v. 15·1 g/kg milk).

scholarly journals 124 Polyclonal Antibody Preparations from Avian Origin Increased Fiber Digestibility of Beef Cattle Receiving a Backgrounding Diet

2020 ◽  
Vol 98 (Supplement_2) ◽  
pp. 52-53
Author(s):  
Gleise Medeiros da Silva ◽  
Tessa M Schulmeister ◽  
Federico Tarnonsky ◽  
Federico Podversich ◽  
Mariana Eloisa Garcia-Ascolani ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Polyclonal Antibody ◽  
Fusobacterium Necrophorum ◽  
Nutrient Digestibility ◽  
Neutral Detergent Fiber ◽  
Streptococcus Bovis ◽  
Antibody Preparation ◽  
Fiber Digestibility ◽  
Randomized Design ◽  
To Receive

Abstract This study investigated the effects of feeding an avian-derived polyclonal antibody preparation (PAP; CAMAS, Inc.) against Streptococcus bovis, Fusobacterium necrophorum, and lipopolysaccharides (40, 35, and 25% of the preparation, respectively) on plasmatic haptoglobin and glucose concentrations (Exp. 1), and apparent total tract digestibility (Exp. 2) of beef cattle consuming a backgrounding diet. In Exp. 1, Angus crossbreed heifers and steers (n = 90; 373 ± 62 kg BW) were randomly assigned to receive a common ad libitum diet (76% TDN, 15.9% CP, DM basis) with the addition of 1 (PAP1), 3 (PAP3), or 0 g (CON) of PAP daily. Plasmatic concentrations of glucose and haptoglobin were measured on d 0, 14, 28, 42, and 56. In Exp. 2, 25 Angus crossbreed steers (390 ± 65 kg BW) were used in a completely randomized design. Steers were housed in 3 pens to receive the same diet and treatments from Exp. 1. Feed intake was measured using GrowSafe feed bunks, and indigestible neutral detergent fiber was used as the internal marker. In Exp. 1, a day effect was detected for plasmatic haptoglobin and glucose concentrations (P ≤ 0.04). In Exp. 2, no difference in DMI was observed (P = 0.88). Dry matter, organic matter, and acid detergent fiber digestibility in the total tract were reduced (P ≤ 0.05), whereas CP digestibility tended to decrease (P ≤ 0.07) in steers receiving PAP3 vs. CON and PAP1. Apparent total tract starch digestibility was increased (P ≤ 0.02) for PAP1 vs. PAP3. Neutral detergent fiber digestibility was greater (P &lt; 0.01) for PAP1 vs. CON and PAP3. Feeding 1 g/d of a PAP against Streptococcus bovis, Fusobacterium necrophorum, and lipopolysaccharides increased fiber digestibility in backgrounding diets; however, further research is needed to understand the impaired responses on nutrient digestibility when greater doses are provided.

Effect of fiber digestibility and conservation method on feed intake and the ruminal ecosystem of growing steers1

2014 ◽  
Vol 92 (12) ◽  
pp. 5622-5634 ◽  
Author(s):  
D. O. Sousa ◽  
B. S. Mesquita ◽  
J. Diniz-Magalhães ◽  
I. C. S. Bueno ◽  
L. G. Mesquita ◽  
...  
Keyword(s):  
Feed Intake ◽  
Fiber Digestibility ◽  
Conservation Method

scholarly journals SUBTITUSI PENGGUNAAN SILASE TEBON JAGUNG DENGAN SILASE SORGHUM TERHADAP KECERNAAN SERAT KASAR DAN PROTEIN KASAR PADA SAPI LOKAL PENGGEMUKAN

2020 ◽  
Vol 4 (1) ◽  
pp. 47-51
Author(s):  
Rizky Ramadhanu Wibisono, Liman, Farida Fathul, dan Erwanto
Keyword(s):  
Beef Cattle ◽  
Protein Digestibility ◽  
Analysis Of Covariance ◽  
Feed Ingredient ◽  
Significance Level ◽  
Fiber Digestibility ◽  
Corn Crop ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Sorghum Silage

The research that aimed to find out the level of substitution of corn crop silage with sorghum silage as a future feed ingredient on the fiber and protein digestibility of beef cattle has been held in May -- July 2018 in the people's farm in Negla Sari village, South Lampung Regency, Lampung. This study used  Completely Randomized Design with three treatments and three replications. The treatments given were R1: 30% corn crop silage + 70% concentrate; R2: 15% corn crop silage + 15% sorghum silage + 70% concentrate; and R3: 30% sorghum silage + 70% concentrate. This research used nine beef cattle which were allocated in individual cages. The data obtained were analyzed by analysis of covariance using a 5% significance level. Variables in this study were fiber and protein digestibility. The results showed that substitution of the use of corn crop silage with sorghum silage did not significantly affect (P>0.05) on the fiber and protein digestibility.  Keywords:  Beef cattle, Digestibility fiber, Digestibility protein, Sorghum silage, Silage corn, crop

Fibrolytic enzymes increase fiber digestibility and growth rate of steers fed dry forages

1995 ◽  
Vol 75 (4) ◽  
pp. 641-644 ◽  
Author(s):  
K. A. Beauchemin ◽  
L. M. Rode ◽  
V. J. H. Sewalt
Keyword(s):  
Growth Rate ◽  
Weight Gain ◽  
Beef Cattle ◽  
Key Words ◽  
Fibrolytic Enzymes ◽  
Fiber Digestibility ◽  
Alfalfa Hay ◽  
Ad Libitum ◽  
Barley Silage

Seventy-two steers (289 kg) were offered ad libitum cubed alfalfa hay, cubed timothy hay, or barley silage supplemented with incremental levels of xylanase (IU) and cellulase (FPU), combined in a ratio of 1 IU:0.04 FPU. For alfalfa hay, low and moderate levels (900 to 4733 IU kg−1 DM) increased weight gain by up to 30% (P < 0.10), whereas, for timothy hay, the highest level (12 000 IU kg−1 DM) improved gain (P < 0.10) by 36%. No response to enzymes was observed for barley silage. Fibrolytic enzymes improve weight gain of cattle but optimal enzyme levels depend upon the type of forage. Key words: Beef cattle, forages, enzymes, cellulase, xylanase, carbohydrases

Effect of forage conservation method, concentrate level and propylene glycol on intake, feeding behaviour and milk production of dairy cows

2002 ◽  
Vol 74 (2) ◽  
pp. 383-397 ◽  
Author(s):  
K. J. Shingfield ◽  
S. Jaakkola ◽  
P. Huhtanen
Keyword(s):  
Dairy Cows ◽  
Propylene Glycol ◽  
Milk Production ◽  
Milk Fat ◽  
Feeding Behaviour ◽  
Milk Protein ◽  
Animal Performance ◽  
Concentrate Level ◽  
Gluconeogenic Substrate ◽  
Conservation Method

AbstractThe current study was conducted to establish if effects on animal performance due to differences in forage composition resulting from conservation method could be compensated for by increases in concentrate feeding or supplements of a gluconeogenic substrate. Thirty-two Finnish Ayrshire dairy cows were used in a cyclic changeover experiment with four 21-day experimental periods and a 4 ✕ 2 ✕ 2 factorial arrangement of treatments to evaluate the effects of forage conservation method, concentrate level and propylene glycol (PG), and their interactions, on intake, feeding behaviour and milk production. Experimental treatments consisted of four conserved forages offered ad libitum, supplemented with two levels of a cereal-based concentrate (7 or 10 kg/day) and PG (0 and 210 g/day) offered as three meals of equal size. Forages were prepared from primary growths of timothy and meadow fescue swards and ensiled using no additive (NA), an inoculant enzyme preparation (IE) or a formic-acid based (FA) additive or conserved as hay 1 week later. Cows given silage-based diets had higher (P 0·001) forage dry-matter (DM) intakes (mean increase 0·76 kg/day), spent less (P 0·001) time eating and chewing (mean response -159 and -119 min/day, respectively) and produced more (P 0·05) energy-corrected milk (ECM), milk fat and milk lactose (respective mean responses 1·52, 0·098 and 0·033 kg/day) than animals given hay-based diets. Use of an additive during ensiling further improved (P 0·05) silage DM intake, ECM yield and milk protein secretion (mean 0.72, 0.70 and 0.038 kg/day, respectively). Dietary inclusion of PG decreased forage DM intake for hay, IE and FA silage-based diets (mean –0·14, –0·16 and –0·42 kg/day, respectively) but elicited positive responses (mean 0·57 kg/day) for cows given NA silage. Furthermore, PG supplementation had no (P > 0·05) effects on ECM yield or milk protein output but depressed (P 0·05) mean milk fat content from 46·6 to 45·6 g/kg. Increases in concentrate feeding were associated with a reduction in the total amount of time cows spent eating, chewing and ruminating and elicited (P 0·001) mean DM intake, ECM yield, milk fat and milk protein responses of 1·5, 1·62, 0·061 and 0·064 kg/day, respectively. Use of a gluconeogenic substrate or increases in concentrate feeding were unable to compensate for variations in animal performance due to forage conservation method.

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