Forage management intensification and supplementation strategy: Intake and metabolic parameters on beef cattle production

Delevatti, Lutti Maneck; Romanzini, Eliéder Prates; Koscheck, Jefferson Fabiano Werner; Araujo, Tiago Luis da Ross de; Renesto, Diego Monteira; Ferrari, Adriana Cristina; Barbero, Rondineli Pavezzi; Mulliniks, J. T.; Reis, Ricardo Andrade

doi:10.1016/j.anifeedsci.2018.11.004

Cited by 29 publications

(22 citation statements)

References 28 publications

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“…Likewise, APX is found in the chloroplasts, mitochondria, peroxisoma and cytosol detoxifying the hydrogen peroxide generated under drought conditions (Miller et al 2010). Additionally, crude protein, NDF and digestibility are feed parameters related with degradability and nutritional contribution of livestock forage (Delevatti et al 2019). Finally, the importance of biomass production lies in being the main food source for livestock.…”

Section: Discussionmentioning

confidence: 99%

Enhancement of drought tolerance on guinea grass by dry alginate macrobeads as inoculant of Bacillus strains

Mendoza-Labrador

Romero-Perdomo

Hernández³

et al. 2019

Preprint

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Drought is responsible for almost 70% of total crop damage in tropical and subtropical countries. In the Colombian Caribbean, drought has caused low availability of Guinea grass (Megathyrsus maximus) in forage amount and quality, generating increase in production costs in livestock systems. In this study, we aimed at designing and evaluating dry macro-polymeric inoculants of Bacillus strains and used them successfully to mitigate drought effect on Guinea grass (M. maximus). We chose Bacillus sp XT13 and Bacillus megaterium XT14 strains, previously selected for their capacity to mitigate drought stress on Guinea grass. For the inoculant formulation process, a concentration of 3.2% alginate was used for both microorganisms, selecting the polymer-bacterium ratio of 70:30 for XT13 and 80:20 for XT14. The results of the experiments in greenhouse showed that drought had a negative effect on Guinea grass growth, but the PGPB application with or without macro-polymeric dry matrix improved plant growth significantly. We also observed that co-inoculation of the strains generated a greater beneficial effect than individual inoculation. Interestingly, co-inoculation of XT13 and XT14 under the dry macro-polymeric formulation increased biomass production of the aerial part (7.32%), root biomass, (25.3%), nutritional quality parameters, such as digestibility (3.32%), protein (20.3%); proline accumulation increased (21.06%) and both neutral digestible fiber (2.43%) and APX antioxidant activity (24.2%) decreased with respect to co-inoculation of both bacteria without formulation. These findings have shown that dry macrobeads immobilization has a significantly positive influence on the capacity of XT13 and XT14 bacterial strains to induce drought stress tolerance in Guinea grass.

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Section: Discussionmentioning

confidence: 99%

Enhancement of drought tolerance on guinea grass by dry alginate macrobeads as inoculant of Bacillus strains

Mendoza-Labrador

Romero-Perdomo

Hernández³

et al. 2019

Preprint

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“…High-quality forage is essential for the production performance and health of ruminants [ 1 ]. At present, there is a serious shortage of high-quality forages in the ruminant industry in China [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Nutrient Composition, Rumen Degradation Characteristics, and Feeding Value of Chinese Rye Grass, Barley Grass, and Naked Oat Straw

Khan

Liu

et al. 2021

Animals

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The current study was designed to investigate the chemical composition, rumen degradation characteristics, and feeding value of three roughages commonly used in Asia as ruminant feed, including Chinese rye grass (CRG), barley grass (BG), and naked oat straw (NO). Four Holstein Friesian cows equipped with permanent rumen fistulas were chosen for experimental trials in the current study. The nylon bag method was carried out to measure the crude protein (CP), acid detergent fiber (ADF), ruminal degradability of dry matter (DM), and neutral detergent fiber (NDF). Our analysis revealed that the contents of CP in the CRG (9.0%) and BG (8.9%) were higher than in the NO (5.94%). The contents of NDF in the CRG (64.97%) and NO (63.83%) were lower than in the BG (67.33%), and the content of ADF in the CRG (37.03%) was lower than in the BG (37.93%) and NO (38.28%). The ED values of DM in the NO and CRG were significantly higher (p < 0.001) than in the BG. The effective degradability (ED) values of NDF were the highest in the CRG and lowest in the NO (p < 0.001). In addition, the ED values of ADF were the highest in the CRG and lowest in the BG (p < 0.001). The ED value of CP in the CRG was significantly higher than that in the BG and NO (p < 0.001). The estimated total digestible nutrients (TDN) (54.56%) and DM degradation rate (DDM) (60.06%) of the CRG were higher than those of BG and NO. In addition, the expected DM intake (DMI), estimated relative feed value (RFV), and estimated relative feed quality (RFQ) of the BG were lower than those of the CRG and NO. Altogether, based on our findings, we concluded that the nutritional quality, feeding value and effective rumen degradation rate of CRG were better than of BG and NO.

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“…High-quality roughage is of great importance in ruminant production [1]. Currently, the amount of high-quality roughage is inadequate for the ruminant industry in China [2].…”

Section: Introductionmentioning

confidence: 99%

Effects of Urtica cannabina to Leymus chinensis Ratios on Ruminal Microorganisms and Fiber Degradation In Vitro

Zhang

Wang

et al. 2020

Animals

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The study was conducted in vitro to investigate the effects of different ratios of Urtica cannabina and Leymus chinensis on fiber microstructure and digestibility in ruminal fluid. The experiment was divided into five groups based on the U. cannabina/L. chinensis ratios: A (0:100), B (30:70), C (50:50), D (70:30), and E (100:0). The culture medium was collected at 0, 1, 3, 6, 12, and 24 h. The results showed that: (1) in vitro crude protein degradability (IVCPD) was higher in group A, whereas in vitro neutral detergent fiber degradability (IVNDFD) was higher in group C (p < 0.05); (2) protozoa count was increased from 1 h to 3 h and decreased afterwards, with significant differences observed in several genera (p < 0.05); (3) microbial crude protein (MCP) contents at 1, 3, 6, and 24 h were higher in groups A and C (p < 0.05); (4) the basic tissue of U. cannabina was gradually degraded. At 24h, the secondary xylem vessel structure was observed in groups B and C, but not in groups D and E. In summary, there was higher neutral detergent fiber (NDF) digestibility, higher rumen MCP contents, and lower protozoa count, showing the significance of the 50:50 ratio for microbial growth and fiber digestibility.

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Forage management intensification and supplementation strategy: Intake and metabolic parameters on beef cattle production

Cited by 29 publications

References 28 publications

Enhancement of drought tolerance on guinea grass by dry alginate macrobeads as inoculant of Bacillus strains

Enhancement of drought tolerance on guinea grass by dry alginate macrobeads as inoculant of Bacillus strains

Analysis of Nutrient Composition, Rumen Degradation Characteristics, and Feeding Value of Chinese Rye Grass, Barley Grass, and Naked Oat Straw

Effects of Urtica cannabina to Leymus chinensis Ratios on Ruminal Microorganisms and Fiber Degradation In Vitro

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