Small differences in biohydrogenation resulted from the similar retention times of fluid in the rumen of cattle grazing wet season C3 and C4 forage species

Costa, Diogo Fleury Azevedo; Quigley, S. P.; Isherwood, Peter; McLennan, S. R.; Sun, Xiaoqin; Gibbs, Steven J.; Poppi, D. P.

doi:10.1016/j.anifeedsci.2019.05.010

Cited by 7 publications

(6 citation statements)

References 35 publications

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“…The FA profile of the tropical forage utilised in this experiment differs greatly from results seen for temperate forages. Chilliard et al (2001) reported that temperate forages have 55-65% of their FA composed of linolenic acid, which was also observed in the work of Costa et al (2019) using ryegrass (Lolium perenne). The speargrass hay in the current experiment had a much lower (4% of total FA) proportion of linolenic acid than reported in temperate pastures.…”

Section: Discussionsupporting

confidence: 58%

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Chlorella pyrenoidosa supplementation increased the concentration of unsaturated fatty acids in the rumen fluid of cattle fed a low-quality tropical forage

Costa

Quigley

Isherwood

et al. 2020

Revista Brasileira De Zootecnia

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Ruminants Full-length research article Chlorella pyrenoidosa supplementation increased the concentration of unsaturated fatty acids in the rumen fluid of cattle fed a low-quality tropical forage ABSTRACT-The objective of this study was to evaluate the effects of algae and cottonseed meal (CSM) supplementation on the fatty acid (FA) profile in the rumen fluid (RF) of steers fed a low-quality forage. Five Bos indicus crossbred steers, 187±7.5 kg liveweight (LW; mean±SD), were fed a low crude protein speargrass (Heteropogon contortus) hay as the basal diet alone or supplemented with either Spirulina platensis, Chlorella pyrenoidosa, Dunaliella salina, or CSM in Latin square design. The proportion of individual FA in the RF of steers varied in response to supplement, and these were most likely due to differences in the FA profile in supplements. Steers supplemented with Chlorella pyrenoidosa and CSM had a higher concentration of linoleic acid (C18:2n-6) in RF than unsupplemented steers or steers offered the other supplements, but there was no difference in the concentration in RF in steers supplemented with Chlorella pyrenoidosa and CSM. The concentration of linolenic acid (C18:3n-3) was higher in the RF of unsupplemented steers compared with supplemented steers. Steers receiving Chlorella pyrenoidosa supplementation showed an increase in total unsaturated FA in the RF compared with other supplemented and unsupplemented steers, which if transferred to meat, could have health related benefits to consumers. None of the supplements led to the formation of isomers known to inhibit fat synthesis.

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Section: Discussionsupporting

confidence: 58%

“…Total lipid content was determined according to the method of Hara and Radin (1978). The FA content in hay, supplements, and RF was determined using a method based on Kramer et al (1997) using modifications proposed by Sun and Gibbs (2012), which was described in full by Costa et al (2019).…”

Section: Sample Collection and Analytical Proceduresmentioning

confidence: 99%

Chlorella pyrenoidosa supplementation increased the concentration of unsaturated fatty acids in the rumen fluid of cattle fed a low-quality tropical forage

Costa

Quigley

Isherwood

et al. 2020

Revista Brasileira De Zootecnia

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“…Indeed, Meat and Livestock Australia [ 21 ] actually describes Bos indicus as tropical breed cattle genetically adapted to survive and produce under adverse conditions, including heat and poor-quality pastures. Unique evolutionary traits of Bos indicus breeds, also known as zebu, to tropical climates are well-documented and include resistance to some ecto- and endoparasites and endemic diseases, heat and drought tolerance and other harsh environmental conditions, such as limited water, poor pasture and high humidity [ 16 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 ]. Although adapted to the local environments, Bos indicus cattle are often poor milk and meat producers [ 31 ].…”

Section: Cattle Production In the Tropicsmentioning

confidence: 99%

Tropical Beef: Is There an Axiomatic Basis to Define the Concept?

Lozano

Ngapo

Huerta-Leidenz

2021

Foods

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Cattle production in tropical regions has been estimated to account for just over half of cattle worldwide, yet it has not been demonstrated that sufficient similarities in the cattle exist to describe tropical cattle and, even less so, to characterize the meat from these animals. The aim of this review is to investigate the quality and nutrient composition of meat from cattle raised in the Tropics to determine if there is an axiomatic basis that would allow the definition of a concept of “tropical beef”. Tropical beef is the meat obtained from cattle raised in tropical environments, the population of which remains largely uncharacterized. Production systems in the Tropics are highly diverse but converge on the use of indigenous and Bos indicus breeds or Bos indicus-influenced crossbreeds under pasture feeding regimes. While some systems allow cattle to be slaughtered at ≤2 years of age, most often animals are ≥3 years. These production systems generally produce lean, low-yielding carcasses and tough (>46 N), lean (≤3.6% intramuscular fat) meat with a macronutrient composition otherwise similar to beef from animals raised elsewhere (72–74% moisture and 20–24% protein). Fatty acid profiles depend on the breed and production systems, while mineral content is influenced by the environment. Although lean and tough, tropical beef is highly acceptable to the consumers it serves, is culturally and traditionally relevant and, in many countries, contributes to food security. Consolidating the findings from animal and meat science studies in the Tropics has allowed the demonstration of an axiomatic basis defining “tropical beef” as a concept.

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“…The season in the year, e.g., wet or dry, was shown to affect rumen function in grazing cattle more than forage type [ 46 ]. The animals in the current study were grazing Marandu palisade grass pastures in the wet-dry transition period.…”

Section: Discussionmentioning

confidence: 99%

Citrus Pulp Replacing Corn in the Supplement Decreased Fibre Digestibility with No Impacts on Performance of Cattle Grazing Marandu Palisade Grass in the Wet-Dry Transition Period

Oliveira

Romanzini

Costa

et al. 2022

Animals

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The wet-dry transition period brings unique challenges to cattle producers in the tropics as the forage quality starts to decrease and animal performance is negatively affected unless supplementation strategies are applied. Two experiments were conducted concomitantly to evaluate the performance and metabolic parameters of cattle supplemented with two different energy sources under a C4 tropical grass continuous grazing system in the wet-dry transition period. In experiment (exp) 1, the liveweight (LW) gain of 42 growing Bos indicus Nellore bulls allocated to 12 paddocks of Uruchloa brizantha cv. Marandu, in a completely randomized block design, was evaluated to compare corn and citrus pulp-based supplements offered at 0.5% LW. Metabolism was evaluated in exp 2 with eight rumen-cannulated Nellore steers in an incomplete replicated Latin square design (RLSD) 4 × 2 (steers × treatment) fed the same two treatments as in exp 1. No differences in animal performance were observed between corn or citrus pulp-based supplements. Rumen pH, ammonia nitrogen, and blood urea nitrogen were lower in the rumen of animals supplemented with citrus pulp. Despite this, there were no differences in total dry matter intake amongst the two energy sources. The neutral detergent fibre digestibility of the diet containing corn decreased, but it neither affected performance nor liveweight gain per area. The findings suggest that corn can be replaced by citrus pulp with neither detrimental effects on animal performance nor indirect effects on pastures productivity.

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Small differences in biohydrogenation resulted from the similar retention times of fluid in the rumen of cattle grazing wet season C3 and C4 forage species

Abstract: , Small differences in biohydrogenation resulted from the similar retention times of fluid in the rumen of cattle grazing wet season C3 and C4 forage species, Animal Feed Science and Technology (2019),

Cited by 7 publications

References 35 publications

Chlorella pyrenoidosa supplementation increased the concentration of unsaturated fatty acids in the rumen fluid of cattle fed a low-quality tropical forage

Chlorella pyrenoidosa supplementation increased the concentration of unsaturated fatty acids in the rumen fluid of cattle fed a low-quality tropical forage

Tropical Beef: Is There an Axiomatic Basis to Define the Concept?

Citrus Pulp Replacing Corn in the Supplement Decreased Fibre Digestibility with No Impacts on Performance of Cattle Grazing Marandu Palisade Grass in the Wet-Dry Transition Period

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