Influence of feeding fruit by-products as alternative dietary fibre sources to wheat bran on beef production and quality of Angus steers

Tayengwa, Tawanda; Chikwanha, Obert C.; Dugan, M. E. R.; Mutsvangwa, T.; Mapiye, Cletos

doi:10.1016/j.meatsci.2019.107969

Cited by 32 publications

(10 citation statements)

References 52 publications

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“…Karlsson and Martinsson [11] also found that the lambs fed with high protein supplements had a greater total gain and ADG and more efficient feed conversion. Based on these previous reports and our findings, we speculate that an appropriate dietary protein level could enhance protein availability and increase amino acid absorption in animals and eventually result in increased growth performance [25,26].…”

Section: Growth Performancesupporting

confidence: 83%

Effects of Dietary Protein Levels on Growth Performance, Carcass Traits, Serum Metabolites, and Meat Composition of Tibetan Sheep during the Cold Season on the Qinghai-Tibetan Plateau

Wang

Geng

et al. 2020

Animals

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Dietary protein is a critical nutrient that directly influences the health and production of livestock. Recent studies showed that protein supplements could enhance the growth performance of Tibetan sheep. However, there is a lack of information regarding the influence of dietary protein levels on carcass traits and meat composition. This study investigated the effects of dietary protein levels on growth performance, carcass traits, serum metabolites, and meat composition in Tibetan sheep during the cold season on the Qinghai-Tibetan Plateau. A total of eighteen 1-year-old, healthy, castrated Tibetan sheep with similar initial body weights (31.7 ± 0.72 kg) were randomly divided into three treatment groups with different dietary protein level (low protein (LP, 10.1%); medium protein (MP, 12.1%); high protein (HP, 14.1%)) diets. The results indicated that the Tibetan sheep fed with the MP and HP diets had greater final body weights (BWs), average daily gains (ADGs), and average daily feed intakes (ADFIs) (p < 0.05). The MP and HP diets also improved the hot carcass weight, net meat (including the fat) weight, and bone weight of the sheep significantly (p < 0.05). Besides, the dietary protein levels could significantly affect the serum concentrations of growth hormone (p < 0.05). The diameter of muscle fibers in the MP group was significantly greater than that in the LP group (p < 0.05), while the density of muscle fibers showed the opposite trend. The dietary protein levels only significantly (p < 0.05) influenced the ether extract content and profile content of the longissimus dorsi muscle but had no effect on other parameters of meat composition. In summary, our results indicate that dietary protein levels affect growth performance, carcass traits, and meat composition and that diets containing 12.1% and 14.1% protein are recommended to obtain better production performance and meat products in Tibetan sheep, rather than a diet containing 10.1% protein, during the cold season on the Qinghai-Tibetan Plateau.

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Section: Growth Performancesupporting

confidence: 83%

Effects of Dietary Protein Levels on Growth Performance, Carcass Traits, Serum Metabolites, and Meat Composition of Tibetan Sheep during the Cold Season on the Qinghai-Tibetan Plateau

Wang

Geng

et al. 2020

Animals

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“…Voicu et al [6] showed that the growth performance and digestive metabolism of beef cattle are not adversely affected by many of these polyphenolic compounds. Notably, condensed tannins (CT) stand out as the foremost bioactive constituents, constituting 58.7% of the total phenolic compounds in GP [7]. Condensed tannins have more hydroxyl groups and a higher polymerization of polyphenols, making them stronger antioxidants than simple phenolics [8].…”

Section: Introductionmentioning

confidence: 99%

Effects of Grape Pomace on Growth Performance, Nitrogen Metabolism, Antioxidants, and Microbial Diversity in Angus Bulls

Li,

Shi,

Deng

et al. 2024

Antioxidants

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Polyphenol-rich grape pomace (GP) represents a valuable processing by-product with considerable potential as sustainable livestock feed. This study aimed to investigate the effects of different levels of GP on the growth performance and nitrogen utilization efficiency, antioxidant activity, and rumen and rectum microbiota of Angus bulls. Thirty Angus bulls were allocated three dietary treatments according to a completely randomized design: 0% (G0), 10% (G10), and 20% (G20) corn silage dry matter replaced with dried GP dry matter. The results showed that the average daily gain (ADG) of the G0 group and G10 group was higher than that of the G20 group (p < 0.05); urinary nitrogen levels decreased linearly with the addition of GP (linear, p < 0.05). In terms of antioxidants, the levels of catalase (CAT) in the G10 group were higher than in the G0 and G20 groups (p < 0.05), and the total antioxidative capacity (T-AOC) was significantly higher than that in the G20 group (p < 0.05). In addition, in the analysis of a microbial network diagram, the G10 group had better microbial community complexity and stability. Overall, these findings offer valuable insights into the potential benefits of incorporating GP into the diet of ruminants.

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“…One of the industry waste products that has recently attracted attention in the Australian livestock industries is grape marc (GM), which is also known as grape pomace, a waste by-product from the wine making industry that contains solid remains of grapes (seed and skin) after pressing for juice [4]. Grape marc has been used successfully as a supplement in forage-based dairy and beef production systems [1,5,6], sheep [6,7] and beef in feedlot production systems [8]. It has the potential to be widely used in forage-based sheep production systems in Australia.…”

Section: Introductionmentioning

confidence: 99%

“…To the best of our knowledge, many of the previous studies that used GM were carried out in a controlled indoor feeding system for cattle [1] and sheep [17], where animals were fed individually. The majority of the studies used ensiled or dried GM, which required prior processing before feeding [1,7,8]. There have been limited feeding studies conducted to demonstrate the effects of inclusion of GM in a sheep production system/study on sheep performance, considering the overall physiological, environmental pollution and metabolic changes.…”

Section: Introductionmentioning

confidence: 99%

Effect of Grape Marc Added Diet on Live Weight Gain, Blood Parameters, Nitrogen Excretion, and Behaviour of Sheep

Zhang

et al. 2022

Animals

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A 39-day field experiment was conducted to assess the effect of grape marc (GM) feeding on sheep productivity, health, and environmental sustainability. Forty merino sheep were divided into two dietary groups, each having five replications (n = 4 sheep/replication). Experimental diet consisted of: (i) control: 55% lucerne hay + 40% wheat grain + 5% faba bean; (ii) GM treatment: control diet with 20% replaced by GM on a dry matter (DM) basis. The GM treatment contained 2–10% higher phytochemical contents than the control. The DMI from the GM treatment was 15% higher than the control (p < 0.001). No difference was found in sheep live weight gain, behaviour, and quality between groups (p > 0.05). No difference was found in total faecal production, faecal organic matter, and nitrogen contents (p > 0.05) and parasitic egg count. The GM treatment led to higher nitrogen intake (23.1 vs. 27.2 g/d) and faecal nitrogen excretion (6.3 vs. 8.7 g/d) compared to the control. Urinary creatinine, allantoin, and purine derivatives were lower in the GM treatment than control (p < 0.05). However, both groups had similar purine derivatives/DMI (i.e., indicator of rumen microbial protein synthesis efficiency; p > 0.05). Overall, the results showed that GM can replace 20% of the control ration to maintain sheep productivity, health, and environmental sustainability.

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Influence of feeding fruit by-products as alternative dietary fibre sources to wheat bran on beef production and quality of Angus steers

Cited by 32 publications

References 52 publications

Effects of Dietary Protein Levels on Growth Performance, Carcass Traits, Serum Metabolites, and Meat Composition of Tibetan Sheep during the Cold Season on the Qinghai-Tibetan Plateau

Effects of Dietary Protein Levels on Growth Performance, Carcass Traits, Serum Metabolites, and Meat Composition of Tibetan Sheep during the Cold Season on the Qinghai-Tibetan Plateau

Effects of Grape Pomace on Growth Performance, Nitrogen Metabolism, Antioxidants, and Microbial Diversity in Angus Bulls

Effect of Grape Marc Added Diet on Live Weight Gain, Blood Parameters, Nitrogen Excretion, and Behaviour of Sheep

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