Effect of a Trace Mineral Injection on Performance and Trace Mineral Status of Beef Cows and Calves

Willmore, Carmen J; Hall, J. B.; Drewnoski, Mary E.

doi:10.3390/ani11082331

Cited by 2 publications

(2 citation statements)

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“…The NPK values are not the only criteria when assessing fertilisers, especially when soil is deficient in certain essential minerals. In particular, both Cu and Zn are the most commonly deficient minerals around the world (Willmore et al, 2021). In this study, orange peels and fruit led to significantly higher Cu content in the frass while the opposite was found for Zn; also confirmed from PC analysis.…”

Section: Mineral Content In Frasssupporting

confidence: 80%

“…The mineral composition of soil is important to enhancing plant productivity but also in the production of nutritious food for livestock and human consumers. Both copper (Cu) and zinc (Zn) are the most commonly deficient minerals and soil quality is becoming worse due to unstainable farming practices (Willmore et al, 2021). Moreover, the increased use of ammonium sulphate is exacerbating this problem because the sulphate acts as a Cu antagonist (Arthington and Ranches, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Mineral composition in black soldier fly (Hermetia illucens) larvae and resulting frass from fruit and their peels

Romano

Sinha

Powell

et al. 2023

JIFF

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Farming black soldier fly (Hermetia illucens) larvae (BSFL) leads to two products; BSFL as high quality protein/lipid and leftover ‘frass’ as an organic fertiliser. Little information exists on the influence of different substrates on the mineral composition of these products. In this study, orange or banana peels, fruit and in their combination were fed to BSFL for two weeks. BSFL survival was high (95-100%) and not significantly different among treatments. Peels of either fruit led to significantly shorter and lighter BSFL. However, banana peels significantly increased P, K, Ca, Na, Mn and Mg in BSFL compared to all others. In the frass, the P content was unaffected by treatment while K was significantly highest and lowest when banana and orange peels were composted with BSFL, respectively. Meanwhile, Cu and Zn, which are often limiting nutrients, were significantly highest and lowest in the orange peel/fruit treatment and banana treatment, respectively. In all cases, the tested minerals in BSFL were substantially higher than the initial substrate, especially for Fe, and the mineral levels generally reflected those in the substrate. Although fruits and their peels are not recommended as the only food source for BSFL and provided little Fe, Ni or Cu, the peels could be viewed as valuable supplements to enhance the P, K, Ca, and Mg content in BSFL and frass.

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Section: Mineral Content In Frasssupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%