Changes in New Zealand red meat production over the past 30 yr

Moot, Derrick J.; Davison, Rob

doi:10.1093/af/vfab027

Cited by 11 publications

(12 citation statements)

References 11 publications

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“…However, the increase in EE intake with the inclusion of PT had a bioactive effect on methanogenic rumen microorganisms, reducing not only the production of enteric methane but also the amount emitted per kilogram of meat produced. This is an important indicator of the efficiency of PT inclusion for the production of more environmentally friendly meat ( 38 , 39 ), and it has been widely studied ( 40 – 42 ).…”

Section: Discussionmentioning

confidence: 99%

Feed intake, emission of enteric methane and estimates, feed efficiency, and ingestive behavior in buffaloes supplemented with palm kernel cake in the Amazon biome

Júnior

Martorano

Nahum³

et al. 2022

Front. Vet. Sci.

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The use of palm kernel cake as an alternative to conventional ingredients, due to the presence of residual fat, can also reduce methane emissions. The objective of the study was to evaluate, in two different experiments, the effects of palm kernel cake supplementation on feed intake, enteric methane production and estimates, and the ingestive behavior of buffaloes in the Amazon biome. In experiment 1, to evaluate feed intake, methane production, and feed efficiency, 20 crossbred females, dry and empty, with a mean age of 34 months and an initial body weight of 514 ± 69 kg, were supplemented with palm kernel cake for 60 days. The supply was calculated in relation to body weight (BW) in four treatments: 0% (control); 0.25, 0.50, and 1% of palm kernel cake, distributed in a completely randomized design. In experiment 2, to evaluate the ingestive behavior, 24 mixed-breed, dry, and non-pregnant buffaloes supplemented with palm kernel cake were evaluated in the less rainy season (LR) and the wettest season (WS) of the eastern Amazon, distributed in a completely randomized in the same treatments as experiment 1. The inclusion of palm kernel cake in the supplementation increased the feed intake of dry matter and components (MM, OM, CP, NDF, ADF, and EE) (P < 0.01), reducing the production of enteric methane intake (P < 0.01), the ratio per kg of meat produced (P < 0.01) and feed efficiency (P < 0.01), and influenced the ingestive behavior (time grazing, rumination, and idleness) during the day. We suggest that further research be carried out to verify the results and improve the use of this co-product as a methanogenesis mitigator.

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Section: Discussionmentioning

confidence: 99%

Feed intake, emission of enteric methane and estimates, feed efficiency, and ingestive behavior in buffaloes supplemented with palm kernel cake in the Amazon biome

Júnior

Martorano

Nahum³

et al. 2022

Front. Vet. Sci.

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“…Current legislation has restricted the use of more than 190 kg N/ha (Ministry for the Environment 2022) and targeted agriculture to reduce its greenhouse gas emissions to enable New Zealand to meet international treaty obligations. The red meat sector has reduced emissions in total by over 30% since 1990 and, per unit, its emissions intensity declined by 30% over the same period (Moot and Davison 2021). This has largely been achieved by the reduction in sheep numbers, improved lambing percentages and increased carcass weights of lambs sold.…”

Section: Introductionmentioning

confidence: 99%

Total annual and seasonal DM production of improved and unimproved resident pastures at three farms in Canterbury

Moot

Smith²,

Mills³

2023

Journal of NZ Grasslands

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Yield differences between resident and improved pastures were quantified over a 3-4 yr period on three rainfed farms located in North Canterbury (Stockgrove, north of Amberley), Banks Peninsula (Willesden Farm) and the Mid-Canterbury foothills (Inverary Station). Improved pastures produced two- to three-times more feed annually than unimproved resident pastures at each property. At Stockgrove, improved chicory/white clover-based pastures produced 14.1±0.66 t DM/ha/yr compared with 4.36±0.41 t DM/ha/yr from unimproved pastures. Spring accounted for 85% (improved) and 72% (unimproved) of total annual DM production. At Willesden, lucerne monocultures produced 11.5±0.97t DM/ha/yr, which was more than the 4.44±0.45 t DM/ha/yr produced from resident pastures. Improved pastures at Inverary yielded 7.31±0.59 t DM/ha in summer/autumn of 2018/19, which was more than double the 3.34±0.43 t DM/ha from unimproved pastures. In 2019/2020, improved pastures produced 11.7±1.45 t DM/ha compared with 4.45±0.73 t DM/ha. In the third growth season (2020/2021) improved pastures produced 14.1±1.76 t DM/ha compared with 6.67±1.38 t DM/ha from unimproved pastures. In Year 4 (2021/22) the 12.6±1.29 t DM/ha from improved pastures was 56% more than the 8.07±0.85 t DM/ha from the unimproved pastures. Substantial increases in annual and seasonal feed supply patterns can be achieved through hill country pasture improvement.

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“…Change in the total number of breeding ewes (2 tooth and over put to ram; ●) and ewe lambing percentage (○) in New Zealand from 1990–91 to 2020–21 (Moot and Davison 2021). Figures for 2020–21 are provisional.…”

Section: Introductionmentioning

confidence: 99%

“…In the absence of practical CH 4 inhibitors (Leahy et al . 2019) or other technologies, it is likely that in the medium term these can only be achieved by further reducing the mean time from birth to slaughter for sheep and cattle (Moot and Davison 2021), which results in lower emissions and reduced maintenance respiration (de Klein et al . 2008).…”

Section: Introductionmentioning

confidence: 99%

A review of legume research and extension in New Zealand (1990–2022)

Moot

2022

Crop & Pasture Science

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Legumes have underpinned transformational change on New Zealand sheep and beef farms over the last 30 years. This was through an emphasis on ewe nutrition based on lucerne or red clover dominant pastures, and increased use of subterranean and white clovers on uncultivatable hill country. Pre- and post-weaning lamb growth rates have increased, and enabled earlier slaughter of heavier lambs. The farm systems results include greater numbers of hoggets mated, higher lambing percentages and greater ewe efficiency (kg lamb weaned/kg ewe mated). Extension packages to support legume use have compared growth rates of resident and legume-based pastures, economic analyses of successful farms and management packages for the most appropriate legume in different environments. Over the same period, the dairy industry rapidly expanded in cow numbers and area onto flat irrigated land on the Canterbury Plains. The nitrogen deficiency of perennial ryegrass was overcome by a linear increase in nitrogen fertiliser use. Environmental concerns from this intensification has led to a legislated nitrogen cap of 190 kg/ha.year. This, coupled with a recent trebling in urea price, has returned attention to increasing the white clover content of these pastures. Nitrogen applications can be minimised by using diverse pastures sown with a legume, herb and <8 kg/ha of perennial ryegrass. Work on other legumes, including annuals and those with condensed tannins, has to date failed to increase their use in most pastoral settings, with the exception of the perennial lupin which is adapted to high-aluminium soils in the South Island High Country.

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Changes in New Zealand red meat production over the past 30 yr

Cited by 11 publications

References 11 publications

Feed intake, emission of enteric methane and estimates, feed efficiency, and ingestive behavior in buffaloes supplemented with palm kernel cake in the Amazon biome

Feed intake, emission of enteric methane and estimates, feed efficiency, and ingestive behavior in buffaloes supplemented with palm kernel cake in the Amazon biome

Total annual and seasonal DM production of improved and unimproved resident pastures at three farms in Canterbury

A review of legume research and extension in New Zealand (1990–2022)

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