Performance and financial efficiency of three dairy production systems in southern Brazil

Schiavon, Raquel Schiavon; Canever, Mário Duarte; Vieira, Arnaldo Diniz; Peripolli, Vanessa; Palmeira, Maila; Silva, Hernani Alves da; Schwegler, Elizabeth; Lucia, Thomaz; Bianchi, Ivan

doi:10.17533/udea.rccp.v34n1a01

Cited by 1 publication

(1 citation statement)

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“…Farms under cut-and-carry need to purchase 38% of feeds, while grazing farms only need 17%. Therefore, cut-and-carry farms are more vulnerable to price changes and availability of feed inputs which corresponds to what was proposed by Gilker and Weil (2018) and Schiavon et al (2021). Pincay-Figueroa et al (2016) did a study on smallscale milk production systems in the same research area, and reported that these systems are dependent on the purchase of commercial concentrates, that reach 60.7% of feeding costs for cut and carry systems, and 45.4% for grazing systems, with a reported lower profitability in cut and carry farms given higher costs and labour requirements, which corresponds to what is stated by Schiavon et al (2021).…”

Section: Characteristics Of Feeding Strategiessupporting

confidence: 59%

Nitrogen Utilisation and Greenhouse Gas Emissions in Small-Scale Dairy Systems in the Highlands of Central Mexico

Pozo-Leyva

López-González

Olea-Pérez

et al. 2022

Trop Subtrop Agroecosyst

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Background: Nitrogen (N) plays an important role within milk production systems (MPS), as an indicator of environmental and economic efficiency. Objective. The objective was to determine utilisation of N offered in the ration and estimate GHG from the enteric fermentation and manure management in 12 small-scale dairy farms under two feeding strategies. Methodology. Six farms had their herds in confinement under a cut-and-carry feeding system, and six farms implemented day grazing of mixed pastures, both systems used commercial concentrates as a supplement. Cows in milk production and their replacements were considered in the study. Pasture intake was calculated by difference in dry matter intake, using 3.2 % of live weight as intake factor. The N utilisation was determined by difference between N intake and excretion at each farm during a whole year operation. The GHG emissions were estimated following Tier 2 guidelines rom IPCC. Differences in feeding strategies were analysed with a completely random block design using farms as a blocking factor. Results. Mean farm size was 5.0 ha for cut-and-carry and 16.0 ha for grazing, and dry matter feed self-sufficiency was 62 and 83% respectively, considering 12% and 22% refusals for each strategy. There were no statistically significant differences (P>0.05) for any of the N utilisation components (N in diet, N in milk, N in manure, NH3 and N2O or GHG emissions. Implications. This is a novel report on assessing N fluxes and GHG emissions from small-scale dairy systems in Mexico and Latin America. Conclusions. In general, 87.6% of the N consumed is excreted in manure and urine. The feeding strategies did not diverge enough to have an impact on GHG emissions.

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Section: Characteristics Of Feeding Strategiessupporting

confidence: 59%