Review: Milk production from dairy cows in Argentina: Current state and perspectives for the future

Lazzarini, Belén; Baudracco, Javier; Tuñon, G.; Gastaldi, Laura; Lyons, Nicolas; Quattrochi, H.; López‐Villalobos, N.

doi:10.15232/aas.2019-01842

Cited by 33 publications

(32 citation statements)

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“…As such, broadening our understanding of Lactobacillus phages is highly relevant for the strong local dairy industry. 4 The program made use of environmental soil samples for isolation of Mycobacteria phages and raw milk samples from local dairy farms for Lactobacillus phages. Students were divided into groups (2-3 students/group) to isolate, purify, and prepare high titer stocks of the bacteriophages.…”

Section: Isolation Of Novel Phages and Morementioning

confidence: 99%

Tightening Bonds in Latin America Through Phage Discovery

Payaslián

Gradaschi

Salazar

et al. 2021

PHAGE

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Between 2015 and 2019, we hosted an International Phage Course at Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina. The 2-week full-time course was hands-on and included lectures from renowned phage biologists. Participating students were able to meet and discuss with recognized experts from around the world in a familiar setting, facilitating the establishment of scientific collaborations and the expansion of their networks. Eighty-four students from 14 Latin American countries have participated in the course, which included isolation, characterization, genome sequencing, and annotation of novel phages. We have successfully created a coursework that enabled the acquisition of new knowledge and expertise in bacteriophage biology and strengthened ties among Latin American colleagues.

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Section: Isolation Of Novel Phages and Morementioning

confidence: 99%

Tightening Bonds in Latin America Through Phage Discovery

Payaslián

Gradaschi

Salazar

et al. 2021

PHAGE

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“…The diet was formulated for a dairy cow of 620 kg of body weight (BW), producing 35 kg of milk with 3.5% milk fat and 3.0% milk true protein (NRC 2001). The composition of the TMR, on a dry matter (DM) basis, was 42% of concentrate, 32% of corn silage and 26% of alfalfa hay (Table 1), a diet commonly used in confinement dairy systems of Argentina (Lazzarini et al 2019). The diet components were mechanically mixed during 10 min once a day, at 0630 h in a mixer wagon (Mainero Model 2910, Mainero, Bell Ville, C ordoba, Argentina), and then fed to cows twice daily on a feed pad with one metre of linear space available per animal.…”

Section: Experimental Design Animals and Treatmentsmentioning

confidence: 99%

A simplified feeding system did not affect milk production compared with a total mixed ration system in dairy cows

Cuffia

Baudracco

Romero

et al. 2020

Italian Journal of Animal Science

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The objective of our study was to compare animal performance of a simplified feeding system, named easy feeding (EF), with animal performance of a total mixed ration (TMR) feeding system, using high yielding dairy cows in early lactation. Two treatments, TMR (n ¼ 16) and EF (n ¼ 16), were evaluated in a completely randomised design. Holstein cows (617 ± 85.1 kg of body weight and 52 ± 16 days in milk) were used. The TMR treatment consisted of a mix of concentrates, corn silage and alfalfa hay, mixed and offered twice a day, while EF treatment involved the same diet components offered separately, with concentrate offered individually in the milking parlour, alfalfa hay offered as bales and corn silage offered straight from the silo bag, with no intervention of machinery in the feeding process. The feeding system had no effect on milk production, fat and protein yield, total net energy intake, total dry matter intake, body weight, body condition score plasma metabolites and eating and ruminating time. Cows in EF system had higher non-fibrous carbohydrates intake, lower intakes of crude protein and neutral detergent fibre and longer drinking time than cows in TMR system. Cows in EF selected a diet according to their preferences, which may have allowed them to achieved similar milk yield to TMR cows, despite the advantages of mixed diets in TMR treatment. Thus, the EF system is an attractive alternative to traditional TMR system, provided that costs of feeding operations are effectively reduced. HIGHLIGHTSA new simplified feeding system was compared to TMR system Milk production was similar in both feeding systems Simplified feeding system is an attractive alternative to traditional TMR systems, provided that costs of feeding operations are effectively reduced in EF ARTICLE HISTORY

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“…Most dairy farms are small farms, predominantly pasture-based with year-round cattle grazing supplemented with compound feed, and an average stocking-rate of 1.4 cows per hectare, in non-irrigated land [4]. Dairying is seldom exclusive to an operation, and beef and grain farming commonly accompanies a rotational forage dairy system.…”

Section: Introductionmentioning

confidence: 99%

“…Dairying is seldom exclusive to an operation, and beef and grain farming commonly accompanies a rotational forage dairy system. Following the global trend in this industry, the current slim economic margins and growing inflation rates, however, dairy farms in Argentina are undergoing a process of consolidation and intensification, evidenced by a reduction on the number of farms and a parallel increase in cattle productivity and herd size over the last 20 years [2,4]. At the same time, non-grazing systems have gained traction, currently accounting for 16% of the dairy operations.…”

Section: Introductionmentioning

confidence: 99%

Towards Sustainable Dairy Production in Argentina: Evaluating Nutrient and CO2 Release from Raw and Processed Farm Waste

et al. 2021

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Mineralization studies are the first step in determining the usefulness of an amendment such as fertilizer, and are essential to creating guidelines for dairy waste management to help producers make informed decisions. Our goal was to assess the effects of dairy raw, composted, and digested manure amendments on C, N, and P mineralization to evaluate the feasibility of their in-farm production and use as organic fertilizers. The liquid and solid fractions of dairy effluent (LDE, SDE), dairy effluent digestate (DED), onion–cattle manure digestate and compost (OCMD, OCMC) were characterized by chemical and spectroscopic methods. Soil microcosms with LDE, SDE, DED, OCMD and OCMC and the C, N and P mineralization were determined periodically. Elemental and structural differences among amendments led to contrasting profiles of C, N, and P mineralization, and thus to differences in nutrient availability, immobilization, and CO2 emission. All processed materials were more stable than untreated waste, reducing C emissions. Digestates showed net C immobilization, and supplied the highest levels of available N, creating a relative P deficit. Instead, the compost supplied N and P via mineralization, producing a relative P excess. Future studies should aim at evaluating fertilization strategies that combine both kinds of amendments, to exploit their complimentary agronomic characteristics.

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Review: Milk production from dairy cows in Argentina: Current state and perspectives for the future

Cited by 33 publications

References 1 publication

Tightening Bonds in Latin America Through Phage Discovery

Tightening Bonds in Latin America Through Phage Discovery

A simplified feeding system did not affect milk production compared with a total mixed ration system in dairy cows

Towards Sustainable Dairy Production in Argentina: Evaluating Nutrient and CO2 Release from Raw and Processed Farm Waste

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