Short communication: The main factors affecting somatic cell count in organic dairy farming

Galdo, Inmaculada Orjales; López‐Alonso, Marta; Miranda, Marta; Bermúdez, Ruth Rodríguez; Crespo, Francisco Rey; Villar, Ana

doi:10.5424/sjar/2017154-11769

Cited by 3 publications

(5 citation statements)

References 14 publications

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“…However, our results are in agreement with studies conducted in Northern Spain, which showed higher SCC in ORG than CONV herds (Villar and López-Alonso, 2015;Orjales et al, 2016bOrjales et al, , 2017, partially associated with higher prevalence of chronic subclinical mastitis in ORG farms (Villar et al, 2016). The increase in SCC has been linked to increasing parity, with the use of alternative treatments instead of antibiotics, without use of teat dipping in the milking routine, and with lower milk production (Orjales et al, 2017). This last aspect was explained by a dilution effect related to greater milk production.…”

Section: Effects On Bulk Milk Gross Composition Scs Vite and Aa Compo...supporting

confidence: 93%

“…This last aspect was explained by a dilution effect related to greater milk production. As discussed by Orjales et al (2017), ORG farms are usually low-input systems that lead to lower milk production levels compared with CONV farms. However, the dilution effect does not apply to our scenario, because our study included farms with a similar annual average milk production per cow (Table 1).…”

Section: Effects On Bulk Milk Gross Composition Scs Vite and Aa Compo...mentioning

confidence: 99%

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Detailed comparison between organic and conventional milk from Holstein-Friesian dairy herds in Italy

Manuelian

Vigolo

Burbi

et al. 2022

Journal of Dairy Science

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Several studies have reported gross composition differences between organic and conventional milk; however, most studies have not considered other factors such as breed and diet ingredients, which are known to influence milk composition. Thus, this study aimed to provide a detailed characterization of Holstein-Friesian cow milk from organic (ORG) and conventional (CONV) herds with similar diet ingredients and in the same geographic area. Bulk milk samples (n = 225) of 12 ORG and 12 CONV farms were collected from September 2019 to August 2020. Farms were located in Northern Italy, included corn (meal, silage, or both) in the lactating diets, and had similar management conditions, but ORG herds spent a period on pasture. Factors affecting milk composition were tested using a linear mixed model, which included calendar month, farming system (ORG and CONV), and their interactions as fixed effects, and farm nested within farming system as random effect. Results showed that total fat, lactose, vitamin E, and AA did not significantly differ between farming systems. Total protein and casein contents were significantly lower in ORG than CONV herds, and somatic cell score (SCS) was greater in ORG than CONV. Among minerals, differences were observed for Fe, K, Mg, and S in some months, being lower in ORG than CONV for K, Mg, and S and greater or lower for Fe depending on the month. Among fatty acid (FA) groups, index, and ratios, only polyunsaturated FA and n-3 FA tended to be greater in ORG than CONV, and cis-FA were greater in ORG than CONV during October. Among the most abundant individual FA, only C16: 1n -9 differed, being lower in ORG than CONV. The calendar month (and hence seasonal feed ration) was significant for milk gross composition, SCS, vitamin E, mineral profile (except for Mo, Sr, and Zn), AA profile, FA groups (except for medium-chain FA), FA index and ratios, and individual FA (except C16:0). We conclude that the overall milk composition was quite similar between the 2 farming systems. This could be related to the similarity of the selected farms, the Holstein-Friesian breed, and generally high level of intensity in both farming systems.

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Section: Effects On Bulk Milk Gross Composition Scs Vite and Aa Compo...supporting

confidence: 93%

Section: Effects On Bulk Milk Gross Composition Scs Vite and Aa Compo...mentioning

confidence: 99%

Detailed comparison between organic and conventional milk from Holstein-Friesian dairy herds in Italy

Manuelian

Vigolo

Burbi

et al. 2022

Journal of Dairy Science

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“…As was expected, in the present study LS and percentage of SCC surpassing >200,000 somatic cells increased with lactation number in all breed groups (Reneau, ). These increases become more evident when cows survive during many lactations (Tancin, ) as in organic systems (Orjales Galdo et al, ; Orjales et al, ). Studies carried out in organic and pasture‐based systems to evaluate the effect of breed on SCC, LS or udder health produce inconclusive results, although only broad comparisons can be made.…”

Section: Discussionmentioning

confidence: 99%

Breed performance in organic dairy farming in Northern Spain

Rodríguez‐Bermúdez

Miranda

Fouz³

et al. 2019

Reprod Domestic Animals

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Organic farm management combines best environmental practices, a high level of biodiversity, preservation of natural resources and high animal welfare standards.To meet these criteria, farmers must have livestock well adapted to local organic conditions and information about how different breeds and crosses perform under different conditions. The objective of this study was to compare the performance of different pure breeds and cross-breeds of cattle in organic dairy systems in NorthernSpain. The data analysed were obtained from monthly records kept between 2010 and 2016 on organic farms registered in the regional milk recording system. Analysis of various traits indicated that the Holstein-Friesian breed suits the organic production system in the study region. Although the reproductive performance of Holstein-Friesian cows was poorer (in terms of number of services per conception) than that of cross-breed and Brown Swiss cows, the Holstein-Friesian produced more milk and lived longer. In addition, there was no difference in calving type or calving ease between the different breed groups. The better milk fat and protein yields produced by the crosses may be useful traits for farmers interested in milk transformation. The advantage of continuing to use Holstein-Friesian cattle is that the breed is predominant worldwide, and the genealogy is well documented. If Holstein-Friesian cattle continue to be used, the main priority will be to search for well-adapted bulls (particularly for pasture-based conditions) and to elaborate a genetic merit index for organic and pasture-based systems with the aim of predicting and minimizing genotype × environment interactions. K E Y W O R D Scattle, fat yield, longevity, milk yield, organic systems, protein yield, reproduction

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“…Importantly, in most studies which reported significant differences in SCC, the levels were still below 400,000 cells per mL in both conventional and organic milk. At present, the employed farming system appears to have less influence on udder health compared with management factors (e.g., routine teat dipping and seeking veterinary treatment) and animal level variables (e.g., parity, breed) [36,[77][78][79]. Hence, making a generalization about whether organic farmers have a lower tolerance for poor udder health is not feasible due to potential variations in ethical considerations and divergent regulations regarding the use of antibiotics as a treatment option for organic cows among different countries [63].…”

Section: Udder Health and Somatic Cell Count (Scc)mentioning

confidence: 99%

“…Similar to milk SCCs, contradictory results have been reported regarding increased or decreased TBCs when comparing raw milk produced using organic and conventional systems [23]. Differing TBCs across studies have been attributed to management factors and animal-level variables [36,[77][78][79].…”

Section: Microbiological Qualitymentioning

confidence: 99%

Production, Composition and Nutritional Properties of Organic Milk: A Critical Review

Linehan,

Patangia,

Ross

et al. 2024

Foods

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Milk is one of the most valuable products in the food industry with most milk production throughout the world being carried out using conventional management, which includes intensive and traditional systems. The intensive use of fertilizers, antibiotics, pesticides and concerns regarding animal health and the environment have given increasing importance to organic dairy and dairy products in the last two decades. This review aims to compare the production, nutritional, and compositional properties of milk produced by conventional and organic dairy management systems. We also shed light on the health benefits of milk and the worldwide scenario of the organic dairy production system. Most reports suggest milk has beneficial health effects with very few, if any, adverse effects reported. Organic milk is reported to confer additional benefits due to its lower omega-6–omega-3 ratio, which is due to the difference in feeding practices, with organic cows predominantly pasture fed. Despite the testified animal, host, and environmental benefits, organic milk production is difficult in several regions due to the cost-intensive process and geographical conditions. Finally, we offer perspectives for a better future and highlight knowledge gaps in the organic dairy management system.

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Short communication: The main factors affecting somatic cell count in organic dairy farming

Cited by 3 publications

References 14 publications

Detailed comparison between organic and conventional milk from Holstein-Friesian dairy herds in Italy

Detailed comparison between organic and conventional milk from Holstein-Friesian dairy herds in Italy

Breed performance in organic dairy farming in Northern Spain

Production, Composition and Nutritional Properties of Organic Milk: A Critical Review

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