Unveiling unstable non-acid incidence in Holstein cows fed with corn silage or sugarcane

Pinheiro, Jardeson de Souza; Rocha, Lethiane G.; Andrade, Dhones R. de; Rotta, Polyana Pizzi; Rezende, Jaqueline P.; Pires, Ana Clarissa dos Santos; Marcondes, Marcos Inácio

doi:10.3168/jds.2022-21821

Cited by 2 publications

(3 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The lower milk stability of pasture-raised cows compared to feedlot cows may be due to the greater difficulty of the former in meeting nutritional requirements because of the variations in forage amount and composition, in addition to greater exposure of the animals to the environment. A parallel can be drawn with studies that compared the supply of corn silage and sugar cane and found greater milk stability when corn silage was provided (Andrade et al ., 2016; Pinheiro et al ., 2022). The authors attributed this finding to the higher concentration of fermentable sugars from sugarcane, which may have caused mild ruminal and metabolic acidosis, increasing iCa concentration (Pinheiro et al ., 2022).…”

Section: Discussionmentioning

confidence: 99%

“…A parallel can be drawn with studies that compared the supply of corn silage and sugar cane and found greater milk stability when corn silage was provided (Andrade et al ., 2016; Pinheiro et al ., 2022). The authors attributed this finding to the higher concentration of fermentable sugars from sugarcane, which may have caused mild ruminal and metabolic acidosis, increasing iCa concentration (Pinheiro et al ., 2022).…”

Section: Discussionmentioning

confidence: 99%

“…Several factors affect milk stability, including nutrition (Stumpf et al ., 2013), feeding (Pinheiro et al ., 2022), genetics (Davis et al ., 2001), age or number of lactations, lactation stage (Omoarukhe et al ., 2010), environmental factors, mammary gland health including bacterial contamination (Zanela et al ., 2006), methodological factors (Zanela and Ribeiro, 2018), heat stress (Abreu et al ., 2020) and the concentration of ionized calcium (iCa) in milk (Akkerman et al ., 2019). These factors have already been identified and associated with cases of low milk stability on small farms, however, few studies have evaluated the effect of these factors on milk stability in herds with different levels of technical management.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Characterization of variables related to high stability of raw cow milk

Martins,

Marinho,

Fischer

et al. 2024

Journal of Dairy Research

View full text Add to dashboard Cite

This research paper analyzes the stability of raw cow milk in the alcohol test and seeks to understand to know the factors that influence milk stability and the occurrence of unstable non-acid milk. Milk samples were collected from the cooling tanks of rural farmers in the state of Paraná twice in summer and twice in winter. The farms were classified according to the production system: pasture with supplementation and feedlot. The following variables were analyzed: stability in the alcohol test, titratable acidity, ionized calcium concentration (iCa), chemical composition of milk, somatic cell count and standard plate count. The results showed that milk stability was greater in winter vs. summer, when the milk contained higher iCa, and in the feedlot vs. pasture system. The Pearson Correlation between variables (ethanol stability, milk composition, iCa, cooling tank temperature, milk volume, number of milking, number of cows milked, fat/protein ratio, distance and travel time) were analyzed. Stability was negatively correlated with iCa concentration and positively with lactose content. Logistic regression of the risk of unstable non-acid milk at 72% alcohol (UNAM72) showed that only iCa and lactose were determinants, while evaluation of the same risk at 78% alcohol revealed iCa, titratable acidity, lactose and milk urea nitrogen as risk factors. Under the dairy farming conditions of Paraná state, the frequency of UNAM72 was low (12.16%) and was higher in summer and in pasture systems with supplementation. In conclusion, in dairy herds bred with high technological level, with adequate nutritional and health management, the frequency of UNAM is low and is related to nutritional management abnd, perhaps, heat stress, factors that alter iCa and lactose levels.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Characterization of variables related to high stability of raw cow milk

Martins,

Marinho,

Fischer

et al. 2024

Journal of Dairy Research

View full text Add to dashboard Cite

show abstract

Including clover and herb species in grazing forages – effects on milk production, milk processability and milk fatty acid profile of late lactation dairy cows supplemented with grass silage and concentrate

McCarthy,

Walsh,

Serra

et al. 2024

J. Agric. Sci.

View full text Add to dashboard Cite

Milk production declines as dairy cows enter late lactation, resulting in reduced milk quality and negatively impacting milk processability, such as rennet coagulation time (RCT), milk pH and ethanol stability (ES), leading to seasonality issues for milk processors. Multispecies forages, containing grass, legume and herb species, require lower N inputs and are of interest to dairy farmers. However, little is known about the effect of grazing multispecies forages on milk processability characteristics in late lactation dairy cows. Forty-five autumn-calving dairy cows in late lactation were allocated to 1 of 3 grazing forages; perennial ryegrass (PRG; Lolium perenne), perennial ryegrass and white clover (Trifolium pratense) (PRGWC), and a 6 – species multispecies forage (MULTI) containing perennial ryegrass, timothy (Phleum pratense), white clover, red clover (Trifolium repens), chicory (Cichorium intybus) and plantain (Plantago lanceolata). Cows were allocated 12 kg DM grazed forage and supplemented with a grass – silage TMR and concentrate. Forage DMI was significantly lower for cows grazing PRG. Milk yield increased when cows grazed PRGWC (18.07 kg/d) and MULTI (17.84 kg/d) compared to PRG (16.08 kg/d). Milk RCT (mins) and ES (%) were unaffected by treatment. However, offering cows PRGWC and MULTI increased the concentration of C18:2 cis – 9, 12 and C18:3 cis – 9, 12, 15 in milk compared to PRG. Compared to PRG, grazing forages containing clover and herb species improved milk yield and beneficially altered milk fatty acid profile in late lactation dairy cows without negatively impacting milk processability.

show abstract

Unveiling unstable non-acid incidence in Holstein cows fed with corn silage or sugarcane

Cited by 2 publications

References 43 publications

Characterization of variables related to high stability of raw cow milk

Characterization of variables related to high stability of raw cow milk

Including clover and herb species in grazing forages – effects on milk production, milk processability and milk fatty acid profile of late lactation dairy cows supplemented with grass silage and concentrate

Contact Info

Product

Resources

About