The Effect of the Lactation Stage on Milk Yield, Composition and Renneting Parameters of Milk in Sheep Reared Under Intensive Nutrition

Konečná, Leona; Kuchtík, Jan; Sedláková, Markéta; Šustová, Květoslava; Filipčík, Radek

doi:10.11118/actaun201967010085

Cited by 5 publications

(3 citation statements)

References 13 publications

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“…Stage of Lactation. Several authors have reported an increase of fat and protein throughout lactation in ewe milk, although a slight decrease can be observed in mid-lactation (Novotná et al, 2009;Konečná et al, 2019). In agreement with the results from our study, Cipolat-Gotet et al, (2016) reported this same increase in fat and protein concentration at late lactation, as well as a positive correlation of these variables with CY.…”

Section: Categorical Factorssupporting

confidence: 92%

Derivation of multivariate indices of milk composition, coagulation properties, and curd yield in Manchega dairy sheep

Sigler

Figueroa

Caballero-Villalobos

et al. 2021

Journal of Dairy Science

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This study approaches the interrelation patterns between composition of milk and whey, curd yield, chromaticity, syneresis, and technological quality of Manchega sheep milk using multivariate factor analysis. In addition, the effect of the main husbandry components (flock, prolificacy, season of the year, stage of lactation, and parity) on the common latent factors that define the pattern of variation of Manchega milk was assessed. For this purpose, 1,200 individual Manchega ewe milk samples from 4 different flocks registered under the Protected Designation of Origin Queso Manchego were analyzed (50 ewes/flock). Samples were collected in 2 different seasons of the year (spring and autumn) and at 3 time points per season: early, mid-, and late lactation. The obtained results suggested that curd yield mainly depends on milk composition, and the retention of water in the curd is related to coagulation traits. Thus, composition and moisture content could be useful indicators to assess the efficiency and quality of milk intended for cheesemaking, regardless of the analysis of coagulation properties. Finally, in terms of husbandry, a direct effect of flock and stage of lactation was observed on all analyzed factors, with a lower influence of season and parity.

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Section: Categorical Factorssupporting

confidence: 92%

Derivation of multivariate indices of milk composition, coagulation properties, and curd yield in Manchega dairy sheep

Sigler

Figueroa

Caballero-Villalobos

et al. 2021

Journal of Dairy Science

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show abstract

“…The values obtained are in line with previous studies for SE sheep milk [29,30]. Several other studies show an increasing tendency in fat and protein content during the lactation period [31][32][33][34][35]. The milk samples analysed showed higher acidity values than the one study [29]; however, the values are in line with those recommended for SE Table 2 shows the statistical significance of flock lactation stage, interaction on the final characteristics of PDO SE cheese.…”

Section: Milksupporting

confidence: 88%

Influence of Cardoon Flower (Cynara cardunculus L.) and Flock Lactation Stage in PDO Serra da Estrela Cheese

Fogeiro

Barracosa

Oliveira

et al. 2020

Foods

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Serra da Estrela (SE) cheese is one of the most appreciated Portuguese cheeses, being produced only from raw ewe’s milk, cardoon flower and salt. Cardoon takes part in two important processes in cheese production—coagulation and proteolysis—contributing to its unique features. Furthermore, milk chemical characteristics change during the milking season, being another factor that account for the high variability of cheese attributes. Therefore, the purpose of this work is to study the influence of cardoon flower (commercial, 6 M and 3 M) and flock lactation stage (November 2018, February and April 2019) in the final characteristics of SE cheese. The parameters analysed were moisture, protein, fat and salt contents, texture and colour. Results showed that flock lactation stage has the highest influence in all the studied characteristics, corresponding the early stages of lactation to the most protein-rich and low-fat cheeses. Cardoon flower affects mainly fat and rind colour. This study allows us to conclude that seasonal changes in ewe’s milk have a considerable impact in cheese attributes, and that although cardoon type had a more restrained effect, when used with expertise it may help adjust cheese sensory characteristics in order to obtain a final product that matches consumer acceptability requirements.

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“…The second used approach consisted of linear regressions of individual udder dimension character-Czech Journal of Animal Science, 65, 2020 (11): 424-430 https://doi.org/10.17221/196/2020-CJAS conditions (Mierlita et al 2011;Pesinova et al 2011;Tancin et al 2011;Macuhova et al 2017;Kusza et al 2018). Other results obtained in intensive sheep breeds showed that Lacaune sheep reached higher milk production and fat percentage during a similar period of lactation, while their protein content was on a similar level (Konecna et al 2019). However, previously published results of Konecna et al (2013) obtained in Lacaune sheep, East Friesian sheep and their crossbreds showed very comparable results of milk production or milk components to our study.…”

Section: Statistical Evaluationmentioning

confidence: 99%

Analysis of the relationship between milk production, milk composition and morphological udder measurements in Wallachian sheep

Milerski¹,

Ptáček²,

Ducháček³

et al. 2020

CZECH J ANIM SCI

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The aim of this study was to evaluate the potential of udder measurements for prediction of milk yield, milk components and somatic cell count in non-dairy Wallachian sheep. The study was performed on 38 ewes in the Beskids Mountains kept under extensive management on pasture. Milk production (MILK) as well as samples for milk component and somatic cell count determination were collected during two separate control days (42<sup>nd</sup> day and 100<sup>th</sup> day of lactation on average). Rear udder depth (RUD, cm), udder width (UW, cm), and teat length (TL, mm) were measured at each control day as well. Linear regressions of udder measurement characteristics showed a predictive character ability for MILK only. An increasing of 70 g MILK corresponded with a 1 cm increase of RUD (P < 0.01) or 1 cm increase of UW (P < 0.001). These positive linear relationships were supported by the positive partial correlation analysis between MILK and RUD (r = 0.503; P < 0.001) or MILK and UW (r = 0.627; P < 0.001). An increase of 1 mm TL was associated with a 10 g (P < 0.01) increase of MILK; however, correlations between these traits were not significant. Results of this study demonstrate an alternative way of MILK ability in non-dairy Wallachian sheep population in general. Correlation and regression analysis further estimated this expected potential in detail using udder measurement characteristics. Measurement of RUD and UW could serve as a tool for breeding and flock management in order to maintain and improve milk production; however, there was no obvious evidence for the prediction of milk composition characteristics and somatic cell count.

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The Effect of the Lactation Stage on Milk Yield, Composition and Renneting Parameters of Milk in Sheep Reared Under Intensive Nutrition

Cited by 5 publications

References 13 publications

Derivation of multivariate indices of milk composition, coagulation properties, and curd yield in Manchega dairy sheep

Derivation of multivariate indices of milk composition, coagulation properties, and curd yield in Manchega dairy sheep

Influence of Cardoon Flower (Cynara cardunculus L.) and Flock Lactation Stage in PDO Serra da Estrela Cheese

Analysis of the relationship between milk production, milk composition and morphological udder measurements in Wallachian sheep

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