Milk yield and composition of Rambouillet ewes under intensive management

Ochoa-Cordero, M.; Torres-Hernández, Glafíro; Ochoa-Alfaro, Ana Erika; Vega-Roque, L.; Mandeville, Peter B

doi:10.1016/s0921-4488(02)00019-6

Cited by 25 publications

(24 citation statements)

References 11 publications

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“…A similar trend and comparable CN contents were reported by Jelínek et al (1990) and Pugliese et al (2000). DMY gradually decreased depending on the stage of lactation, which is in line with the results published by Hassan (1995) and Ochoa-Cordero et al (2002). The lactose content in the course of lactation was relatively the most constant of all components of milk under study, confirming its role as an osmotic regulator and a compensator for variations in all other components.…”

Section: Resultssupporting

confidence: 91%

“…On the contrary, its lowest content was found on the 129 th day of lactation. This tendency is in line with the results published by Ochoa-Cordero et al (2002). On the other hand, Pavič et al (2002) reported the highest L content at the beginning of lactation and the lowest at the end of lactation.…”

Section: Resultssupporting

confidence: 89%

“…All phenotypic correlations between DMY and particular contents of TS, SNF, F, P, CN and UN were negative and high (P ≤ 0.001). Maria and Gabina (1993) and Ochoa-Cordero et al (2002) also reported that the correlations between milk yield and the particular contents of F and P were negative and high. The majority of phenotypic correlations between L content and particular contents of other milk components were not significant, which is in line with the results published by Čapistrák et al (1995).…”

Section: Resultsmentioning

confidence: 93%

“…The majority of phenotypic correlations between L content and particular contents of other milk components were not significant, which is in line with the results published by Čapistrák et al (1995). On the other hand, Ochoa-Cordero et al (2002) reported that the correlations between L content and the particular contents of TS, F and P were negative and high. The majority of phenotypic correlations between RCT and the other parameters of the study were not significant.…”

Section: Resultsmentioning

confidence: 98%

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Effect of the stage of lactation on milk composition, its properties and the quality of rennet curdling in East Friesian ewes

Kuchtík¹,

Šustová²,

Urban³

et al. 2008

Czech J. Anim. Sci.

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The composition of sheep milk and its production per lactation are influenced by a large number of factors; however, the most important factors are breed, nutrition, health of the animals, environment and the number and stage of lactation. The effect of the stage of lactation on milk composition in different sheep breeds was studied by Jelínek et al. (1990), Maria and Gabina (1993) ABSTRACT:The evaluation of the effect of the stage of lactation on milk composition, its properties and the quality of rennet curdling was carried out over the period of three successive years using milk samples (n = 162) obtained from a total of 27 ewes of the East Friesian (EF) breed, reared on a small sheep farm in Juřinka in the region of Wallachia. The stage of lactation had a highly significant effect on the contents of all milk components. However, only the contents of total solids (TS), solids non-fat (SNF), fat (F), protein (P) and casein (CN) gradually increased with the advancement of lactation. The stage of lactation also had a highly significant effect both on all the properties of milk and the rennet curdling quality (RCQ). All phenotypic correlations between the particular contents of TS, SNF, F, P, CN and urea nitrogen (UN) were positive and high (P ≤ 0.001). On the other hand, all phenotypic correlations between milk yield and particular contents of TS, SNF, F, P, CN and UN were negative and high (P ≤ 0.001). The majority of phenotypic correlations between rennet clotting time (RCT) and the other particular parameters was insignificant. However, the phenotypic correlations between lactose (L) and RCT and between pH and RCT were positive and high (P ≤ 0.001) whereas the phenotypic correlation between titratable acidity (TA) and RCT was negative and high (P ≤ 0.001). The majority of phenotypic correlations between the rennet curdling quality (RCQ) and the other particular parameters was insignificant. Nevertheless, the phenotypic correlations between pH and RCQ and between RCT and RCQ were positive and high (P ≤ 0.001) whereas the phenotypic correlation between TA and RCQ was negative and high (P ≤ 0.001).

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Section: Resultssupporting

confidence: 91%

Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 98%

See 2 more Smart Citations

Effect of the stage of lactation on milk composition, its properties and the quality of rennet curdling in East Friesian ewes

Kuchtík¹,

Šustová²,

Urban³

et al. 2008

Czech J. Anim. Sci.

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“…Even though lamb meat is currently the main focus, there is great interest in dairy sheep, an area that needs research and development of production processes, especially due to the high added value of its products (Emediato, 2007). The high fat content (5.5 to 8.5 g of fat/100 g milk) of sheep milk gives a higher yield in cheese production compared to cow and goat milk, which has a positive impact on the industry and the producer, who may charge a differentiated price for this milk (Ochoa-Cordero et al, 2002).…”

Section: Introductionmentioning

confidence: 99%