Milk fat globule size, phospholipid contents and composition of milk from purebred and Alpine-crossbred Mid-Eastern goats under confinement or grazing condition

Nurit Argov-Argaman; Oren Hadaya; Tzach Glasser; Hussein Muklada; Levana Dvash; Ronit Mesilati-Stahy; Serge Yan Landau

doi:10.1016/j.idairyj.2015.12.003

Milk fat globule size, phospholipid contents and composition of milk from purebred and Alpine-crossbred Mid-Eastern goats under confinement or grazing condition

Nurit Argov-Argaman^*, Oren Hadaya, Tzach Glasser, Hussein Muklada, Levana Dvash, Ronit Mesilati-Stahy, Serge Yan Landau

^*Corresponding author for this work

Department of Animal Sciences

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

Milk fat globule (MFG) size and phospholipids (PL) content and composition were determined in milk collected at 65 (pretreatment), 110, 135 and 170 days of lactation from goats randomly assigned to grazing in Mediterranean brushland or fed clover hay indoors, in addition to concentrate. Daily feed intake and dietary contents of neutral detergent fibre and acid detergent fibre were higher in grazing goats, associated with milk richer in fat, with larger MFGs and 20% higher PL content. Smaller MFGs, produced by all confinement groups, was associated with 15 μg g^-1 fat higher milk PL content. The greatest effect was found in the Damascus goats, with over 44% higher PL concentration, on milk fat basis, in the confined compared with grazing group. Our understanding of how PL content is modulated by the interaction between genetic background and nutrition will enable to achieve either PL-rich milk or PL-enriched milk fat.

Original language	American English
Pages (from-to)	2-8
Number of pages	7
Journal	International Dairy Journal
Volume	58
DOIs	https://doi.org/10.1016/j.idairyj.2015.12.003
State	Published - 1 Jul 2016

Bibliographical note

Funding Information:
This publication was made possible in part by support from the Israeli Dairy Board (Sheep and Goat milk) under Cooperative Agreement No. 0390054 , and the Israeli Health Ministry Chief Scientist under Cooperative Agreement No. 0390054 . Sponsors had no role in study design, collection, analysis or interpretation of data, in writing or publication of data.

Publisher Copyright:
© 2016 Elsevier Ltd.

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10.1016/j.idairyj.2015.12.003

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title = "Milk fat globule size, phospholipid contents and composition of milk from purebred and Alpine-crossbred Mid-Eastern goats under confinement or grazing condition",

abstract = "Milk fat globule (MFG) size and phospholipids (PL) content and composition were determined in milk collected at 65 (pretreatment), 110, 135 and 170 days of lactation from goats randomly assigned to grazing in Mediterranean brushland or fed clover hay indoors, in addition to concentrate. Daily feed intake and dietary contents of neutral detergent fibre and acid detergent fibre were higher in grazing goats, associated with milk richer in fat, with larger MFGs and 20% higher PL content. Smaller MFGs, produced by all confinement groups, was associated with 15 μg g-1 fat higher milk PL content. The greatest effect was found in the Damascus goats, with over 44% higher PL concentration, on milk fat basis, in the confined compared with grazing group. Our understanding of how PL content is modulated by the interaction between genetic background and nutrition will enable to achieve either PL-rich milk or PL-enriched milk fat.",

author = "Nurit Argov-Argaman and Oren Hadaya and Tzach Glasser and Hussein Muklada and Levana Dvash and Ronit Mesilati-Stahy and Landau, {Serge Yan}",

note = "Funding Information: This publication was made possible in part by support from the Israeli Dairy Board (Sheep and Goat milk) under Cooperative Agreement No. 0390054 , and the Israeli Health Ministry Chief Scientist under Cooperative Agreement No. 0390054 . Sponsors had no role in study design, collection, analysis or interpretation of data, in writing or publication of data. Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd.",

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AU - Argov-Argaman, Nurit

AU - Hadaya, Oren

AU - Glasser, Tzach

AU - Muklada, Hussein

AU - Dvash, Levana

AU - Mesilati-Stahy, Ronit

AU - Landau, Serge Yan

N1 - Funding Information: This publication was made possible in part by support from the Israeli Dairy Board (Sheep and Goat milk) under Cooperative Agreement No. 0390054 , and the Israeli Health Ministry Chief Scientist under Cooperative Agreement No. 0390054 . Sponsors had no role in study design, collection, analysis or interpretation of data, in writing or publication of data. Publisher Copyright: © 2016 Elsevier Ltd.

PY - 2016/7/1

Y1 - 2016/7/1

N2 - Milk fat globule (MFG) size and phospholipids (PL) content and composition were determined in milk collected at 65 (pretreatment), 110, 135 and 170 days of lactation from goats randomly assigned to grazing in Mediterranean brushland or fed clover hay indoors, in addition to concentrate. Daily feed intake and dietary contents of neutral detergent fibre and acid detergent fibre were higher in grazing goats, associated with milk richer in fat, with larger MFGs and 20% higher PL content. Smaller MFGs, produced by all confinement groups, was associated with 15 μg g-1 fat higher milk PL content. The greatest effect was found in the Damascus goats, with over 44% higher PL concentration, on milk fat basis, in the confined compared with grazing group. Our understanding of how PL content is modulated by the interaction between genetic background and nutrition will enable to achieve either PL-rich milk or PL-enriched milk fat.

AB - Milk fat globule (MFG) size and phospholipids (PL) content and composition were determined in milk collected at 65 (pretreatment), 110, 135 and 170 days of lactation from goats randomly assigned to grazing in Mediterranean brushland or fed clover hay indoors, in addition to concentrate. Daily feed intake and dietary contents of neutral detergent fibre and acid detergent fibre were higher in grazing goats, associated with milk richer in fat, with larger MFGs and 20% higher PL content. Smaller MFGs, produced by all confinement groups, was associated with 15 μg g-1 fat higher milk PL content. The greatest effect was found in the Damascus goats, with over 44% higher PL concentration, on milk fat basis, in the confined compared with grazing group. Our understanding of how PL content is modulated by the interaction between genetic background and nutrition will enable to achieve either PL-rich milk or PL-enriched milk fat.

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Milk fat globule size, phospholipid contents and composition of milk from purebred and Alpine-crossbred Mid-Eastern goats under confinement or grazing condition

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