Milk composition in Damascus, Mamber and F1 Alpine crossbred goats under grazing or confinement management

•The study presents the effect of diet and breed on milk composition of dairy goats.•Grazing goats produced milk with higher protein and lower urea content.•Goats in pasture produced milk with 20% higher omega 3 content.•A favorable ratio between Ω6/Ω3 FA was achieved by Damascus pasture goats. The...

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Bibliographic Details
Published in:Small ruminant research 2017-08, Vol.153, p.31-40
Main Authors: Hadaya, Oren, Landau, Serge Yan, Glasser, Tzach, Muklada, Hussein, Dvash, Levana, Mesilati-Stahy, Ronit, Argov-Argaman, Nurit
Format: Article
Language:English
Subjects:
Caprine
Dairy
Fatty acids
Pasture
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Summary:•The study presents the effect of diet and breed on milk composition of dairy goats.•Grazing goats produced milk with higher protein and lower urea content.•Goats in pasture produced milk with 20% higher omega 3 content.•A favorable ratio between Ω6/Ω3 FA was achieved by Damascus pasture goats. The interactive effect of breed and feeding management on milk composition was established in local goats (Damascus, Mamber) and their F1 Alpine crossbreeds, half of which grazed daily for 4h in Mediterranean brushland (Pasture – P) and half were fed clover hay (Hay – H) indoors, in addition to concentrate fed individually. Milk composition and fatty acid profile were measured, and individual nutritional composition was estimated by fecal NIRS; DM intake was calculated from the proportion of dietary concentrate. Milk and feces were collected at 65 (pretreatment), 110, 135 and 170 days of lactation. DM intake was lower in the H vs. P group (P
ISSN:0921-4488
1879-0941
DOI:10.1016/j.smallrumres.2017.04.002