Milk yield and composition as affected by nutritional manipulations
Other Title(s)
إنتاج اللبن و تركيبه و تأثره بالتعديلات الغذائية
Joint Authors
Naqqadi, Samir Atiyyah
Baaqil, Hani Muhammad
al-Wakil, Iman Ali
Source
Journal of King Abdul Aziz University : Meteorology, Environment and Arid land Agriculture Sciences
Issue
Vol. 27, Issue 1 (31 Dec. 2017), pp.67-79, 13 p.
Publisher
King Abdulaziz University Scientific Publishing Center
Publication Date
2017-12-31
Country of Publication
Saudi Arabia
No. of Pages
13
Main Subjects
Abstract EN
The objective was to evaluate milk yield, milk composition and milk fatty acids contents of lactating Harri ewes (n=24) receiving different concentrate to roughage (A 80:20; B 60:40; C 40:60 and D 20:80 C:R) rations.
The results revealed that no differences (P = 0.29) in body weights of ewes were detected after parturition but body weights declined steadily as ewes continued on lactation.
Group D produced more (P < 0.01) milk (1.38±0.5 kg/day) than groups A (0.76±0.5 kg/day), B (0.88±0.5 kg/day) and C (0.66±0.5 kg/day).
Yields of milk fat, SNF, protein, lactose and minerals yields (g/day) were greater (P = 0.01) in group D than groups B and C not group A.
No differences were found in milk fat, SNF, protein, lactose and minerals percentages (%).
Groups D and A had more (P = 0.06) C18:2c (3.15±0.21 and 2.99±0.08 g/100g fat) than group B (1.98±0.54 g/100g fat) not group C (2.72±0.05 g/100g fat).
Poly unsaturated fatty acids (PUFA) were increased (P<0.01) in groups A and D (4.07±0.18 and 4.49±0.27 g/100g fat) than groups B and C (3.34±0.12 and 3.41±0.23 g/100g fat).
Lactating ewes' diet should include adequate ratio of roughage to increase milk yield and improve milk fat composition of unsaturated fatty acids.
American Psychological Association (APA)
Naqqadi, Samir Atiyyah& Baaqil, Hani Muhammad& al-Wakil, Iman Ali. 2017. Milk yield and composition as affected by nutritional manipulations. Journal of King Abdul Aziz University : Meteorology, Environment and Arid land Agriculture Sciences،Vol. 27, no. 1, pp.67-79.
https://search.emarefa.net/detail/BIM-926699
Modern Language Association (MLA)
Naqqadi, Samir Atiyyah…[et al.]. Milk yield and composition as affected by nutritional manipulations. Journal of King Abdul Aziz University : Meteorology, Environment and Arid land Agriculture Sciences Vol. 27, no. 1 (2017), pp.67-79.
https://search.emarefa.net/detail/BIM-926699
American Medical Association (AMA)
Naqqadi, Samir Atiyyah& Baaqil, Hani Muhammad& al-Wakil, Iman Ali. Milk yield and composition as affected by nutritional manipulations. Journal of King Abdul Aziz University : Meteorology, Environment and Arid land Agriculture Sciences. 2017. Vol. 27, no. 1, pp.67-79.
https://search.emarefa.net/detail/BIM-926699
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 77-78
Record ID
BIM-926699