Body Weight Change, Milk Production and Reproductive Parameters in Suckled vs. Non-suckled Awassi Ewes

Autor:	S. A. Omer, M.A. Abu Ishmais, Rami T. Kridli
Rok vydání:	2004
Předmět:	Estrous cycle media_common.quotation_subject Domestic sheep reproduction Biology Milk production Body weight Milking Awassi Animal science Animal Science and Zoology Reproduction Completely randomized design Food Science media_common
Zdroj:	Asian-Australasian Journal of Animal Sciences. 17:1236-1240
ISSN:	1976-5517 1011-2367 1236-1240
DOI:	10.5713/ajas.2004.1236
Popis:	The objective of this study was to identify the effect of early weaning on body weight change, milk production and the return to estrus in Awassi ewes. Twenty multiparous winter-lambing Awassi ewes were randomly assigned to either suckled (S, n=10) or non-suckled (NS, n=10) groups in a completely randomized design. Lambs in the NS group were removed from their dams on day 2 postpartum (PP). Animal body weights (BW) and body condition scores (BCS) were recorded at the beginning of the study and every 3 weeks thereafter until the end of the experiment. Milk production was estimated by machine milking at weekly intervals for 4 weeks beginning on d 11 PP. Blood samples were collected from each ewe every third day for 4 weeks beginning on day 15 PP. Initial body weight was similar for both treatments. By the end of the experiment, NS ewes gained an average of 1.8±1.0 kg while S ewes lost an average of 7.0±1.0 kg (p
Databáze:	OpenAIRE
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