Artículos de revistas
Milk yield and composition of crossbred Sahelian × Anglo-Nubian goats in the semi-intensive system in Mali during the preweaning period
Author
Sanogo, Souleymane
Momani Shaker, Mohamed
Nantoumé, Hamidou
Salem, A.Z.M.
Institutions
Abstract
The aim of this study was to evaluate milk yield
and its composition during the preweaning period for Sahelian
goats (SG) and Anglo-Nubian (AN) crossbred depending
on some factors. The experiments were conducted from
January to December 2008 for 44 suckled and hand-milked
does, randomized, and divided into two equal groups: SG
(n022) and F1 Anglo-Nubian × Sahelian goats (1/2AN; n0
22). The does and their offsprings were kept in a pen where
they stayed indoors for 45 days before they were allowed
outdoors when the weather was suitable. Each category
received supplemental feeds depending on the season (rainy
season, dry cold season, and dry hot season). The average
daily milk yield was recorded weekly from parturition to
100 days of age. Individual milk samples were taken for
chemical analysis in connection with the yield measurements
twice per month from the fourth week of lactation
throughout the different seasons (rainy, cold dry, and hot
dry). The daily milk yield differed between breed types (P0
0.001) during the preweaning, while the effect of kids' sex
on daily milk production was not significant. Litter size
affected milk yield up to day 60 (P00.032) where does with
twins producing more milk than those with single kid.
However, at day 100, both groups had similar (P00.001)
milk production. Total milk yield at weaning increased by
103 % in 1/2AN over SG. The highest concentration of total
solids of milk was (12.76 %) recorded in the hot dry season.
The results of this study indicate that crossbreeding native
Sahelian goats with high potential Anglo-Nubian buck improved
milk production and its composition.