TITLE:
Effects of protein and mineral supplementation on the performance of lactating dairy cows gobra and crossbreed guzerat during the dry season in senegal
AUTHORS:
Fat Cheikh Ndione, Emile Codjo Agbangba, Ousmane Ndiaye, Idrissa Sane, Abdou Diouf, Amadou Tamsir Diop
KEYWORDS:
Milk Yield; Supplements; Gobra; Guzerat; Dry Season
JOURNAL NAME:
Open Journal of Animal Sciences,
Vol.4 No.1,
January
6,
2014
ABSTRACT: The
purpose of this study carried out in the township of Dahra was to access the
effect of dry season protein and mineral supplementation of Gobra and
Crossbreed Guzerat cows on milk production. The experimental design is a completely
randomized block. The treatments were: supplement of molasse-urea blocks with
supplement of hay; supplement of molasse-urea blocks without any hay; no
supplement of molasse-urea blocks and supplement of hay; no supplement of
molasse-urea block without any hay. For each breed, the treatments were replicated
three times on a lot of cows with the similar zootechnic parameters. A total of
twelve lactating cows per breed were then used. The supplement of block + hay
has significantly (p Gobra*Guzerat. The
increases in production compared to the control treatment (without supplement)
are 52.63% and 100% respectively in the breed Gobra and Gobra*Guzerat. The supplement
of hay comes in the second place and contributes to an additional production of
66.66% in both breeds of cow. Then, the supplement of block follows and it
allows increasing the production of 44.44% and 50% respectively in Gobra and
Crossbreed. In both races, the supplement of block + hay has allowed obtaining
the highest profits of $1.6/L/day/cow for Gobra and $ 2.8/L/day/cow for the
Crossbreed, that equals to an increase by $ 0.3 and $ 0.9 compared to the
control treatment. The supplement of hay and the block supplement have respectively
given a profit of 0.4 and $ 0.3/L/day/cow in Gobra and 0.6 and $ 0.4/L/day/cow in the Crossbreed. The
adoption of supplementation molasse-urea block + hay by producers appears an alternative
to boost milk production in dry season.