Thursday, 16 September 2021

Development of New Indicator Traits for Selection for High Milk Yield of Indigenous Dual-Purpose Cows in Hot-Humid Environment, Ghana | Chapter 6 | New Visions in Biological Science Vol. 2

There are little records on the relationship between milk yield and morphological features in dual-purpose cows, particularly portions distal to the knee/hock joints (fore/hind shank length and circumference). This makes selecting these features for their milk output potential difficult. The goal of this study was to evaluate the association between average milk yield (AvMY) and morphological characteristics (MT) in dual-purpose cows in the hot-humid Ashanti Region of Ghana, and to find the best MT predictor of average milk yield. From April 2015 to July 2017, 384 cows were purposefully selected in 20 farms to measure the connection between AvMY and MT. Head length, horn length, horn tip spacing, and muzzle circumference phenotypic correlations between AvMY and MT were low (0.14 to 0.24), while heart girth, ear length, tail length, and pelvis width phenotypic correlations were medium (0.14 to 0.24). (0.34 to 0.46). AvMY, body length, body height at withers, height at rump, hock circumference, and fore/hind-shank length and circumference all showed strong associations (0.50 to 0.84). The hind-shank circumference was the most accurate predictor of AvMY, followed by the fore-shank circumference, hind-shank length, fore-shank length, and hock circumference in that order. It was discovered that there was a link between AvMY and MT. When selecting for improved AvMY potential, breeders and producers should examine fore- and hind-shank circumference and length.


Author (S) Details

I. Coffie
Department of Animal Science Education, Faculty of Agriculture Education, University of Education, Winneba, P.O. Box 40, Mampong-Ashanti, Ghana.

S. Y. Annor
Department of Animal Science Education, Faculty of Agriculture Education, University of Education, Winneba, P.O. Box 40, Mampong-Ashanti, Ghana.

J. K. Kagya-Agyemang
Department of Animal Science Education, Faculty of Agriculture Education, University of Education, Winneba, P.O. Box 40, Mampong-Ashanti, Ghana.

A. Annan-Prah
Department of Animal Science, University of Cape Coast, University Post Office, Cape Coast, Ghana.

S. Y. Annor
Department of Animal Science Education, Faculty of Agriculture Education, University of Education, Winneba, P.O. Box 40, Mampong-Ashanti, Ghana.


View Book https://stm.bookpi.org/NVBS-V2/article/view/3712


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