Data extracted from the analysis of herd records were entered in Excel. The descriptive statistical analysis of the age at first calving (calculation of frequencies, means, standard deviations, minimum and maximum) was made with the XLSTAT software (6.1.9 release). These parameters were analyzed by ANOVA and the results were compared using the Newman-Keuls test. Differences were considered significant for p < 0.05.
To help you greatest comprehend the aftereffect of the brand new crossbreeding towards the intimate precocity off hybrid pet, the fresh AFC is actually examined centered on: hybrid style of, battle away from sire mothers (bull and you can inseminated regional cows), hybridization top and you will inventory facilities
The fresh imply ages initially calving for everyone breeds developed try ± weeks, symbolizing as much as 36 months (two years 11 months 19 weeks ± eleven days twenty four hours). The quintessential precocious heifers calved within a couple of years ( months). To possess fifty% off heifers, very first calving is at months. The first services occurred normally on ± months ( in order to weeks).
The new mean AFC of your own crossbreeds is actually less than people advertised one of many Zebu beneath the tropics from the more than forty months advertised a number of degree ( Rahman et al., 2016 ; Tellah ainsi que al., 2015a , 2015b ; Bashir and you will El Zubeir, 2013 ; Sokouri et al., 2010 ; Bayemi et al., 2005 ). , 2015 ). Continue reading “This proves you to crossbreed cows are intimately way more precocious than exotic cattle ( Wassie ainsi que al”