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 best understand the aftereffect of new crossbreeding on the sexual precocity out of hybrid pets, this new AFC try assessed predicated on: hybrid kind of, competition off sire moms and dads (bull and you can inseminated local cattle), hybridization top and you will inventory facilities
The newest indicate years initially calving for everyone types come up with are ± months, symbolizing around 3 years (a couple of years 11 weeks 19 months ± 11 days day). Probably the most precocious heifers calved within 2 years ( months). To own 50% out of heifers, basic calving was at months. The first services happened on average at ± days ( so you’re able to weeks).
The brand new indicate AFC of your own crossbreeds are below those people said among Zebu within the tropics on over forty days said in many studies ( Rahman mais aussi al., 2016 ; Tellah ainsi que al., 2015a , 2015b ; Bashir and you will Este Zubeir, 2013 ; Sokouri et al., 2010 ; Bayemi mais aussi al., 2005 ). , 2015 ). Particular experts keeps said abilities very next to the observance towards different crossbreeds in the Africa, despite cow types included in brand new test: 34 months one of many Montbeliard crossbreeds into the Algeria ( Madani and Mouffok, 2008 ) and you can Morocco ( Srairi and you may Mousili, 2014 ), ± 0.43 weeks regarding Girolando crossbreed inside Benin ( Doko mais aussi al., 2012 ). It had been an equivalent into the Holstein-Friesian crossbreed cattle in Ethiopia at thirty six.4 ± step one.seven weeks, this new Borgou and you will Lagunaire breeds at thirty six.1 ± six.30 weeks into the Benin ( Adamou-Ndiaye mais aussi al., 2003 ) plus in new Azawak Zebu during the thirty-six.5 ± cuatro.10 and you may ± thirteen weeks in Niger ( Achard and Chanono, 2006 , 1997 ).
Our very own observance is greater than those reported because of the Genzebu ainsi que al. (2016) one of crossbreed cows inside the Kenya (twenty six.nine ± 5.4 and twenty-seven.0 ± 3.7 months). It had been some much better than the latest findings from the Ngodigha et al. (2009) of 30.seven ± 2.5 days among crossbreeds (Holstein x Bunadji) from inside the Nigeria, Ben Salem et al. (2009) away from 29.seven ± 4.1 year in Holstein inside Tunisia and you may Srairi and you may Mousili (2014) off 29 months when you look at the Montbeliard within the Morocco. Some type circumstances regarding the AFC was examined to attain the comments.
Among the different crossbreeding items understood ( Desk 1 ), brand new Fulani Zebu (FZ) inseminated which have semen from Montbeliard (MB x FZ) and you will Alps Brown (Ab x FZ) possess delivered many precocious corssbreeds (earliest calving at gratis sesso incontri greci the two years) (5%). Whenever you are, brand new inseminations away from Fulani Zebu cows to the sperm away from Holstein (HT x FZ) and you will out-of Tarentaise (T x FZ) then the insemination away from Gudali Zebu cows having semen out of Montbeliard (MB x GZ) has actually lead the newest precocious crossbreed cattle.
Minimal are weeks together with limit are months
Desk step 1: Decades at first calving (months) centered on crossbreeding type in dairy cattle facilities in your neighborhood off Bobo-Dioulasso into the Burkina Faso
The research focused on the fresh new breeding monitoring of twenty (20) hybrid cattle because of this new interbreeding through the artificial insemination between regional reproduce cows (Gudali Zebu and you can Fulani Zebu) and you can unique breed bulls (Holstein, Alps Brown, Tarentaise, Montbeliard). These crossbreeds was in fact produced between 1999 and you will 2010 and you can provided its earliest calf between 2002 and you will 2012 to the about three increased stock facilities inside metropolitan and you can residential district areas of Bobo-Dioulasso. Each of these facilities has from the 50 crossbreed cattle inside the creation. The original farm is found in an urban area, the following 10 Km away at southern area log off additionally the third 60 Km aside during the eastern log off from Bobo-Dioulasso. Preliminary studies between throughout these elements helped to select this type of about three facilities which have a livestock register (temperatures and you can phony insemination overseeing sheet sets). Occurrences connected with private monitoring of animal breeding such as calving times, times of your own basic heating and you will inseminations had been filed every day because of the this new cattlemen while the inseminators. New exploitation of those files managed to make it you are able to to decide twenty (20) basic calving’s add up to the first qualities. Such facilities are characterized by the presence of missing, a beneficial herd health overseeing, a led breeding form (mainly AI, to own lack of a specified bull), the fresh new focus provides (pure cotton cake or cottonseed and you may industrial malt) throughout the ration eating and you can rigorous shipment from silage and you can agricultural because of the situations. The sole function of it procedure type of is the design and deals out-of manually canned milk products, twice daily (early morning and you can evening). This new focuses is supported on dogs to their go back regarding grazing as well as in the newest early morning from the milking time.