This shows you to definitely crossbreed cattle was sexually alot more precocious than simply tropical cattle ( Wassie et al

So you can ideal understand the effectation of new crossbreeding into the intimate precocity away from hybrid dogs, the brand new AFC are analyzed based on: crossbreed method of, competition out-of sire mothers (bull and you will inseminated regional cattle), hybridization peak and stock facilities

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.

This new imply age initially calving for everybody breeds make was ± days, symbolizing everything 3 years (couple of years 11 days 19 weeks ± eleven months 24 hours). Minimal try months and also the limitation is actually months. For fifty% out-of heifers, very first calving was at months. The first features were held an average of during the ± days ( so you’re able to days).

The latest suggest AFC of your crossbreeds is lower than those said one of the Zebu in tropics in the more than forty days stated in many training ( Rahman mais aussi al., 2016 ; Tellah mais aussi al., 2015a , 2015b ; Bashir and you can Este Zubeir, 2013 ; Sokouri et al., 2010 ; Bayemi ainsi que al., 2005 ). , 2015 ). Some experts have said overall performance extremely next to all of our observance to your different crossbreeds inside Africa, in spite of cow breeds utilized in the new try out: 34 weeks one of the Montbeliard crossbreeds inside the Algeria ( Madani and you may Mouffok, 2008 ) and Morocco ( Srairi and Mousili, 2014 ), ± 0.43 months regarding Girolando hybrid when you look at the Benin ( Doko mais aussi al., 2012 ). It absolutely was an equivalent on Holstein-Friesian crossbreed cattle for the Ethiopia from the thirty-six.4 ± 1.eight days, brand new Borgou and Lagunaire types at the thirty six.step one ± six.31 days inside Benin ( Adamou-Ndiaye mais aussi al., 2003 ) plus in the new Azawak Zebu within thirty-six.5 ± cuatro.10 and ± thirteen weeks for the Niger ( Achard and you may Chanono, 2006 , 1997 ).

Our observance try higher than the individuals stated of the Genzebu ainsi que al. (2016) certainly one of hybrid cows inside the Kenya (twenty six.nine ± 5.cuatro and 27.0 ± step 3.eight weeks). It absolutely was a little much better than brand new findings by the Ngodigha et al. (2009) out of 31.eight ± dos.5 months certainly one of crossbreeds (Holstein x Bunadji) during the Nigeria, Ben Salem ainsi que al. (2009) out-of 29.seven ± 4.1 year from inside the Holstein within the Tunisia and Srairi and you can Mousili (2014) off 31 months from inside the Montbeliard when you look at the Morocco. Some variation facts of AFC was assessed so you’re able to achieve the comments.

One of the various other crossbreeding types understood ( Dining table 1 ), the newest Fulani Zebu (FZ) inseminated having semen regarding Montbeliard (MB x FZ) and you may Alps Brownish (Ab x FZ) features produced the essential precocious corssbreeds (very first calving during the a couple of years) (5%). While you are, the newest inseminations out-of Fulani Zebu cattle to your sperm out of Holstein (HT x FZ) and you can of Tarentaise (T x FZ) then the insemination regarding Gudali Zebu cattle having semen out of Montbeliard (MB x GZ) has brought new precocious hybrid cows.

Probably the most precocious heifers calved contained in this 2 years ( months)

Dining table 1: Years in the beginning calving (months) considering crossbreeding enter in milk cattle farms in the region of Bobo-Dioulasso into the Burkina Faso

The study worried about the new reproduction tabs on twenty (20) crossbreed cattle resulting from this new interbreeding from the fake insemination ranging from regional breed cows (Gudali Zebu and you will Fulani Zebu) and exotic breed bulls (Holstein, Alps Brownish, Tarentaise, Montbeliard). These crossbreeds was born ranging from 1999 and you can 2010 and you may offered the very first calf between 2002 and you may 2012 for the around three improved inventory facilities in the metropolitan and you will suburban regions of Bobo-Dioulasso. Each of these farms possess regarding the fifty hybrid cows when you look at the development. The first farm is located in a city, the following 10 Km away within south get off additionally the 3rd 60 Kilometer away from the east log off of Bobo-Dioulasso. First surveys ranging from on these components helped to pick these types of around three facilities which have a cattle register (heat and you may artificial insemination monitoring sheet sets). Situations about private track of creature breeding including calving schedules, schedules of your very first https://datingranking.net/local-hookup/tampa/ heating and you can inseminations was in fact registered each day because of the new cattlemen together with inseminators. The newest exploitation ones files caused it to be it is possible to to choose twenty (20) basic calving’s comparable to the first qualities. These types of facilities try described as the existence of destroyed, good herd wellness overseeing, a led breeding setting (generally AI, to possess insufficient a designated bull), the new concentrate supplies (pure cotton pie or cottonseed and industrial malt) throughout the ration eating and you may intense shipping out-of silage and you will farming by things. The only real intent behind which procedure sorts of ‘s the creation and purchases out-of manually processed milk products, twice daily (early morning and you will nights). The new centers was offered to the animals on the return out of grazing and in the fresh new morning during the milking time.