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.
The new mean decades at first calving for everyone types build is ± days, representing approximately 36 months (2 years 11 months 19 months ± eleven days twenty four hours). The minimum are days in addition to maximum are months. One particular precocious heifers calved within this 24 months ( months). Having 50% out-of heifers, very first calving is at weeks. The initial characteristics took place on average from the ± weeks ( so you’re able to months).
The fresh new imply AFC of crossbreeds was lower than those people claimed among the many Zebu underneath the tropics within more 40 weeks said in lot of training ( Rahman ainsi que al., 2016 ; Tellah et al., 2015a , 2015b ; Bashir and you can Este Zubeir, 2013 ; Sokouri ainsi que al., 2010 ; Bayemi et al., 2005 ). , 2015 ). Some authors has reported show most near to all of our observation for the more crossbreeds for the Africa, despite cow breeds included in the latest test: 34 weeks among the many Montbeliard crossbreeds within the Algeria ( Madani and you may Mouffok, 2008 ) and you can Morocco ( Srairi and you may Mousili, 2014 ), ± 0.43 days about Girolando hybrid in the Benin ( Doko ainsi que al., 2012 ). It was a similar towards the Holstein-Friesian crossbreed cows inside Ethiopia within thirty-six.4 ± step one.seven weeks, this new Borgou and you may Lagunaire types during the thirty-six.step one ± six.30 months inside the Benin ( Adamou-Ndiaye ainsi que al., 2003 ) plus in the latest Azawak Zebu within thirty-six.5 ± 4.10 and you will ± thirteen months when you look at the Niger ( Achard and you can Chanono, 2006 , 1997 ).
The observance is greater than those people claimed from the Genzebu et al. (2016) among crossbreed cattle in Kenya (26.9 ± 5.cuatro and you can 27.0 ± step 3.7 days). It had been quite much better than the new findings from the Ngodigha ainsi que al. (2009) from 31.7 ± dos.5 days one of crossbreeds (Holstein x Bunadji) for the Nigeria, Ben Salem et al. (2009) out-of 29.seven ± 4.one year into the Holstein inside the Tunisia and you may Srairi and Mousili (2014) out-of 31 months during the Montbeliard inside Morocco.
One of several more crossbreeding sizes understood ( Table 1 ), this new Fulani Zebu (FZ) inseminated which have sperm away from Montbeliard (MB x FZ) and you may Alps Brownish (Ab x FZ) features introduced one particular precocious corssbreeds (very first calving during the 2 years) (5%). Whenever you are, the fresh new inseminations regarding Fulani Zebu cows into semen out of Holstein (HT x FZ) and you can away from Tarentaise (T x FZ) then your insemination out of Gudali Zebu cows that have sperm regarding Montbeliard (MB x GZ) have produced this new precocious crossbreed cattle.
Specific variation factors of this AFC was in fact analyzed to help you attain the comments
Desk step 1: Ages initially calving (months) considering crossbreeding type in milk products cattle facilities in the area out of Bobo-Dioulasso in the Burkina Faso
So you’re able to greatest comprehend the effect of the newest crossbreeding to your intimate precocity of crossbreed animals, brand new AFC try reviewed according to: hybrid method of, competition off sire moms and dads (bull and you will inseminated local cows), hybridization level and you will stock facilities
The analysis focused on brand new reproduction track of twenty (20) crossbreed cattle as a consequence of new interbreeding from the phony insemination anywhere between want Buddhist dating site review regional reproduce cattle (Gudali Zebu and Fulani Zebu) and you can amazing breed bulls (Holstein, Alps Brownish, Tarentaise, Montbeliard). This type of crossbreeds had been born ranging from 1999 and you will 2010 and you can offered the very first calf between 2002 and you will 2012 with the around three enhanced stock facilities for the urban and you may suburban aspects of Bobo-Dioulasso. Each one of these facilities has regarding the fifty hybrid cattle for the development. The original ranch is located in a city, next 10 Kilometer aside during the southern area exit together with third 60 Kilometres aside at eastern exit out-of Bobo-Dioulasso. First studies anywhere between on these parts helped to choose these around three facilities having a livestock sign in (temperatures and you will fake insemination overseeing sheet sets). Incidents pertaining to individual tabs on animal reproduction such as calving dates, dates of the first heating and you may inseminations was registered every single day from the the newest cattlemen and the inseminators. The brand new exploitation of these data managed to get you are able to to determine twenty (20) very first calving’s corresponding to the initial qualities. Such facilities are characterized by the clear presence of destroyed, a herd wellness keeping track of, a guided breeding means (mainly AI, for lack of a designated bull), brand new focus provides (cotton fiber pie or cottonseed and you can commercial malt) from the ration serving and you may extreme delivery out of silage and you can farming because of the points. The only function of so it operation type of is the creation and you can marketing out of yourself canned milk, twice a day (morning and you can evening). The new concentrates are served on animals on the return off grazing and in the new early morning at milking big date.