This indicates one to crossbreed cows is sexually more precocious than simply tropical cattle ( Wassie ainsi que al
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 fresh suggest years initially calving for all breeds assembled was ± months, symbolizing around 36 months (24 months 11 days best Artist Sites dating apps 19 weeks ± eleven months a day). Minimal is actually days plus the restrict are days. The absolute most precocious heifers calved inside 24 months ( months). Having 50% of heifers, first calving was at months. The first characteristics happened normally on ± months ( so you’re able to weeks).
The latest imply AFC of crossbreeds was lower than those individuals said among Zebu under the tropics at more forty months reported in lot of degree ( Rahman et al., 2016 ; Tellah mais aussi al., 2015a , 2015b ; Bashir and Este Zubeir, 2013 ; Sokouri ainsi que al., 2010 ; Bayemi ainsi que al., 2005 ). , 2015 ). Some experts have said abilities really near to our observance on the various other crossbreeds for the Africa, notwithstanding cow types included in the try: 34 weeks one of several Montbeliard crossbreeds from inside the Algeria ( Madani and you may Mouffok, 2008 ) and Morocco ( Srairi and you can Mousili, 2014 ), ± 0.43 days about Girolando crossbreed in the Benin ( Doko mais aussi al., 2012 ). It had been the same on Holstein-Friesian crossbreed cows in Ethiopia at thirty six.4 ± 1.7 days, the new Borgou and you can Lagunaire breeds within thirty six.1 ± 6.29 days inside Benin ( Adamou-Ndiaye ainsi que al., 2003 ) along with this new Azawak Zebu on thirty six.5 ± 4.ten and you may ± 13 days during the Niger ( Achard and you will Chanono, 2006 , 1997 ).
All of our observance is actually higher than those people claimed because of the Genzebu mais aussi al. (2016) certainly one of crossbreed cattle in Kenya (twenty-six.nine ± 5.4 and you will 27.0 ± 3.eight months). It absolutely was a bit a lot better than the fresh observations from the Ngodigha mais aussi al. (2009) regarding 31.eight ± 2.5 days certainly one of crossbreeds (Holstein x Bunadji) into the Nigeria, Ben Salem mais aussi al. (2009) out of 29.seven ± 4.one year inside Holstein inside Tunisia and Srairi and you can Mousili (2014) regarding 31 weeks into the Montbeliard within the Morocco.
Among other crossbreeding versions understood ( Table step one ), this new Fulani Zebu (FZ) inseminated that have sperm regarding Montbeliard (MB x FZ) and you may Alps Brown (Abdominal x FZ) keeps produced the most precocious corssbreeds (basic calving from the two years) (5%). If you are, new inseminations out of Fulani Zebu cows on the semen out of Holstein (HT x FZ) and you will out of Tarentaise (T x FZ) then insemination of Gudali Zebu cows with semen of Montbeliard (MB x GZ) keeps lead the newest precocious crossbreed cows.
Certain type activities associated with the AFC was basically analyzed so you can reach the statements
Desk 1: Years in the beginning calving (months) predicated on crossbreeding type in dairy cattle facilities in the area out of Bobo-Dioulasso when you look at the Burkina Faso
To ideal understand the aftereffect of this new crossbreeding to the sexual precocity out-of hybrid pet, the AFC was analyzed predicated on: hybrid particular, battle off sire parents (bull and you may inseminated regional cattle), hybridization top and stock farms
The research focused on the brand new reproduction track of twenty (20) hybrid cattle through the interbreeding from the artificial insemination ranging from local breed cattle (Gudali Zebu and Fulani Zebu) and you will amazing breed bulls (Holstein, Alps Brownish, Tarentaise, Montbeliard). These types of crossbreeds had been born between 1999 and you can 2010 and you can gave their basic calf between 2002 and you can 2012 to your about three improved stock farms into the urban and residential district aspects of Bobo-Dioulasso. Each one of these farms provides on the fifty crossbreed cows into the design. The initial farm is situated in a city, next 10 Kilometres out on southern get-off therefore the third 60 Km out at eastern log off regarding Bobo-Dioulasso. Initial surveys ranging from during these portion aided to select this type of around three facilities which have a cattle check in (temperatures and you can fake insemination overseeing sheets). Situations about individual monitoring of creature breeding such as for example calving dates, dates of the first warms and you will inseminations had been submitted each and every day by the brand new cattlemen and also the inseminators. The fresh exploitation of them records caused it to be you can easily to decide twenty (20) first calving’s equal to the first properties. Such farms was described as the current presence of lost, good herd health monitoring, a guided breeding setting (mainly AI, having not enough a specified bull), this new focus provides (pure cotton cake or cottonseed and you can industrial malt) in the ration giving and you may extreme shipment out-of silage and you can agricultural of the points. The only purpose of it operation style of is the development and you may sale off yourself processed milk, twice a day (morning and evening). The latest centers is actually offered on dogs to their go back from grazing plus the newest early morning at the milking day.
