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.
Brand new indicate age in the beginning calving for everyone types come up with try ± days, representing everything three years (couple of years eleven months 19 months ± eleven days 1 day). Minimal are weeks and also the maximum was days. One particular precocious heifers calved within this couple of years ( months). Having 50% out of heifers, basic calving is at months. The first services took place typically from the ± days ( to months).
The latest indicate AFC of your own crossbreeds are below people stated among Zebu in tropics in the more 40 days advertised in many degree ( Rahman mais aussi al., 2016 ; Tellah et al., 2015a , 2015b ; Bashir and you will El Zubeir, 2013 ; Sokouri et al., 2010 ; Bayemi et al., 2005 ). , 2015 ). Some people has actually reported abilities very near to our observance on various other crossbreeds into the Africa, regardless of cow breeds used in brand new try: 34 months one of the Montbeliard crossbreeds into the Algeria ( Madani and you can Mouffok, 2008 ) and Morocco ( Srairi and you can Mousili, 2014 ), ± 0.43 weeks on Girolando hybrid inside Benin ( Doko mais aussi al., 2012 ). It was a similar to your Holstein-Friesian hybrid cows inside the Ethiopia at the thirty-six.4 ± step 1.seven months, the new Borgou and you may Lagunaire types on 36.1 ± 6.30 months in Benin ( Adamou-Ndiaye mais aussi al., 2003 ) plus in the Azawak Zebu in the thirty six.5 ± 4.ten and ± 13 months from inside the Niger ( Achard and you will Chanono, 2006 , 1997 ).
Our observation try greater than those individuals said by the Genzebu ainsi que al. (2016) one of crossbreed cows in Kenya (twenty-six.nine ± 5.cuatro and you can twenty seven.0 ± 3.eight weeks). It actually was slightly much better than the fresh observations because of the Ngodigha ainsi que al. (2009) out of 30.eight ± 2.5 months among crossbreeds (Holstein x Bunadji) in Nigeria, Ben Salem mais aussi al. (2009) from 29.7 ± 4.one year in the Holstein into the Tunisia and you will Srairi and Mousili (2014) off 30 months into the Montbeliard into the Morocco.
One of the various other crossbreeding versions identified ( Desk step one ), this new Fulani Zebu (FZ) inseminated having sperm out-of Montbeliard (MB x FZ) and you can Alps Brownish (Abdominal x FZ) possess introduced one particular precocious corssbreeds (basic calving in the two years) (5%). When you are, brand new inseminations regarding Fulani Zebu cattle for the sperm from Holstein (HT x FZ) and you can out-of Tarentaise (T x FZ) then your insemination off Gudali Zebu cows with sperm away from Montbeliard (MB x GZ) has actually delivered this new precocious crossbreed cattle.
Certain type items for the AFC was basically examined to achieve the statements
Table step one: Ages at first calving (months) considering crossbreeding type in milk products cows facilities in the area away from Bobo-Dioulasso inside Burkina Faso
In order to top see the aftereffect of this new crossbreeding into the sexual precocity of crossbreed pet, brand new AFC was analyzed based on: hybrid variety of, battle out-of sire mothers (bull and inseminated regional cattle), hybridization top and you can inventory farms
The study concerned about the latest reproduction tabs on twenty (20) hybrid cattle due to the fresh new interbreeding from the artificial insemination between regional breed cows (Gudali Zebu and you may Fulani Zebu) and you can unique breed bulls (Holstein, Alps Brown, Tarentaise, Montbeliard). This type of crossbreeds was created anywhere between 1999 and you may 2010 and offered their very first calf between 2002 and you can 2012 on the around three increased stock facilities when you look at the urban and you will residential district regions of Bobo-Dioulasso. Each one of these facilities features about fifty crossbreed cattle for the production. The first ranch is situated in a city, another 10 Km out on southern get-off together with 3rd sixty Kilometres out on eastern get-off regarding Bobo-Dioulasso. Original studies anywhere between on these section helped to select such about three farms that have a livestock register (heat and artificial insemination overseeing sheet sets). Events regarding personal tabs on creature reproduction particularly calving times, dates of very first heating and you can inseminations were recorded day-after-day of the the cattlemen as well as the inseminators. Brand new exploitation of those data made it you can to determine https://datingranking.net/dating-in-your-30s/ twenty (20) very first calving’s comparable to the original properties. These types of facilities is actually characterized by the clear presence of destroyed, a herd wellness monitoring, a led breeding function (generally AI, getting decreased a specified bull), this new focus supplies (cotton pie otherwise cottonseed and commercial malt) regarding the ration giving and you may extreme delivery out-of silage and farming from the facts. Truly the only purpose of this operation types of ‘s the design and you will income away from yourself processed milk products, twice daily (morning and you will nights). The new centers was supported into pet to their come back out-of grazing and in the newest early morning from the milking go out.