This shows you to definitely hybrid cows are sexually much more precocious than simply exotic cows ( Wassie mais aussi 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.

To help you greatest see the aftereffect of this new crossbreeding into the intimate precocity out-of crossbreed pet, the fresh AFC try analyzed based on: crossbreed type, battle away from sire moms and dads (bull and inseminated local cattle), hybridization top and you will stock farms

The latest imply decades to start with calving for everyone breeds build was ± months, representing whenever 36 months (2 years eleven months 19 weeks ± 11 days 1 day). The absolute most precocious heifers calved within this two years ( months). For 50% from heifers, first calving was at days reseñas de sitios de citas friki. The first attributes were held on average at the ± months ( so you’re able to days).

The fresh new mean AFC of the crossbreeds is lower than those people stated one of many Zebu beneath the tropics from the more than 40 weeks stated in lots of degree ( Rahman mais aussi al., 2016 ; Tellah mais aussi al., 2015a , 2015b ; Bashir and Este Zubeir, 2013 ; Sokouri mais aussi al., 2010 ; Bayemi ainsi que al., 2005 ). , 2015 ). Specific authors features advertised performance most next to all of our observation towards additional crossbreeds into the Africa, notwithstanding cow types utilized in new check out: 34 weeks one of many Montbeliard crossbreeds into the Algeria ( Madani and you can Mouffok, 2008 ) and Morocco ( Srairi and you may Mousili, 2014 ), ± 0.43 days regarding Girolando hybrid during the Benin ( Doko ainsi que al., 2012 ). It absolutely was the same towards Holstein-Friesian hybrid cattle in Ethiopia during the thirty six.4 ± step one.seven days, the newest Borgou and Lagunaire types on thirty six.step one ± six.31 months into the Benin ( Adamou-Ndiaye ainsi que al., 2003 ) and also in the Azawak Zebu within thirty-six.5 ± 4.ten and you may ± 13 days during the Niger ( Achard and you will Chanono, 2006 , 1997 ).

Our very own observance was higher than those claimed by the Genzebu et al. (2016) certainly hybrid cows from inside the Kenya (26.9 ± 5.4 and you may 27.0 ± step 3.7 days). It had been quite a lot better than new observations by Ngodigha et al. (2009) regarding 31.seven ± dos.5 weeks certainly one of crossbreeds (Holstein x Bunadji) in the Nigeria, Ben Salem ainsi que al. (2009) out of 31.seven ± cuatro.12 months into the Holstein during the Tunisia and Srairi and you will Mousili (2014) off 30 weeks inside the Montbeliard into the Morocco. Some type activities of AFC was in fact assessed so you’re able to reach the statements.

One of several some other crossbreeding models known ( Table 1 ), brand new Fulani Zebu (FZ) inseminated having semen away from Montbeliard (MB x FZ) and you will Alps Brown (Abdominal x FZ) have put the quintessential precocious corssbreeds (basic calving at the 2 yrs) (5%). While, the new inseminations away from Fulani Zebu cows on sperm out-of Holstein (HT x FZ) and you can away from Tarentaise (T x FZ) then insemination of Gudali Zebu cows having sperm regarding Montbeliard (MB x GZ) possess put the latest precocious crossbreed cows.

The minimum try days while the maximum was days

Table step one: Years in the beginning calving (months) predicated on crossbreeding input milk products cows farms in the area out-of Bobo-Dioulasso within the Burkina Faso

The study concerned about the latest reproduction monitoring of twenty (20) hybrid cows because of this new interbreeding from artificial insemination anywhere between regional breed cattle (Gudali Zebu and you can Fulani Zebu) and you can exotic reproduce bulls (Holstein, Alps Brown, Tarentaise, Montbeliard). Such crossbreeds had been produced ranging from 1999 and you will 2010 and you can provided their first calf ranging from 2002 and you may 2012 into three increased stock facilities during the metropolitan and you may suburban aspects of Bobo-Dioulasso. All these farms has on fifty hybrid cows in development. The initial farm is located in a city, the next ten Kilometer aside in the southern area hop out while the 3rd sixty Km away at the eastern exit from Bobo-Dioulasso. Original surveys between within these elements assisted to select this type of three farms having a cattle register (temperatures and you will artificial insemination overseeing sheets). Occurrences related to individual tabs on animal reproduction such as calving dates, dates of one’s basic heating and you can inseminations have been filed each day of the the newest cattlemen as well as the inseminators. This new exploitation ones documents managed to get it is possible to to choose twenty (20) first calving’s corresponding to the original attributes. These types of farms try described as the existence of missing, a good herd fitness monitoring, a guided reproduction function (primarily AI, to possess not enough a designated bull), the newest focus provides (cotton pie otherwise cottonseed and you can industrial malt) about ration feeding and rigorous shipments off silage and you may farming by the situations. Really the only aim of it operation types of is the creation and you may marketing regarding manually canned milk, twice a day (day and you will nights). The concentrates was served on dogs to their come back away from grazing and also in the newest day at milking time.