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 best see the effectation of the crossbreeding towards the sexual precocity off hybrid pets, the newest AFC is analyzed considering: hybrid method of, battle out of sire parents (bull and you will inseminated regional cattle), hybridization height and you can inventory facilities
The latest imply years initially calving for all breeds make is actually ± months, symbolizing everything 3 years (couple of years 11 weeks 19 days ± 11 days day). The absolute most precocious heifers calved contained in this 2 years ( months). For fifty% out-of heifers, earliest calving was at weeks. The original qualities were held normally within ± days ( to help you months).
The fresh new indicate AFC of one’s crossbreeds was below men and women said one of several Zebu under the tropics during the more than 40 weeks stated in a lot of training ( Rahman mais aussi al., 2016 ; Tellah ainsi que al., 2015a , 2015b ; Bashir and you can El Zubeir, 2013 ; Sokouri mais aussi al., 2010 ; Bayemi ainsi que al., 2005 ). , 2015 ). Particular authors features claimed performance extremely next to the observance into some other crossbreeds in Africa, despite cow breeds found in new try out: 34 days among the many Montbeliard crossbreeds when you look at the Algeria ( Madani and you will Mouffok, 2008 ) and you will Morocco ( Srairi and you can Mousili, 2014 ), ± 0.43 days about Girolando crossbreed in the Benin ( Doko ainsi que al., 2012 ). It absolutely was an equivalent on Holstein-Friesian crossbreed cows in Ethiopia from the 36.4 ± 1.eight months, the fresh Borgou and you may Lagunaire types within 36.step one ± 6.31 months from inside the Benin ( Adamou-Ndiaye ainsi que al., 2003 ) as well as in new Azawak Zebu from the thirty-six.5 ± cuatro.ten and you may ± 13 months in Niger ( Achard and you will Chanono, 2006 , 1997 ).
All of our observance was more than those individuals advertised by Genzebu ainsi que al. (2016) one of hybrid cows within the Kenya (26.nine ± 5.4 and you can twenty-seven.0 ± step three.7 weeks). It was quite a lot better than this new observations of the Ngodigha et al. (2009) from 31.eight ± 2.5 months certainly crossbreeds (Holstein x Bunadji) in the Nigeria, Ben Salem ainsi que al. (2009) out of 30.seven ± 4.12 months from inside the Holstein when you look at the Tunisia and you may Srairi and you may Mousili (2014) from 29 days from inside the Montbeliard during the Morocco. Certain type situations with the AFC were analyzed so you’re able to reach the statements.
One of many various other crossbreeding products identified ( Dining table step one ), new Fulani Zebu (FZ) inseminated with sperm of Montbeliard (MB x FZ) and you may Alps Brownish (Ab x FZ) enjoys produced the most precocious corssbreeds (very first calving in the 2 yrs) (5%). While you are, the fresh new inseminations of Fulani Zebu cattle to your semen off Holstein (HT x FZ) and you can out-of Tarentaise (T x FZ) then your insemination off Gudali Zebu cows that have sperm out-of Montbeliard (MB x GZ) possess delivered brand new precocious hybrid cattle.
The minimum are months and limitation is days
Dining table step 1: Years to start with calving (months) predicated on crossbreeding input whole milk cows facilities in the area off Bobo-Dioulasso within the Burkina Faso
The analysis concerned about the newest reproduction monitoring of twenty (20) hybrid cows resulting from the brand new interbreeding sites d’échangistes gratuits through the artificial insemination anywhere between regional breed cows (Gudali Zebu and Fulani Zebu) and you may amazing breed bulls (Holstein, Alps Brown, Tarentaise, Montbeliard). These crossbreeds was in fact produced ranging from 1999 and you may 2010 and you may provided its very first calf ranging from 2002 and you can 2012 with the three enhanced inventory facilities in the metropolitan and you may residential district aspects of Bobo-Dioulasso. All these facilities have in the 50 crossbreed cattle during the development. The first farm is located in a city, the second 10 Kilometer away in the south log off as well as the 3rd 60 Km out during the east hop out regarding Bobo-Dioulasso. Preliminary studies anywhere between in these elements aided to select these three facilities having a cattle register (heat and you will phony insemination overseeing sheets). Events connected with private track of animal breeding including calving times, dates of your own very first warms and you will inseminations have been submitted every single day of the brand new cattlemen and inseminators. The new exploitation of these files made it you are able to to determine twenty (20) very first calving’s add up to the initial characteristics. These types of facilities are described as the current presence of forgotten, an effective herd fitness keeping track of, a guided reproduction form (mainly AI, having insufficient a specified bull), the focus provides (cotton fiber pie otherwise cottonseed and you will commercial malt) regarding the ration feeding and intensive shipment away from silage and you will agricultural of the things. Really the only aim of which operation style of ‘s the production and purchases regarding manually canned dairy, twice a day (day and you will evening). Brand new centers are offered into dogs on the go back off grazing along with the brand new morning at milking big date.
Recent Comments