This proves you to crossbreed cows are intimately way more precocious than exotic 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.

To help you greatest comprehend the aftereffect of the brand new crossbreeding towards the intimate precocity off hybrid pet, the fresh AFC is actually examined centered on: hybrid style of, battle away from sire mothers (bull and you can inseminated regional cows), hybridization top and you will inventory facilities

The fresh imply ages initially calving for everyone breeds developed try ± weeks, symbolizing as much as 36 months (two years 11 months 19 weeks ± eleven days twenty four hours). The quintessential precocious heifers calved within a couple of years ( months). To possess fifty% off heifers, very first calving is at months. The first services occurred normally on ± months ( in order to weeks).

The new mean AFC of your own crossbreeds is actually less than people advertised one of many Zebu beneath the tropics from the more than forty months advertised a number of degree ( Rahman et al., 2016 ; Tellah ainsi que al., 2015a , 2015b ; Bashir and you will El Zubeir, 2013 ; Sokouri et al., 2010 ; Bayemi et al., 2005 ). , 2015 ). Some article writers have claimed abilities extremely near to our very own observance with the additional crossbreeds inside Africa, despite cow breeds used in the new test: 34 months one of many Montbeliard crossbreeds into the Algeria ( Madani and you can Mouffok, 2008 ) and siti incontri per introversi you will Morocco ( Srairi and Mousili, 2014 ), ± 0.43 days on the Girolando hybrid for the Benin ( Doko et al., 2012 ). It was a similar on the Holstein-Friesian crossbreed cattle into the Ethiopia in the thirty six.4 ± step 1.seven weeks, this new Borgou and you may Lagunaire types within 36.step 1 ± 6.31 months in the Benin ( Adamou-Ndiaye mais aussi al., 2003 ) along with the newest Azawak Zebu at thirty six.5 ± cuatro.10 and you may ± 13 days in the Niger ( Achard and Chanono, 2006 , 1997 ).

All of our observance is actually more than the individuals stated of the Genzebu et al. (2016) one of hybrid cattle for the Kenya (twenty six.9 ± 5.4 and you can twenty seven.0 ± 3.7 days). It absolutely was a little much better than the latest observations by the Ngodigha mais aussi al. (2009) regarding 30.seven ± dos.5 weeks one of crossbreeds (Holstein x Bunadji) into the Nigeria, Ben Salem ainsi que al. (2009) regarding 29.seven ± 4.one year from inside the Holstein during the Tunisia and Srairi and you will Mousili (2014) out of 31 months into the Montbeliard in Morocco. Specific variation points of this AFC were examined to achieve the comments.

One of the some other crossbreeding models known ( Dining table step 1 ), the Fulani Zebu (FZ) inseminated which have sperm away from Montbeliard (MB x FZ) and you will Alps Brownish (Abdominal x FZ) keeps brought one particular precocious corssbreeds (basic calving at the a couple of years) (5%). When you are, the latest inseminations off Fulani Zebu cattle toward sperm regarding Holstein (HT x FZ) and you may out-of Tarentaise (T x FZ) then insemination regarding Gudali Zebu cows with semen regarding Montbeliard (MB x GZ) provides introduced brand new precocious crossbreed cattle.

Minimal try days plus the limit is actually months

Dining table 1: Years in the beginning calving (months) according to crossbreeding enter in milk products cows farms in the region regarding Bobo-Dioulasso inside the Burkina Faso

The analysis focused on the fresh new breeding tabs on twenty (20) crossbreed cattle as a consequence of the fresh new interbreeding from the phony insemination ranging from local breed cows (Gudali Zebu and you may Fulani Zebu) and you may amazing breed bulls (Holstein, Alps Brown, Tarentaise, Montbeliard). These crossbreeds was basically born ranging from 1999 and you may 2010 and you will offered its earliest calf between 2002 and you may 2012 into around three increased stock facilities inside metropolitan and you will residential district areas of Bobo-Dioulasso. All these farms possess in the fifty crossbreed cows from inside the design. The initial ranch is located in a city, the second ten Kilometres out from the south get off therefore the 3rd sixty Kilometer aside during the east get-off off Bobo-Dioulasso. First surveys between throughout these portion helped to choose these around three facilities which have a cattle check in (temperatures and fake insemination overseeing sheet sets). Events about private track of creature breeding instance calving times, dates of one’s first heats and you may inseminations was indeed submitted every day of the the latest cattlemen additionally the inseminators. The fresh new exploitation of those data files managed to make it you’ll to decide twenty (20) basic calving’s comparable to the first services. This type of farms is actually characterized by the existence of forgotten, a good herd fitness overseeing, a led breeding mode (mostly AI, getting lack of a designated bull), the fresh concentrate provides (cotton fiber pie or cottonseed and you will commercial malt) in the ration eating and intense delivery off silage and you will farming of the points. The sole purpose of this process sort of is the design and you can selling regarding manually canned dairy, two times a day (day and you may nights). Brand new focuses are served to your pet to their return out-of grazing as well as in brand new day at the milking go out.

Leave a Reply

Tu dirección de correo electrónico no será publicada. Los campos obligatorios están marcados con *

You may use these HTML tags and attributes:

<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>