This shows one crossbreed cows try sexually a lot more precocious than just warm cattle ( Wassie et 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 better comprehend the effect of the brand new crossbreeding towards intimate precocity out of crossbreed animals, new AFC try reviewed considering: crossbreed type of, race regarding sire parents (bull and you will inseminated local cows), hybridization height and stock facilities
The imply years at first calving for everyone breeds built are ± weeks, representing whenever three-years (2 yrs eleven months 19 days ± eleven months a day). Probably the most precocious heifers calved in this couple of years ( months). Having fifty% out of heifers, very first calving is at months. The original characteristics took place on average on ± months ( in order to weeks).
Brand new indicate AFC of one’s crossbreeds are less than men and women said among the many Zebu under the tropics from the more than forty days said a number of knowledge ( Rahman et al., 2016 ; Tellah et al., 2015a , 2015b ; Bashir and you may Este Zubeir, 2013 ; Sokouri ainsi que al., 2010 ; Bayemi et al., 2005 ). , 2015 ). Some article writers have stated overall performance extremely near to our very own observance on some other crossbreeds inside Africa, regardless of cow breeds used in brand new experiment: 34 weeks among the Montbeliard crossbreeds when you look at the Algeria ( Madani and Mouffok, 2008 ) and Morocco ( Srairi and Mousili, 2014 ), ± 0.43 months on Girolando hybrid for the Benin ( Doko mais aussi al., 2012 ). It actually was a comparable toward Holstein-Friesian hybrid cows when you look at the Ethiopia within 36.cuatro ± step 1.7 days, new Borgou and you will Lagunaire breeds within thirty-six.step one ± six.31 months inside the Benin ( Adamou-Ndiaye mais aussi al., 2003 ) as well as in brand new Azawak Zebu at the thirty six.5 ± cuatro.10 and ± thirteen months in the Niger ( Achard and you will Chanono, 2006 , 1997 ).
Our very own observation is greater than those people advertised from the Genzebu mais aussi al. (2016) among hybrid cattle during the Kenya (twenty six.nine ± 5.cuatro and you can twenty seven.0 ± step 3.7 days). It had been some better than the fresh new observations because of the Ngodigha ainsi que al. (2009) off 31.7 ± dos.5 weeks among crossbreeds (Holstein x Bunadji) during the Nigeria, Ben Salem mais aussi al. (2009) from 29.7 ± cuatro.one year inside the Holstein from inside the Tunisia and you may Srairi and you will Mousili (2014) away from 29 days inside Montbeliard from inside the Morocco. Specific variation products on the AFC were analyzed to achieve the comments.
One of many more crossbreeding items understood ( Desk step one ), the new Fulani Zebu (FZ) inseminated having semen regarding Montbeliard (MB x FZ) and you will Alps Brownish (Ab x FZ) keeps lead the quintessential precocious corssbreeds (earliest calving during the 2 yrs) (5%). Whenever you are, the new inseminations out-of Fulani Zebu cows towards semen from Holstein (HT x FZ) https://datingranking.net/fr/sites-erotiques and regarding Tarentaise (T x FZ) then the insemination off Gudali Zebu cows that have sperm out-of Montbeliard (MB x GZ) keeps produced brand new precocious hybrid cows.
The minimum is actually months in addition to limit is days
Table 1: Ages to start with calving (months) considering crossbreeding type in milk cows facilities in your community away from Bobo-Dioulasso inside the Burkina Faso
The study concerned about the latest breeding tabs on twenty (20) hybrid cows through the interbreeding through the artificial insemination anywhere between local breed cows (Gudali Zebu and you can Fulani Zebu) and you may unique breed bulls (Holstein, Alps Brownish, Tarentaise, Montbeliard). These types of crossbreeds had been produced ranging from 1999 and 2010 and you will gave the first calf anywhere between 2002 and you will 2012 on the about three increased stock facilities in metropolitan and residential district regions of Bobo-Dioulasso. Every one of these facilities possess about fifty hybrid cows during the manufacturing. The initial ranch is found in an urban area, next ten Kilometer out from the south get off therefore the 3rd sixty Km aside in the east get off away from Bobo-Dioulasso. First studies between during these elements aided to pick such about three facilities which have a livestock check in (temperature and you may fake insemination overseeing sheet sets). Events related to individual track of animal reproduction instance calving schedules, schedules of your earliest heats and you will inseminations was in fact filed every day from the the cattlemen while the inseminators. The newest exploitation of them files managed to make it you are able to to determine twenty (20) basic calving’s corresponding to the original functions. This type of farms are characterized by the presence of forgotten, a beneficial herd fitness overseeing, a guided reproduction form (generally AI, to have lack of a selected bull), the focus provides (pure cotton pie otherwise cottonseed and you may industrial malt) regarding the ration serving and intense delivery away from silage and farming from the situations. Truly the only aim of this operation type ‘s the design and you can sale regarding yourself processed dairy, twice a day (day and you may nights). The latest concentrates try supported into the animals on their come back out of grazing along with new day at the milking date.
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