This shows you to definitely hybrid cattle try sexually so much more precocious than just warm cows ( Wassie mais aussi al

In order to most useful see the effectation of the latest crossbreeding into the sexual precocity of hybrid pets, new AFC are reviewed according to: crossbreed sort of, race from sire mothers (bull and inseminated regional cattle), hybridization top and you may stock facilities

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.

This new suggest age initially calving for all types built is ± days, symbolizing as much as 36 months (couple of years eleven months 19 days ± 11 days a day). Minimal try weeks in addition to maximum are days. Getting 50% from heifers, basic calving was at days. The initial qualities occurred on average during the ± days ( so you can days).

New suggest AFC of the crossbreeds was lower than the individuals stated one of many Zebu beneath the tropics in the over forty days advertised in many training ( Rahman mais aussi al., 2016 ; Tellah et al., 2015a , 2015b ; Bashir and you may El Zubeir, 2013 ; Sokouri ainsi que al., 2010 ; Bayemi et al., 2005 ). , 2015 ). Some writers enjoys said efficiency most close to the observation towards the various other crossbreeds into the Africa, notwithstanding cow breeds included in brand new experiment: 34 weeks one of several Montbeliard crossbreeds inside Algeria ( Madani and you can Mouffok, 2008 ) and you can Morocco ( Srairi and you may Mousili, 2014 ), ± 0.43 weeks throughout the Girolando crossbreed into the Benin ( Doko mais aussi al., 2012 ). It absolutely was an identical to the Holstein-Friesian hybrid cattle during the Ethiopia during the thirty six.cuatro ± days, the Borgou and you can Lagunaire types in the thirty six.step 1 ± six.31 months during the Benin ( Adamou-Ndiaye mais aussi al., 2003 ) along with the latest Azawak Zebu at thirty six.5 ± 4.10 and you will ± thirteen months in the Niger ( Achard and you will Chanono, 2006 , 1997 ).

Our very own observance was greater than men and women stated from the Genzebu mais aussi al. (2016) among crossbreed cows into the Kenya (26.9 ± 5.cuatro and you will twenty-seven.0 ± step three.eight days). It actually was a bit a lot better than the latest findings because of the Ngodigha et al. (2009) off 31.eight ± dos.5 months among crossbreeds (Holstein x Bunadji) in Nigeria, Ben Salem et al. (2009) out of ± cuatro.1 year inside Holstein when you look at the Tunisia and Srairi and Mousili (2014) of 31 weeks when you look at the Montbeliard from inside the Morocco. Certain adaptation things from the AFC were examined in order to achieve the statements.

One of many various other crossbreeding brands understood ( Dining table 1 ), the newest Fulani Zebu (FZ) inseminated which have sperm out-of Montbeliard (MB x FZ) and Alps Brown (Ab x FZ) has actually brought the essential precocious corssbreeds (very first calving on 2 yrs) (5%). Whenever you are, the new inseminations out of Fulani Zebu cows into the semen off Holstein (HT x FZ) and you may from Tarentaise (T x FZ) then insemination away from Gudali Zebu cows which have sperm out of Montbeliard (MB x GZ) have lead the new precocious hybrid cows.

The most precocious heifers calved inside two years ( months)

Desk step 1: Age at first calving (months) based on crossbreeding type in milk products cows facilities in the region of Bobo-Dioulasso inside the Burkina Faso

The study concerned about the fresh reproduction monitoring of twenty (20) hybrid cows as a result of the latest interbreeding from phony insemination between local breed cows (Gudali Zebu and you will Fulani Zebu) and you may amazing reproduce bulls (Holstein, Alps Brownish, Tarentaise, Montbeliard). Such crossbreeds had been created anywhere between 1999 and you will 2010 and you may offered its very first calf ranging from 2002 and you will 2012 on about three enhanced inventory facilities during the urban and you can suburban areas of Bobo-Dioulasso. Each one of these farms keeps regarding fifty hybrid cows when you look at the production. The initial farm is found in a city, the next ten Km away in the southern log off additionally the third sixty Kilometer aside during the east exit of Bobo-Dioulasso. Preliminary surveys ranging from throughout these parts assisted to choose these types of around three farms with a livestock check in (heat and you will phony insemination monitoring sheets). Situations linked to private monitoring of creature reproduction like calving times, dates of your own very first warms and inseminations had been registered everyday by the brand new cattlemen and also the inseminators. The exploitation of them data files caused it to be it is possible to to choose twenty (20) first calving’s corresponding to the original services. This type of farms was described as the clear presence of missing, an effective herd fitness keeping track of, a guided reproduction function (generally AI, to possess decreased a designated bull), new focus provides (cotton fiber cake or cottonseed and you can commercial malt) from the ration giving and rigorous shipping of silage and farming from the things. The only real reason for which operation type is the manufacturing and you may sales out-of by hand processed dairy, twice a day (day and you will nights). The brand new concentrates is offered into pets on the return out-of grazing plus the new early morning in the milking day.

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