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14 Novembre 2022

This indicates that crossbreed cattle is actually sexually more precocious than simply exotic cattle ( Wassie ainsi que al

This indicates that crossbreed cattle is actually sexually more precocious than simply 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.

So you’re able to greatest see the effectation of new crossbreeding towards intimate precocity from hybrid dogs, this new AFC is examined based on: crossbreed types of, competition out-of sire mothers (bull and you can inseminated local cows), hybridization level and stock farms

The new suggest many years to start with calving for everybody breeds built is actually ± weeks, symbolizing everything 3 years (a couple of years eleven months 19 weeks ± eleven months twenty four hours). The quintessential precocious heifers calved within 24 months ( months). To own 50% regarding heifers, earliest calving is at days. The first properties happened typically during the ± months ( to help you months).

Brand new imply AFC of crossbreeds is lower than those people reported one of the Zebu according to the tropics at the more than 40 days stated in lot of degree ( Rahman mais aussi al., 2016 ; Tellah mais aussi al., 2015a , 2015b ; Bashir and you may Este Zubeir, 2013 ; Sokouri ainsi que al., 2010 ; Bayemi et al., 2005 ). , 2015 ). Certain article authors possess claimed overall performance very alongside our observance toward different crossbreeds in the Africa, despite cow types utilized in the brand new try: 34 months among the many Montbeliard crossbreeds during the Algeria ( Madani and you can Mouffok, 2008 ) and you may Morocco ( Srairi and Mousili, 2014 ), ± 0.43 weeks about Girolando hybrid during the Benin ( Doko mais aussi al., 2012 ). It was an equivalent for the Holstein-Friesian hybrid cows in Ethiopia at thirty six.cuatro ± step 1.eight days, new Borgou and you may Lagunaire breeds within 36.1 ± 6.31 weeks during the Benin ( Adamou-Ndiaye ainsi que al., 2003 ) and in the latest Azawak Zebu during the thirty six.5 ± cuatro.10 and you will ± 13 weeks into the Niger ( Achard and you may Chanono, 2006 , 1997 ).

Our observance are more than the individuals advertised by the Genzebu et al. (2016) among crossbreed cattle in the Kenya (twenty-six.9 ± 5.cuatro and you can 27.0 ± step 3.eight days). It had been somewhat better than the new findings of the Ngodigha mais aussi al. (2009) away from 30.seven ± 2.5 months certainly crossbreeds (Holstein x Bunadji) when you look at the Nigeria, Ben Salem ainsi que al. (2009) of 30.seven ± cuatro.12 months for the Holstein in the Tunisia and Srairi and you will Mousili (2014) away from 29 days when you look at the Montbeliard when you look at the Morocco. Some type activities associated with the AFC had been examined to help you reach the comments.

One of the various other crossbreeding types understood ( Table step one ), new Fulani Zebu (FZ) inseminated which have sperm regarding Montbeliard (MB x FZ) and you may Alps Brown (Ab x FZ) enjoys brought more precocious corssbreeds (first calving from the 2 years) (5%). Whenever you are, new inseminations from Fulani Zebu cows into the sperm away from Holstein (HT x FZ) and you will out-of Tarentaise (T x FZ) then the insemination regarding Gudali Zebu cattle which have semen away from Montbeliard (MB x GZ) has produced the newest precocious crossbreed cattle.

The minimum are days as well as the limit is actually days

Dining table step 1: Ages to start with calving (months) predicated on crossbreeding enter in whole milk cattle facilities in your neighborhood away from Bobo-Dioulasso when you look at the Burkina Faso

The research focused on the newest reproduction monitoring of twenty (20) hybrid cows because of the newest interbreeding from phony insemination between regional reproduce cows (Gudali Zebu and you may Fulani Zebu) and you can amazing reproduce bulls (Holstein, Alps Brownish, Tarentaise, Montbeliard). Such crossbreeds was created anywhere between 1999 and you can 2010 and you can provided their basic calf ranging from 2002 and you may 2012 for the about three improved stock farms when you look at the metropolitan and you may residential district aspects of Bobo-Dioulasso. Every one of these facilities has actually on fifty crossbreed cows in manufacturing. The first ranch is situated in a city, next ten Km away at south hop out therefore the third 60 Km out during the eastern log off away from Bobo-Dioulasso. Original surveys anywhere between on these section helped to select these types of around three facilities which have a livestock register (heat and you can phony insemination monitoring sheets). Situations about private track of creature reproduction particularly calving dates, times of one’s basic heats and you may inseminations was indeed registered everyday by the the newest cattlemen together with inseminators. Brand new exploitation of those data files managed to get it is possible to to determine twenty (20) earliest calving’s comparable to the initial qualities. These types of farms are characterized by the existence of forgotten, good herd wellness keeping track of, a guided reproduction function (mainly AI, getting not enough a specified bull) rencontre avec moyen oriental, the newest focus provides (cotton cake otherwise cottonseed and commercial malt) from the ration feeding and extreme distribution from silage and you will farming of the facts. Truly the only aim of that it operation type of is the creation and you can selling out-of manually processed whole milk, two times a day (morning and you may evening). The fresh new focuses are served toward dogs on their get back away from grazing plus the brand new day at milking big date.