Research Article

 

 

Age at First Calving for Crossbreed Cows in Urban and Suburban Areas of Bobo-Dioulasso in Burkina Faso

 

Madjina Tellah1*, Seydou Blagna2, Youssouf Mopaté Logténé3, Hamidou Boly2

1Higher National Institute of Sciences and Techniques of Abéché (INSTA) ex University Institute of Sciences and Techniques of Abéché (IUSTA), BP 130 Abéché, CHAD; 2Polytechnic University of Bobo-Dioulasso (UPB). 01 BP 1091 Bobo-Dioulasso, BURKINA FASO; 3Research in Livestock Development Institut (IRED) ex Veterinary Research and Zootechnical Laboratory (LRVZ) Farcha BP. 433, N’Djamena, CHAD.

 

Editor | Asghar Ali Kamboh, Sindh Agriculture University, Tandojam, Pakistan.

Received | August 14, 2016; Accepted | November 01, 2016; Published | November 20, 2016

*Correspondence | Madjina Tellah, Higher National Institute of Sciences and Techniques of Abéché (INSTA) ex University Institute of Sciences and Techniques of Abéché (IUSTA), BP 130 Abéché, CHAD; Email: madjinatellah@gmail.com; madjina_tellah@yahoo.fr

Citation | Tellah M, Blagna S, Mopate Logtene Y, Boly H (2016). Age at first calving for crossbreed cows in urban and suburban areas of Bobo-Dioulasso in Burkina Faso. J. Anim. Health Prod. 4(4): 118-122.

DOI | http://dx.doi.org/10.14737/journal.jahp/2016/4.4.118.122

ISSN | 2308–2801

Copyright © 2016 Tellah et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

 

Introduction

 

Cows in African tropical areas are known to have low reproductive performances. Age at first calving reported by several authors happens after 45 months (Tellah et al., 2015a, 2015b; Bashir and El Zubeir, 2013; Sokouri et al., 2010; Bayemi et al., 2005). This sexual precocity delay results from a combination of genetic, biological, environmental factors and those associated with herd management (Adamou N’Diaye et al., 2003). The suburban farming development geared towards milk production with concern for return on investment in this sector requires very high improved reproductive and productive factors to sustain these operations. Investment in Artificial Insemination (AI) program and the associated reproduction control techniques have reduced the age at first calving among the cattle in Africa (Genzebu et al., 2016) and the duration of the unproductive period in ruminants after dropping (Panicker et al., 2015). Therefore, the heifer precocities at first calving are a critical factor in improving all product types (milk, meat etc.) and genetic improvement in cattle (Bodin et al., 1999).

 

This study aims to assess the Age at First Calving (AFC) of crossbreed cows in the sub humid area of Bobo-Dioulasso in Burkina Faso. Specifically, it is to identify the main types of crossbreeding used with a view to promote those effective ones to be recommended to the producers.

 

Material and Methods

 

Study Zone

 

The study regards the suburban area of Bobo-Dioulasso (Burkina Faso) where an improved cattle rearing is booming. This city is the administrative centre of the Hauts-Bassins Region in the western part of the country. The climate is of south Sudanese type with two seasons: 6-months (May to October) of rainy season and 6 months (from November to April) of dry season. The annual rainfall ranges from 900 to 1200 mm and temperatures between 10°C and 37°C. The most important hydrographical system consists of the Mouhoum basin that drains the entire region with a permanent water source, widely used for agriculture and livestock. It is a high grass area dominated by Andropogon ascinodi, Loudetia togoensis, Diheteropogon hagerupii, Imperata cylindrica, Schizachyrium brevifolium, Oryza barthii and Acroceras amplectens. It is a well wooded area with woodlands infested by tsetse flies, the African animal trypanosomiasis vectors. The region is major cotton, cereals (sorghum, millet and maize) and yam producers. Moreover, the presence of large orchards (mango, citrus and cashew trees, etc.) and seasonal migrants in the area during the dry season, make it an area for agrosylvopastoral activities and corresponds to the area of sedentary local breed rearing.

 

Animals and Cattle Management

 

The study focused on the reproduction monitoring of twenty (20) crossbreed cows resulting from the interbreeding through the artificial insemination between local breed cows (Gudali Zebu and Fulani Zebu) and exotic breed bulls (Holstein, Alps Brown, Tarentaise, Montbeliard). These crossbreeds were born between 1999 and 2010 and gave their first calf between 2002 and 2012 on three improved stock farms in urban and suburban areas of Bobo-Dioulasso. Each of these farms has about fifty crossbreed cows in production. The first farm is located in an urban area, the second 10 Km away at the south exit and the third 60 Km away at the east exit of Bobo-Dioulasso. Preliminary surveys between July and November 2012 in these areas helped to select these three farms which have a cattle register (heat and artificial insemination monitoring sheets). Events related to individual monitoring of animal reproduction such as calving dates, dates of the first heats and inseminations were recorded daily by the cattlemen and the inseminators. The exploitation of these documents made it possible to choose twenty (20) first calving’s corresponding to the first services. These farms are characterized by the presence of shed, a herd health monitoring, a guided reproduction mode (mainly AI, for lack of a selected bull), the concentrate supplies (cotton cake or cottonseed and industrial malt) in the ration feeding and intensive distribution of silage and agricultural by products. The only aim of this operation type is the production and marketing of manually processed milk, twice a day (morning and evening). The concentrates are served to the animals on their return from grazing and in the morning at milking time.

 

Statistical Analysis

 

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). In order to better understand the effect of the crossbreeding on sexual precocity of hybrid animals, the AFC was analyzed according to: crossbreed type, race of sire parents (bull and inseminated local cows), hybridization level and stock farms. These parameters were analyzed by ANOVA and the results were compared using the Newman-Keuls test. Differences were considered significant for p < 0.05.

 

Results and Discussion

 

The mean age at first calving for all breeds put together was 35.62 ± 11.04 months, representing approximately 3 years (2 years 11 months 19 days ± 11 months 1 day). The minimum was 21.20 months and the maximum was 38.58 months. The most precocious heifers calved within 2 years (21.20 months). For 50% of heifers, first calving is at 26.98 months. The first services were held on average at 26.79 ± 10.01 months (13.30 to 44.83 months).

 

The mean AFC of the crossbreeds was lower than those reported among the Zebu under the tropics at more than 40 months reported in many studies (Rahman et al., 2016; Tellah et al., 2015a, 2015b; Bashir and El Zubeir, 2013; Sokouri et al., 2010; Bayemi et al., 2005). This shows that crossbreed cows are sexually more precocious than tropical cattle (Wassie et al., 2015). Some authors have reported results very close to our observation on different crossbreeds in Africa, notwithstanding cow breeds used in the experiment: 34 months among the Montbeliard crossbreeds in Algeria (Madani and Mouffok, 2008) and Morocco (Sraïri and Mousili, 2014), 35.26 ± 0.43 months in the Girolando crossbreed in Benin (Doko et al., 2012). It was the same with the Holstein-Friesian crossbreed cows in Ethiopia at 36.4 ± 1.7 months, the Borgou and Lagunaire breeds at 36.1 ± 6.30 months in Benin (Adamou-Ndiaye et al., 2003) and in the Azawak Zebu at 36.5 ± 4.10 and 36.97 ± 13 months in Niger (Achard and Chanono, 2006, 1997).

 

Our observation was greater than those reported by Genzebu et al. (2016) among crossbreed cows in Kenya (26.9 ± 5.4 and 27.0 ± 3.7 months). It was slightly better than the observations by Ngodigha et al. (2009) of 30.7 ± 2.5 months among crossbreeds (Holstein x Bunadji) in Nigeria, Ben Salem et al. (2009) of 30.7 ± 4.12 months in Holstein in Tunisia and Sraïri and Mousili (2014) of 30 months in Montbeliard in Morocco. Some variation factors of this AFC were analyzed in order to attain the comments.

 

Crossbreeding Type

 

Among the different crossbreeding types identified (Table 1), the Fulani Zebu (FZ) inseminated with semen from Montbeliard (MB x FZ) and Alps Brown (AB x FZ) have produced the most precocious corssbreeds (first calving at 2 years) (5%). While, the inseminations of Fulani Zebu cows with the semen from Holstein (HT x FZ) and from Tarentaise (T x FZ) then the insemination of Gudali Zebu cows with semen from Montbeliard (MB x GZ) have produced the latest precocious crossbreed cows.

 

Table 1: Age at first calving (months) according to crossbreeding type in dairy cattle farms in the area of Bobo-Dioulasso in Burkina Faso

 

Crossing	AFC (Means ± SD)	Min	Max
Montbeliarde x Fulani Zebu (n=4)	23.95a ± 1.26	21.20	32.100
Alps Brown x Fulani Zebu (n=4)	24.51a ± 4.66	21.47	32.53
Holstein x Fulani Zebu (n=4)	33.90ab ± 8.09	26.10	44.67
Monbeliarde x Gudali Zebu (n=4)	43.34b ± 13.94	32.90	63.90
Tarentaise x Fulani Zebu (n=4)	45.09b ± 8.73	36.87	54.33

 

AFC: Age at First Calving; Min: Minimum; Max: Maximum; SD: Standard Deviation; n: No. of animals; a, b: Means with different superscript vary significantly (P< 0.05)

 

These observations were below 30 months reported among Montbeliard in Morocco (Sraïri and Mousili, 2014), 30.7 ± 2.5 months among Holstein x Bunadji crossbreeds in Nigeria (Ngodigha et al., 2009) and 30.7 ± 4.12 months in Holstein in Tunisia (Ben Salem et al., 2009). Hybrids from H x FZ crossing had their first calf at 3 years while those from MB x GZ and T x FZ crossings were the latest with first calving at about 4 years. Sexual maturity of these last two categories of crossbreeds was similar to what has been reported among the crossbreeds in Ethiopia (Wassie et al., 2015).

 

Race of Sire Bulls

 

Considering the bull breeds for different hybridization types, the crossbreeds from the Alp Brown semens are sexually more precocious than other ameliorative breeds (Table 2).

 

Table 2: Age at first calving (months) according to breed of sire bull in dairy cattle farms in the area of Bobo-Dioulasso in Burkina Faso

 

Bulls breed	AFC (Means ± SD)	Min	Max
Alps Brown (n=4)	24.51a ± 2.91	21.47	27.27
Hostein (n=4)	33.90ab ± 8.09	26.70	63.90
Montbeliard (n=8)	36.88ab ± 14.83	21.20	63.90
Tarentaise (n=4)	45.09b ± 8.73	36.87	54.33

 

For abbreviations see Table 1

 

The first calving by crossbreed cows from Alp Brown bulls had their first calving at 24.51 ± 2.91 months against 45.09 ± 8.73 months by those from Tarentaise bulls. The difference between the sire bull breeds shows a significant improvement in sexual precocity of heifers from the Alp Brown bulls (p <0.05). Crossbreeds from Alps Brown were considered the most precocious due to MB x GZ crossing. However, Gudali Zebu blood may be the cause of delayed sexual maturity of the crossbreeds compared to MB x FZ crossing which was the best interbreeding (Table 1).

 

However, precocity in the Alp Brown bulls was slightly lower than that of the crossbreeds in Kenya (26.9 ± 5.4 and 27.0 ± 3.7 months) reported by Genzebu et al. (2016). This precocity was better than that reported by other authors on different crossbreeds: 30 months in Montbeliard in Morocco (Sraïri and Mousili, 2014), 30.7 ± 2.5 months in Holstein crossbreeds in Nigeria (Ngodigha et al., 2009) and 30.7 ± 4.12 months in the Holstein in Tunisia (Ben Salem et al., 2009). After analyzing the benefits of local breeds in the crossings, cattle-breeders in Bobo-Dioulasso could have possible crossbreeding choices to promote for their profitable operations.

 

 

Breed of Inseminated Local Cows

 

Figure 1 indicates that the crossbreeds from Fulani Zebu were more precocious (33.69 months at first calving) than those from Gudali zebu (43.34 months) (p < 0.05). Crossbreeding exotic bulls with Fulani Zebu cows accelerates sexual precocity compared with the Gudali Zebu. The Fulani Zebu is better suited to the crossbreeding. The cattle breed effects on the AFC duration was in agreement with the other author observations on African cattles (Adamou-Ndiaye et al., 2002; Sraïri and Mousili, 2014).

 

Crossbreed Generation

 

The interbreeding level indicated that the 2nd generation (G2) crossbreeds were more precocious than those of the 1st generation (G1) (p <0.05; Figure 2).

 

The results of Figure 2 show a lower AFC in the 2nd generation than the first one. This is explained by the increase in the percentage of improved breed genes. Rahman et al. (2016) reported this difference of AFC following the cattle genotypes in Bangladesh.

 

 

The Farm

 

Depending on stock farms, it appears in Table 3 that heifers on farm 3 were more precocious (28.43 months at first calving) than those on the other two farms (over 40 months) and the AFC was closely correlated with the first services (R² = 0.99; p <0.0001).

 

Table 3: Age at first calving (months) according to dairy stock farms in the Bobo-Dioulasso area (Burkina Faso)

 

Farm	AFC (Means ± SD)	Min	Max
1 (n=5)	40.01a ± 14.18	26.70	63.90
2 (n=6)	42.75a ± 8.73	31.47	54.33
3 (n=9)	28.43b ± 5.74	21.20	38.33

 

For abbreviations see Table 1

 

This result is explained by the stock farm intensification levels. The farm 3 has more feed input available than the other two farms. Sexual precocity in cattle is also linked to the breeding conditions but especially to the herd feeding habit. Several authors have reported the rearing environment influence on the reproductive performances in Africa (Adamou-N’Diaye et al., 2002, 2003; Sokouri et al., 2014). The influence of the stockbreeding bad handling on crossbreed sexual precocities was observed by Genzebu et al. (2016). These authors reported that the genetic improvement of cattle reproductive performances must go through livestock management control.

 

Conclusion

 

This study done in Bobo-Dioulasso urban and suburban areas on the crossbreed cows from the local inseminated cows with the exotic breed bull semen helps to assess the age at first calving, to identify the different crossbreeding types and study the influence of different factors on AFC. The general conclusion is that the crossbreeding has reduced the age at first calving. Crossing the Montbeliard and the Fulani Zebu on the one hand, and on the other hand the Alps Brown and the Fulani Zebu gave more sexually precocious crossbreeds. Those from Holstein bulls and Fulani Zebu then the Montbeliard and Gudali zebu were relatively precocious. Crossbreeds from the Tarentaise and Fulani Zebu crossing were much late. Among the local breed cows used, the Fulani zebu is better suited to crossbreeding. Thus, to optimize the dairy farms profitability and calf per cow, cattle-breeders must promote inseminations of Fulani Zebu cows with especially the Montbeliard and Alp Brown bull semens. Furthermore, special attention should be paid to the food monitoring in order to enhance the crossbreed growths and reduce unproductive periods. However, further studies to assess the level of milk production and calving interval will be needed to better guide the cattle-breeders on the judicious choice of animals to exploit. Notwithstanding the small sample in this study, the results will be useful for further investigations on large sample of animals in order to reach a more definite conclusion.

 

Acknowledgements

 

We express our gratitude to the cattle-breeders and drovers in the study area for taking part in the realization of this survey and to Dr Alexis Mouangué Nanimina for English proofreading.

 

Conflict of Interest

 

No conflict of interest.

 

Authors’ Contribution

 

The survey formularies preparation, the data collection in farms, the data processing, the manuscript writing and submission were assured by Madjina Tellah. The farm identifications to be assured by Seydou Blagna. Then, he was associated in the survey and the manuscript writing. The manuscript writing plan was validated by Mopate Logtane Youssouf who assured afterward the manuscript revision up to its final version and proposed the review in which the manuscript should be submitted. The research protocol was validated by Boly Hamidou and he oversaw of the survey and approved the manuscript before its submission.

 

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