Livestock Research for Rural Development 29 (6) 2017 Guide for preparation of papers LRRD Newsletter

Citation of this paper

Phenotypic variations between wild and farm-reared quails of Kenya

L Wamuyu, M Mberu, T Imboma1, V Obanda2, B Agwanda1, J Lichoti3, K J Ngeiywa3 and S C Ommeh

Institute for Biotechnology Research, Jomo Kenyatta University of Agriculture and Technology (JKUAT),
P O Box 62000, City Square 00200, Nairobi-Kenya.
sommeh@jkuat.ac.ke
1 Department of Zoology, National Museums of Kenya
2 Department of Veterinary Services, Kenya Wildlife Service
3 State Department of Livestock, Ministry of Agriculture Livestock and Fisheries, Kenya

Abstract

Over the past few years, quail meat and eggs have gained popularity among consumers in Kenya. However, there is scanty information available regarding quail farming and differences between wild and farm-reared quails in Kenya. The aim of our study was to carry out a survey on quail farming in Kenya, document the indigenous knowledge traditionally used by rural farmers for quail farming and identify the phenotypic variations between wild and farm-reared quails. Seventy-eight wild quails and twenty-two farm-reared quails were sampled and morphological measurements of wing length, shank length and body weight were taken. Phenotypic characteristics of skin and shank color were also assessed.

Our results showed that wild quails are smaller compared to farm-reared quails. We also observed that wild and farm-reared quails in Kenya differ in skin color and shank color thus very distinct from each other. This information will prove useful towards conservation and sustainable use of the wild quail biodiversity and improvement of quail farming in Kenya.

Key words: cortunix, conservation, diversity, emerging livestock


Introduction

Quails are widely distributed in Kenya as either wild or farm-reared populations. The most common wild species of quails found in Kenya include common quail (Coturnix coturnix), African blue quail ( Coturnix adansonii), rain quail (Cortunix coromandelica), and African harlequin quail (Cortunix delegorguei) (Lewis & Pomeroy 1989). Common quails travel from Europe during winter from the Mediterranean south to tropical Africa, where they overlap with African bird populations of the erlangeri and africana subspecies. They migrate back towards the end of January and start arriving in Northern Africa towards the end of February. Some carry on with the migration and arrive at South Europe (Spain, Romania) towards the end of March (Perennou C 2009). Coturnix Africana is resident in Africa (Fuller 2000).

In Kenya, the common quail is found in Turkana, Kisumu, Nairobi, Loita Hills and Tsavo. The African blue quail (Coturnix adansonii) is mainly found in Western and Southern Kenya and their migratory movement is not well documented. Their breeding season is during or after rains, and in Kenya, this happens between the months of May–July (Jackson 1926). The African harlequin quail species (Cortunix delegorguei) are both resident and migratory moving in large numbers into areas of lush grasslands (Alderton D 1922). They breed between the months of October to March and are commonly preferred for food. The rain quail ( Cortunix coromandelica) is nomadic and widespread in Kenya. Its movements coincide with the onset of the rains. Their breeding season is dependent on rainfall and it happens between March-October. The rain quail is closely related to the harlequin quail (Johns Gard 1988). The Japanese quail (Coturnix japonica) is native to Asia but it is also found in many parts of Africa including Kenya. The species breeds between the months of May-August (Pappas 2016).

Since ancient times, quail meat and eggs have been a delicacy and there are even Biblical quotations of their use as a source of meat (Boni et al 2010). Recently, quail as an emerging livestock species has gained economic importance producing eggs and meat that are favored due to their unique flavor (Vali, 2008). Japanese quail (Coturnix japonica) is the most common farm-reared species in Kenya. They show earlier sexual maturity, greater egg production with higher hatching and survival rate. Wild Japanese quail lay 7 to 14 eggs per year, whereas farm-reared Japanese quail can lay about 280 eggs per year under normal feeding conditions (Chang et al 2009). Furthermore, farm-reared Japanese quail are better adapted to captivity and are more productive (Puigcerver et al 2007). Although all farm-reared quails are from wild species, many obvious differences are evident today (Chang et al 2005). Therefore, there is a need to study phenotypic and genetic variations between wild and farm-reared quails in Kenya. The valuable information garnered from this study will aid in the conservation of biodiversity as well as inform stakeholders in Kenya on a sustainable national breeding program for quails.


Materials and methods

Study area for quail farming survey

We conducted an initial countrywide survey in the year 2015 on indigenous methods of quail farming amongst farmers and middlemen in the following counties: Migori, Homabay, Kisumu, Siaya, Vihiga, Kakamega, Busia, Bungoma and Trans-Nzoia counties. We also conducted a survey on commercial quail rearing among farmers in Kajiado, Kiambu and Nairobi counties.

Study area for sample collection

Wild quail samples were collected from Siaya County while farm-reared quail samples were collected from peri-urban areas in Kajiado County in the year 2015. Siaya County is located on the shores of Lake Victoria. It receives an annual rainfall of between 1,170 mm -1,450 mm and temperature range of between 15°C -30°C. It lies between latitudes 0° 26´ North to 0° 90´ South and longitudes 33° 58´ East and 34° 35´ West. The altitude rises from 1140 m to 1400 m. Main economic activities in Siaya County include subsistence farming, livestock keeping, fishing, rice farming and small-scale trading. Kajiado County borders Nairobi and extends to theTanzania border further south. This county is dry with no continually flowing rivers and is a semi-arid region. The annual rainfall ranges between 500mm-1250mm and temperatures ranges between 20°C-30°C. The major economic activities in this county include agriculture, livestock production, poultry farming, tourism and forestry.

Figure 1. Map of Kenya showing counties surveyed; counties in yellow were additionally sampled (Source: http://d-maps.com/carte.php)
Study clearance

This study received ethical clearance from the Kenya Wildlife Service under permit number KWS/BRM/5001 to sample wild quails and a “no objection for the research” from the Director of Veterinary Services, Ministry of Agriculture, Livestock and Fisheries in Kenya under permit number RES/POL/VOL.XXVII/162 to sample farm-reared quails.

Data collection

We used questionnaires to interview farmer’s households in Siaya and Kajiado. A total of 78 wild and 22 farm-reared adult quails were sampled and characterized under field conditions for morphological traits. The determined sample size was meant to serve for both phenotypic and population genetic studies. Therefore, sampling was done according to Hale et al., (2012), who stated that around 20-30 individuals per population are sufficient for population genetic studies. Wing length, shank length and body weight measurements of each quail were taken. Other phenotypic characteristics assessed were skin and shank color.

Data Analysis

Variations in traits between wild and farm-reared groups were tested by applying T-Test and Analysis of Variance (ANOVA) using R Core statistical software version 3.1.2.


Results and discussion

Traditional quail farming methods in Kenya

We confirmed that traditional quail farming method is practiced mainly in Western Kenya. This practice was evident in all the counties surveyed along Lake Victoria apart from Bungoma and Trans-Nzoia. We noted that following the long and short rains, wild quails are available seasonally in the market between May to July and November to February respectively. Wild quails are captured using indigenous methods that local farmers have used for many generations. This indigenous knowledge has been passed on from one generation to the next. Long poles, usually four meters in length, are placed on manmade thicket quadrants. The poles are usually bent and have small woven baskets around 10-30 attached on its sides each carrying either a male or female as bait (Figure 2).

Figure 2. Images showing tools and methods used in traditional quail harvesting in Western Kenya.

A – Long poles with woven baskets containing baited male and female quails
B - Woven basked with a baited quail
C
- Woven baskets containing baited male and female quails ready to be placed on a pole
D - Man-made thicket quadrants
E
- Neck-traps made of threads set up in the thicket quadrants
F – A male quail trapped with the neck-trap in the thicket quadrant

Neck-traps made of thread are usually put on the manmade thicket quadrants shown above. The trapping of wild quails occurs at night from 12.00am to 3.00 am, when the baited females and males in the baskets sing to attract the other males and females for mating. The males and females come from a distance and are usually trapped with the neck-traps.

We noticed that all farmers were males for security reasons since the practice is usually done at night. It has not been established if this practice will eventually lead to an ecological imbalance since we observed that more male quails are often captured than females. The natural grassland areas which are common along Lake Victoria are fast disappearing due to increased farming. This observation, together with the dangers of climate change, are of main concern as the quail migration pattern is becoming unreliable hence this practice cannot be sustained in the long run.

Phenotypic differences between wild and farm-reared quails

We confirmed that the African harlequin quail (Cortunix delegorguei) is the most common wild quail species captured by many farmers in Western Kenya. We don’t rule out the fact that other wild quail species are also captured with these indigenous methods but we did not observe any other species during the 2015 survey. Phenotypically, the African harlequin quail in Western Kenya differs from farm-reared quails which at the time of our survey in 2015 were common in urban and peri-urban areas of Nairobi, Kiambu and Kajiado counties (figure 3). The most common farm-reared quail in Kenya is the Japanese quail, however, other species that are also popular with some farmers are also imported into Kenya (figure 3).

Figure 3. Wild and farm-reared quails in Kenya

A & B – Male and female African harlequin quail (Cortunix delegorguei)
C & D
– Male and female farm-reared Japanese quail (Cortunix japonica)
E-H – Other farm-reared quail species found in Kenya; E&G are male and F&H are female
Shank and Skin Colour

Our study revealed variations in shank colour and skin color between wild and farm-reared quails in Kenya. Wild quails both male and female had the same skin and shank color that is yellow and pink/red respectively. Farm-reared quails whether male or female had the same skin and shank color which is pink and white respectively. Shank and Skin colour variations between wild and farm-reared birds have also been reported in other studies. Panyako et al (2016) reported variations in skin and shank colour between wild and domesticated farm-reared helmeted guinea fowls in Kenya. Variations in shank and skin colour have also been reported in indigenous chicken sampled from various regions in Kenya (Moraa et al., 2015).

Body Weight

Our results indicated no considerable body weight difference between male and female farm-reared quails (Table 1). However, there was a significant difference in body weight between male and female wild quails where the females were heavier than males. This finding was similar to results of Tavaniello (2014) who observed that female quails were slightly heavier than male quails.

Table 1. T-test results on mean body weight variations between female and male quails

Species

Sex

Observation
(n)

Mean
Weight (g)

Degree of
Freedom (df)

p

Farm-reared

Female
Male

10
10

152
146

20.0
20.0

0.77
0.77

 

Wild

Female
Male

39
38

70.0
65.0

65.0
65.0

0.02
0.02

*= significant at 0.05, **= significant at 0.01, ***= significant at 0.001 and NS= Not significant.

We also noted that farm-reared quails were heavier than wild quails (Table 2). Shanaway (1994) and Minvielle et al (2006) also reported that farm-reared quails, especially those kept for meat production, were heavier than wild quails.

Table 2. ANOVA results on mean body weight variations between farm-reared and wild quails

Species

Observation
(n)

Mean
Weight (g)

Standard
Deviation (sd)

p

Farm-reared

22

95.1

8.45

<2e-16***

Wild

78

67.6

9.17

<2e-16***

*= significant at 0.05, **= significant at 0.01 and ***= significant at 0.001. NS= Not significant.

Wing Length

We observed that female farm-reared quails had longer wings when compared to the males (table 3).

Table 3. T-test results on mean wing length variations between female and male quails

Species

Sex

Observation
(n)

Mean Wing
Length (mm)

Degree of
Freedom (df)

p

Farm-reared

Female
Male

11
11

100.0
89.7

18.6
18.6

0.00
0.00

 

Wild

Female
Male

39
39

96.0
96.0

73.3
73.3

0.39
0.39

*= significant at 0.05, **= significant at 0.01, ***= significant at 0.001 and NS= Not significant.

Wild quails had no significant wing length variation between male and females (Table 4). There was no significant wing length variation between wild and farm-reared quails. This is similar to the observations made by Chang et al (2009) who compared biological features between wild and farm-reared quails.

Table 4. ANOVA results on mean wing length variations between farm-reared and wild quails

Species

Observation
(n)

Mean Wing
Length (mm)

Standard
Deviation (sd)

p

Farm-reared

22

95.1

8.45

0.34

Wild

78

96.6

6.00

0.34

*= significant at 0.05, **= significant at 0.01, ***= significant at 0.001 and NS= Not significant.

Shank Length

We found no variation in shank length between farm-reared female and male quails (Table 5). However, there was variation in shank length between female and male wild quails where females were found to have a longer shank length.

Table 5. T-test results on mean shank length variations between female and male quails

Species

Sex

Observation
(n)

Shank
Length (mm)

Degree of
Freedom (df)

p

Farm-reared

Female
Male

11
11

38.4
38.0

20
20

0.62
0.62

 

Wild

Female
Male

39
39

31.4
30.7

76
76

0.00
0.00

*= significant at 0.05, **= significant at 0.01 ***= significant at 0.001 and NS= Not significant

Farm-reared quails were observed to have a longer shank length in comparison to wild quails (Table 6). Shank length in quails was found to affect production traits and feed consumption (Dikmen & Ipek, 2006).

Table 6. ANOVA results on mean shank length variations between exotic and wild quails

Species

Observation
(n)

Mean Shank
Length (mm)

Standard
Deviation (sd)

p

Exotic quails

22

38.2

2.00

***

Wild Quails

78

31.0

1.10

 

*= significant at 0.05, **= significant at 0.01, ***= significant at 0.001 and NS= Not significant ***  


Conclusions


Implications


Acknowledgment

The authors will like to thank Kenya Wildlife Service, The Ministry of Agriculture Livestock and Fisheries, extension officers and farmers who participated in the study. This research was funded by grants awarded to Dr. Sheila Ommeh by International Foundation of Science (IFS) under research grant number B/5364-1 in partnership with Syngenta Foundation and Jomo Kenyatta University of Agriculture and Technology (JKUAT) under research grant number JKU/2/4/RP/181.


References

Alderton D 1922 The Atlas of Quails. Neptune City, NJ: T.F.A. Publications.

Boni I, Nurul H and Noryati I 2010 Comparison of meat quality characteristics between young and spent quails. Int. Food Res. J, 17, 661-666.

Chang G B, Chang H, Liu X P, Wang H Y, Xu W, Zhao W M and Wang Q H 2005 Study on genetic diversity of wild quail in China with microsatellite DNA markers. Yi chuan xue bao= Acta genetica Sinica, 32(8), 795-803.

Chang G B, Liu X P, Chang H, Chen G H, Zhao W M, Ji D J and Hu G S 2009 Behavior differentiation between wild Japanese quail, exotic quail, and their first filial generation. Poultry Science, 88(6), 1137–1142.

Dikmen B Y, Ipek A 2006 The Effects of Shank Length on egg production and egg quality traits of Japanese Quails ( Coturnix coturnix japonica ). In EPC 2006-12th European Poultry Conference, Verona, Italy, 10-14 September, 2006 . World's Poultry Science Association (WPSA).

Fuller R A 2000 Partridges, Quails, Francolins, Snowcocks, Guineafowl, and Turkeys: Status Survey and Conservation Action Plan 2000-2004 (Vol. 54). IUCN.

Hale L, Burg M and Steeves E 2012 Sampling for Microsatellite-Based population genetic studies: 25 to 30 individuals per population is enough to accurately estimate Allele frequencies. PLoS ONE, 7(9), e45170.

Jackson F J 1926 Notes on the game birds of Kenya and Uganda:(including the sand-grouse, pigeons, snipe, bustards, geese, and ducks) by Sir Frederick J. Jackson . Williams & Norgate.

Johnsgard P A and Jones H 1988 Quails, Partridges, and Francolins of the World . Oxford University Press.

Lewis A and Pomeroy D 1989 A Bird Atlas of Kenya. CRC Press.

Maiorano G, Sobolewska A, Cianciullo D, Walasik K, Elminowska-Wenda, G, Slawinska, A and Bednarczyk M 2012 Influence of in ovo prebiotic and synbiotic administration on meat quality of broiler chickens. Poultry Science, 91(11), 2963–2969.

Minvielle F, Kayang B B, Inoue-Murayama M, Miwa M, Vignal A, Gourichon D and Ito S ichi 2006 Search for QTL affecting the shape of the egg laying curve of the Japanese quail. BMC Genetics, 7, 26.

Moraa G K, Oyier P A, Maina S G, Makanda M, Ndiema E K, Alakonya A E, Ngeiywa K J, Lichoti J and Ommeh S C 2015 Assessment of phenotypic traits relevant for adaptation to hot environments in indigenous chickens from four agro-climatic zones of Kenya. Livestock Research for Rural Development. Volume 27, Article #200. Retrieved January 25, 2017

Panyako P M, Imboma T, Kariuki D W, Makanda M, Oyier P A, Malaki P, Ndiema E K, Obanda V, Agwanda B, Ngeiywa K J, Lichoti J and Ommeh S C 2016 Phenotypic characterization of exoticated and wild helmeted Guinea fowl of Kenya. Livestock Research for Rural Development. Volume 28, Article #158. Retrieved January 25, 2017

Pappas J 2016 Coturnix japonica (Japanese quail). Retrieved July 18, 2016, from http://animaldiversity.org/accounts/Coturnix_japonica/

Perennou C 2009 European Union Management Plan 2009–2011. Common quail (pp. 2009-032). Coturnix coturnix.

Puigcerver M, Vinyoles D and Rodríguez-Teijeiro J D 2007 Does restocking with Japanese quail or hybrids affect native populations of common quail Coturnix coturnix? Biological Conservation, 136(4), 628-635.

Shanaway M M 1994 Quail Production Systems: A Review. Food & Agriculture Org.

Tavaniello S 2014 Effect of cross-breed of meat and egg line on productive performance and meat quality in Japanese quail (Coturnix japonica) from different generations. Retrieved July 18, 2016, from http://road.unimol.it/handle/2192/247

Vali N 2008 The Japanese quail: A review. Int. J. Poult. Sci, 7(9), 925–931.

Wilson W, Anderson B and Siopes T 1971 Importation of wild strain Japanese quail (wild coturnix) offers new game bird possibility. California Agriculture, 25(7), 5-6.


Received 27 January 2017; Accepted 20 March 2017; Published 1 June 2017

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