Showing papers on "Coturnix published in 2020"
TL;DR: Lycopene slightly improved growth performance, but significantly improved the antioxidant status and lowered cholesterol concentration in the muscle in Japanese quail.
Abstract: This study investigated the impact of supplementing normal and high-fat diets with graded levels of lycopene on the growth performance, cholesterol level of the muscle, and antioxidant markers in Japanese quail. A total of 192, 14 day-old unsexed Japanese quail were part of a 2 x 4 factorial arrangement consisting of a control group; birds that were fed a normal fat diet (NFD), another control group; birds that were fed a high-fat diet (HFD) with four levels of lycopene for NFD and HFD (0, 100, 200 and 300mg lycopene/kg diet). Lycopene level of 300mg/kg gave the greatest body weight, body weight gain, and relative growth rate when added to the NFD, but this level showed non-significant improvement in growth performance when supplemented to an HFD. Superoxide dismutase in the muscle and liver was noted to be high in NFD+ 300mgL, HFD+ 200mgL, and HFD+ 300mgL groups, while malondialdehyde level in the muscle and liver and cholesterol level in the muscle was found to be low in the same groups. Lycopene slightly improved growth performance, but significantly improved the antioxidant status and lowered cholesterol concentration in the muscle. A diet supplemented with 300 mg lycopene/kg could be recommended for Japanese quail.
8 citations
TL;DR: The yields of carcass and cuts were not influenced by the treatments; however, abdominal fat yield decreased as the PWM levels in the diets were increased, and economic analysis showed a reduction of the feeding cost in the studied phases.
Abstract: This study was undertaken to investigate the performance, carcass characteristics, and economic viability of diets including pasta waste in meal form (PWM) for quail. A total of 450 unsexed meat quail (Coturnix coturnix coturnix) were distributed into five treatments (0, 10, 20, 30, and 40% inclusion of PWM) in a completely randomized design with six replicates, each with 15 birds. The following rearing periods were evaluated: Phase 1 - 1 to 21 days; and period of 1 to 42 days. In Phase 1, the PWM levels did not influence feed intake (FI), and the PWM inclusion levels for optimal weight gain (WG) and feed conversion (FC) were estimated at 20.70% and 22.8%, respectively. In the cumulative period of 1 to 42 days, the PWM levels did not lead to differences in FI, WG, or FC. The yields of carcass and cuts were not influenced by the treatments; however, abdominal fat yield decreased as the PWM levels in the diets were increased. Economic analysis showed a reduction of the feeding cost in the studied phases. Pasta waste meal can be included up to the level of 40% without incurring losses in the performance or carcass yield of meat quail.
4 citations
TL;DR: It is demonstrated that maternal presence influences the vocal development of the young in the Japanese quail and highlights that plasticity of vocalisations in species considered as non-vocal learners has been underestimated.
Abstract: Social influences on vocal development of young birds have been widely studied in oscine songbirds who learn to sing by vocal imitation of conspecifics, mainly male adults. In contrast, vocal development of non-vocal learners such as Galliformes is considered as being under strong genetic influence and independent of the social environment. In this study, we investigated the role of the mother on the vocal development of young Japanese quail (Coturnix coturnix japonica). We compared the vocal development of mothered and non-mothered chicks during the first 21 days of life. We analysed the structural changes of two vocalisations: a) the rally call, emitted during long-distance communication and in stressful situations, b) the contact call, emitted during short-distance communication when chicks are in visual and/or auditory contact with congeners. We showed that temporal and spectral structures of the two types of calls changed during development and differed between mothered and nonmothered chicks. These results demonstrate that maternal presence influences the vocal development of the young in the Japanese quail. Even if the adaptive value of such changes was not assessed, these results highlight that plasticity of vocalisations in species considered as non-vocal learners has been underestimated.
4 citations
TL;DR: Results demonstrate that AS had a toxic effect on secondary sexual traits and testis histology in male quail which could be alleviated by AEPAL administration at 200mg/kg of b.w.
Abstract: The control of pesticide’s toxicological properties in the food chain could be a benefit to farmers by increasing animal productivity. The current study’s objective was to evaluate the protective effects of aqueous extract of Persea americana leaves (AEPAL) on secondary sexual traits and testis histology damages induced by Antouka Super® (AS) in male Japanese quail. Sixty male quails of 28 days old and weighing 106-119g were randomly distributed into 5 groups of 12 animals each and daily received for 60 consecutive days one of the treatments: group 1 and 2 received respectively 10 ml of distilled water and 75mg/kg of b.w of AS while groups 3, 4 and 5 in addition to 75mg/kg of b.w of AS, they received respectively 50, 100 and 200 mg/kg of b.w of AEPAL. The sexual behavior characteristics were evaluated during the trial period. At the end of the study, birds were humanly sacrificed, their blood collected for testosterone analysis and the testes removed for teste structure evaluation. Results revealed that exposure to AS significantly decreased testosterone level, time of shouting and appearance of foam, quantity of foam product, the volume and area of the cloacal gland, frequency of mount and frequency of successful mount, as well as degradation of the testes histology. The administration of AEPAL increased these parameters in a dose-dependent manner. Thus, these results demonstrate that AS had a toxic effect on secondary sexual traits and testis histology in male quail which could be alleviated by AEPAL administration at 200mg/kg of b.w.
3 citations
20 Feb 2020
TL;DR: It has been concluded that MOLM can be used up to 3% to improve growth performance of quail.
Abstract: Original Research Article This study was carried out to evaluate the effect of feed supplementation by Moringa oleifera leaf meal (MOLM) on quail growth performances. For this purpose, 192 quails of 21 days old were divided into 12 batches of 8 males and 8 females. 0, 1, 2, or 3% of MOLM was added to the feed corresponding to treatments T0, T1, T2 and T3 respectively. Each of them was randomly assigned to 3 batches. Data were collected on growth parameters. At the 4 th weeks of the trial, 2 males, 2 females per batch were sacrificed to evaluate carcass and some internal organs characteristics. The main results showed that regardless of sex, the significantly higher (224.13±30.69g) live weight was obtained with 2% of MOLM compared to the control (203.83±16.67g). The significantly higher (4.74±0.93) feed conversion ratio was obtained with the T3 treatment compared to T2 (4.24±0.80g). Carcass yield of males ranged from 70 (T2) to 73% (T3) and from 67 (T2) to 69% (T0) in females. Only whole carcass yield, relative weights of the wishbones, neck and gizzard were significantly affected by MOLM. It has been concluded that MOLM can be used up to 3% to improve growth performance of quail.
3 citations
19 Jun 2020
TL;DR: It was concluded that maize bran can be used up to 50% as a substitute for wheat bran in the diet of quails in the growing and early laying phases.
Abstract: Original Research Article The present study was conducted in order to evaluate the effect of the substitution of wheat bran by maize bran on quail production performances. For this purpose, 240 day-old unsexed quails of similar body weight (6.86±0.68g) were divided into 15 batches of 16 birds. 5 experimental diets (T0, T1, T2, T3 and T4) were formulated on the basis of the level (0, 25, 50, 75 and 100% respectively) of substitution of wheat bran by maize bran and each was randomly distributed to 3 batches in a completely randomized design with 5 treatments repeated 3 times each. At 7 weeks of age, 3 males and 3 females per batch were sacrificed for carcass analysis, data were collected on growth performances, carcass characteristics, and some reproductive characteristics. The main results showed that regardless of sex, the feed intake of the control treatment T0 (845.72±18.18g), was significantly higher than the values of treatments T2 (731.16±4.93g) and T4 (801.83±11.34g) but was similar to T1 (826.72±38.60g) and T3 (814.16±19.81g). In males, body weight ranged from 201.6±9.49g (T2) to 214.87±3.56g (T4) but did not differ significantly between treatments. In females, the body weight of the control batch (225.32±4.07g) was similar to the other treatments. Only the neck, gizzard, abdominal fat proportion relative to body weight were significantly affected by the substitution levels. The characteristics of testes and eggs remained broadly comparable. It was concluded that maize bran can be used up to 50% as a substitute for wheat bran in the diet of quails in the growing and early laying phases.
2 citations
01 Nov 2020
TL;DR: The objective was to evaluate the best method for the calculation of electrolyte balance for Japanese quails using the EB and TEB calculation and the different TEB were able to influence the performance and quality of japanese quail eggs.
Abstract: The objective was to evaluate the best method for the calculation of electrolyte balance for Japanese quails using the EB and TEB calculation. 240 Japanese quails were used, during the 25 to 85 days of life, with 5 treatments, where these with the same value of BE 250 μeq kg-1 and TEB having 750, 1000, 1250, 1500 and 1750 μeq kg-1, 8 replicates and 6 birds per experimental unit. Performance parameters and egg quality were analyzed. The different TEB were able to influence the performance and quality of japanese quail eggs.
2 citations
01 Jan 2020
TL;DR: It has been concluded that MOLM could be used as diet supplement during laying phase up to 3% for egg production and 1% of substitution seem to be the most appropriate to increase eggs laying rate while 2% is suitable to obtain heavy eggs in the soudano-guinean agro ecological zone of Cameroon.
Abstract: Abstract In order to evaluate the effect of diet supplementation with Moringa oleifera leaf meal (MOLM) on growth and laying performances of quail in soudano-guinean zone of Cameroon, a study has been conducted in Ngaoundéré from May to September 2018. For this purpose, a total of 168 seven weeks old quails were divided into 12 comparable batches of 10 females and 4 males. Each of the four experimental diets (T0, T1, T2 and T3), formulated on the basis of the level (0, 1, 2, and 3% respectively) of diet supplementation with MOLM was randomly assigned to 03 batches in a completely randomized. Data were collected during the 16 weeks of the study on feed intake (FI), body weight (BW), body weight gain and feed conversion ratio. Weekly, after total laid eggs evaluation, 40 eggs per treatment was randomly chosen, weighed and measured. Main findings revealed that FI was not significantly affected by the diet supplementation with MOLM. Significantly higher BW and BW gain was recorded in T1 treatment compared to others treatments while they remains similar between them. The relatively heavier eggs were noted in T2 treatment while the highest (88.57 ± 2.85%) weekly laying rate was recorded with 1% supplementation. It has then been concluded that MOLM could be used as diet supplement during laying phase up to 3% for egg production and 1% of substitution seem to be the most appropriate to increase eggs laying rate while 2% is suitable to obtain heavy eggs in the soudano-guinean agro ecological zone of Cameroon.
1 citations
TL;DR: The inclusion of BR from the first day of life provided better economic viability, and diets with a maximum inclusion of 50% BR can be formulated for meat quail at any age.
Abstract: . The aim of this study was to evaluate the inclusion of 50% broken rice (BR) in diets for meat quail from 1 to 35 days old, starting at different ages. A total of 875 mixed quail were allocated to five treatments in a completely randomized design with five replicates of 35 birds. The treatments consisted of a maize- and soybean meal-based control diet and four other similar diets in which the inclusion of 50% BR was started at different ages, namely, 1st, 8th, 15th and 22nd days. Feed intake, weight gain, feed conversion and mortality rate were evaluated weekly. At 35 days, 10 quail per plot were weighed and selected to be slaughtered for evaluations of live weight, carcass yield and gizzard yield. Lastly, a study of economic viability was carried out. No significant difference (p > 0.05) was detected for the performance parameters, live weight or carcass yield, but a higher gizzard yield was found (p < 0.05) in the treatment without BR. The inclusion of BR from the first day of life provided better economic viability. Diets with a maximum inclusion of 50% BR can be formulated for meat quail at any age.
TL;DR: Results point to several similarities in the development of ventilatory chemorflexes between Coturnix quail and newborn mammals, including age-dependent increases in the HVR, transitions from a biphasic to a sustained H VR, and decreases in the HCVR.
TL;DR: Up to 8% raw pinto beans may be added in diets for Japanese quail in the laying phase without compromising their performance or internal-external egg quality.
Abstract: . The aim of this study was to evaluate levels of inclusion of pinto beans in diets for quail in the laying phase on their performance and egg quality. A total of 280 Japanese quail in the laying phase were distributed into five treatments in a completely randomized design with eight replicates and seven birds per plot. Treatments consisted of five levels (0, 2, 4, 6, and 8%) of inclusion of pinto beans in the diets, which remained isoenergetic and isoproteic. The experiment began with the quail at 70 days of age and lasted 63 days, with their performance assessed every 21 days and egg-quality parameters on the last two days of each cycle. The following parameters were evaluated: final weight, feed intake, egg-laying rate, feed conversion (per dozen eggs and per egg mass), egg weight, eggshell thickness, specific gravity, yolk color, and weights of shell, yolk, and albumen. No difference was detected between the bean inclusion levels for any of the performance and egg-quality traits assessed or the birds' final weight. In conclusion, up to 8% raw pinto beans may be added in diets for Japanese quail in the laying phase without compromising their performance or internal-external egg quality.