Effects of layer breeder age and reduced incubator oxygen concentrations on embryo development, hatching events, chick quality, embryonic mortality and hatchability of fertile eggs.

The combined effects of breeder age and oxygen (O) concentrations on embryo development, hatching events, chick quality, embryonic mortality and hatchability were investigated. A total of 900 hatching eggs of average weight of 53.85 ± 2.

In ovo toxico-pathological effects of medicinal plants used against coccidiosis on chicken embryos development and hatchability.

TOXICO-pathological effects of herbal plants have always been a major concern, but little information is provided on the toxico-pathological effects of medicinal plants used against coccidiosis. This study aimed to assess the histopathological effects of Carica papaya seeds (CPS), Azadirachta indica leaves (AIL), and Sarcocephalus latifolius root (SLR) used as coccidiostat in traditional poultry farms with various doses using the chick embryo model. A total of 420 Sasso breeder eggs at ED4 of incubation were inoculated with the extract of these plants following a 3×4 factorial design with 3 plant extracts (CPS, AIL and SLR) and 4 inoculation doses (0, 25, 50 and 100 mg/kg egg-weight).

Evaluation of d 18 in ovo administration of soursop (Annona muricata) leaf extract into the air space on hatch performance and physiology of Noiler chicks.

Efficient poultry production can be accomplished using combined technologies. A combination of in ovo and ethno-veterinary technologies can deliver significant benefits, including reduced labour and production costs. This study evaluated the effect of in ovo administration of soursop leaf extract (SLE) on the hatching performance and physiology of Noiler chicks.

The Anticoccidial In Vitro Effects and Antioxidant Properties of Several Plants Traditionally Used for Coccidiosis in Togo.

Coccidiosis is a parasitic disease that often affects livestock. Identifying plants with inhibitory effects on the development of the parasite could help in finding new natural treatments. This study aimed to evaluate the anticoccidial potentials of extracts from leaves (AILs), leaves (CMLs), seeds (CPSs), roots (SLRs), and leaves (VALs).

Climate change and broiler production.

Climate change has emerged as a significant occurrence that adversely affects broiler production, especially in tropical climates. Broiler chickens, bred for rapid growth and high meat production, rely heavily on optimal environmental conditions to achieve their genetic potential. However, climate change disrupts these conditions and poses numerous challenges for broiler production.

Effect of crossbreeding on egg quality, incubation, and hatching activities of the pure and reciprocal cross between the Sasso and Wassache chickens.

Understanding the effect of crossbreeding on egg quality and incubation is essential for the selection of superior genetic combinations in breeding programs. This study evaluated the effect of crossbreeding on egg quality and incubation activities of the Sasso and Wassache chickens in a pure (Sasso X Sasso [SS]; Wassache X Wassache [WW]) and reciprocal cross (Wassache X Sasso [WS]; Sasso X Wassache [SW]) design. A total of 1431 eggs were incubated while 400 eggs were selected for egg quality.

Prebiotic effects of and on slow growing broiler chickens (SASSO).

1: The study aim was to evaluate the prebiotic effects of and used on slow growing broiler chickens.

2: Three hundred and sixty (360) slow-growing chicks of four weeks of age and similar weight were selected and divided into four (04) treatments (Positive Control, Negative Control, 2 % and 2 % ) of 6 replicates with, fifteen (15) chicks per replicate, which made ninety (90) chicks per treatment.

3: At 12 week age, blood sample and cecal content were taken from 6 chickens per treatment to determine heamatological profile and fermentation parameters (Short Chain Fatty Acid).

Alleviating heat stress effects in poultry: updates on methods and mechanisms of actions.

Heat stress is a threat that can lead to significant financial losses in the production of poultry in the world's tropical and arid regions. The degree of heat stress (mild, moderate, severe) experienced by poultry depends mainly on thermal radiation, humidity, the animal's thermoregulatory ability, metabolic rate, age, intensity, and duration of the heat stress. Contemporary commercial broiler chickens have a rapid metabolism, which makes them produce higher heat and be prone to heat stress.

Naked neck gene and intermittent thermal manipulations during embryogenesis improve posthatch performance and thermotolerance in slow-growing chickens under tropical climates.

Many studies have shown that thermal manipulations during the incubation (TMI) and naked neck gene (Na) positively affect heat-stressed broilers' thermotolerance, hatching process, and posthatch performance. Their combination could increase the beneficial effect on broilers reared under natural tropical climatic conditions. The aim of this study was to investigate the effects of the Na gene and TMI on hatching and posthatch performance of slow-growing broilers under tropical climates.

Influence of age at slaughter and sex on carcass characteristics and technological and sensory quality of Goliath chicken meat.

Background And Aim: The Goliath chicken is a slow-growing chicken with a high slaughter weight but whose carcass characteristics and meat quality have not yet been documented. This study aimed to evaluate the effect of age at slaughter and sex on the carcass characteristics and technological and sensory meat quality of Goliath chickens raised in southern Benin.

Materials And Methods: Data on the carcass characteristics and technological and sensory quality of meat were collected from 80 chickens raised in confinement and divided into two groups.

Impact of palm kernel cake with or without multi-blend enzyme on the growth performance and carcass traits of Sasso broilers.

Non-conventional feeds help alleviate competition faced by the poultry industry as the prices of conventional poultry feed ingredients, are continually increasing. Thus, the objective of this study was to evaluate the effect of palm kernel cake (PKC) on the performance of Sasso X44 broiler chicks. Four hundred and fifty (450) unsexed 21-day-old broiler chicks of homogenous weight were randomly allocated to five dietary treatments in a completely randomized design with six replicates having 15 birds per replicate.

Use of Manihot esculenta leaves on physiological and production parameters of Sasso breeder hens.

Background: The world population is increasing, leading to competition between humans and animals for the use of farm produce. The use of non-conventional resources in poultry feed is increasingly being explored. Cassava (Manihot esculenta) have been studied in layers and broilers feed.

Assessment of the Teratogenic Effect of Sulfadoxine-Pyrimethamine on the Chicken Embryo.

Background: The sulfadoxine-pyrimethamine combination is a product used in the intermittent preventive treatment (IPT) of malaria in pregnant women in our country. To date, there is very little data on the teratogenic effect of this product. This study proposed to evaluate the teratogenic effect of sulfadoxine-pyrimethamine on chicken embryos.

Genetic diversity of indigenous guinea fowl () using microsatellite markers in northern Togo.

Indigenous guinea fowl is an important animal resource for improving rural household income. In order to provide molecular data for a sustainable management of this poultry resource, an assessment of the genetic diversity and phylogenic relationships was undertaken on seven guinea fowl phenotypes from two agroecological zones (Dry Savannah and Atakora) of Togo. Genotyping was carried out using 18 microsatellite markers on 94 individuals from Dry Savannah (59) and Atakora (35) zones.

Health Risk Assessment of Heavy Metal Accumulation in Broiler Chickens and Heavy Metal Removal in Drinking Water using Seeds in Lomé, Togo.

Background: Heavy metals are persistent in the environment and can cause bioaccumulation in the food chain. Drinking water contamination by heavy metals can pose a risk to poultry and to human health. The need for affordable, reliable and effective methods of water treatment has led to the use of plants materials, including coagulants such as seeds, to ensure poultry products are safe for consumers.

Broiler production challenges in the tropics: A review.

Under tropical climate, broiler production is encumbered by several constraints which make it difficult for them to attain their genetic potential. The scarcity and high price of poultry feed and veterinary services and the harsh environmental conditions with respect to thermal stress are some of the challenges that hinder optimal growth of the birds. Limited availability of feedstuffs, including crucial feed ingredients like maize and oil seedcakes, is an important challenge to the sector, since feed still represents a major cost of producing broiler chickens.

Characteristics of indigenous guinea fowl (Numida meleagris) family poultry production in northern Togo.

A survey was conducted in Dry Savannah and Atakora agroecological zones in northern Togo, between March and July 2018, to characterise indigenous guinea fowl management practices. A semi-structured questionnaire was administered to 82 farmers in 28 villages. The data were analysed using the chi-square test or Fisher's exact test, independent-sample t test and the multiple correspondence analysis with SPSS and XLSTAT.

Use of Moringa oleifera leaves in broiler production chain. 1 - Effect on Sasso breeder hens performances, internal quality of hatching eggs and serum lipids.

An experiment was conducted to determine the effect of Moringa oleifera leaves (MOL) on breeder hen performance, hatching egg quality and blood parameters. A total of 180 Sasso broiler breeder hens were used for the study. They were allotted to two groups each containing 3 replicates of 30 hens of 18 weeks of age.

Effect of delayed feed access on production and blood parameters of layer-type chicks.

A total of 684 Hisex Brown day-old chicks were studied. The chicks were randomly assigned into three groups as follows: (1) chicks with immediate feed access; (2) chicks with 48 h delay in feed access, and (3) chicks with 72 h delay in feed access. For each group, chicks were assigned into 4 replications of 57 birds each.