Chenaimoyo LF Katiyatiya

Pre-slaughter practices, pork physicochemical quality, and fatty acid (FA) composition of 36 Landrace barrows aged six months, sourced from five smallholder urban farms (SUFs) in low-income, high-density suburbs and one commercial abattoir in Cape Metropole District, South Africa were evaluated. Pigs on SUFs were fed three diets: (1) kitchen-bakery...

Background and Aims Hypertension continues to be a significant health challenge, contributing to numerous deaths. Dietary factors are key risk factors for hypertension. Evidence indicates that consuming at least four different types of protein each week may help reduce the risk of developing high blood pressure. This study aims to analyze the impac...

Understanding the drivers of farmers’ challenges and adoption of sustainable agricultural practices (SAPs) is crucial for the sustainable development of the small-scale urban pig enterprise in sub-Saharan Africa. A total of 160 structured questionnaires were individually administered to determine factors driving small-scale farmers’ challenges and...

This study evaluated the factors influencing the purchasing behaviour and pork quality preferences of 211 consumers in the Cape Metropole District, South Africa. Two-thirds of the participants bought cooked pork from the informal street markets because of affordability (36%), convenience (34%), and price (41%). Most consumers preferred grilled (87%...

Purpose Realities of food insecurity are more pronounced with a specific focus on women in developing countries. The need to understand the varied food insecurity experiences among female-headed agricultural households in such contexts provided the rationale and motivation for this study. Design/methodology/approach The study employed a quantitati...

Globally, the price of soybean meal, the most common proteinaceous ingredient in livestock diets, has become highly expensive prompting a search for alternative ingredients. Hemp seed cake is a promising alternative but could be limited by its high neutral detergent fiber and ether extract contents which impede nutrient intake and digestibility. Ho...

Context Globally, sheep productivity is constrained by scarcity of high-quality feed and haemonchosis. These challenges may simultaneously be addressed by valorisation of nutraceutical forage legumes such as sericea lespedeza (SL) into sheep diets. Aim The current study determined the effects of feeding diets containing increasing inclusion levels...

Hempseeds are rich in bioactive phytochemicals, yet little is known about their bioavailability in tissues and excreta of animals fed hemp seed cake. The study evaluated the bioactive phytochemicals and their antioxidant activity in the blood, liver, meat, feces, and urine from goats fed finishing diets containing graded inclusions of hempseed cake...

Pork in the informal market significantly contributes to food, nutrition and income security in low-income countries' urban areas but is a safety concern to value chain actors and public authorities due to potential contamination by pathogens. To evaluate the physicochemical quality, microbial and oxidative profiles of pork sold from the informal u...

Wether goats (n = 7) were fed finishing diets containing either 0, 25, 50, 75 or 100 g/kg DM of hempseed cake (HSC) substituting soybean meal to evaluate chevon fatty acid, volatile and oxidative profiles. Feeding HSC diets linearly decreased (P < 0.05) chevon c9-16:1, 16:0, total saturated FA (SFA) and protein oxidation but linearly increased (P <...

Five diets containing Acacia mearnsii leaf-meal (AMLM; 0, 50, 100, 150 and 200 g/kg DM) substituted for Triticum aestivum bran were fed to lambs for 42 days. The effect of diet and retail display period on meat fatty acid (FA) composition (day 1); colour, antioxidant activity, myoglobin and lipid oxidation (day 1, 3, 5, 7 and 9); protein oxidation...

Hempseeds are rich in bioactive phytochemicals, yet little is known about their bioavailability in tissues and excreta of animals fed hemp seed cake. The study evaluated the bioactive phytochemicals and their antioxidant activity in blood, liver, meat, feces and urine from goats fed finishing diets containing graded inclusions of hempseed cake (HSC...

Context The scarcity of water and feed for sheep is a characteristic feature in the dryland areas of South Africa, and adversely affects meat production and quality. To address this challenge, breeds with high water, feed and production efficiencies must be used to produce meat of desirable quality. Aim The study aimed to compare physicochemical,...

The study evaluated the effects of feeding incremental levels of sericea lespedeza (SL; 0, 62.5, 125, 187.5 and 250 g/kg diet) substituted for lucerne on meat production, quality, and oxidative shelf-life of feedlot lambs infected or non-infected with Haemonchus contortus. There were no diet × infection status, and diet × retail display period effe...

The study evaluated the effects of substituting increasing levels of Acacia mearnsii leaf-meal (AMLM) for Triticum aestivum bran in lamb finishing diets on growth, carcass, and meat quality attributes. Forty, 3-months-old lambs with an average live weight of 25.7 ± 1.60 kg were allocated to one of the five dietary inclusion levels of AMLM (0, 50, 1...

The study compared water intake, balance and efficiency, nutrient intake, digestibility and utilisation, growth performance, carcass attributes and income over feed costs for six South African sheep breeds; Pedi, Damara, Meatmaster, Dorper, Dohne Merino and Merino. Wether lambs (4–5 mo) were adapted to a pelleted total mixed diet containing 143.5 g...

Drought is an inevitable feature of South Africa's climate. Its slow onset and recurrence threaten livelihoods dependent on agriculture. Responses to drought have mostly been ex-post impact management with little ex-ante resilience building in vulnerable areas. Implementation of ex-ante strategies has been severely challenged by lack of skilled hum...

The winery industry produces at least 14.5 million tonnes of solid residues annually, mainly grape (Vitis vinifera) pomace (GP, 20–30% of processed grapes), stalks (2–8%), and wine lees (2–6% of the wine produced). Overall, winery waste management has been linear through landfilling, incineration, and composting with adverse financial, humanitarian...

Citrus is among the most widely cultivated fruits in Mediterranean regions. Primary processing of citrus fruits generates about 20 million tonnes of biowastes every year with seed, peel, and pulp accounting for 50–70% of fruit weight. Citrus biowastes (CBW) are economical and natural sources of fibers, sugars, minerals, vitamins, essential oils, li...

A 42-d study was conducted to evaluate the effects of replacing soybean meal with increasing levels of hempseed cake (HSC) in goat finishing diets on growth performance, carcass and chevon quality attributes. Thirty-five, 3-month-old Kalahari Red wethers (25 ± 1.5 kg initial body weight) were randomly allocated to one of five dietary treatments wit...

Seasonality and species are key aspects of the abiotic and biotic environment, respectively, that influence nutrient, phytochemical and antioxidant profiles of invasive alien plants leaf-meals. The current study investigated the effects of season on nutrient, amino acid, fatty acid, mineral , bioactive polyphenolic composition and antioxidant activ...

The rising global demand for meat coupled with increased losses and wastes in the meat supply chain, consumer sophistication and climate change has prompted the search for novel, non-conventional feed resources that can simultaneously improve animal health, production, and meat quality and reduce emission of greenhouse gases (GHG). Among prospectiv...

Water scarcity is among key the challenges facing sheep production in the arid and semiarid areas, and is predicted to worsen in future. Despite sheep in dry areas being capable of surviving relatively long periods with little water, deficiency of this essential nutrient produces lightweight carcasses and dark, dry and less tender meat. Responses t...

The discourse regarding plant-based preservatives for food application has generally revolved around extracts from commercial fruits, vegetables, herbs and spices with indigenous fruits (IFs) on the periphery, with little investment into their valorisation. While being important food sources at community level, IFs and their byproducts are also inc...

Small ruminants significantly contribute towards livelihood, food and nutrition security for people living in semiarid low-to-middle-income countries. However, their productivity is largely constrained by feed shortages, prevalence of gastrointestinal nematodes (GIN) and postharvest meat losses. The current review explores the possibility of using...

Plant by-products obtained from agro-industrial processes require valorisation to demonstrate their potential for enhancing animal health, meat production, and shelf life extension. One example is the fast-growing hemp industry, which produces seeds, leaves, seed oil, and cake. Studies on the nutritional value of hempseed cake have shown it can be...

Breed, age, coat colour, month and temperature humidity index (THI) influence on weight (BW), body condition score (BCS), thermophysiological variables (rectal temperature (Tr), skin temperature (Tsk)) and hair length was studied in Nguni (n = 19) and Boran (n = 16). As a result of this study, breed influenced BW, BCS and Tsk on the neck and belly...

Boran (n = 15) and Nguni (n = 15) cows were used in a study to determine the effect of breed, age and coat colour on the concentration of heat shock protein 90 (HSP90AB1), physiological rectal and skin temperature, and markers of health. The cows were exposed to summer heat stress and Boran cows had higher significant (P<0.05) skin temperature (35....

Abstract The objective of the study was to assess the physico-chemical pork quality attributes and fatty acid profiles of indigenous Windsnyer (WS) and Large White (LW) gilts. Twelve gilts of each breed were fed on similar commercial diets from weaning until slaughter at the age of 21 weeks. The m. longissimus thoracis et lumborum was sampled. Musc...

The objective of this study was to determine the perceptions and knowledge of farmers of heat stress and tick resistance in cattle. A cross-sectional survey was conducted and 110 farmers in four villages in the sour and sweet velds of the Eastern Cape Province, South Africa were interviewed. The associations among area (municipality), gender, age,...

Seasonal variations in hair length, tick loads, cortisol levels, haematological parameters (HP) and temperature humidity index (THI) in Nguni cows of different colours raised in two low-input farms, and a commercial stud was determined. The sites were chosen based on their production systems, climatic characteristics and geographical locations. Zaz...