Aesthetically Appreciating Animals: On The Abundant Herds

This is an essay in appreciation of The Abundant Herds, a study of the amaZulu’s naming practices for their Nguni cattle. The book reveals an aesthetic vision in which contemplative and practical attention are intertwined and a complex classificatory system does not undermine an appreciation of the individuality of the cattle. The book and the practices it celebrates permit a richer account of the beauty of farm animals to the standard functionalist approach.

Short Communication: A Within- and Across-country Assessment of the Genomic Diversity and Autozygosity of South African and Eswatini Nguni Cattle

In southern Africa, the Nguni cattle breed is classified as an indigenous and transboundary animal genetic resource that manifests unique adaptation abilities across distinct agroecological zones. The genetic integrity of various ecotypes is under potential threat due to both indiscriminate crossbreeding and uncontrolled inbreeding. The aim of this study was to assess the genetic diversity and autozygosity that exists both across countries (ES: eSwatini; SA: South Africa) and within-country (SA), between purebred stud animals (SA-S) and research herds (SA-R). Subsets of 96 ES, 96 SA-S and 96 SA-R genotyped for 40 930 common SNPs were used to study inbreeding, runs of homozygosity (ROH) and heterozygosity (ROHet) profiles as well as population structure. The highest proportion (0.513) of the 3 595 ROH was <4Mb in length, while the majority (0.560) of the 4 409 ROHet segments fell within the 0.5-1Mb length category. Inbreeding coefficients indicated low inbreeding (FROH range: 0.025 for SA-S to 0.029 for SA-R). Principal component (PCA) and population structure (K=5) analyses illustrated genomic distinctiveness between SA and ES populations, greater admixture for SA-R (mean±standard deviation proportion shared=0.631±0.353) compared to SA-S (mean±standard deviation proportion shared=0.741±0.123), and three subpopulations for ES. Overall, results illustrated that genetic distinctiveness in the Nguni resulted from both geographic isolation and exposure to different production strategies. Although no impending threat to genetic diversity was observed, further loss should be monitored to prevent endangerment of unique and beneficial indigenous resources.

A gross margin analysis for Nguni cattle farmers in Limpopo Province, South Africa

Factors such as increases in population, urbanization, growth in per capita income and changes in consumer taste and preferences are causing gradual increases in livestock product consumption and demand. South Africa is addressing this predicted increase in livestock products demand by commercializing smallholder livestock producers. The Limpopo Industrial Development Corporation (IDC) Nguni Cattle Development Project is an example of such effort. The economic performance of these efforts needs to be evaluated. We use gross margin analysis to evaluate the performance of the Limpopo IDC Nguni Cattle Development Project. Additionally, we use regression analysis to identify factors influencing gross margins. Our results indicate that although smallholders show potential to commercialize, they lack commercial farming experience and require that a strong extension support system be used as one of the strategies to improve profitability. We also noted that individual farmers were more profitable than group farmers. Multiple regression analysis shows that three variables could be used to stimulate gross margin among the Limpopo IDC Nguni Cattle Development Project farmers. These are herd size, distance to market and farm size. Since farm size is a given, policy should focus on assisting farmers to build their herds and to have better access to markets.

Herd dynamics, production and marketing constraints in the commercialization of cattle across Nguni Cattle Project beneficiaries in Eastern Cape, South Africa

This paper examines the challenges restricting the commercialization of cattle across Nguni Cattle Project beneficiaries in South Africa. Data were collected from one hundred and twenty (120) Nguni cattle beneficiaries using a structured questionnaire across six district municipalities of the Eastern Cape Province. Results revealed that majority of Nguni cattle beneficiaries were males, were above 60 years old, and have received formal training in livestock farming. Most of the beneficiaries reared cattle with other livestock species, with 45% owned non-descript breeds, 33% Nguni and 22% other breeds such as Bonsmara and Brahman. About 79.2% of the beneficiaries practised continuous grazing while 52.5% give their cattle supplements, with most commonly (48%) using rivers as the source of water. Most beneficiaries (38.4%) reported diseases as main production constraints, followed by stock theft (27.5%) and feed shortages (22.5%). Furthermore, results showed that 80.8% of beneficiaries market one to 10 cattle per year, 64.8% adult cattle (2+ years old) and 35.2% weaners (8 months to 1 year). Most beneficiaries (78.7%) used private marketing channels to sell their animals, while 4.3% used abattoirs. Factors identified as the main market constraints included low cattle numbers (41.7%), inability to meet formal market standards (25%) and inadequate government support. There was a strong association between formal livestock training and cattle marketing attributes as well as production constraints. In conclusion, more emphasis should be given to improve cattle production and commercialization through provision of more cattle, livestock trainings and market services to communal farmers.

Phytochemical Constituents and Antioxidant Activity of Sweet Basil (Ocimum basilicum L.) Essential Oil on Ground Beef from Boran and Nguni Cattle

The global meat industry is characterised by a growing interest in natural preservative additives. This study determined the effect of sweet basil (Ocimum basilicum L.) essential oil (SBEO) on colour and lipid oxidation in minced beef. The phytoconstituents of SBEO were analyzed by gas chromatography mass spectrometry. Thereafter, minced beef samples from Nguni and Boran cattle were treated with either no additives (control, C) or SBEO added at 2% (SB2), 4% (SB4), or 6% (SB6). The meat samples were aerobically packaged and stored (4 ± 1°C) for seven days for measurement of lightness (L⁎), redness (a⁎), yellowness (b⁎), hue, chroma, and lipid oxidation (acid-reactive substances, TBARS) on days 0, 4, and 7. Thirty-two bioactive compounds with reported antioxidant and antimicrobial and activities were identified in SBEO, including Estragole (41.40%), 1, 6-Octadien-3-ol, 3,7-dimethyl (29.49%), and trans-.alpha.-Bergamotene (5.32%). On days 0, 4, and 7, SB2, SB4, and SB6 had higher (P < 0.05) L⁎, a⁎, b⁎, hue, and chroma values; and on days 0 and 4 TBARS were lower (P < 0.05) in SB2 and SB4 than C and SB6. The addition of 2% and 4% SBEO improved colour and lipid oxidative stability, demonstrating potential for its use as a natural antioxidant additive in meat.

Effect of shredded Colophospermum mopane wood inclusion as roughage on the performance of fattening Nguni cattle

A study was conducted to determine the effect of shredded Colophospermum (C.) mopane wood inclusion as roughage on the performance of fattening Nguni heifers. The heifers were randomly allocated to four diets with different shredded C. mopane wood inclusion levels (5, 8.5, 10 and 15%) in a completely randomized design. Shredded C. mopane wood inclusion level had effect (P less than 0.05) on intake and feed conversion ratio (FCR). Diet intakes per metabolic weight and FCR of Nguni heifers were optimised at different shredded C. mopane wood inclusion levels. However, shredded C. mopane wood inclusion levels did not affect (P greater than 0.05) diet in vitro digestibility, carcass weight, dressing percentage, meat pH, meat shear force values and meat colour intensities except for red colour intensity of rump steak. It was, thus, concluded that shredded C. mopane wood can be used as roughage without adversely affecting diet intake, FCR, and live weight of Nguni heifers.