Volume 20, Issue 10, 2013
The Dairy Mail - Volume 20, Issue 10, October 2013
Volume 20, Issue 10, October 2013
Outeniqua Research Farm - 60 Years of Excellence : supplement
Source: The Dairy Mail 20, pp 1 –8 (2013)
Outeniqua Research Farm - 60 Years of Excellence
Die toekoms lyk blink
The message from most of speakers at the recent very successful annual general meeting and congress of the MPO in Port Elizabeth was optimistic about the future of the South African dairy industry. According to renowned agricultural economist, Ernst Janovsky, the growing population in South Africa and the rest of the continent will accelerate the demand for food. Dr Theo de Jager, vice-president of Agri SA, addressed delegates on opportunities to expand their agricultural businesses to the rest of the continent.
Die boodskap van die meeste sprekers by die onlangse suksesvolle algemene jaarvergadering en kongres van die MPO in Port Elizabeth was optimisties oor die toekoms van die Suid-Afrikaanse suiwelbedryf. Bekende landbou-ekonoom Ernst Janovsky het benadruk dat die groeiende bevolking die vraag na voedsel sal versnel. Dr Theo de Jager, vise-president van Agri SA, het kongresgangers toegespreek oor geleenthede vir uitbreiding van hulle landboubesighede na die res van die kontinent.
Die lente is hier, die somer kom! : redakteursbrief
Die somer is op pad! En ek kan nie wag om my truie en serpe en warm kouse weg te pak nie! Ek is 'n somerskind en ontwaak eers vanuit my winterslapie wanneer die somerson bak en temperature hier aan die 30 °C-merk begin proe.
Vooruitsigte steeds gunstig vir suiwel
Die pas gepubliseerde BFAP-basislynstudie en ander langtermynprojeksies dui op 'n meer gunstige bedeling vir die suiwelbedryf in die volgende dekade.
Dairy digits October 2013
Voerkoste in die kollig : voerkoste-indeks
Die voerkoste-indeks het ten doel om die insetkoste ten opsigte van veevoer oor tyd te meet en dan as indeks-syfer uit te beeld.
Source: The Dairy Mail 20, pp 17 –26 (2013)
The Dairy Mail is proud to announce Melt Loubser as the magazine's Newsmaker of the Year 2013. He received this accolade during the MPO national annual general meeting and gala dinner on 6 September, which took place at the Boardwalk Hotel and Conference Centre in Port Elizabeth.
Desert dairy oasis
Author Leoni Benghiat
Source: The Dairy Mail 20, pp 32 –37 (2013)
The world's largest dairy farm consists of more than 45 000 Holstein Friesian cows on 3 500 ha of land. The dairy produces 2,5 million litres of milk a day and around 900 million litres per year. At least 600 cows are milked every ten minutes - three to four times a day. And the dairy operates 24/7.
Koel koeie, minder stres
Hittestres is die melkboer se vyand en gedurende die somermaande gaan meer as 90% van Suid-Afrika se melkbeeste onder hittestres gebuk. Melkproduksie, reproduksie en melkgehalte word negatief beïnvloed en veroorsaak verliese van meer as R500 miljoen per jaar vir melkboere.
Koeie in die koelte
Met die volgende somer voor die deur kan ons reeds begin spekuleer oor die verlies aan melkproduksie en -inkomste weens hoë somertemperature. Navorsing wêreldwyd toon dat dit finansieel die moeite werd is om skadu of koelte aan koeie te voorsien. Plaaslik is dieselfde resultate gevind. 'n Studie op Elsenburg het getoon dat koeie met toegang tot 'n eenvoudige afdak meer melk produseer, laer stresvlakke ondervind en normale gedragspatrone het in vergelyking met koeie sonder enige beskutting teen die son. Daar is gevind dat die voerinname van melkkoeie afneem en waterinname toeneem sodra maksimum temperature bokant 21 °C styg. Hoewel die direkte effek van temperatuur op melkproduksie klein was, het koeie met toegang tot 'n afdak vir koelte sowat 6% meer melk geproduseer as koeie daarsonder.
How hot is too hot? : production
Source: The Dairy Mail 20, pp 48 –53 (2013)
A recent re-evaluation of the heat stress threshold indicates that it affects dairy cows earlier than previously acknowledged.
Feeding the heat : production
Source: The Dairy Mail 20, pp 55 –58 (2013)
Heat stress is the direct result of an animal's inability to dissipate enough heat to maintain homeothermy and remains a major challenge to dairymen farming in areas where ambient temperatures exceed 25 °C, which is compounded by the effects of high humidity.
Heat stress shapes future : production
Source: The Dairy Mail 20, pp 63 –65 (2013)
The South African summer is starting and temperatures will rise to 42 °C in some areas, which will negatively affect the health and growth performance of calves.
The heat is on : production
Source: The Dairy Mail 20, pp 67 –71 (2013)
Fertility is one of the first economically important traits that is affected when cows are heat stressed, especially in higher producing cows.
Gesonde uiers, gesonde koeie
Source: The Dairy Mail 20, pp 73 –77 (2013)
Hittestres is 'n toestand wat die meeste suiwelplase in Suid-Afrika vir ten minste 'n gedeelte van elke jaar ondervind en dit het 'n groot invloed op die algemene gesondheid en uiergesondheid van diere.
How important is milk yield and price in the overall profitability of a dairy farm? Both affect output. What about input costs as a main determinant? DairyCo in the UK investigates these issues regularly for their members, the most recent being 2011/2012, which can be obtained from www.dairyco.org.uk under Dairyco Milkbench+ Report 2013.
'n Passie vir melk : suksesprofiel
Source: The Dairy Mail 20, pp 84 –85 (2013)
Vir die Van Rensburgs van Avondrood Jerseys is die vraag hoekom hulle melkboere is baie maklik om te beantwoord. "Dis ons passie," sê Nico.
Scientifically cooler : technology
Source: The Dairy Mail 20, pp 88 –93 (2013)
Heat stress can strike at unexpected times, as temperature increases on hot summer days can create a warm and stuffy environment. A local weather forecast will help to prepare for an upcoming hot day but one still needs to have a plan to relieve heat stress effectively. The management of heat stress comes down to maintaining a balance between the metabolic heat production of a cow and heat loss in high ambient temperatures. Heat-stressed dairy cows give rise to a decrease in feed intake, milk production and fertility, and an increase in mastitis.