Feeding dairy cattle in East Africa

This book contains 9 chapters that discuss the nutrient requirements of dairy cows; pasture management; forage production and utilization; supplements and additives; feeding calves, heifers and cows; ration formulation; the effect of feeding on milk quality; nutritional diseases and constraints. The book contains tables and coloured illustrations and photographs for each topic. It will serve as a source of information to dairy farmers.

Feeding dairy cattle in East Africa.

This book contains 9 chapters that discuss the nutrient requirements of dairy cows; pasture management; forage production and utilization; supplements and additives; feeding calves, heifers and cows; ration formulation; the effect of feeding on milk quality; nutritional diseases and constraints. The book contains tables and coloured illustrations and photographs for each topic. It will serve as a source of information to dairy farmers.

There is limited field-based research and recommendations on the effect of cattle feeding management practices on smallholder dairy farms (SDF) for the growing dairy industry in Kenya. This controlled trial aimed to determine the effect of feeding locally

Two experiments were conducted to assess the nutrient intake, weight gain (ADG) and rumen degradation of napier grass (NG), lucerne (L) and sweet potato vines (SPV) fed to growing dairy heifers. In the first experiment, 33 Friesian heifers were randomly allocated to the three treatments namely; napier grass, lucerne and sweet potato vines which were fed for 104 days. In the second experiment, degradability of the three diets was estimated using nylon bags incubated in two rumen fistulated steers.

Randomized controlled trial on impacts of dairy meal feeding interventions on early lactation milk production in smallholder dairy farms of central Kenya

There is limited field-based research and recommendations on the effect of cattle feeding management practices on smallholder dairy farms (SDF) for the growing dairy industry in Kenya. This controlled trial aimed to determine the effect of feeding locally produced dairy meal (DM) on early lactation daily milk production (DMP) on Kenyan SDF, controlling for other factors associated with DMP.

Enhancing output oriented livestock improvement strategies in drylands of Kenya

Farmers in the drylands practice mixed crop and livestock production systems. Both production systems have mutual relationships and understanding of target outputs in each system is important. With increasing demand for livestock products, livestock production is expected to be the major driving enterprise during a predicted food revolution. Targeting the most valued livestock species and the premium products or services from that species will improve the farmers' interest and adoption of recommended technologies.

Reproductive traits and milk yield relationship of the Kenya sahiwal cattle

Records of the Kenya Sahiwal Stud were analysed with regard to factors affecting reproductive traits and milk yield in temales born in the period 1963 through 1983. Genetic parameters and the relationship among the traits were studied. Two data sets were analysed: one with 2238 heifer records, and the other with 3518 heifer and cow records.

Analysis of early survival of Holstein-Friesian heifers of diverse sire origins on commercial dairy farms in Kenya.

The use of imported semen within the Holstein-Friesian cattle population in Kenya has contributed to increased milk production per cow, however, information on how this has impacted on functional traits, particularly early life survival and reproductive performance is scarce. This study evaluated age at first calving (AFC), survival to age at first calving, and survival to four years of age using survival analyses techniques, in Holstein-Friesian cattle on four dairy farms in Kenya. The heritability estimate obtained for AFC was 0.15 +/- 0.06 for an average AFC of 1058 days.

Shade management in subtropical environment for milk yield and composition in Holstein and Jersey cows

Forty-eight cows were assigned randomly to shade (15 Holsteins, 8 Jerseys) or no shade (16 Holsteins, 9 Jerseys) for 102 days beginning 12 June 1977 to examine effects of solar heat load on milk yield and composition. Rectal temperatures, respiration rates, and rumen contractions/min were monitored between 1200 and 1700 h on 20 randomly selected days. Morning and evening milk weights were recorded daily. Once weekly, morning and evening milk samples were collected from each cow and analyzed for fat, protein, acidity, freezing point depression, and somatic cell number.

Occurrence of high udder infection rates in dairy cows in Ungunja Island of Zanzibar, Tanzania

A 2-week screening was performed in small holder dairy farms in 4 districts of Ungunja Island of Zanzibar in August and September 2002. A total of 128 cows from 49 farms were screened for mastitis using the California Mastitis Test (CMT). Of the dairy cows screened, 63% (80 of 128) were dairy breeds such as Friesian, Jersey, Guernsey, and Ayrshire or their crosses, and 37% (48 of 128) were crosses with the local Zebu cattle. The 128 cows had a total of 506 functional quarters, with six cows having lost one quarter each from either past mastitis or teat obstruction.

The effect of feeding diets containing intact or partially detoxified lupin on voluntary intake and milk production by Friesian dairy cows

The study determined the effects of partial removal of alkaloids (detoxification) ill crushed lupin seed (CLS) 011 voluntary food intake, and yield and composition of milk from dairy cattle. Twenty multiparous Friesian dairy cows (first 90 days of lactation) were assigned. according to a randomized complete-block design, to five diets. The diets were formulated to be isoniirogenous (25·6 g N per kg of diet dry matter (OM)) and contained napier grnss, lucerne hay, mai:e bran and urea.

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