J. A. F. Rook

Q: What Schools Are Affiliated With J. A. F. Rook

J. A. F. Rook is affiliated with the following schools: University of Leeds, Imperial College London, University of Oxford, University of Wales, University of Glasgow

J. A. F. Rook's AcademicInfluence.com Rankings

J. A. F. Rook

Chemistry

#4594

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Organic Chemistry

#938

Historical Rank

chemistry Degrees

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Chemistry

J. A. F. Rook's Degrees

Bachelors Chemistry University of Oxford

Why Is J. A. F. Rook Influential?

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According to Wikipedia, John Allan Fynes Rook CBE FRSE FIB FRIC was a 20th-century British chemist connected to the British dairy industry. He was President of the British Society of Animal Production 1982/83. Life He was born on 1 May 1926 the son of Edward Fynes Rook, near Scarborough in North Yorkshire. He was educated at Scarborough High School for Boys, then studied Chemistry at the University of Wales graduating BSc in 1947. He then won an Agricultural Research Council scholarship to do further postgraduate studies.

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J. A. F. Rook's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

MANIPULATION OF RUMEN FERMENTATION (1977) (220)
The effects of intraruminal infusions of acetic, propionic and butyric acids on the yield and composition of the milk of the cow (1961) (142)
The effect of the plane of energy nutrition of the cow on the secretion in milk of the constituents of the solids-not-fat fraction and on the concentrations of certain blood-plasma constituents (1961) (92)
The Heat of Combustion of the Tissues of Cattle in Relation to their Chemical Composition (1953) (77)
The effects of a diet low in hay and high in flaked maize on milk-fat secretion and on the concentrations of certain constituents in the blood plasma of the cow (1965) (72)
Experimental magnesium deficiency in calves. I. Clinical and pathological observations. (1954) (71)
The evaluation of cattle foods and diets in terms of the ruminal concentration of volatile fatty acids I. The effects of level of intake, frequency of feeding, the ratio of hay to concentrates in the diet, and of supplementary feeds (1963) (70)
Effect of stage and number of lactation on the yield and composition of cow's milk (1965) (68)
The effect of bacterial infections of the udder on the yield and composition of cow's milk (1966) (66)
Magnesium metabolism in the dairy cow. II. Metabolism during the spring grazing season (1958) (66)
The effect of the amount and type of dietary fat on milk fat secretion in the cow (1967) (66)
Hypomagnesæmia in Dairy Cattle and its Possible Relationship to Ruminal Ammonia Production (1955) (64)
Further observations on the effects of intraruminal infusions of volatile fatty acids and of lactic acid on the yield and composition of the milk of the cow (1965) (59)
The uptake of plasma constituents by the mammary gland of the sow. (1969) (58)
Intake and digestibility of brown-midrib corn silage by lactating dairy cows. (1977) (55)
Nutritional Physiology of Farm Animals (1983) (49)
Variations with energy nutrition in the concentrations of amino acids of the blood plasma in the dairy cow (1969) (48)
Magnesium metabolism in the dairy cow. I. Metabolism on stall rations (1958) (47)
Lactose in the blood and urine of cows (1966) (46)
Consequences to the host of changes in rumen microbial activity. (1971) (46)
Magnesium in the nutrition of farm animals. (1962) (45)
The utilization of acetic, propionic and butyric acids by growing heifers (1963) (45)
Evaluation of Sunflower Meal as a Protein Supplement for Lactating Cows (1977) (43)
The concentrations of some water-soluble constituents in the milks of cows, sows, ewes and goats (1971) (42)
Magnesium metabolism in the dairy cow V. Experimental observations with a purified diet low in magnesium (1963) (39)
Silage for milk production (1982) (39)
The relationship in the cow between milk-fat secretion and ruminal volatile fatty acids (1966) (38)
Experimental magnesium deficiency in calves. II. The metabolism of calcium, magnesium and nitrogen and magnesium requirements. (1954) (37)
Section C. Dairy chemistry. The secretion of water and of water-soluble constituents in milk (1967) (35)
The relationship in the cow between the osmotic pressure of milk and of blood (1965) (35)
EFFECT IN THE COW OF INTRARUMINAL INFUSIONS OF VOLATILE FATTY ACIDS AND OF LACTIC ACID ON THE SECRETION OF THE COMPONENT FATTY ACIDS OF THE MILK FAT AND ON THE COMPOSITION OF BLOOD. (1965) (34)
The effect of incomplete milking or of an extended milking interval on the yield and composition of cow's milk (1965) (34)
Ruminal volatile fatty acid production in relation to animal production from grass (1964) (34)
Performance of Calves Fed Fermented Colostrum or Colostrum with Additives During Warm Ambient Temperatures (1976) (34)
Potassium and Lactose in Milk in Relation to the Physiology of Milk Secretion (1959) (34)
Further studies on antibiotic and copper supplements for fattening pigs (1957) (34)
Magnesium metabolism in the dairy cow IV. The availability of the magnesium in various feedingstuffs (1962) (33)
Effects of intravenous infusions of acetate, beta-hydroxybutyrate, triglyceride and other metabolites on the composition of the milk fat and blood in cows. (1965) (33)
The role of carbohydrate metabolism in the regulation of milk production (1979) (28)
PLASMA GLUCOSE AND ACETATE AND MILK SECRETION IN THE RUMINANT. (1965) (28)
The effect of the plane of energy nutrition of the cow during the late winter-feeding period on the changes in the solids-not-fat content of milk during the spring-grazing period (1960) (27)
The evaluation of cattle foods and diets in terms of the ruminal concentration of volatile fatty acids: II. Roughages and succulents (1965) (26)
Field investigations into hypomagnesaemia in dairy cattle, with particular reference to changes in the concentration of blood constituents during the early grazing period (1957) (26)
The effect of milking throughout the whole of pregnancy on the composition of cow's milk (1965) (26)
The effect of varying the interval between milkings on milk secretion (1966) (25)
Volatile fatty acid metabolism in the lactating cow, in relation to the synthesis of milk constituents (1961) (25)
A comparison of hay and silage for milk production (1963) (25)
The effect on growth rate and on milk yield and composition of finely grinding the hay and cooking (flaking) the maize in mixed diets for growing and for milking heifers (1965) (23)
Milk composition in relation to rumen metabolism (1959) (22)
Diet and milk secretion in the sow (1968) (22)
Influence of the physical form of a barley grain and barley straw diet on nitrogen metabolism in sheep (1971) (21)
Mineral composition of herbage in relation to the development of hypomagnesaemia in grazing cattle. (1960) (19)
Lipids in the Blood Plasma of Cows of the Friesian and Channel Island Breeds (1964) (18)
Experimental magnesium deficiency in the cow. (1963) (18)
The effects of intravenous infusions of insulin and of sodium succinate on milk secretion in the goat (1970) (17)
Intravenous infusion of glucose and insulin in relation to milk secretion in the sow (1977) (17)
Potassium and hypomagnesaemic tetany in calves (1960) (16)
Plasma Triglycerides and Milk-Fat Synthesis (1964) (16)
Apparatus for the determination of the energy exchange of calves and of sheep (1954) (16)
The magnesium nutrition of the dairy cow in relation to the development of hypomagnesaemia in the grazing animal (1962) (16)
The indirect determination of energy retention in farm animals: II. Studies on the validity of the method (1956) (15)
The responses in milk solids-not-fat and protein contents to improved feeding of cows receiving winter-stall diets and underfed for varying periods (1974) (15)
The indirect determination of energy retention in farm animals: I. The development of method (1956) (15)
The effect of diet and blood-plasma magnesium concentration on the endogenous faecal loss of magnesium in sheep (1979) (15)
Rapid Development of Hypomagnesæmia in Lactating Cows given Artificial Rations Low in Magnesium (1961) (15)
Magnesium metabolism in the dairy cow. III. The intake and excretion of calcium, phosphorus, sodium, potassium, water and dry matter in relation to the development of hypomagnesaemia (1962) (14)
Synthesis of milk fat from β-hydroxybutyrate and acetate in lactating goats (1974) (14)
The effect of intravenous injections of oxytocin during milking and the removal of residual milk on the composition of cow's milk (1965) (13)
Chemical composition of sunflower silage as influenced by additions of urea, dried whey and sodium hydroxide. (1980) (12)
Energy and Carbohydrate Metabolism in Magnesium-deficient Calves (1955) (11)
Ration digestibility and mineral balance in lactating cows fed rations containing dried whey. (1976) (11)
The influence of the amount and nature of dietary fat on milk fat composition in the sow (1970) (11)
The effect on milk yield and composition of adding the calcium salts of acetic, propionic, butyric and lactic acids to the diets of dairy cows (1967) (11)
Interrelationships of the Concentrations of Sodium, Potassium, Lactose and Water in Milk (1958) (11)
Indirect Determination of Water Retention in Cattle as a means of estimating Energy Exchange (1953) (10)
The metabolism of [U-14C]glucose, [1-14C]palmitic acid and [1-14C]stearic acid by the lactating mammary gland of the sow (1971) (9)
The production of milk rich in protein and low in fat, the fat having a high polyunsaturated fatty acid content. (1980) (9)
Investigations into the use of supplements for the control of hypomagnesaemia in dairy cows during the spring grazing period (1958) (9)
Magnesium in the dairy cow. VI. Metabolism on artificial diets low in magnesium (1964) (9)
A note on the influence of stage of lactation on the response in the lactose content of milk to a change of plane of energy nutrition in the cow (1972) (8)
The transfer of N-acetyl-4-aminoantipyrine and of thiocyanate from blood to milk (1966) (6)
Relationship between the pattern of ruminal fermentation and the flow of materials to the duodenum in sheep receiving a diet of barley, flaked maize and ground hay. (1971) (6)
Evaluation of Magnetic Grain Feeder for Lactating Dairy Cows (1978) (6)
The effect of intravenous infusion of oestrogen on lactation in the goat. (1970) (6)
The voluntary intake of acetate by dairy cows given ammonium salts of short-chain fatty acids in their drinking water. (1968) (6)
Hypomagnesaemia and Grass Tetany in Dairy Cattle (1962) (6)
Site of magnesium absorption in the sheep. (1975) (6)
The pattern of release of free fatty acids from milk fat under the action of intrinsic and added lipases (1970) (5)
A new approach to the measurement of the quantitative effects of inherent and environmental factors on the composition of the milk of individual cows and of herds, with particular reference to lactose content (1968) (5)
SPONTANEOUS AND INDUCED MAGNESIUM DEFICIENCY IN RUMINANTS (1969) (5)
Principles involved in manipulating the yields and concentrations of the constituents of milk. (1980) (4)
The winter decline in the solids-not-fat content of herd bulk-milk supplies (1969) (4)
Energy nutrition and milk secretion in the dairy cow. (1964) (4)
DIETARY MANIPULATION OF THE COMPOSITION AND QUALITY OF MILK AND MILK PRODUCTS (1977) (4)
NUTRITION OF THE COW AND ITS EFFECTS ON MILK QUANTITY AND QUALITY (1976) (4)
FACTORS AFFECTING THE PROTEIN CONTENT OF MILK (1971) (4)
A note on the use of molassed wood pulp as a substitute for farm roughages in experimental rations for dairy cattle (1959) (3)
9 – MANIPULATION OF RUMEN FERMENTATION (1981) (3)
The effects of intravenous infusions of triglycerides on the composition of milk fat in the sow (1970) (3)
The effect of energy nutrition on blood amino acid levels in the lactating cow. (1969) (3)
The measurement of the effects of inherent and environmental factors on the lactose content of the milk of individual cows and of the herd bulk milk in a number of commercial herds (1968) (3)
The physical form of a barley grain and barley straw diet and nitrogen metabolism in sheep. (1971) (2)
Dietary manipulation of the composition of milk. (1978) (2)
Responses in milk yield and composition to the inclusion of ammonium salts of short-chain fatty acids in the drinking water of dairy cows. (1970) (2)
ADVANCES IN THE CHEMISTRY OF MILK AND DAIRY PRODUCTS (1978) (2)
The rate of digestion of the dry matter of forage material conserved in different ways. (1980) (1)
Metabolic disorders relating to pregnancy and lactation (1969) (1)
Energy Metabolism in the Ruminant (1963) (1)
Faecal magnesium output and plasma Mg concentration in sheep. (1972) (1)
Studies on the energy metabolism of ruminants (1957) (0)
Symposium on 'manipulation of rumen fermentation'. Chairman's introduction. (1972) (0)
The effect of Mg deficiency on the energy exchange of calves. (1953) (0)
Current dairy research activity. (1980) (0)
Grass Tetany: (1964) (0)
Synthesis of milk fat from beta-hydroxybutyrate and acetate in lactating goats. (1974) (0)
The effect of glandular tissue on digestion in the sheep. (1972) (0)
Some factors associated with the late-winter decline in the lactose content of herd bulk milks (1974) (0)
The origin of tetany in magnesium deficiency. (1954) (0)
Professor J. W. G. Porter, M.A., Ph.D. (Cantab.), F.I.Biol. (1984) (0)

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What Schools Are Affiliated With J. A. F. Rook?

J. A. F. Rook is affiliated with the following schools:

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