Effect of Grinding and Pelleting on the Utilization of Coastal Bermuda Grass Hay by Dairy Heifers

King, W.A.; O’Dell, G.D.; Brannon, C.C.; Webb, H.J.

doi:10.3168/jds.s0022-0302(63)88959-6

Cited by 14 publications

(3 citation statements)

References 11 publications

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“…No differences were found between the nitrogen balances of animals offered different physical forms of the same forage. Similar results have been reported by several authors (King et al, 1963;Cottyn & Boucque, 1968;Coelho da Silva et al 1969). Also, no difference was observed in the loss of energy in the urine of sheep offered a range of physical forms in Exps.…”

Section: Forages Offered At Equal Intakesupporting

confidence: 91%

Intake and digestibility by sheep of artificially dried forages in several physical forms

Milne

Campling

1972

J. Agric. Sci.

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In three experiments high quality, autumn-harvested dried Italian ryegrass and lucerne in the form of cobs and pellets and in one of these experiments in the chopped form were offered to mature castrated male sheep at a maintenance level of feeding. Only small differences were found between the physical forms of forage in digestibility of organic matter, retention of nitrogen and loss of energy in the urine, but the digestibility of crude fibre and the mean retention time of stained feed in the gut decreased with decreasing particle size. Increasing the level of feeding of cobs and of pellets from 800 g daily by three equal increments of 400 g caused a linear decline in digestibility but no difference was found between cobs and pellets in the rate of decline of digestibility. In three experiments the dried forages were offered ad libitum and in a fourth experiment a wide range of particle size was simulated by offering ad libitum five ratios of chopped and pelleted grass. Voluntary intake tended to increase as the particle size was reduced over the whole range, but there was no significant difference between the voluntary intakes of mixtures with a modulus of fineness of 4-4 or less. No difference was detected between the voluntary intake of cobs and pellets.

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Section: Forages Offered At Equal Intakesupporting

confidence: 91%

Intake and digestibility by sheep of artificially dried forages in several physical forms

Milne

Campling

1972

J. Agric. Sci.

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“…Grinding decreased the digestibility of D.M. and CF which is in conformity with most of the evidence obtained in cattle and sheep by Rodrigue & Allen (1956), Minson (1963), King et al (1963), Beardsley (1964, Moore (1964), Meyer, Kromann & Carret (1965 and Wilkins et al (1972).…”

Section: Discussionsupporting

confidence: 90%

Some factors affecting voluntary food intake in buffaloes. 1. Effect of feeding long-chopped and ground roughages

Taparia¹,

Sharma²

1980

J. Agric. Sci.

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Three experiments each utilizing four buffalo heifers in 4 x 4 latin square designs were conducted over a period of 84 days to estimate the voluntary consumption of eight long-chopped and four ground roughages. Voluntary intake and rate of passage were determined during the last 10 days and digestibility of feed nutrients during the last 6 days of a 21-day experimental period.The mean daily dry-matter intake (DMI, g/kg W 0 ' 75 ), D.M. digestibility (%) and meai> retention time (h) of long and chopped feeds were 81-, respectively for maize silage, sorghum stover, dry grass, maize stover, berseem hay, wheat straw, pearl-millet stover and cowpea hay. Appreciable differences were observed between feeds in the digestibility of D.M., organic matter (OM) and crude protein (CP). No consistent pattern in level of intake and either CP or crude fibre (CF) contents of feeds or their D.M. digestibilities was discernible. The relationship between DMI and D.M. digestibility was low (r = 0-29). Higher DMI of feeds tended to be associated with faster rate of passage excepting maize silage and berseem hay. The relationship between D.M. digestibility and mean retention time was low (r = 0-46) and between total digestible nutrient intake and body weight was high (r = 0-79).The mean daily DMI (g/kg W°"' 5 ), D.M. digestibility (%) and mean retention time (h) of ground roughages were 68-7, 51-3, 58-0; 62-9, 38-4, 60-0; 62-4, 40-1, 63-0; 53-1, 66-6, 72-0, respectively for ground maize stover, wheat straw, dry grass and berseem hay. Ground roughages appeared to be utilized less efficiently by buffaloes than longchopped roughages. INTRODUCTIONclimatic conditions, various types of roughages such as straws, stovers, dry grass, hays and silages Two sets of factors affecting feed intake in farm in long-chopped form are used in rations of farm animals have been identified during the last two animals in India. Grinding of roughages is not decades. The first set of factors relate to the rate of common but pelleting of roughages to form disappearance of digesta from the reticulo-rumen, roughage-based diets necessitates grinding of often classified as physical factors, and are reviewed roughages. Concluding the results of several experiby ), Blaxter (1962), ments, Minson (1963 and Moore (1964) stated that Warner (1963), Van Soest (1965, Campling (1966a) advantage in intake due to grinding and pelleting and Conrad (1966). The second set of factors are depends upon the quality of the roughages. Intake primarily physiological and are reviewed by Balch of poor quality roughages increased owing ), Conrad (1966) and Jones(1972. grinding, whilst that of good quality roughages The voluntary intake of sole roughage diets of low remained unaffected. The work relating to factors nutritive value presumably depends upon the affecting voluntary intake of food noted above was rumen load, and the rate at which this load is carried out on cattle and sheep and little has been reduced is determined by the rate of passage of attempted on buffaloes. The contributio...

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“…No difference in the percentages of dry matter or holocellulose was found in the organs posterior to the rumen. O'Dell et al (1963), in slaughter experiments, found that the dry matter content of the entire digestive tract was 19^» I76 and 111 percent of the previous 24-hour intake for baled, ground and pelleted Coastal Bermuda hay, respectively. The dry matter content of the rumen accounted for most of the total and followed a similar pattern for the three forms of hay.…”

Section: Utilization and Huminal Fermentationmentioning

confidence: 96%

The influence of ration preparation and level of concentrate upon rumen protozoa and volatile fatty acid production in sheep

Luther

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Effect of Grinding and Pelleting on the Utilization of Coastal Bermuda Grass Hay by Dairy Heifers

Cited by 14 publications

References 11 publications

Intake and digestibility by sheep of artificially dried forages in several physical forms

Intake and digestibility by sheep of artificially dried forages in several physical forms

Some factors affecting voluntary food intake in buffaloes. 1. Effect of feeding long-chopped and ground roughages

The influence of ration preparation and level of concentrate upon rumen protozoa and volatile fatty acid production in sheep

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