Digestibility and Effects of Whole Cottonseed Fed to Lactating Cows

Smith, Nathan R.; Collar, L. S.; Bath, D.L.; Dunkley, W.L.; Franke, A.A.

doi:10.3168/jds.s0022-0302(81)82831-7

Cited by 115 publications

(37 citation statements)

References 15 publications

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“…Replacement of barley with URS or GRS improved (P < 0.05) ether extract digestibility, an effect also found by Palmqvist and Conrad (1978), Smith et al (1981) and van der Honig et al (1981) with various types of added fats. In contrast, Murphy et al (1984) reported lower total fatty acid digestibility with increasing levels of rapeseed in the diet.…”

Section: Resultssupporting

confidence: 55%

“…Also the method by which the lipids are incorporated into the diet can affect fibre digestibility. Smith et al (1981) did not find any effect on cellulose digestibility when complete rations contained up to 25 % whole cottonseed. When soyabean oil was given as cracked soyabeans instead of free oil, rumen fermentation was less affected, because the milk fat content was higher on cracked soyabean diet (Steele et al 1971).…”

Section: Resultsmentioning

confidence: 96%

“…Smith et al (1981) and Rafalowski and Park (1982) did not find whole cottonseed or whole sunflower seed to (Salo et al 1982) but the value for OM and is lower and that for CF higher. The apparent digestibility of CP tended to be higher on URS and GRS diets than on the basal diet.…”

Section: Resultsmentioning

confidence: 99%

“…P Almqvist and Jenkins (1980) reported that calcium improves fibre digestibility in high fat diets by forming insoluble soaps. Full fat oilseeds have mainly been used for dairy cows: for example, crushed soyabeans (Steele et al 1971), whole cottonseed (Smith et al 1981), whole sunflower seed (Rafalowski and Park 1982) and rapeseed (Frank 1979). Murphy et al (1984) studied the effect of rapeseed on rumen and total digestibility in dairy cows.…”

mentioning

confidence: 99%

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Effect of full-fat rapeseed on digestibility and rumen fermentation in cattle

Huhtanen

Poutiainen

1985

AFSci

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The effect of whole crushed rapeseed on ration digestibility was determined with three bulls, average live weight 155 kg, and the effect on rumen fermentation with a heifer fitted with a rumen fistula. The basal diet (B) contained 50 % of grass silage and 50 % of rolled barley of total DM. In experimental diets 30 % of barley was replaced with crushed rapeseed fed either untreated (URS) or treated with 1.2% of Gasol solution (GRS). The feeding level was 80 g DM/kg W0.75 for the bulls and 60 g DM/kg W0.75 for the heifer. The average digestibilities of the diets were 73.9 (B), 71.6 (URS) and 72.7 % (GRS) for organic matter. There were no significant differences in apparent digestibility of crude protein or crude fibre. The digestibility of ether extract was higher (P < 0.05) and that of NFE lower (P < 0.01) on rapeseed diets. Nitrogen retentions were 28.4, 30.9 and 33.7 g/d, respectively, for the three treatments. On rapeseed diets the rumen pH was higher (P < 0.05) and the total VFA and ammonia N concentration lower (P < 0.01, P < 0.05) than on control diet. Rapeseed increased the proportion of propionic acid (P < 0.01) and decreased the proportion of butyric acid (P < 0.01) in rumen VFA. The rate of degradation of DM and CP in the rumen was slower for Gasol-treated rapeseed than for untreated rapeseed. Rapeseeds did not have a negative effect on the rate of degradation of silage or hay in the rumen determined by nylon bag method. But replacement of barley with rapeseed tended to decrease the degradation rate of silage crude protein. There were no significant differences between the treatments in blood constituents.

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Section: Resultssupporting

confidence: 55%

Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

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Effect of full-fat rapeseed on digestibility and rumen fermentation in cattle

Huhtanen

Poutiainen

1985

AFSci

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“…Isso se reflete no alto conteúdo energético, cerca de 2,23Mcal de energia líquida para a lactação (ELL). O óleo é rico em ácidos graxos insaturados como o linoléico (62%) e o oléico (15%) (Smith et al, 1981).…”

Section: Introductionunclassified

Silagens de girassol e de milho em dietas de vacas leiteiras: produção e composição do leite

Silva¹,

Leite²,

Ferreira³

et al. 2004

Arq. Bras. Med. Vet. Zootec.

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RESUMOAvaliaram-se a produção e a composição do leite de vacas alimentadas com dietas contendo diferentes proporções de silagem de girassol, em substituição à silagem de milho na dieta, e caroço de algodão como substituto parcial do concentrado. Foram utilizadas cinco vacas holandesas com 25kg leite/dia, distribuídas em um delineamento em quadrado latino 5×5. Os períodos foram de 21 dias e os tratamentos foram as dietas compostas por: 100% de silagem de girassol e concentrado (100SG), 66% de silagem de girassol e 34% de silagem de milho e concentrado (66SG), 34% de silagem de girassol mais 66% de silagem de milho e concentrado (34SG), 100% de silagem de milho e concentrado (100SM) e 100% de silagem de milho mais caroço de algodão (16,5% da matéria seca) e concentrado (16,5CA). As produções de leite, proteína e extrato seco total foram inferiores no tratamento 100SG em relação ao 100SM (P<0,05). A substituição parcial de silagem de milho por silagem de girassol não afetou as produções de leite, gordura ou proteína. A substituição parcial de concentrados por caroço de algodão não afetou as características estudadas.Palavras-chave: gado leiteiro, girassol, silagem ABSTRACT Milk production and composition of Holstein cows fed diets in which sunflower

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Performance of growing-fattening lambs fed whole cotton seed

Kandylis¹,

Nikokyris²,

Deligiannis³

1998

J. Sci. Food Agric.

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Effects of diets containing increasing levels of whole cotton seed (WCS) on feed intake, liveweight gain, feed conversion, feeding margin and carcass characteristics were studied. Diets contained 0, 5, 10, 15, 20 and 30% WCS and were fed ad libitum to growing lambs for 54 days. All diets were approximately isonitrogenous (163–186 g crude protein kg−1 dry matter) and isocaloric (19–20 MJ gross energy kg−1 of dry matter). During the first 28 days, four groups of 10 Karagouniko male lambs with initial liveweights of approximately 17·6 kg were fed diets containing 0, 5, 10 and 15% WCS and then, for the next 26 days, diets containing 0, 10, 20 and 30% WCS, respectively. Lambs fed the 15–30% WCS diet ingested about 20 mg kg liveweight−1 day−1 of free gossypol. At 54 days and liveweights of approximately 34·7 kg, five lambs from each treatment were slaughtered and carcass data were collected. There were significant differences in feed intake, liveweight gain, cooler shrink, rumen contents, intestinal fat and liver weight among the lambs fed these diets. Cooler shrink and intestinal fat, and perirenal fat and the combined weight of intestinal and perirenal fat, were significantly (P < 0·05) correlated. Pelleting of the WCS diets reduced the concentration of free gossypol in these diets. It was concluded that WCS was satisfactory as a feed ingredient for growing sheep and can be incorporated into ruminant diets as a source of energy and protein. No indication of gossypol toxicity was detected. © 1998 Society of Chemical Industry

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Digestibility and Effects of Whole Cottonseed Fed to Lactating Cows

Cited by 115 publications

References 15 publications

Effect of full-fat rapeseed on digestibility and rumen fermentation in cattle

Effect of full-fat rapeseed on digestibility and rumen fermentation in cattle

Silagens de girassol e de milho em dietas de vacas leiteiras: produção e composição do leite

Performance of growing-fattening lambs fed whole cotton seed

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