Growth and carcass quality of prolific crossbred lambs fed silage with fish meal or different amounts of concentrate1

Petit, H.V.; Castonguay, F.

doi:10.2527/1994.7271849x

Cited by 24 publications

(16 citation statements)

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“…Gill et al [14] reported that fishmeal supplementation improved protein retention while levels of fat accretion declined or remained unchanged. Similar findings were observed in lambs [22]. Contrary to this, some studies have found little response when supplementing with fishmeal [30].…”

Section: Introductionsupporting

confidence: 76%

Fishmeal supplementation of steers fed on grass silage: effects on rumen function, nutrient flow to and disappearance from the small intestine

2001

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-Four Hereford × Friesian mature steers equipped with rumen, duodenal and ileal cannulas were fed on either grass silage alone (S) or silage supplemented with fishmeal (150 g . kg -1 silage dry matter intake; SFM) to assess effects on rumen fermentation, nutrient flow to and disappearance from the small intestine. The silage was a primary growth of perennial ryegrass with a total-N content of 24.5 g . kg -1 dry matter (DM). Ruminal concentrations of acetate, butyrate and ammonia-N were not different between treatments and averaged 51.7, 8.9 and 8.4 mmol . l -1 , respectively. However, molar proportion of propionate was higher on SFM compared to S, 18.7 and 17.6 (SEM 0.18, P < 0.05), respectively. The amount and efficiency of microbial protein synthesis were not different between treatments and averaged 71.0 g . d -1 and 35.8 g N . kg -1 organic matter digested in the rumen, respectively. Fishmeal supplementation increased the flow of total-N (P < 0.05), non-ammonia-N (P < 0.05), and total amino acids (P < 0.05) at the duodenum. Amino acid disappearance was increased by fishmeal supplementation, 488 and 717 g . d -1 (SEM 28.6, P < 0.05) for S and SFM, respectively. The apparent absorption coefficient for the total amino acids from the small intestine [(expressed as duodenalileal)/duodenal] was also increased, 0.57 and 0.72 (SEM 0.028, P < 0.06) for S and SFM, respectively.

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Section: Introductionsupporting

confidence: 76%

Fishmeal supplementation of steers fed on grass silage: effects on rumen function, nutrient flow to and disappearance from the small intestine

2001

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“…Although higher carcass lean yield was obtained with lambs showing lower ADG, their carcasses were penalized for inferior muscular development and lower grade. A similar relationship has previously been documented in lambs fed silage alone or supplemented with protein or concentrates (Petit and Castonguay 1994).…”

Section: Carcass Characteristicssupporting

confidence: 58%

Effects of mechanical treatment of whole canola seeds on carcass composition and blood lipids of lambs fed grass silage

Huard¹,

Seoane²,

Petit³

et al. 1998

Can. J. Anim. Sci.

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Huard, S., Seoane, J. R., Petit, H. V., Fahmy, M. H. and Rioux, R. 1998. Effects of mechanical treatment of whole canola seeds on carcass composition and blood lipids of lambs fed grass silage. Can. J. Anim. Sci. 78: 665-671. Thirty-three lambs (25.2 ± 2.7 kg BW) were used to study if mechanical treatment of canola seeds can exert an effect on carcass quality, blood lipids, and fatty acid profile of depot fat. All lambs received a basal diet of 179 g d -1 of a 16% CP commercial concentrate and grass silage fed ad libitum. The basal diet was supplemented with the following dietary treatments (dry matter basis): C, a control supplement supplying 182 g of a mixture of 66% canola meal and 34% canola oil; WCS, 187 g of whole canola seeds; RCS, 188 g of rolled canola seeds; and GCS, 189 g of ground canola seeds. Dressing percentage was higher (P < 0.05) for diet C (45.6%) than for WCS (42.5%) and RCS (41.9%). The highest and lowest carcass grades were obtained with diets C and RCS, respectively (P < 0.05). Blood lipid concentrations increased as the lambs grew older (P < 0.01). Lambs fed the GCS diet had lower plasma concentrations of total cholesterol and high density lipoprotein cholesterol than lambs fed the WCS or RCS diets (P < 0.05). Kidney fat of lambs on the C diet contained more trans -C 18:1 and less C 18:0 compared with the other diets (P < 0.01). The utilization of untreated or rolled canola seeds as protein and fat supplements decreased carcass quality, increased blood triglycerides and changed fatty acid composition of depot fat.Key words: Canola seeds, lambs, carcass composition, blood lipid Huard, S., Seoane, J. R., Petit, H. V., Fahmy, M. H. et Rioux, R. 1998. Effets du traitement mécanique de la graine de canola entière sur la composition des carcasses et les lipides sanguins d'agneaux nourris à l'ensilage d'herbe. Can. J. Anim. Sci. 78: 665-671. Trente-trois agneaux (25,2 ± kg 2,7 de poids vif) ont été utilisés afin de déterminer si le traitement mécanique de la graine de canola a un effet sur la qualité des carcasses, les lipides sanguins et le profile en acides gras du gras de réserve. Les agneaux ont reçu un régime de base de 179 g j -1 d'une moulée commerciale à 16% PB et de l'ensilage à volonté. Le régime de base a été supplémenté avec les traitements alimentaires suivants (base de MS): 1) C, 182 g d'un mélange de 66% de tourteau de canola et 34% d'huile de canola; 2) WCS, 187 g de graines de canola entières; 3) RCS, 188 g de graines de canola roulées; et 4) GCS, 189 g de graines de canola moulues. Le rendement de carcasses a été supérieur (P < 0,05) pour les agneaux recevant la ration C (45,6%) comparés à ceux recevant la ration WCS (42,5%) et la ration RCS (41,9%). Le classement des carcasses a été meilleur pour la ration C tandis que les agneaux recevant la ration RCS ont obtenu la moins bonne classification (P < 0,05). La concentration de lipides sanguins a été plus élevée à la fin qu'au début de l'expérience (P < 0,01). Les agneaux recevant GCS ont présenté des niveaux sanguins plus faible...

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“…Maize, sorghum and other grass silages supplemented with different protein sources (such as fish meal, concentrate and addition of nitrogen sources) increased growth rate of growing animals (Kim et al, 2000). Petit and Castonguay (1994) observed that the ADG was lower (P<0.01) for lambs fed sole silage than those fed the silage plus concentrate. Similar results were reported by Sartori et al (2004) with sunflower silage in sheep and Chauhan and Gupta (1992) in buffalo calves with oat silage.…”

Section: Results and Discussion Chemical Composition Of Feed Ingrediementioning

confidence: 86%

Effect of feeding sweet sorghum silage with or without supplementation on nutrient digestibilities and performance in Nellore brown ram lambs

Jalajakshi

Reddy

Prasad

2017

IJAR

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The present experiment was designed to evaluate the sweet sorghum (SS) silage which is both grain and forage yielding type, with or without supplementation in a 120 d growth-cum-digestion trial to develop SS silage based feeding system for growing ram lambs. Twenty four ram lambs (11.33 ±0.12 kg) were randomly divided into four groups of six each and fed SS silage, SS silage supplemented with dried subabul leaves, concentrate mixture and ground maize grain at 1% of their live weight. Digestibility study was conducted at the end of the growth trail following collection period of 7 days. The CP content of SS silage was 8.44%. ADG (g) was significantly (P<0.01) higher in lambs fed SS silage with supplements than without supplements. Feed conversion ratio (DMI kg/kg gain) in Nellore growing ram lambs ranged from 6.56-9.02 and significant difference (P<0.01) was observed among the experimental groups. Among the supplemental groups cost ( )/kg live weight gain was significantly (P<0.01) highest in ram lambs fed with concentrate followed by supplementation with dried subabul leaves and ground maize grain. No significant difference was found among the four groups for digestibility coefficients except for EE (P <0.01). Lambs fed on sole SS silage had significantly lower DMI, DCP and TDN intake (P <0.01) than those fed on SS silage with supplemental diets. Feeding sweet sorghum silage with supplements like top feeds, compound feed and maize grain at 1% of their body weight improved performance, nutrient digestibility and met energy/ protein requirements in growing lambs. It is concluded that supplementation of SS silage with ground maize at 1% of their live weight is considered to be economical for rearing of growing ram lambs.

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Growth and carcass quality of prolific crossbred lambs fed silage with fish meal or different amounts of concentrate1

Cited by 24 publications

References 0 publications

Fishmeal supplementation of steers fed on grass silage: effects on rumen function, nutrient flow to and disappearance from the small intestine

Fishmeal supplementation of steers fed on grass silage: effects on rumen function, nutrient flow to and disappearance from the small intestine

Effects of mechanical treatment of whole canola seeds on carcass composition and blood lipids of lambs fed grass silage

Effect of feeding sweet sorghum silage with or without supplementation on nutrient digestibilities and performance in Nellore brown ram lambs

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