Effect of increasing dietary canola meal inclusion on lactation performance, milk composition, and nutrient digestibility of lactating sows1

2017 ◽  
Vol 95 (7) ◽  
pp. 3129-3135 ◽  
Author(s):  
D. E. Velayudhan ◽  
C. M. Nyachoti
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Maryam Iqbal ◽  
Muhammad Afzal ◽  
Atif Yaqub ◽  
Khalid Mahmood Anjum ◽  
Komal Tayyab

Aquaculturists have been concentrating their efforts to design aquafeeds using agro by-products to reduce feed costs. However, the presence of a wide variety of antinutritional factors (ANFs) in plant materials is one of the major obstacles. For this purpose, a 2x2 factorial experiment was established to evaluate the suitability of canola meal with citric acid (CA) and phytase (PHY) supplementation for growth performance, nutrient digestibility and body composition of Labeo rohita fingerlings. Five isocaloric and isonitrogenous diets; D1 (control; without CA and PHY), D2 (CA 15 g/kg+PHY 1000 FTU/kg), D3 (CA 30 g/kg+PHY 1000 FTU/kg), D4 (CA 15 g/kg+PHY 2000 FTU/kg) and D5 (CA 30 g/kg+PHY 2000 FTU/kg) were fed to fish (mean initial weight 7.61±0.31 g) in triplicates for 90-days. The growth performance was significantly increased while feed conversion ratio was decreased with D3 compared to control and other CA and PHY supplemented groups (P<0.05). Furthermore, higher digestibility (%) of nutrients (dry matter, crude protein and ash) and improved whole-body composition was also exhibited by fish fed with D3 (P<0.05). Hence, the above results elucidate that supplementation of 30 g/kg CA with 1000 FTU/kg PHY could be a useful approach for improved growth performance, nutrients digestibility and body composition of L. rohita.


1997 ◽  
Vol 77 (1) ◽  
pp. 133-140 ◽  
Author(s):  
A. F. Mustafa ◽  
D. A. Christensen ◽  
J. J. McKinnon

Two studies were undertaken to evaluate the nutritive value of high fiber canola meal (HFCM) relative to regular canola meal for ruminants. In the first study, 21 growing lambs were utilized in a randomized complete block design to determine the total tract digestion coefficients of dry matter (DMD), crude protein (CPD), gross energy (GED), neutral (NDFD) and acid (ADFD) detergent fiber and the digestible energy (DE) contents of seven dehydrated alfalfa-based diets containing 0, 250, 500 and 750 g kg−1 HFCM or canola meal. In the second study, the effect of feeding HFCM as a protein supplement to dairy cows relative to canola meal and soybean meal (SBM) was examined in a triple 3 × 3 Latin square design. Results of the first study showed that HFCM had lower (P < 0.05) DMD, CPD, GED and DE contents than canola meal. The estimated DMD, CPD and GED and DE contents for HFCM were 674 and 795 g kg−1, 695 kJ MJ−1 and 13.68 MJ kg−1, respectively. The corresponding values for canola meal were 707 and 841 g kg−1, 727 kJ MJ−1 and 14.10 MJ kg−1, respectively. Results of the second study showed that protein supplement source had no effect on DM intake, milk yield, milk fat g kg−1, lactose g kg−1 and total solid g kg−1. However, cows fed HFCM- and canola meal-based diets produced milk with lower (P < 0.05) protein content than those fed the SBM-based diet. It was concluded that HFCM had lower total tract nutrient digestion coefficients and DE content compared with canola meal. Incorporation of HFCM in dairy rations up to 100 g kg−1 of the ration had no adverse effect on milk yield or milk composition compared with canola meal. Key words: High fiber, canola meal, total tract digestibility, lactation


2018 ◽  
Vol 2 (2) ◽  
pp. 162-168 ◽  
Author(s):  
Chantal Farmer ◽  
Kevin Herkelman ◽  
Brad James ◽  
Pierre Lessard ◽  
Arnaud Samson ◽  
...  

Abstract The impact of diet deprivation followed by overallowance during gestation on metabolic status of pregnant gilts and their lactation performance was determined. Gilts were fed a standard diet until day 27 of gestation and were subsequently reared under a control (CTL; n = 28) or an experimental (treatment, TRT; n = 26) dietary regimen. The experimental regimen provided 70% (restriction diet, RES) and 115% (overallowance diet, OVER) of the protein and NE contents provided by the CTL diet. The RES diet was given from days 28 to 74 of gestation followed by the OVER diet from day 75 until farrowing. Blood samples were obtained from all gilts on days 28, 75, and 110 of gestation, and on days 3 and 20 of lactation to measure concentrations of IGF-1, urea, FFA, and glucose. Milk samples were collected from 12 sows per treatment on day 19 of lactation and sow feed intake was recorded daily throughout lactation. Piglets were weighed at 24 h (after standardization of litter size), and on days 7, 14, and 21 (weaning). The TRT gilts gained less BW than CTL gilts (17.3 vs. 31.7 kg; P &lt; 0.01) from days 28 to 75 of gestation and more BW (29.5 vs. 21.9 kg; P &lt; 0.01) from days 75 to 110, but their overall gain from mating to day 110 was lower (61.4 vs. 67.2 kg; P &lt; 0.05). Metabolic status during gestation was affected, with TRT gilts having less IGF-1 and urea, and more FFA than CTL gilts on day 75 (P &lt; 0.01), and more urea on day 110 (P &lt; 0.01). Growth rate of suckling piglets, sow lactation feed intake, and standard milk composition in late lactation (DM, fat, protein, lactose) were not affected by treatment (P &gt; 0.10). In conclusion, diet deprivation of gilts as of day 28 of gestation followed by overfeeding from day 75 of gestation until farrowing did not improve lactation performance. It is likely that the compensatory growth that took place in late gestation was not adequate to illicit beneficial effects.


Animals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 549
Author(s):  
Xiaoli Zhang ◽  
Chunyu Jiang ◽  
Qinghua Gao ◽  
Duanqin Wu ◽  
Shaoxun Tang ◽  
...  

This study evaluated the effects of alkyl polyglycoside (APG), which is a non-ionic surfactant, on lactation performance, nutrient digestibility and blood metabolites in dairy cows. Twenty dairy cows were randomly divided into four groups and fed a basal diet that included pelleted concentrate, distillers grains, and fresh limpograss. The four treatments included 0, 5.5, 11 and 22 mL APG per kg of pelleted concentrate on a dry matter basis; treatments were defined as APG0, APG5.5, APG11, and APG22, respectively. Dry matter intake was not affected by APG supplementation. There was an increase in milk yield (from 13.96 to 16.71 kg/day) and increases in milk fat (quadratic, p = 0.04), protein (quadratic, p = 0.10), and lactose concentrations (linear, p = 0.07) with increasing APG supplementation. In addition, APG supplementation increased (p ≤ 0.03) the milk fat, protein, solid non-fat, and total solid yields, while the lactose yield increased (linear, p = 0.01) as the APG level increased. Dietary APG supplementation had no effect on nutrient digestibility and blood metabolites. It was concluded that the addition of APG at doses up to 22 mL/kg of pelleted concentrate had positive effects on the milk composition in dairy cows.


1980 ◽  
Vol 30 (3) ◽  
pp. 341-354 ◽  
Author(s):  
R. W. J. Steen ◽  
F. J. Gordon

ABSTRACTA 3 × 2 factorial design experiment using 84 British Friesian cows was conducted to assess the effect of offering three types of grass silage and two levels of concentrate supplementation during early lactation on the total lactation performance of cows which calve during January and February. The three types of silage were early-cut wilted (ECW), early-cut unwilted (ECU) and late-cut unwilted (LCU), and the two levels of concentrate supplementation were 538 kg (LC) and 738 kg (HC) during a mean post-calving period of 71 days. The animals had a mean calving date of 29 January and were blocked according to calving date, and allocated at random to the treatments within each block on day 7 of lactation. The treatments were applied from day 7 of lactation until the animals were turned out to pasture on 18 April. Mean milk yields for the indoor period were: HC treatments 1963 (ECW), 1979 (ECU) and 1830 (LCU); LC treatments 1938 (ECW), 1942 (ECU) and 1731 (LCU) ± 41·3 kg; and for the total lactation were: HC treatments 5375 (ECW), 5438 (ECU) and 5284 (LCU); LC treatments 5509 (ECW), 5529 (ECU) and 5316 (LCU) ± 184·1 kg. There was no significant interaction between silage type and level of concentrate supplementation.Milk composition, animal live weight and body condition were not significantly affected by either silage type or level of concentrate supplementation.


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