Effect of supplementation with rumen undegradable protein on milk production and ovarian activity in double purpose cows

Garduza-Arias, Gabriela; Garcia-Bojalil, C.M.; Mendoza, G.D.; Sánchez-Torres, María Teresa; Suarez, M. E.; Guzmán, Adrián

doi:10.1080/09712119.2012.739088

Cited by 5 publications

(3 citation statements)

References 24 publications

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“…However, to the best of our knowledge, greater differences between the protein levels are required to observe effects on productive or reproductive parameters. For example, in double‐purpose cows, an increase of 30–45% of rumen undegradable protein did not affect milk production or dry matter digestibility (Garduza‐Ariasa et al., ). Similarly, in sow (Silva et al., ) and sheep (Nnadi et al., ) experiments, CP level differences of 3.2% or 4% did not affect the female corporal body weight or litter size.…”

Section: Discussionmentioning

confidence: 99%

Short‐term methionine supplementation during the early post‐partum period in primiparous rabbits improves prolificacy associated with an increase in serum concentrations of IGF‐I

López-Cedillo

Rosales‐Torres

Mendoza

et al. 2016

Animal Physiology Nutrition

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The aim of this study was to evaluate the effects of methionine supplementation on energy metabolism and reproductive performance during the early post-partum period in primiparous does. Forty nulliparous New Zealand White does were used. Females were randomized in two groups at calving: the control group (n = 20) was fed with the basal diet, and the methionine group (n = 20) was fed the basal diet plus 1 g/animal/day of methionine from the day of calving to 4 days post-partum. Results showed that methionine supplementation increased (p = 0.032) the concentration of insulin-like growth factor-1 with respect to control group 4 days post-partum. It similarly increased the prolificacy (p = 0.03), the number of kits born alive per litter (p = 0.06) and the body gain weight of the litter during supplementation (p = 0.035). These results were observed despite the does in the methionine group having a deeper negative energy balance than the does in the control group. Finally, methionine supplementation did not affect receptivity (p = 0.23), fertility (p = 0.49), the number of kits born dead per litter (p = 0.86) insulin and metabolites as glucose, non-esterified fatty acids and triglycerides. In conclusion, our results show that methionine supplementation during the first 4 days of the post-partum period in rabbits increases total litter size and the corporal weight of kits and is associated with an increase in blood concentration of IGF-1.

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Section: Discussionmentioning

confidence: 99%

Short‐term methionine supplementation during the early post‐partum period in primiparous rabbits improves prolificacy associated with an increase in serum concentrations of IGF‐I

López-Cedillo

Rosales‐Torres

Mendoza

et al. 2016

Animal Physiology Nutrition

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“…Similarly, Marghazani found higher milk yield from 40% RUP on supplementation of (30,40,50 and 60%) rumen undegradable protein. Garduza-Arias [20] found that the average milk production was not affected by the amount of RUP (30 and 40%) in the supplement. In the study of Zhai [21] no significant difference in milk yield was observed on supplementation of different levels of RUP (30.8,36.2, and 41.6%).…”

Section: Effect Of Protein On Milk Yieldmentioning

confidence: 94%

“…Nutrition has direct impacts on milk composition [24]. On supplementation of RUP (30 and 40%) milk fat was not affected by the amount of supplement [20]. Similarly, on supplementation of 11.3 10.1, 8.8 and 7.6% RDP on DM basis and RUP (7.1%), milk protein yields were not significantly affected.…”

Section: Effect Of Protein On Milk Compositionmentioning

confidence: 99%

Effects of Quality and Amounts of Dietary Protein on Dairy Cattle Reproduction and the Environment

Salo¹

2018

JDVS

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The objective of this paper is to review the effects of quality and amounts of dietary protein on dairy cattle reproduction and the environment. Protein supplementation is one of important nutrient in dairy production. But, an excess amount of protein beyond the requirements of dairy cow affects reproduction as well as the environment. Protein is needed to meet nitrogen requirements of rumen microorganisms as well as used as a direct source of protein for milking cows. An excess amount of rumen degradable protein can be excreted into the environments and impose an impact on it. Excess rumen degradable protein also results in high amounts of ammonia in the blood of dairy cow when there is no sufficient amount of energy to convert ammonia into microbial protein. In addition, conversion of excess ammonia is energy demanding which can result in negative energy balance. This excess ammonia and negative energy balance result in reduced reproductive performance in dairy cows. Therefore, it is important to optimize rumen degradable and rumen undegradable protein content of diets and synchronization of protein with energy is best strategies to overawed ammonia pollution and reproductive problem in the dairy cows.

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Evaluation of local energy sources in milk production in a tropical silvopastoral system with Erythrina poeppigiana

Jiménez‐Ferrer

Mendoza

Pinto

et al. 2015

Trop Anim Health Prod

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An experiment was carried out to determine the effect of four local energy sources (sorghum grain, green banana, polished rice, and sugarcane molasses) fed to dairy cows on intake, milk production and composition, and economic viability in a silvopastoral system in Costa Rica (Turrialba). Twelve grazing cows (Jersey × Central American Milking Creole), with a mean live weight of 332 kg (SD 34), were supplemented with 0.5 kg of dry matter (DM)/100 kg/LW of Erythrina porppigiana fresh foliage daily. Experimental design was a replicated change-over 4 × 4 Latin Square. The pasture composition was 11 and 17 % of star grass (Cynodon niemfuensis), 32 and 28 % of ruzzi grass (Brachiaria rusisiensis), and 45 and 42 % of natural grasses (Axonopus compresus and Paspalum conjugatum) at initial and final times of the essay, respectively. The grass allowance was 30.14 DM/cow/day. Significant differences were found among treatments for variable milk fat content (P < 0.05). Sorghum presented the highest (41.2 g/kg milk) content of milk fat, followed by green banana (39.2 g/kg milk), polished rice (38.3 g/kg milk) and molasses (38.1 g/kg milk). Non-significant differences (P > 0.05) resulted for total milk production (sorghum 9.0 kg/cow/day; green banana 8.9 kg/cow/day; polished rice 8.8 kg/cow/day; molasses 8.6 kg/cow/day) and fat-corrected milk (FCM). The financial analysis showed that all treatments were economically viable; however, supplementation with green bananas and molasses were the most favorable due to the low costs incurred.

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Effect of supplementation with rumen undegradable protein on milk production and ovarian activity in double purpose cows

Cited by 5 publications

References 24 publications

Short‐term methionine supplementation during the early post‐partum period in primiparous rabbits improves prolificacy associated with an increase in serum concentrations of IGF‐I

Short‐term methionine supplementation during the early post‐partum period in primiparous rabbits improves prolificacy associated with an increase in serum concentrations of IGF‐I

Effects of Quality and Amounts of Dietary Protein on Dairy Cattle Reproduction and the Environment

Evaluation of local energy sources in milk production in a tropical silvopastoral system with Erythrina poeppigiana

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