Relationship between main reproductive parameters and productivity traits in dairy cows

Mišeikienė, R.; Tušas, S.; Kerzienė, S.; Rudejevienė, J.; Matusevičius, P.; Orzechowski, B.; Miciński, J.

doi:10.1590/1678-4162-12492

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Animal Science and Technology and Inspection of Animal Products • Arq. Bras. Med. Vet. Zootec. 74 (4) • Jul-Aug 2022 • https://doi.org/10.1590/1678-4162-12492 linkcopy

Relationship between main reproductive parameters and productivity traits in dairy cows

[Relação entre os principais parâmetros reprodutivos e características de produtividade em vacas leiteiras]

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The objective of this study was to determine relationship between Lithuanian dairy cow breed productive and reproductive traits. The study was carried out with 586 fully completed lactation cows: 184 Lithuanian Holstein (H), 320 Lithuanian Black and White (LBW) and 82 Lithuanian Red (LR) cows (291 cows in I, 149 in II and 146 in III and older lactations). Cow productivity and reproduction traits were calculated. H cows in I lactation had a lower insemination index compared to the LR, shorter calving interval (P≤0.05) and service period (P≤0.05) than LBW cows. LBW cows produced 1440.46kg more milk (P≤0.05) with less milk fat and protein content (accordingly 0.28 and 0.22 percent) (P≤0.05) compared with the LRd. The service period of LBW older lactation cows was 21.38 days longer and the insemination index was 0.68 times higher compared to the I lactation cows (P<0.05). LR cows of III and older lactations produced 3742kg more milk (P≤0.05) compared with the I lactation. All cows from 131 and more service period days produced 1420kg more milk with 0.51 percent less fat (P≤0.05) and 0.1 percent less protein than cows with the service period from 91 till 110 days (P≤0.05).

Key words: cow; breed; reproduction; production

Breed	Lactation	n	Service period, days	Insemination index, times	Days up to max yield
H	I	78	106.47±6.34	1.71±0.18a	98.16±7.30a
	II	67	109.75±7.69	1.91±0.19b	54.69±5.31b
	III and older	47	107.23±7.26	2.05±0.22b	58.50±6.35b
LBW	I	164	113.86±5.70a	1.95±0.13a	93.98±4.82a
	II	64	116.29±8.26a	2.16±0.19b	69.52±7.87b
	III and older	99	135.24±6.20b	2.63±0.19c	61.45±4.18c
LR	I	49	100.65±6.92a	1.87±0.21	84.52±8.68a
LR	II	18	135.88±17.93b	2.5±0.63	51.38±5.15b

Breed	Milk yield, kg	Fat, %	Protein, %	SCC, thousand/ml
H	9133.22±189.44a	4.64±0.10a	3.60±0.04a	337.84±79.47
LBW	9698.19±156.43b	4.35±0.07b	3.49±0.03b	325.28±68.03
LR	8257.73±335.94c	4.63±0.15	3.71±0.07a	415.27±132.38

Breed	Lactation	n	Service period, days	Insemination index, times	Days up to max yield
H	I	78	106.47±6.34	1.71±0.18 a	98.16±7.30 a
	II	67	109.75±7.69	1.91±0.19 b	54.69±5.31 b
	III and older	47	107.23±7.26	2.05±0.22 b	58.50±6.35 b
LBW	I	164	113.86±5.70 a	1.95±0.13 a	93.98±4.82 a
	II	64	116.29±8.26 a	2.16±0.19 b	69.52±7.87 b
	III and older	99	135.24±6.20 b	2.63±0.19 c	61.45±4.18 c
LR	I	49	100.65±6.92 a	1.87±0.21	84.52±8.68 a
LR	II	18	135.88±17.93 b	2.5±0.63	51.38±5.15 b

Service period, days	Breed	N	Insemination index, times	Days to max milk yield	Maximum daily yield, kg
up to 70	H	44	1.00±0.00	82.23±9.24	43.44±1.54
	LBW	46	1.04±0.04	84.65±9.38	42.11±1.73
	LR	12	1.00±0.00	71.17±15.05	38.98±3.15
71 - 90	H	36	1.22±0.10	71.83±9.63	41.38±1.27
	LBW	66	1.42±0.09	82.03±8.10	44.81±1.38
	LR	18	1.44±0.18	78.11±10.97	41.26±2.72
91 - 110	H	24	1.58±0.19	69±13.48	45.15±1.55 a
	LBW	40	1.75±0.18	77.10±8.55	40.72±1.34 b
	LR	24	1.92±0.19	83.50±13.81	39.61±1.7 b
111 - 130	H	12	2.17±0.40	54.83±13.93	47.25±2.05 b
	LBW	48	2.08±0.15	82.46±8.27	44.41±1.52 b
	LR	6	2.00±0.00	60.00±3.00	33.73±2.09 a
131 and more	H	68	2.79±0.19	73.76±7.26	43.73±0.92
	LBW	120	3.27±0.15	75.15±5.31	46.18±0.92
	LR	22	3.18±0.44	59.55±7.60	42.19±1.99

Insemination index, times	Breed	n	Milk yield, kg	Fat content, %	Protein content, %
1	H	92	8610.89±249.04 A	4.85±0.13 A	3.67±0.05 a; A
	LBW	114	9073.25±224.3 b; A	4.51±0.12	3.51±0.04 b
	LR	30	7844.4±560.63 a	4.43±0.25	3.51±0.07 A
2	H	48	9031.67±314.17 A	4.32±0.2 B	3.44±0.09 b; B
	LBW	98	9762.47±245.31 a; B	4.41±0.13	3.52±0.06 b
	LR	34	8103.29±486.83 b	4.88±0.25	3.86±0.1 a; B
3	H	28	10854.64±445.18 B	4.72±0.23 a	3.69±0.11 b
	LBW	58	9641.55±440.31	4.06±0.14 b	3.4±0.06 a
	LR	10	9940.4±1278.18	4.52±0.47	3.88±0.44 b
4 and older	H	16	9428.75±688.32 b	4.23±0.27	3.52±0.16
	LBW	50	11062.8±395.58 a; B	4.2±0.13	3.51±0.08
	LR	8	8360.75±630.43 b	4.45±0.3	3.63±0.19

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Universidade Federal de Minas Gerais, Escola de Veterinária Caixa Postal 567, 30123-970 Belo Horizonte MG - Brazil, Tel.: (55 31) 3409-2041, Tel.: (55 31) 3409-2042 - Belo Horizonte - MG - Brazil
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[TFN1] a, b - means in the column with different superscripts differed significantly (P≤0.05) The distribution of productivity indicators of different cow breeds is presented in Table 2. LBW cows produced an average 1440.46kg (14.85%) more milk than LR cows (P≤0.05). In the milk of H breed cows were found 0.29 % more fat and 0.11% higher protein content compared to LBW cows (P≤0.05). LR cows produced the most protein-enriched milk. Milk with the lowest somatic cells count was found in LBW breed cows.